ACHIEVE LIFE SCIENCES, INC.

OVERVIEW OF OUR BUSINESS AND RECENT DEVELOPMENTS

We are a late-stage clinical specialty pharmaceutical company with the sole mission to address the global nicotine dependence epidemic through the development and commercialization of cytisinicline. There are an estimated 29 million adults in the United States alone who smoke combustible cigarettes and an estimated 17 million adults in the United States who utilize e-cigarettes. Tobacco use is currently the leading cause of preventable death and is responsible for more than eight million deaths worldwide and nearly half a million deaths in the United States annually. More than 87% of lung cancer deaths, 61% of all pulmonary disease deaths, and 32% of all deaths from coronary heart disease are attributable to smoking and exposure to secondhand smoke. Our primary focus is to address this global epidemic.

While nicotine e-cigarettes are thought to be less harmful than combustible cigarettes, they remain highly addictive and can deliver harmful chemicals which can cause lung injury or cardiovascular disease. In 2024, 1.6 million high school and middle school students reported using e-cigarettes. Research shows adolescents who have used e-cigarettes are seven times more likely to become smokers one year later compared to those who have never used e-cigarettes. In 2024, the FDA granted Breakthrough Therapy designation for cytisinicline for nicotine e-cigarette, or vaping, cessation. Breakthrough Therapy designation is a process that expedites the development and review of new drugs and biologics that are intended to treat serious or life-threatening conditions and have preliminary clinical evidence indicating substantial improvement over existing therapies.

In October 2025, the FDA awarded cytisinicline for nicotine e-cigarette, or vaping, cessation the Commissioner’s National Priority Voucher, or CNPV, as part of the pilot program. A CNPV is granted to product candidates with significant potential to address a major national priority, such as meeting a large unmet medical need, reducing downstream health care utilization or addressing a public health crisis. CNPV recipients will receive a decision from the FDA within one to two months following filing of a complete application for a drug, as well as enhanced communication with review staff throughout the development process prior to their final submission and during the review period. Currently, there are no FDA-approved therapies indicated specifically as an aid for nicotine e-cigarette cessation.

In September 2025, we announced that the FDA accepted for review our New Drug Application, or NDA, for cytisinicline as a treatment for smoking cessation as the first indication in the United States and assigned a Prescription Drug User Fee Act, or PDUFA, targeted action date of June 20, 2026. One third-party manufacturer named in our cytisinicline NDA recently underwent an, non-Achieve related, FDA current Good Manufacturing Practices, or cGMP, inspection and FDA made two observations related to solid oral dose manufacturing, which are being addressed through an ongoing communication with FDA of the company’s remedial action plan. While unclear, there is potential for a delay in FDA approval beyond the PDUFA targeted action date of June 20, 2026. We have partnered with a U.S.-based manufacturer, Adare Pharma Solutions, or Adare, to manufacture cytisinicline drug product for potential commercial launch and beyond and have commenced a technology transfer (see Note 11 "Related Party Transactions" in the accompanying consolidated financial statements). We expect the partnership with Adare to provide supply chain redundancy and U.S.-based contingency capacity, help decrease risks related to international importation of pharmaceuticals and reduce costs, including potential tariffs. By establishing U.S. manufacturing with Adare, we expect to decrease our supply chain risk as we progress toward commercial launch of cytisinicline, anticipated to take place in the first-half 2027. We believe cytisinicline is differentiated from existing smoking cessation treatments given its combination of efficacy, well-tolerated safety profile, and dosing flexibility with a 6 or 12-week regimen, as demonstrated in clinical trials.

Cytisinicline as our Product Candidate

Our product candidate, cytisinicline, is a naturally occurring alkaloid. In 2018, the U.S. Adopted Names Council adopted cytisinicline as the non-proprietary, or generic, name for the substance also known as cytisine.

Cytisinicline is structurally similar to nicotine and has a well-defined, dual-acting mechanism of action, being both a receptor agonist and antagonist. It is believed to work in treating nicotine dependence for smoking and e-cigarette cessation by interacting with nicotine receptors in the brain by reducing the severity of craving and withdrawal symptoms, and reducing the reward and satisfaction associated with nicotine products. Cytisinicline is an investigational product candidate being developed for treatment of nicotine dependence and has not been approved by the FDA for any indication in the United States.

Cytisinicline as a 25-day downward titration regimen is an established smoking cessation treatment that has been approved and marketed in Central and Eastern Europe by Sopharma AD, or Sopharma, for over 20 years. It is estimated that over 20 million people have used Sopharma’s cytisinicline product to help treat nicotine dependence. We have developed an improved dosage, formulation, and simpler treatment schedule. We have an exclusive license and a supply agreement with Sopharma for the development and commercialization of cytisinicline outside of Sopharma’s territories, which are predominately located in Central and Eastern Europe.

Cytisinicline Mechanism of Action

Cytisinicline binds with high affinity to the alpha-4 beta-2, or α4β2, nicotinic acetylcholine receptors in the brain. The α4β2 nicotinic receptor is a well-understood target in dependence. When nicotine binds to this receptor, it causes dopamine to be released in the mid-brain, reinforcing the reward system. This receptor has been implicated in the development and maintenance of nicotine dependence. Cytisinicline is believed to act as a partial agonist/antagonist binding to α4β2 nicotinic receptors in the brain and is thought to have two potential consequences in treating nicotine dependence. First, the partial agonism maintains some release of dopamine (albeit at a very reduced level than that stimulated by nicotine) and therefore reduces nicotine craving, and second, the partial antagonism prevents nicotine binding so that nicotine no longer induces the same pleasure or reward stimulation.

Cytisinicline Opportunity

We are party to a license and supply agreement with Sopharma for the development and commercialization of cytisinicline outside of Sopharma’s territory, which consists of certain countries in Central and Eastern Europe, Scandinavia, North Africa, the Middle East and Central Asia, as well as Vietnam.

We are developing cytisinicline as a drug therapy in treating nicotine dependence for smoking cessation and nicotine e-cigarette cessation which would address the limitations of both prescription drugs and of Over-the-Counter, or OTC, products.

We believe that a substantial market exists in the United States, European Union, or EU, and the rest of the world for a new, safe and effective smoking cessation treatment. We believe cytisinicline is differentiated from existing smoking cessation treatments given its combination of efficacy, well-tolerated safety profile and dosing flexibility with a 6 or 12-week regimen, as demonstrated in clinical trials. Our goal is to obtain approval from the FDA and from other regulatory agencies for the sale and distribution of cytisinicline in the United States and subsequently to other countries outside of Sopharma’s territory.

OVERVIEW OF OUR REGULATORY PROGRESS AND CLINICAL PHASE 3 PROGRAM

Overview of Regulatory Progress

Smoking Cessation Indication

In June 2017, we filed an Investigational New Drug Application, or IND, with the FDA, for evaluation of cytisinicline as a treatment for smoking cessation. This IND included required non-clinical toxicology studies that were sponsored by the National Center for Complementary and Integrative Health, or NCCIH, a division of the National Institute of Health, or NIH, and by the National Cancer Institute, or NCI, to assist in our IND for investigating cytisinicline as a smoking cessation treatment.

In May 2018, we held an end of Phase 2 meeting with the FDA to review and receive guidance on our Phase 3 clinical program and overall development plans to support an NDA for the 25-day downward titration cytisinicline regimen. The FDA recommended to consider evaluating higher dosing, a more simplified daily regimen, and possible longer dosing in our development program. This FDA review also included our plans and their recommendations for non-clinical studies, standard drug-to-drug interaction and reproductive/teratogenicity studies. Detailed plans for chronic toxicology, carcinogenicity studies, and additional clinical studies regarding a maximum tolerated dose, renal impairment, QT interval prolongation, longer term exposure and adequate demonstration of safety and efficacy from planned randomized, placebo-controlled, Phase 3 clinical trials were also discussed.

In December 2018, we announced that the FDA agreed with our Initial Pediatric Study Plan, specifically, providing a full waiver for evaluating cytisinicline in a pediatric population. The reasons for the full waiver were based on the low numbers of children smoking under the age of 12 and the logistical difficulties of recruiting treatment-seeking smokers in the adolescent age group. The agreed upon Initial Pediatric Study Plan is expected to be included as part of our future application for marketing approval of cytisinicline.

In November 2019, we held a type C meeting with the FDA to review results from our Phase 2 ORCA-1 study and our revisions to the Phase 3 clinical program using a simplified 3 mg tablet administered three times a day, or TID, dosing schedule. The FDA agreed that the 3 mg TID dosing schedule was acceptable for our Phase 3 clinical program. In March 2019, we had also initiated our Phase 1 clinical study to assess for dose limiting adverse effects, or AEs, that would define the maximum tolerated dose, or MTD, for a single administered oral dose of cytisinicline. Because dose limiting AEs for the MTD could not be reached per protocol definitions in the study, the results were reviewed with the FDA at this November 2019 Type C meeting, with an agreement that further escalation beyond the single 30 mg dose was not required in the study.

Additional NCCIH and NCI sponsored non-clinical toxicology studies that evaluated reproductive toxicology and company sponsored non-clinical toxicology studies that evaluated longer cytisinicline exposure beyond one month to at least three months for support in initiating our Phase 3 clinical program were submitted in 2020. This allowed the initiation of our two Phase 3 clinical trials in the fourth quarter of 2020 and first quarter of 2022.

Additional plans for our Phase 1 studies regarding pharmacokinetics, or PK, assessments for subjects with renal impairment and evaluations for possible QT interval prolongation, which were first discussed with the FDA as part of the end of Phase 2 meeting in 2018, were followed by more detailed review and agreement with the FDA during 2022 and 2023. These studies have now been completed.

During 2022 and 2023, we had several Type C and Type D meetings with the FDA regarding the adequacy of our completed nonclinical studies, overall clinical pharmacology information, manufacturing product information, and our Integrated Safety Summary, or ISS, analysis plans for a future NDA submission.

In the fourth quarter of 2023, we initiated our pre-NDA discussions with the FDA regarding the adequacy of our efficacy and safety information for proceeding with an NDA submission. The FDA expressed support for an NDA submission based on adequate data to assess for efficacy from our two completed randomized and controlled Phase 3 trials. In addition, the FDA advised that long-term exposure data to assess for safety beyond 12 weeks would be needed to adequately assess safety risks given that the FDA views smoking cessation drugs as products for chronic, repeated, and intermittent use as patients may relapse and require subsequent courses of treatment over a lifetime. In the first quarter of 2024, we reached agreement with the FDA that a single, open-label study evaluating the long-term safety effects of cytisinicline would be sufficient to complete the requirement and enable an NDA submission. In June 2025, we submitted an NDA to the FDA for cytisinicline as a treatment for smoking cessation as the first indication in the United States.

In September 2025, we announced that the FDA accepted for review our ND, for cytisinicline as a treatment for smoking cessation as the first indication in the U.S. and assigned a PDUFA targeted action date of June 20, 2026. One third-party manufacturer named in our cytisinicline NDA recently underwent an, non-Achieve related, FDA cGMP inspection and FDA made two observations related to solid oral dose manufacturing, which are being addressed through an ongoing communication with FDA of the company’s remedial action plan. While unclear, there is potential for a delay in FDA approval beyond the PDUFA targeted action date of June 20, 2026. We have partnered with a U.S.-based manufacturer Adare to manufacture cytisinicline drug product for potential commercial launch and beyond and have commenced a technology transfer. We expect the partnership with Adare to provide supply chain redundancy and U.S.-based contingency capacity, help decrease risks related to international importation of pharmaceuticals and reduce costs, including potential tariffs. By establishing U.S. manufacturing with Adare, we expect to decrease our supply chain risk.

E-cigarette (vaping) Cessation Indication

In July 2021, we announced that we were awarded a grant from the National Institute on Drug Abuse, or NIDA, of the National Institutes of Health, or NIH, to evaluate the use of cytisinicline as a treatment for cessation of nicotine e-cigarette use. This initial grant award was utilized to complete critical regulatory activities for the submission of a second IND to the FDA for evaluation of cytisinicline as a treatment for nicotine e-cigarette cessation, or vaping cessation. In November 2021, we announced that the FDA had completed their review and accepted this IND to investigate cytisinicline in this population.

In July 2024, we received Breakthrough Therapy designation from the FDA for cytisinicline for nicotine e-cigarette, or vaping, cessation. Breakthrough Therapy designation is designed to expedite the development and review of drugs that are intended to treat serious conditions when preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over available therapies. It provides product sponsors the ability to receive an FDA cross-disciplinary project management team for interactive communications with senior managers and expert reviewers from FDA to expedite the development of a product.

In December 2024, we announced the completion of our end-of-Phase 2 meeting with the FDA to review and receive guidance on our proposed Phase 3 clinical program for a future supplemental NDA submission, or sNDA, to expand cytisinicline for vaping cessation treatment. We obtained FDA agreement on a proposed single Phase 3 study design, including the inclusion/exclusion criteria, primary and secondary efficacy objectives, definition of vaping abstinence with biochemical verification, and other overall study assessments, as well as additional requirements for submitting an sNDA. The FDA agreed that one well-controlled Phase 3 trial, in addition to our completed Phase 2 ORCA-V1 trial and the safety exposure data from our ORCA-OL trial, would be sufficient for a vaping cessation indication as an sNDA. We would target to enroll and complete study evaluations approximately 12 months after study initiation. We may explore additional indications for the treatment of nicotine dependence in the future.

In October 2025, the FDA awarded cytisinicline for nicotine e-cigarette, or vaping, cessation the CNPV as part of the pilot program. The CNPV is granted to products with significant potential to address a major national priority, such as meeting a large unmet medical need, reducing downstream health care utilization or addressing a public health crisis. CNPV recipients will receive a decision from the FDA within one to two months following filing of a complete application for a drug, as well as enhanced communication with review staff throughout the development process prior to their final submission and during the review period.

Non-Clinical Program

Non-clinical toxicology studies were sponsored by the NCCIH and by the NCI, to assist in our IND for investigating cytisinicline as a smoking cessation treatment. We filed this IND for cytisinicline with the FDA in 2017, which included the NCCIH sponsored non-clinical studies. Additional NCCIH and NCI sponsored non-clinical toxicology studies that evaluated reproductive toxicology were later submitted in support of our Phase 3 program.

In December 2017, we initiated a series of drug metabolism, drug-to-drug interaction, and transporter studies of cytisinicline and results from these studies were announced in June 2018. These studies demonstrated that cytisinicline has no clinically significant interaction with any of the hepatic enzymes commonly responsible for drug metabolism nor clinically significant interaction with drug transporters. This suggests that cytisinicline may be administered with other medications without the need to modify the dose of any co-administered medications.

In addition, company sponsored non-clinical toxicology studies that evaluated longer cytisinicline exposure beyond one month to at least three months were submitted in 2020 prior to initiating our Phase 3 studies.

Non-clinical toxicology studies that are required for an NDA, including two longer-term chronic toxicology studies and two carcinogenicity studies, have been completed and submitted to the FDA.

CLINICAL DEVELOPMENT PROGRAM

Company-Sponsored Completed Phase 1 Trials

Food Effect Phase 1 Trials

In August 2017, we initiated our IND with a Phase 1 clinical study evaluating the effect of food on the bioavailability of cytisinicline in normal healthy volunteers. We completed the food effect study and announced the results in November of 2017, demonstrating similar bioavailability of cytisinicline in fed and fasted subjects.

In 2018, Sopharma commercially launched a newly formulated cytisinicline tablet with improved shelf life in their territories. In May 2018, we initiated a study to evaluate the effect of food on the bioavailability of cytisinicline in volunteer smokers using this new formulation and data results were announced in September 2018. The study demonstrated similar bioavailability of cytisinicline in fed and fasted subjects. Cytisinicline was extensively absorbed after oral administration with maximum cytisinicline concentration levels observed in the blood within less than two hours with or without food. Total excretion levels of cytisinicline also remained equivalent in both the fed and fasted states.

In 2023, we evaluated our planned commercial 3 mg formulated cytisinicline tablet in a 2-part Phase 1 clinical study with the first part evaluating the effect of food on the bioavailability of the 3 mg tablet in volunteer smokers. The study demonstrated similar bioavailability of cytisinicline in fed and fasted subjects, and total excretion levels of cytisinicline also remained equivalent in both the fed and fasted states.

In all Phase 1 Food Effect studies, cytisinicline was well tolerated.

Other Phase 1 Safety Trials

In October 2017, we initiated a clinical study assessing the repeat-dose PK and pharmacodynamics, or PD, effects of 1.5 mg and 3 mg cytisinicline in 26 healthy volunteer smokers when administered over the 25-day downward titration regimen as marketed by Sopharma in their territories. Final results were presented at the Annual Meeting of the Society for Research on Nicotine and Tobacco, or SRNT, in February 2019. All 26 subjects completed the study. Predictable increases in plasma cytisinicline concentrations were observed with increasing unit dosing from 1.5 mg to 3 mg. Smokers in the study were not required to have a designated or predetermined quit date. Overall, subjects had an 80% reduction in cigarettes smoked, 82% reduction in expired CO, and 46% of the subjects achieved biochemically verified smoking abstinence by day 26. Subjects who received 3 mg cytisinicline over the 25 days had a trend for higher smoking abstinence compared to subjects who received 1.5 mg cytisinicline. The AEs observed were mostly mild with transient headaches as the most commonly reported event. No serious adverse effects, or SAEs, were observed in the study.

In March 2019, we initiated a clinical trial to evaluate the dose limiting AEs that would define the maximum tolerated dose, or MTD, for a single administered oral dose of cytisinicline. This study evaluated smokers who received one single dose of cytisinicline. The starting dosage of cytisinicline was 6 mg and was to be increased in separate groups of subjects for each escalated dose level until defined stopping criteria (based on the occurrence of dose-limiting AEs) were reached. A safety review after each dose level was performed by an independent Data Safety Monitor Committee, or DSMC, before escalating to the next dose level. Six dose levels were pre-planned with 21 mg cytisinicline as the highest dose level. When the MTD was not reached at 21 mg, the study was amended to evaluate doses up to 30 mg, as recommended by the DSMC. At this 30 mg dose, the stopping criteria of dose-limiting AEs were still not met, but the DSMC recommended stopping the study since the frequency of gastrointestinal symptoms were approaching an MTD level. The results were reviewed with the FDA, with an agreement that further escalation beyond the single 30 mg dose was not required. This Phase-1 study fulfills an FDA requirement to evaluate potential safety issues in the event patients exceed a recommended single dose outside of a clinical trial setting.

Three additional Phase 1 clinical studies were conducted in 2022 and 2023 for the NDA: one pharmacokinetics, or PK, study to evaluate for any increased cytisinicline blood levels in subjects who have various levels of renal impairment; another PK study to determine various remaining PK parameters for the 3 mg TID cytisinicline regimen, including the timing of steady state dosing; and a cardiac safety study to evaluate for any effects of cytisinicline on QT interval prolongation. All 3 studies have been completed.

The renal impairment study demonstrated that cytisinicline is excreted unchanged in urine, and the pharmacokinetics of cytisinicline are dependent on renal function. Cytisinicline was generally observed to be well tolerated in subjects with varying degrees of renal impairment compared to subjects with normal renal function.

The PK study demonstrated that the 3mg cytisinicline TID dosing regimen reached steady state cytisinicline pharmacokinetics by the second day of TID administration.

The cardiac safety QT/QTc study evaluating therapeutic and supratherapeutic high doses of cytisinicline demonstrated that cytisinicline has no clinically relevant effect on QT interval prolongation or cardiac repolarization.

Company-Sponsored Completed Phase 2 Trials

Phase 2b ORCA-1 Trial for Smoking Cessation

We conducted the Phase 2b ORCA-1 dose selection trial, which was initiated in October 2018, and evaluated 254 smokers in the United States. The trial evaluated both 1.5 mg and 3 mg doses of cytisinicline on the standard declining titration schedule as well as a more simplified TID dosing schedule, both over 25 days. The trial was randomized and blinded to compare the effectiveness of the cytisinicline doses and schedules to respective placebo groups. All subjects were treated for 25 days, provided behavioral support, and followed up for an additional four weeks to assess smoking abstinence.

The primary endpoint in the study was the reduction in daily smoking, a self-reported measure. Three of the four cytisinicline treatment arms demonstrated a statistically significant improvement, p<0.05, compared to placebo. The fourth arm trended to significance (p= 0.052). Across all treatment arms, over the 25-day treatment period, subjects on cytisinicline experienced a 74-80% median reduction in the number of cigarettes smoked, compared to a 62% reduction in the placebo arms.

The secondary endpoint of the trial was a 4-week continuous abstinence rate, which is the more relevant endpoint for regulatory approval. All cytisinicline treatment arms showed significant improvements in abstinence rates compared to the placebo arms. Notably, the 3 mg TID cytisinicline arm demonstrated a 50% abstinence rate at week 4, compared to 10% for placebo (p<0.0001) and a continuous abstinence rate, weeks 5 through 8, of 30% for cytisinicline compared to 8% for placebo (p= 0.005). Smokers in the 3 mg TID arm had an Odds Ratio, or OR, of 5.04 (95% CI: 1.42, 22.32) for continuous abstinence from week 5 to week 8, compared with placebo, meaning, smokers receiving 3 mg cytisinicline TID were five times more likely to stop smoking compared to smokers receiving placebo.

At week 4, all four cytisinicline arms also demonstrated statistically significant (p<0.05) reductions in expired carbon monoxide, or CO, a biochemical measure of smoking activity. Expired CO levels had declined by a median of 71-80% in the cytisinicline treatment arms, compared to only 38% in the placebo arms.

Cytisinicline was well-tolerated with no SAEs reported. The most commonly reported (>5%) adverse events, or AEs, across all cytisinicline treatment arms versus placebo arms were abnormal dreams, insomnia, upper respiratory tract infections, and nausea. In the 3 mg TID treatment arm versus placebo arms, the most common AEs were abnormal dreams, insomnia, and constipation (each 6% vs 2%), upper respiratory tract infections (6% vs 14%), and nausea (6% vs 10%), respectively. Compliance with study treatment was greater than 94% across all arms.

A summary of AEs reported in subjects in the ORCA-1 trial is included in the table below.

The outcome of the ORCA-1 trial was the selection of 3 mg TID for Phase 3 development. Overall, the 3 mg dose administered TID demonstrated the best overall safety and efficacy when compared to other doses and administrations studies in ORCA-1. The results from ORCA-1 study were published in the journal Nicotine and Tobacco Research in 2021.

Phase 2 ORCA-V1 Trial for E-cigarette (Vaping) Cessation

In June 2022, following NIDA/NIH review of completed regulatory and clinical operational milestones plus acceptance of the IND by the FDA, we announced that we were awarded the next grant funding from NIDA in the amount of approximately $2.5 million. The full grant award of $2.8 million covered approximately half of the total ORCA-V1 clinical study costs.

In June 2022, we announced the initiation of the Phase 2 ORCA-V1 clinical trial. In April 2023, we reported positive topline results showing a statistically significant vaping cessation benefit for cytisinicline-treated participants in the ORCA-V1 trial.

ORCA-V1 evaluated 160 adults who used e-cigarettes on a daily basis at five clinical trial locations in the United States. ORCA-V1 participants were randomized to receive 3 mg cytisinicline three times daily or placebo for 12 weeks in combination with standard cessation behavioral support.

The primary endpoint for ORCA-V1 was biochemically verified continuous abstinence from nicotine e-cigarette use, measured during the last 4 weeks of treatment. Subjects who received 12 weeks of cytisinicline treatment had 2.64 times higher odds, or likelihood, to have quit vaping during the last four weeks of treatment compared to subjects who received placebo (p=0.04). The vaping cessation rate during weeks 9 through 12 was 31.8% for cytisinicline compared to 15.1% for placebo. A benefit in favor of cytisinicline was consistently observed across the secondary endpoints. Additionally, a cessation benefit was observed for cytisinicline across clinical trial sites and participant demographics such as age, gender, race, or whether they had smoked cigarettes in the past.

Cytisinicline was well tolerated, and no SAEs were reported. Similar rates of AEs were observed between treatment arms (54.7% in the placebo arm vs. 50.9% in the cytisinicline arm). The most commonly reported (>5%) AEs in the placebo arm, in order of frequency, were nausea, COVID-19 infection, headache, anxiety, and upper respiratory tract infection. In the cytisinicline arm, >5% AEs reported, in order of frequency, were sleep disturbances, anxiety, headache, fatigue, and upper respiratory tract infection.

ORCA-V1 trial results were presented at the Society for Research on Nicotine and Tobacco, or SRNT, European Annual Meeting in September 2023, the SRNT U.S. Annual Meeting in March 2024, the Society of General Internal Medicine U.S. Annual Meeting in May 2024 and final study results were published in the Journal of the American Medical Association, or JAMA, Internal Medicine in May 2024.

Company-Sponsored Phase 3 Clinical Trials for Smoking Cessation Indication

Completed Phase 3 ORCA-2 Trial

In April 2022, we announced positive topline results for the Phase 3 ORCA-2 clinical trial. ORCA-2 was initiated in October 2020 and evaluated the efficacy and safety of 3 mg cytisinicline dosed three times daily compared to placebo in 810 adult smokers at 17 clinical sites in the United States. ORCA-2 participants were randomized to one of three study arms to determine the smoking cessation efficacy and safety profile of cytisinicline when administered for either 6 or 12 weeks, compared to placebo. All subjects received standard behavioral support and were assigned to one of the following groups:

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Arm A: 12 weeks of placebo

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Arm B: 6 weeks of cytisinicline, followed by 6 weeks of placebo

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Arm C: 12 weeks of cytisinicline

The ORCA-2 study had two independent primary endpoints that evaluated successful smoking cessation for both 6-week and 12-week durations of cytisinicline treatment, compared to placebo. The primary endpoints for ORCA-2 were biochemically verified continuous smoking cessation measured during the last 4 weeks of each treatment duration. Both the 6- and 12-week cytisinicline treatments demonstrated significantly better quit rates than placebo with Odds Ratios, or ORs, of 8.0 and 6.3, respectively.

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Subjects who received 12 weeks of cytisinicline treatment had 6.3 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p<0.0001). The abstinence rate during weeks 9-12 was 32.6% for cytisinicline compared to 7.0% for placebo.

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Subjects who received 6 weeks of cytisinicline treatment had 8.0 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p<0.0001). The abstinence rate during weeks 3-6 was 25.3% for cytisinicline compared to 4.4% for placebo.

The secondary endpoints measured continuous smoking abstinence after treatment out to 24 weeks. Both the 6- and 12-week secondary endpoints for continuous abstinence demonstrated significantly better quit rates for cytisinicline treated subjects than placebo. The continuous abstinence rate from week 9 to 24 was 21.1% for the 12-week cytisinicline arm compared to 4.8% for placebo, with an OR of 5.3 (p<0.0001). The continuous abstinence rate from week 3 to 24 was 8.9% for the 6-week cytisinicline arm compared to 2.6% for placebo, with an OR of 3.7 (p=0.0016).

A third secondary endpoint compared the two cytisinicline treatment arms and evaluated for an increased risk in relapse from week 6 to week 24 when subjects were switched to placebo during week 6 to week 12 (Arm B) instead of receiving cytisinicline for another 6 weeks during week 6 to week 12 (Arm C). The analysis showed that there was no increased risk of smoking relapse in subjects who had successfully quit smoking by week 3 through week 6 if they received placebo instead of continuing cytisinicline from week 6 to week 12.

ORCA-2 subjects had an average age of 52.5 years, smoked a median of 20 cigarettes per day at baseline, and had a median smoking history of 38 years with 4 prior quit attempts.

Cytisinicline was well tolerated with no treatment-related SAEs reported. The most commonly reported AEs (occurring greater than 5% overall in the study) for placebo, 6-week cytisinicline, and 12-week cytisinicline are shown in the following table:

Completed Phase 3 ORCA-3 Trial

In May 2023, we announced positive topline results for our second Phase clinical trial, ORCA-3. ORCA-3 was initiated in January 2022 and was a confirmatory Phase 3 trial required for registrational approval of cytisinicline in the United States and had the same design as the Phase 3 ORCA-2 trial. The results of the Phase 3 ORCA-3 trial in 792 adult smokers at 20 clinical sites were:

Primary endpoint:

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Subjects who received 12 weeks of cytisinicline treatment had 4.4 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p<0.0001). The smoking cessation rate during weeks 9 through 12 was 30.3% for cytisinicline compared to 9.4% for placebo.

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Subjects who received 6 weeks of cytisinicline treatment had 2.85 times higher odds, or likelihood, to have quit smoking during the last 4 weeks of treatment compared to subjects who received placebo (p=0.0008). The smoking cessation rate during weeks 3 through 6 was 14.8% for cytisinicline compared to 6% for placebo.

Secondary endpoint:

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The continuous smoking cessation rate from week 9 to week 24 was 20.5% for the 12-week cytisinicline arm compared to 4.2% for placebo, with an odds ratio of 5.79 (p<0.0001).

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The continuous smoking cessation rate from week 3 to week 24 was 6.8% for the 6-week cytisinicline arm compared to 1.1% for placebo, with an odds ratio of 6.25 (p=0.0006).

The third secondary endpoint compared the two cytisinicline treatment arms for an increased risk in relapse from week 6 to week 24 when subjects were switched to placebo during week 6 to week 12 (Arm B) instead of receiving cytisinicline for another 6 weeks during week 6 to week 12 (Arm C). The analysis showed that there was no increased risk of smoking relapse in subjects who had successfully quit smoking by week 3 through week 6 and switched to placebo.

ORCA-3 subjects had an average age of 53 years, smoked a median of 20 cigarettes per day at baseline, and had a median smoking history of 36 years with 4 prior quit attempts.

Similar to ORCA-2 findings, cytisinicline was well-tolerated with no treatment-related SAEs reported. The most commonly reported (>5% overall) AEs for placebo, 6-week cytisinicline, and 12-week cytisinicline are shown in the following table:

Company-Sponsored Open Label Clinical Trial for long-term safety effects

Completed Open Label ORCA-OL Trial

The ORCA-OL open-label exposure trial was initiated in May 2024 and was completed in September 2025. The clinical trial enrolled 479 subjects at 29 clinical trial sites across the United States. ORCA-OL was designed to evaluate the long-term safety exposure of 3 mg cytisinicline treatment dosed three times daily in U.S. adults who want to quit smoking or vaping. Subjects received cytisinicline treatment and were monitored for safety events for up to one year. The primary endpoint was frequency of SAEs. Other safety and efficacy outcomes were also collected.

Based on an agreement with the FDA to follow ICH E1 guidance for longer-term safety exposure for pharmaceuticals, the FDA required that we collect six months and one year of cumulative exposure data from a minimum of 300 and 100 subjects, respectively, to submit our cytisinicline NDA and to meet the FDA requirement to provide safety data. We met these goals in January 2025 and April 2025, respectively.

The cumulative one-year exposure data were submitted to the FDA in October of 2025 as part of the 120-day safety update.

OVERVIEW OF SMOKING CESSATION MARKET AND TREATMENT OPTIONS

Overview of the Tobacco Epidemic

Smoking remains the leading cause of preventable death worldwide and in the United States. In 2024, the World Health Organization, or WHO, estimated that there are approximately 1.2 billion tobacco users globally and that tobacco kills more than 8 million people each year. More than 7 million of those deaths are the result of direct tobacco use, and it is estimated that over 1 million are the result of non-smokers being exposed to second-hand smoke. In the United States alone, cigarette smoking is responsible for more than 480,000 deaths every year, or about one in five deaths

The Centers for Disease Control and Prevention, or CDC, estimates that the annual cost of smoking related illnesses in the United States is more than $600 billion in direct medical care and lost productivity. Over 16 million people in the United States are living with a disease caused by smoking. Among these diseases are cancer, heart disease, stroke, lung diseases, diabetes and chronic obstructive pulmonary disease which includes emphysema and chronic bronchitis. Smoking also increases risk for tuberculosis, certain eye diseases and problems of the immune system, including rheumatoid arthritis. More than 87% of lung cancer deaths, 61% of all pulmonary disease deaths, and 32% of all deaths from coronary heart disease are attributable to smoking and exposure to secondhand smoke according to the CDC. Tobacco smoking is highly addictive, and research suggests that nicotine may be as addictive as heroin, cocaine and alcohol. The CDC estimates that more people in the United States are addicted to nicotine than any other drug and reports that, historically, nearly 70% of smokers desired to quit and 55% made an attempt to do so in the prior year. Despite the high number of attempts, fewer than one in ten people are successful in their attempt to quit each year. Additionally, up to 60% of people who quit smoking relapse in the first year.

One increasingly popular alternative to smoking is the use of e-cigarettes, or vaping, which deliver liquid nicotine into a mist or vapor which is inhaled. This method of consumption avoids the chemicals that are associated with cigarette smoke but may have other associated health and safety issues. The emerging use of e-cigarettes is contributing to the growing population of people who are addicted to nicotine.

According to data from the National Health Interview Survey, published by the CDC in May 2025, it is estimated that 17 million adults in the United States used e-cigarettes in 2023.

A study that we conducted and that was presented at the 2021 SRNT Annual Meeting, showed results from surveying approximately 500 users of nicotine vaping devices or e-cigarettes with approximately 73% of participants responding that they intend to quit vaping within the next three to 12 months. Of those who intended to quit even sooner, within the next 3 months, more than half stated they would be extremely likely to try a new prescription product to help them do so. Further, survey data published in JAMA Network Open in 2021, found that 61% of adult vape users overall endorsed future plans to quit. Intentions to quit were highest, reported at 66%, in those survey participants who were former cigarette smokers and currently using vape devices.

We believe that cytisinicline, if approved, could be the first prescription drug indicated for vape and e-cigarette users who are ready to quit their nicotine dependence.

Overview of Smoking Cessation Marketplace & Treatments

According to DelveInsight’s 2020 report “Smoking Cessation Market Insights, Epidemiology and Market Forecast”, global revenues for prescription smoking cessation therapies are estimated to reach $5.6 billion by 2030. In 2025, approximately 10.5 million prescriptions were written for smoking cessation treatments in the United States alone.

Only two non-nicotine, prescription treatments for smoking cessation are currently available in the United States: “varenicline” (formerly marketed by Pfizer as Chantix) and “bupropion” (formerly marketed by GlaxoSmithKline as Zyban). Both are currently available as generic formulations. Varenicline requires a minimum three-month treatment period and bupropion is recommended for a period between seven and 12 weeks. While both have been proven effective in aiding smoking cessation, they are also associated with significant side effects and early discontinuations from treatment. Varenicline’s labeling indicates elevated instances of nausea, abnormal dreams, constipation, flatulence, and vomiting may be experienced by varenicline-treated patients compared to placebo-treated patients, and buproprion’s product label discloses potential adverse reactions including insomnia, rhinitis, dry mouth, dizziness, nervous disturbance, anxiety, nausea, constipation, arthralgia and seizures. High uptake into the brain combined with activity at “off target” receptors could be responsible for varenicline’s adverse event profile.

In June 2021, Pfizer Inc. halted the distribution of Chantix (varenicline) after heightened levels of a N-nitrosamine impurity, called N-nitroso-varenicline, which were above the FDA’s acceptable daily intake limit, were found in some lots of Chantix tablets. Long-term use of products with N-nitroso-varenicline may be associated with a potential increased cancer risk in humans. In September 2021, Pfizer announced a nationwide recall in the United States of all lots of Chantix and withdrew the product in other countries around the globe. Prior to market withdrawal and launch of generic Chantix (varenicline), global sales of branded Chantix peaked at $1.1 billion. Of those sales, approximately 75% were attributable to the U.S. market. In February 2026, Pfizer announced that Chantix was re-launched as a cash pay product in the United States under the TrumpRx program.

The vast majority of OTC smoking cessation aids are Nicotine Replacement Therapies, or NRTs. NRTs come in many forms, including gums, lozenges and patches, and have been shown to be less effective than prescription drugs. For example, a Cochrane Group independent database review of nicotine receptor partial agonists published in 2016 compared varenicline with a number of NRTs and varenicline has been proven to be more effective than the NRTs, as demonstrated in head-to-head studies.

We believe that cytisinicline represents a unique opportunity to significantly impact global health by addressing the considerable unmet need among millions of smokers and e-cigarettes users. If approved by the FDA, it stands to become the first new prescription medicine in two decades aimed at aiding individuals in overcoming nicotine dependence. Cytisinicline is positioned to offer a novel solution from existing smoking cessation treatments given its combination of efficacy, well-tolerated safety profile and dosing flexibility with a 6 or 12-week regimen, as demonstrated in clinical trials.

LICENSE & SUPPLY AGREEMENTS

Sopharma

In 2009 and 2010, we entered into a license agreement, or the Sopharma License Agreement, and a supply agreement, or the Sopharma Supply Agreement, with Sopharma. Pursuant to the Sopharma License Agreement, we were granted access to all available manufacturing, efficacy and safety data related to cytisinicline. Additional rights granted under the Sopharma License Agreement include the exclusive use of, and the right to sublicense, certain Sopharma patent rights and the trademark Tabex in all territories—other than certain countries in Central and Eastern Europe, Scandinavia, North Africa, the Middle East and Central Asia, as well as Vietnam, where Sopharma or its affiliates and agents already market Tabex—in connection with the marketing, distribution and sale of our products. Under the Sopharma License Agreement, we agreed to pay a nonrefundable license fee. In addition, we agreed to make certain royalty payments equal to a mid-teens percentage of all net sales of Tabex branded products in our territory during the term of the Sopharma License Agreement, including those sold by a third party pursuant to any sublicense which may be granted by us. We have agreed to coordinate with Sopharma in the defense against any actual or threatened infringement claims with respect to Tabex branded products. The Sopharma License Agreement will also terminate under customary termination provisions including bankruptcy or insolvency and material breach. To date, any amounts paid to Sopharma pursuant to the Sopharma License Agreement have been immaterial.

On May 14, 2015, we and Sopharma entered into an amendment to the Sopharma License Agreement. Among other things, the amendment to the Sopharma License Agreement reduced the royalty payments payable by us to Sopharma from a percentage in the mid-teens to a percentage in the mid-single digits, extended the term of the Sopharma License Agreement until May 26, 2029, and removed Sopharma’s right to terminate the Sopharma License Agreement upon termination or expiration of the Sopharma Supply Agreement.

On July 28, 2017, we and Sopharma entered into the amended and restated Sopharma Supply Agreement. Pursuant to the amended and restated Sopharma Supply Agreement, for territories as detailed in the licensing agreement, we will purchase cytisinicline from Sopharma, and Sopharma agrees to supply all such cytisinicline requested by us, and we extended the term to 2037. In addition, Sopharma will manufacture sufficient cytisinicline to meet a forecast for a specified demand of cytisinicline, with the forecast to be updated regularly thereafter. Sopharma has an obligation to obtain and maintain any regulatory and government permits, licenses and approvals that are necessary for Sopharma to manufacture the products to us. Each of us and Sopharma may terminate the Sopharma Supply Agreement in the event of the other party’s material breach or bankruptcy or insolvency.

We communicated to Sopharma that we had concerns regarding their ability to pass an FDA pre-approval inspection and that if those concerns were not resolved, we planned to engage third-party manufacturers, and include such manufacturers in our NDA, until such time that Sopharma is able to pass an FDA inspection. In June 2025, we submitted our NDA, which included third-party manufacturers. Sopharma has alleged that our engagement of third-party manufacturers is a breach of our agreement, which we have disputed and have proposed steps to resolve.

On May 14, 2015, we entered into a Share Purchase Agreement with Sopharma to acquire 75% of the outstanding shares of Extab Corporation for $2.0 million in cash and $2.0 million in a deferred payment, contingent on regulatory approval of cytisinicline by the FDA or the European Medicines Agency. The contingent consideration liability is measured at fair value in our financial statements (see Note 2 "Significant Accounting Policies, Sopharma Share Purchase Agreement Contingent Consideration" in the accompanying consolidated financial statements).

University of Bristol

In July 2016, we entered into a license agreement with the University of Bristol, or the University of Bristol License Agreement. Under the University of Bristol License Agreement, we received exclusive and nonexclusive licenses from the University of Bristol to certain patent and technology rights resulting from research activities into cytisinicline and its derivatives for use in smoking cessation, including a number of patent applications related to novel approaches to cytisinicline binding at the nicotinic receptor level. Any patents issued in connection with these applications would be scheduled to expire on February 5, 2036, at the earliest.

In consideration of rights granted by the University of Bristol, we agreed to pay amounts of up to $3.2 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the University of Bristol License Agreement. Additionally, if we successfully commercialize product candidates subject to the University of Bristol License Agreement, we are responsible for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products.

On January 22, 2018, we and the University of Bristol entered into an amendment to the University of Bristol License Agreement. Pursuant to the amended University of Bristol License Agreement, we received exclusive rights for all human medicinal uses of cytisinicline across all therapeutic categories from the University of Bristol from research activities into cytisinicline and its derivatives. In consideration of rights granted by the amended University of Bristol License Agreement, we agreed to pay an initial amount of $37,500 upon the execution of the amended University of Bristol License Agreement, and additional amounts of up to $1.7 million, in the aggregate, tied to a financing milestone and to specific clinical development and commercialization milestones resulting from activities covered by the amended University of Bristol License Agreement, in addition to amounts under the original University of Bristol License Agreement of up to $3.2 million in the aggregate, tied to specific financing, development and commercialization milestones. Additionally, if we successfully commercialize any product candidate subject to the amended University of Bristol License Agreement or to the original University of Bristol License Agreement, we will be responsible, as provided in the original University of Bristol License Agreement, for royalty payments in the low-single digits and payments up to a percentage in the mid-teens of any sublicense income, subject to specified exceptions, based upon net sales of such licensed products. Through December 31, 2025, we have paid the University of Bristol $125,000 pursuant to the University of Bristol License Agreement.

Unless otherwise terminated, the University of Bristol License Agreement will continue until the earlier of July 2036 or the expiration of the last patent claim subject to the University of Bristol License Agreement. We may terminate the University of Bristol License Agreement for convenience upon a specified number of days’ prior notice to the University of Bristol. The University of Bristol License Agreement will terminate under customary termination provisions including bankruptcy or insolvency or its material breach of the agreement.

Summary of Milestone and Contingent Obligations by Product Candidate

The following table sets forth the milestones and contingent obligations that we may be required to pay to third parties under the license and share purchase agreements described above. As described above, we will also be required to pay certain revenue-based royalties with respect to our product candidate.

(1)

Payable in connection with specific financing, development and commercialization milestones.

(2)

Payable contingent on regulatory approval of cytisinicline by the FDA or the European Medicines Agency, or EMA.

GOVERNMENT REGULATIONS

We are heavily regulated in most of the countries in which we operate. In the United States, the principal regulating authority is the FDA. The FDA regulates the safety and efficacy of product candidates and research, quality, manufacturing processes, product approval and promotion, advertising and product labeling. In the EU, the EMA and national regulatory agencies regulate the scientific evaluation, supervision and safety monitoring of product candidates, and oversee the procedures for approval of drugs for the EU and European Economic Area, or EEA, countries similar regulations exist in most other countries, and in many countries the government also regulates prices. Health authorities in many middle- and lower-income countries require marketing approval by a recognized regulatory authority, such as the FDA or EMA, before they begin to conduct their application review process and/or issue their final approval.

United States

It is anticipated that cytisinicline tablets could receive up to seven and a half years of data exclusivity under the Drug Price Competition and Patent Term Restoration Act, also known as the Hatch-Waxman Act.

Before a new pharmaceutical product may be marketed in the United States, the FDA must approve an NDA for a new drug. The steps required before the FDA will approve an NDA generally include non-clinical studies followed by multiple stages of clinical trials conducted by the trial sponsor; sponsor submission of the NDA to the FDA for review; the FDA’s review of the data to assess the drug’s safety and effectiveness; and the FDA’s inspection of the facilities where the product will be manufactured. We filed our NDA for cytisinicline in June 2025 and have a PDUFA targeted action date of June 20, 2026. One third-party manufacturer named in our cytisinicline NDA recently underwent an, non-Achieve related, FDA cGMP inspection and FDA made two observations related to solid oral dose manufacturing, which are being addressed through an ongoing communication with FDA of the company’s remedial action plan. While unclear, there is potential for a delay in FDA approval beyond the PDUFA targeted action date of June 20, 2026. We have partnered with a U.S.-based manufacturer Adare to manufacture cytisinicline drug product for potential commercial launch and beyond and have commenced a technology transfer. We expect the partnership with Adare to provide supply chain redundancy and U.S.-based contingency capacity, help decrease risks related to international importation of pharmaceuticals and reduce costs, including potential tariffs. By establishing U.S. manufacturing with Adare, we expect to decrease our supply chain risk.

As a condition of product approval, the FDA may require a sponsor to conduct post-marketing clinical trials, known as Phase 4 trials, and surveillance programs to monitor the effect of the approved product. The FDA may limit further marketing of a product based on the results of these post-market trials and programs. Any modifications to a drug, including new indications or changes to labeling or manufacturing processes or facilities, may require the submission and approval of a new or supplemental NDA before the modification can be implemented, which may require that we generate additional data or conduct additional non-clinical studies and clinical trials. Our ongoing manufacture and distribution of drugs is subject to continuing regulation by the FDA, including recordkeeping requirements, reporting of adverse experiences associated with the product, and adherence to cGMPs which regulate all aspects of the manufacturing process. We are also subject to numerous regulatory requirements relating to the advertising and promotion of drugs, including, but not limited to, standards and regulations for direct-to-consumer advertising. Failure to comply with the applicable regulatory requirements governing the manufacture and marketing of our products may subject us to administrative or judicial sanctions, including warning letters, product recalls or seizures, injunctions, fines, civil penalties and/or criminal prosecution.

Sales and Marketing. The marketing practices of U.S. pharmaceutical companies are generally subject to various federal and state healthcare laws that are intended to prevent fraud and abuse in the healthcare industry and protect the integrity of government healthcare programs. These laws include anti-kickback laws and false claims laws. Anti-kickback laws generally prohibit a biopharmaceutical or medical device company from soliciting, offering, receiving or paying any remuneration to generate business, including the purchase or prescription of a particular product. False claims laws generally prohibit anyone from knowingly and willingly presenting, or causing to be presented, any claims for payment for reimbursed drugs or services to third-party payors (including Medicare and Medicaid) that are false or fraudulent. Although the specific provisions of these laws vary, their scope is generally broad and there may not be regulations, guidance or court decisions that apply the laws to any particular industry practices, including the marketing practices of pharmaceutical and medical device companies. Violations of fraud and abuse laws may be punishable by criminal or civil sanctions and/or exclusion from federal healthcare programs (including Medicare and Medicaid). The U.S. federal government and various states have also enacted laws to regulate the sales and marketing practices of pharmaceutical or medical device companies. These laws and regulations generally limit financial interactions between manufacturers and healthcare providers; require disclosure to the federal or state government and public of such interactions; and/or require the adoption of compliance standards or programs. Many of these laws and regulations contain ambiguous requirements or require administrative guidance for implementation. Given the lack of clarity in laws and their implementation, our activities could be subject to penalties under the pertinent laws and regulations.

Healthcare Reform. The United States and state governments continue to propose and pass legislation designed to regulate the healthcare industry. In March 2020, the Patient Protection and Affordable Care Act, or ACA, as amended by the Healthcare and Education Reconciliation Act, or collectively, the Healthcare Reform Law, was passed and included changes that significantly affected the pharmaceutical industry, such as:

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Increasing drug rebates paid to state Medicaid programs under the Medicaid Drug Rebate Program for brand name and generic prescription drugs and extending those rebates to Medicaid managed care;

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Requiring pharmaceutical manufacturers to provide discounts on brand name prescription drugs sold to Medicare beneficiaries whose prescription drug costs cause the beneficiaries to be subject to the Medicare Part D coverage gap; and

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Imposing an annual fee on manufacturers and importers of brand name prescription drugs reimbursed under certain government programs, including Medicare and Medicaid.

The ACA includes provisions designed to increase the number of Americans covered by health insurance. Specifically, since 2014, the ACA has required most individuals to maintain health insurance coverage or potentially to pay a penalty for noncompliance and has offered states the option of expanding Medicaid coverage to additional individuals. Additionally, policy efforts designed specifically to reduce patient out-of-pocket costs for medicines could result in new mandatory rebates and discounts or other pricing restrictions. Adoption of other new legislation at the federal or state level could further affect demand for, or pricing of, our products.

Pricing and Reimbursement. Pricing for our pharmaceutical products will depend in part on government regulation. We will likely be required to offer discounted pricing or rebates on purchases of pharmaceutical products under various federal and state healthcare programs, such as the Medicaid Drug Rebate Program, the “federal ceiling price” drug pricing program, the 340B drug pricing program and the Medicare Part D Program. We will also be required to report specific prices to government agencies under healthcare programs, such as the Medicaid Drug Rebate Program and Medicare Part B. The calculations necessary to determine the prices reported are complex and the failure to report prices accurately may expose us to penalties.

In the United States, Medicaid currently covers all smoking cessation products including varenicline and bupropion. The ACA substantially changes the way healthcare is financed by both governmental and private insurers, and significantly impacts the U.S. pharmaceutical industry. Section 2502 of the ACA specifies that tobacco cessation medications will be removed from the list of optional medications and required for inclusion in states’ prescription drug benefit. On May 2, 2014 the Department of Health and Human Services, or HHS, provided guidance into insurance coverage policy that health plans would be in compliance if they cover, among other items, screening for tobacco use, individual, group and phone counseling, all FDA approved tobacco cessation medications (both prescription and OTC) when prescribed by a healthcare provider, at least two quit attempts per year, four sessions of counseling and 90 days of treatment, with no cost sharing (co-pay) required.

Government and private third-party payers routinely seek to manage utilization and control the costs of our products. For example, private third-party payers and the majority of states use preferred drug lists to restrict access to certain pharmaceutical products under both of these types of payer types. Private third-party payers are constantly under healthcare budgetary constraints and utilize Pharmacy Benefit Managers to extract unit cost savings from drug manufacturers for formulary coverage. Given certain states’ current and potential ongoing fiscal crises, a growing number of states are considering a variety of cost-control strategies, including capitated managed care plans that typically contain cost by restricting access to certain treatments.

There have also been multiple recent U.S. congressional inquiries and proposed and adopted federal and state legislation designed to, among other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drugs and biologics. In addition, Congress and multiple presidential administrations have indicated that they will continue to seek new legislative and/or administrative measures to control drug costs. These initiatives recently culminated in the enactment of the Inflation Reduction Act, or the IRA, in August 2022, which will, among other things, allows HHS to negotiate the selling price of certain drugs and biologics that CMS reimburses under Medicare Part B and Part D, although only high-expenditure single-source drugs that have been approved for at least seven years (11 years for biologics) can be selected by CMS for negotiation, with the negotiated price taking effect two years after the selection year. The negotiated prices, which will first become effective in 2026, will be capped at a statutory ceiling price beginning in October 2023 and penalize drug manufacturers that increase prices of Medicare Part B and Part D drugs at a rate greater than the rate of inflation. The IRA permits the Secretary of HHS to implement many of these provisions through guidance, as opposed to regulation, for the initial years. Manufacturers that fail to comply with the IRA may be subject to various penalties, including civil monetary penalties. The IRA also extends enhanced subsidies for individuals purchasing health insurance coverage in ACA marketplaces through plan year 2025. These provisions will take effect progressively starting in 2023, although they may be subject to legal challenges. We anticipate that additional state and federal healthcare measures could be adopted in the future, any of which could limit the amounts that federal and state governments will pay for healthcare products and services, which could result in reduced demand or lower pricing for cytisinicline, or additional pricing pressures.

Anti-Corruption. The Foreign Corrupt Practices Act of 1977, as amended, or FCPA, prohibits U.S. corporations and their representatives from offering, promising, authorizing or making payments to any foreign government official, government staff member, political party or political candidate in an attempt to obtain or retain business abroad. The scope of the FCPA includes interactions with certain healthcare professionals in many countries. Other countries have enacted similar anti-corruption laws and/or regulations. Individual states, acting through their attorneys general, have sought to regulate the marketing of prescription drugs under state consumer protection and false advertising laws.

Outside the United States

We expect to encounter similar regulatory and legislative issues in most other countries in which we seek to develop and commercialize cytisinicline.

New Drug Approvals and Pharmacovigilance. In the EU, the approval of new drugs may be achieved using the Mutual Recognition Procedure, the Decentralized Procedure or the EU Centralized Procedure. These procedures apply in the EU member states, plus the EEA countries, Norway, Iceland and Liechtenstein. The use of these procedures generally provides a more rapid and consistent approval process across the EU and EEA than was the case when the approval processes were operating independently within each country.

In 2012, new pharmacovigilance legislation came into force in the EU. Key changes included the establishment of a new Pharmacovigilance Risk Assessment Committee within the EMA, with responsibility for reviewing and making recommendations on product safety issues for the EU authorities. It also introduced the possibility for regulators to require pharmaceutical companies to conduct post-authorization efficacy studies at the time of approval, or at any time afterwards in light of scientific developments. There are also additional requirements regarding adverse drug reaction reporting and additional monitoring of products. Outside developed markets such as the EU and Japan, pharmacovigilance requirements vary and are typically less extensive.

Health authorities in many middle- and lower-income countries require marketing approval by a recognized regulatory authority (i.e., similar to the authority of the FDA or the EMA) before they begin to conduct their application review process and/or issue their final approval. Many authorities also require local clinical data in the country’s population in order to receive final marketing approval. These requirements delay marketing authorization in those countries relative to the United States and Europe.

CONTRACT RESEARCH AGREEMENTS

Our strategy is to outsource certain product development activities and have established contract research agreements for, non-clinical, clinical, manufacturing and some data management services. We choose which business or institution to use for these services based on their expertise, capacity and reputation and the cost of the service.

We also provide or have provided quantities of our product candidates to academic research institutions to investigate the mechanism of action. These collaborations expand our research activities for our product candidates with modest contributions from us.

MANUFACTURING

We do not own or operate manufacturing facilities for the production of cytisinicline, though we may develop our own manufacturing operations in the future. We currently partner with Sopharma as supplier and contract manufacturer for our required raw materials, active pharmaceutical ingredients and finished drug product for our clinical trials. In addition to our Sopharma relationship, we utilize third-party contract manufacturing organizations, or CMOs, for the manufacturing and clinical packaging supplies of cytisinicline and have contracted with additional CMOs for commercial drug supply. We currently employ internal resources and third-party consultants to manage our clinical manufacturing activities.

Sopharma sources cytisinicline from natural sources including trees and shrubs from the Faboideae subfamily of plant species. Cytisinicline-containing plants are harvested annually, dried and processed into cytisinicline. The seeds of these plants in their natural state are highly toxic and the extraction process removes the toxins to produce highly purified cytisinicline. The CMOs source cytisinicline starting material from certain third-party suppliers. We expect to continue stockpiling cytisinicline to meet the projected demand upon commercial launch.

The active pharmaceutical ingredient, or API, manufacturing process utilizes a series of techniques including solvent extraction, recrystallization, filtration, and purification. Critical controls have been identified and are controlled by internally developed specifications and methods to ensure a consistent and reproducible process. The highly purified cytisinicline is dried, sieved and packed for storage until further processing into drug product. The cytisinicline API manufacturing process has been developed and refined over many years of manufacture by Sopharma, which has significant expertise in manufacturing cytisinicline.

Raw materials are essential to our business and are normally available in quantities adequate to meet the needs of our business. Where there are exceptions, the temporary unavailability of those raw materials has not historically had a material adverse effect on our financial results however, uncertainties in supply chain, transportation logistics and costs, and political and economic conditions could result in disruptions in our operations and materially impact our financial results.

SALES AND MARKETING

Our commercial strategy may include the use of strategic partners, distributors, a contract sale force or the establishment of our own commercial marketing and sales infrastructure. We plan to further evaluate these alternatives including the potential to market and distribute directly to consumers via traditional and virtual channels. We intend to seek commercial partnerships in ex-U.S. territories.

INTELLECTUAL PROPERTY

The U.S. Supreme Court has held that certain claims to naturally occurring substances are not patentable. Cytisinicline is a naturally occurring product and, therefore, the compound itself is not patentable in the United States. Furthermore, cytisinicline has been used in other parts of the world for decades, creating further challenges to patenting uses of the compound.

Our development and commercialization of cytisinicline is protected by our exclusive supply agreement with Sopharma and Sopharma’s proprietary technology, experience and expertise in cytisinicline extraction. In addition, we intend to utilize market exclusivity laws including those under the Hatch-Waxman Act in the United States and exclusivity under Directive 2004/27/EC in the EU.

Additionally, we are actively building an intellectual property portfolio around our clinical-stage product candidate and research programs. A key component of this portfolio strategy is to seek international patent protection with patent applications in the United States and in major market countries that we consider important to the development of our business. As of December 31, 2025, we control a portfolio of patent families that are owned, co-owned and in-licensed. Those families cover cytisinicline dosing methods, cytisinicline derivatives, cytisinicline salts, methods of cytisinicline extraction, and cytisinicline formulations, among other inventions, in the United States and foreign jurisdictions. As of December 31, 2025, we owned, co-owned or in-licensed over 20 issued patents and over 50 pending patent applications. These patents and applications, if granted, have expiration dates ranging from 2037 to 2042, absent any term adjustments or extensions.

Our success depends in part on our ability to obtain and maintain proprietary protection for our product candidates and other discoveries, inventions, trade secrets and know-how that are critical to our business operations. Our success also depends in part on our ability to operate without infringing the proprietary rights of others, and in part, on our ability to prevent others from infringing our proprietary rights. A comprehensive discussion on risks relating to intellectual property is provided under “Risk Factors—Risks Related to Our Intellectual Property.”

In addition to patent protection, we rely on trade secrets, trademark protection and know-how to expand our proprietary position around our chemistry, technology and other discoveries and inventions that we consider important to our business. We also seek to protect our intellectual property in part by entering into confidentiality agreements with our employees, consultants, scientific advisors, clinical investigators and other contractors and also by requiring our employees, commercial contractors and certain consultants and investigators, to enter into invention assignment agreements that grant us ownership of any discoveries or inventions made by them.

COMPETITION

The development and commercialization of new products is highly competitive. We face competition from major pharmaceutical companies, specialty pharmaceutical companies, biotechnology companies, universities and other research institutions worldwide with respect to smoking cessation and other product candidates that they may seek to develop or commercialize in the future. We are aware that many companies have therapeutics marketed or in development for smoking cessation. We expect that our competitors and potential competitors have historically dedicated, and will continue to dedicate, significant resources to aggressively develop and commercialize their products in order to take advantage of the significant market opportunity.

Prescription and Over-the-Counter Treatments

Only two non-nicotine, prescription treatments for smoking cessation are currently available in the United States; “varenicline” (marketed by Pfizer as Chantix) and “bupropion” (formerly marketed by GlaxoSmithKline as Zyban). Both are currently available as generic formulations. Varenicline requires a three-month treatment period and bupropion is recommended for a period between seven and 12 weeks. While both have been proven effective in aiding smoking cessation, they are also associated with significant side effects and early discontinuations from treatment. Varenicline’s labeling indicates elevated instances of nausea, abnormal dreams, constipation, flatulence, and vomiting may be experienced by varenicline-treated patients compared to placebo-treated patients, and bupropion’s product label discloses potential adverse reactions including insomnia, rhinitis, dry mouth, dizziness, nervous disturbance, anxiety, nausea, constipation, arthralgia and seizures. Both varenicline and buproprion have warning and precautions for neuropsychiatric adverse events, including suicidal ideations. High uptake into the brain combined with activity at “off target” receptors could be responsible for varenicline’s adverse event profile.

The most common OTC treatments bought in pharmacies for smoking cessation in the United States and worldwide are NRTs such as nicotine gums, nicotine lozenges, and nicotine patches. Each of these products delivers nicotine to the body although they generally do so at different rates and to different parts of the body than does a traditional cigarette. As concluded by the authors of several published clinical trials conducted by others, these therapies are generally less effective than prescription treatments. Recognized brands include Niquitin, Nicotinell, Nicorette and Nicoderm. Depending on the duration of treatment, the average cost of certain OTC smoking cessation treatments can exceed prescription treatments.

Pharmaceutical companies, including larger companies in the industry, who have extensive expertise in non-clinical and clinical testing and in obtaining regulatory approvals for products, may develop other OTC treatments for smoking cessation. In addition, academic institutions, government agencies and other public and private organizations conducting research may seek patent protection with respect to potentially competitive products or technologies. These organizations may also establish exclusive collaborative or licensing relationships with our competitors.

HUMAN CAPITAL RESOURCES

As of December 31, 2025, we had a total of 28 employees, of whom 11 were engaged in research and development functions, including clinical development, regulatory affairs and manufacturing, and 17 were engaged in general and administrative functions, including accounting and finance, administration, and commercial.

All of our employees have entered into non-disclosure agreements regarding our intellectual property, trade secrets and other confidential information. None of our employees are represented by a labor union or covered by a collective bargaining agreement, nor have we experienced any work stoppages. We believe that we maintain satisfactory relations with our employees.

From time to time, we also use outside consultants to provide advice on our clinical development plans, research programs, administration and potential acquisitions of new technologies.

We believe that our future success largely depends upon our continued ability to attract and retain highly skilled employees. We emphasize a number of measures and objectives in managing our human capital assets, including, among others, employee engagement, development, and training, talent acquisition and retention, and employee safety and wellness. We provide our employees with competitive salaries and bonuses, opportunities for equity ownership, development programs that enable continued learning and growth and an employment package that promotes well-being across all aspects of their lives, including health care, retirement planning and paid time off.

COMPANY INFORMATION

We were incorporated in California in October 1991 and subsequently reorganized as a Delaware corporation in March 1995. Our principal executive offices are located at 22722 29th Dr. SE Suite 100 Bothell, WA 98021 and 1040 West Georgia Street, Suite 1030, Vancouver, B.C. V6E 4H1, Canada and our telephone number is (604) 210-2217.

AVAILABLE INFORMATION

We maintain a website at www.achievelifesciences.com. The information contained on or accessible through our website is not part of this Annual Report on Form 10-K. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, are available free of charge on our website as soon as reasonably practicable after we electronically file such reports with, or furnish those reports to, the SEC. The SEC also maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC at www.sec.gov.