Skip to content

Safety Study of Cytisinicline in Adult Combustible and/or E-cigarette Smokers

A Multicenter, Open-Label Study Assessing Long-Term Exposure With Cytisinicline 3 mg TID

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06435221
Acronym
ORCA-OL
Enrollment
479
Registered
2024-05-30
Start date
2024-05-28
Completion date
2025-10-06
Last updated
2025-11-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking Cessation, Vaping Cessation

Brief summary

Safety assessment of long-term 3 mg cytisinicline three times daily (TID) exposure for 52 weeks is the main purpose of this study, conducted in the United States.

Interventions

film-coated oral tablets containing 3 mg cytisinicline

Sponsors

Achieve Life Sciences
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Prior participation in the ORCA-2, ORCA-3 or ORCA-V1 clinical studies. 2. Former ORCA-2/ORCA-3 and ORCA-V1 subjects who are current daily cigarette smokers and/or daily nicotine-containing electronic cigarette users. Amount of daily combustible and/or nicotine containing electronic cigarette use at baseline is determined by subject self-report. 3. At Screening, subjects must have expired carbon monoxide (CO) ≥10 ppm if self-reporting as smokers or ≥30 ng/mL cotinine using a point-of-care cotinine oral fluid screening device if self-reporting as users of nicotine containing electronic cigarettes. 4. Willing to initiate cytisinicline treatment on the day after enrollment and set a quit date within 14 days of starting treatment. 5. Willing to actively participate in the study's cessation behavioral support provided throughout the study. 6. Able to fully understand study requirements, willing to participate, and comply with dosing schedule. 7. Sign the Informed Consent Form.

Exclusion criteria

1. Known hypersensitivity to cytisinicline or any of the excipients. 2. Clinically significant abnormal screening serum chemistry or hematology values. 3. Clinically significant abnormal screening 12-lead ECG determined after minimum of 5 minutes in supine position (ie, requiring treatment or further assessment). 4. Recent history (within 3 months prior to screening) of acute myocardial infarction, unstable angina, stroke, cerebrovascular incident or hospitalization for congestive heart failure. 5. Current uncontrolled hypertension (systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥100 mmHg). 6. Currently psychotic or having had a psychotic event within 3 months prior to screening; currently having suicidal ideation or risk for suicide (corresponding to question 4 or 5 on the screening C-SSRS OR Yes to any suicidal behavior question on the screening C-SSRS with clear suicidal intent or previous attempt); or current symptoms of moderate to severe depression (depression score ≥11 on the HADS) at screening. If any subject becomes psychotic during the study, they must be removed from cytisinicline treatment and/or additional study visits. 7. Severe renal impairment defined as a creatinine clearance (CrCl) \<60 mL/min on screening lab (estimated with the Cockroft-Gault equation). 8. Hepatic impairment defined as alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \>2.0 x the upper limit of normal (ULN) on screening lab. 9. Women who are pregnant or breast-feeding. 10. Female subjects of childbearing potential who do not agree to use acceptable methods of birth control during the study. Acceptable methods of birth control include: * True abstinence: When this is in line with the preferred and usual lifestyle of the subject. \[Periodic abstinence (eg, calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception\]. * Barrier methods: * diaphragm * cervical cap * contraceptive sponge * Hormonal methods: * Oral contraceptives * Vaginal ring such as NuvaRing * Skin patch such as Xulane * Injection such as Depro-Provera * Implantable rod such as Nexplanon 11. Participation in a clinical study with an investigational drug in the 4 weeks prior to enrollment. 12. Any other reason that the investigator views the subject should not participate or would be unable to fulfill the requirements for the study.

Design outcomes

Primary

MeasureTime frame
Incidence Rate of Treatment Emergent Serious Adverse Events (SAEs)up to Week 52

Secondary

MeasureTime frame
Incidence Rate of Treatment Emergent Adverse Events (TEAEs)up to Week 52
Incidence Rate of Related TEAEsup to Week 52
Number of Participants With Clinically Significant Abnormal Hematology and Chemistry Parametersup to Week 52
Incidence Rate of Related Treatment Emergent SAEsup to Week 52
Number of Participants With Potentially Clinically Significant Abnormal Vital Signsup to Week 52
Percentage of Participants With Potentially Clinically Significant Abnormal Vital Signsup to Week 52
Percentage of Participants With Clinically Significant Abnormal Hematology and Chemistry Parametersup to Week 52

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026