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Phase 3 Completed N=428 Randomized Double-blind Treatment

Clinical Trial of CAM2038, Long-acting Subcutaneous Buprenorphine Injections for Treatment of Patients With Opioid Dependence

Opioid Use Disorders
Source: ClinicalTrials.gov NCT02651584 ↗
Enrolled (actual)
428
Serious AEs
4.9%
Results posted
Aug 2019
Primary outcomePrimary: Response Rate, Denoted by Response Rate (Weeks 1-24). — 31; 37; 184; 176 Participants — p=<0.001
◆ Published Evidence
Highly cited
251citations · ~31 / year
Weekly and Monthly Subcutaneous Buprenorphine Depot Formulations vs Daily Sublingual Buprenorphine With Naloxone for Treatment of Opioid Use Disorder: A Randomized Clinical Trial.
JAMA internal medicine · 2018 · Open access · Likely link

Summary

Phase III, randomized, double-blind, double-dummy, active-controlled, parallel group multi-center trial, designed to evaluate the non-inferiority of CAM2038 compared to an existing standard of care (SL BPN/NX) in initiation and maintenance treatment with BPN.

Linked Publications (3)

  • Weekly and Monthly Subcutaneous Buprenorphine Depot Formulations vs Daily Sublingual Buprenorphine With Naloxone for Treatment of Opioid Use Disorder: A Randomized Clinical Trial.
    JAMA internal medicine · 2018 · 251 citations · Open access · Likely link
  • Extended-Release Injection vs Sublingual Buprenorphine for Opioid Use Disorder With Fentanyl Use: A Post Hoc Analysis of a Randomized Clinical Trial.
    JAMA network open · 2024 · 23 citations · Open access · Likely link
  • Exploring Opioid Use Disorder Outcomes by Quantitative Urinalysis: Post Hoc Analysis of a Phase 3 Randomized Clinical Trial.
    Journal of addiction medicine · 2025 · 2 citations · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Response Rate, Denoted by Response Rate (Weeks 1-24).
31; 37; 184; 176 <0.001 sig
SECONDARY
Cumulative Distribution Function (CDF) of Percentage of Urine Samples Negative for Illicit Opioids
0.0; 26.7; 6.7; 26.7 0.004 sig
SECONDARY
Number of Subjects With Sustained Abstinence of Opioid Use
30; 39; 185; 174
SECONDARY
Number of Subjects Remaining in the Study (Retention Rate)
126; 121; 89; 92 0.006 sig

Eligibility Criteria

Inclusion Criteria

  • Subject must provide written informed consent prior to the conduct of any trial-related procedures.
  • Male or female, 18-65 years of age, inclusive.
  • Diagnosis of moderate or severe opioid use disorder as described (DSM-V).
  • Voluntarily seeking treatment for opioid use disorder.
  • Have not received medication-assisted treatment for opioid use disorder within 60 days prior to randomization.
  • Considered by the Investigator to be a good candidate for BPN treatment, based on medical and psychosocial history.
  • Male or Female subjects of childbearing potential must be willing to use a reliable method of contraception during the entire trial (Screening visit to Follow-up visit)

Exclusion Criteria

  • Current diagnosis of Acquired Immune Deficiency Syndrome (AIDS).
  • Current diagnosis of chronic pain requiring opioids for treatment.
  • Current DSM-V diagnosis of moderate to severe substance use disorder on any other psychoactive substances other than opioids, caffeine or nicotine (e.g., alcohol, cocaine, sedatives).
  • Pregnant or lactating or planning to become pregnant during the trial.
  • Hypersensitivity or allergy to BPN or other opioids, naloxone or other opioid antagonists, or excipients of CAM2038 or SL BPN.
  • Requires current use of agents that are strong inhibitors or inducers of cytochrome P450 3A4 (CYP3A4) such as some azole antifungals (e.g., ketoconazole), macrolide antibiotics (e.g., clarithromycin), or protease inhibitors (e.g., ritonavir, indinavir, and saquinavir).
  • Subjects with active signs or symptoms of hepatitis and requiring treatment. Subjects with no acute signs of inflammation, and no clinical necessity for therapy will be allowed, at the discretion of the Investigator.
  • Recent history of or current evidence of suicidal ideation or active suicidal behavior as based on the Columbia Suicide Severity Rating Scale (C-SSRS) ("Yes" responses to questions 4 or 5).
  • Any pending legal action that could prohibit participation or compliance in the trial.
  • Exposure to any investigational drug within the 4 weeks prior to Screening.
  • Participants with a history of risk factors of Torsades de Pointes (e.g., heart failure, hypokalemia, family history of Long QT Syndrome) or an electrocardiogram (ECG) demonstrating a Fridericia's corrected QT interval (QTcF) >450 msec in males and QTcF >470 in females at screening.
  • Aspartate aminotransferase (AST) levels >3 X the upper limit of normal, alanine aminotransferase (ALT) levels >3 X the upper limit of normal, total bilirubin >1.5 X the upper limit of normal, or creatinine >1.5 X upper limit of normal on the Screening laboratory assessments, or other clinically significant laboratory abnormalities, which in the opinion of the Investigator may prevent the subject from safely participating in trial.
  • Significant symptoms, medical conditions, or other circumstances which, in the opinion of the Investigator, would preclude compliance with the protocol, adequate cooperation in the trial or obtaining informed consent, or may prevent the subject from safely participating in trial (including, but not limited to, the risks described as precautions, warnings, and contraindications in the current version of the Investigator's Brochure for CAM2038).
  • Is an employee of the Investigator or the trial site, with direct involvement in the proposed trial or other trials under the direction of the Investigator or trial site, or is a family member of an employee or of the Investigator.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02651584) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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