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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 3INTERVENTIONAL

Maridebart Cafraglutide Versus Placebo in Adult Participants With Obstructive Sleep Apnea Not on Positive Airway Pressure (PAP) Therapy

A Phase 3 Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy, Safety, and Tolerability of Maridebart Cafraglutide in Adult Participants With Obstructive Sleep Apnea Not on Positive Airway Pressure Therapy and Living With Overweight or Obesity (MARITIME-OSA-2)

Maridebart Cafraglutide Versus Placebo in Adult Participants With Obstructive Sleep Apnea Not on Positive Airway Pressure (PAP) Therapy (NCT07226765) is a Phase 3 interventional studying Obstructive Sleep Apnea, sponsored by Amgen. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This Phase 3 clinical trial is designed to evaluate the efficacy and safety of maridebart cafraglutide compared to placebo over a 52-week period in adults with obstructive sleep apnea (OSA) who are not on PAP therapy and are living with overweight or obesity.

What Stage of Research Is This?

Phase 3 trials confirm efficacy and safety in large patient groups (often 300–3,000+) and form the evidence base for an FDA approval submission. For Obstructive Sleep Apnea, Phase 3 studies typically randomize participants between the investigational treatment and either a placebo or current standard of care. A successful Phase 3 result is the threshold most treatments need to clear before regulatory approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 250 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Obstructive Sleep Apnea subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: - Participants must have an AHI of 15 or higher on polysomnography (PSG) at Day 1 before randomization. - Body Mass Index (BMI) of 27 kg/m\^2 or more at the time of screening. - History of at least one unsuccessful attempt at weight loss through diet and exercise. - Participants must not have used PAP therapy for at least 4 weeks before screening, are unwilling/unable to use PAP, and do not plan to use PAP therapy during the study. Who Should NOT Join This Trial: - Individuals who have had any previous or planned upper airway surgery for sleep apnea or major ear, nose, or throat surgery. - Those with significant craniofacial abnormalities that may affect breathing at screening. - Participants diagnosed with Central Apnea with a percentage of central apneas/hypopneas of 50% or more, or those diagnosed with Cheyne Stokes Respiration. - Active device treatment of OSA (eg, PAP, oral appliances), or other treatments, that in the opinion of the investigator, may interfere with study outcomes, unless willing to stop treatment at screening and throughout the study. - Individuals with respiratory diseases like obesity hypoventilation syndrome or daytime hypercapnia, neuromuscular diseases or other conditions that could interfere with the trial results, according to the investigator's opinion. Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * Participants must have an AHI of 15 or higher on polysomnography (PSG) at Day 1 before randomization. * Body Mass Index (BMI) of 27 kg/m\^2 or more at the time of screening. * History of at least one unsuccessful attempt at weight loss through diet and exercise. * Participants must not have used PAP therapy for at least 4 weeks before screening, are unwilling/unable to use PAP, and do not plan to use PAP therapy during the study. Exclusion Criteria: * Individuals who have had any previous or planned upper airway surgery for sleep apnea or major ear, nose, or throat surgery. * Those with significant craniofacial abnormalities that may affect breathing at screening. * Participants diagnosed with Central Apnea with a percentage of central apneas/hypopneas of 50% or more, or those diagnosed with Cheyne Stokes Respiration. * Active device treatment of OSA (eg, PAP, oral appliances), or other treatments, that in the opinion of the investigator, may interfere with study outcomes, unless willing to stop treatment at screening and throughout the study. * Individuals with respiratory diseases like obesity hypoventilation syndrome or daytime hypercapnia, neuromuscular diseases or other conditions that could interfere with the trial results, according to the investigator's opinion.

Treatments Being Tested

DRUG

Maridebart cafraglutide

Participants will receive maridebart cafraglutide SC.

DRUG

Placebo

Participants will receive placebo SC.

Locations (20)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Peninsula Research Associates
Rolling Hills Estates, California, United States
Teradan Clinical Trials
Brandon, Florida, United States
Destiny Research Center
Palmetto Bay, Florida, United States
Clinical Research Center Of Florida
Pompano Beach, Florida, United States
Basil Clinical
Laurelton, New York, United States
Monroe Biomedical Research
Monroe, North Carolina, United States
CTI Clinical Research Center
Cincinnati, Ohio, United States
FutureSearch Trials of Neurology
Austin, Texas, United States
Epic Medical Research - DeSoto
DeSoto, Texas, United States
Sleep Therapy & Research Center
San Antonio, Texas, United States
Northwest Clinical Research Center
Bellevue, Washington, United States
Woolcock Institute of Medical Research
Macquarie Park, New South Wales, Australia
Royal Brisbane and Womens Hospital
Herston, Queensland, Australia
Monash Medical Centre
Clayton, Victoria, Australia
CaRe Clinic
Calgary, Alberta, Canada
Aggarwal and Associates Ltd
Brampton, Ontario, Canada
Wharton Medical Clinic
Hamilton, Ontario, Canada
Nemocnice Rudolfa a Stefanie Benesov as
Benesov U Prahy, Czechia
Cerebrovaskularni poradna sro
Ostrava - Poruba, Czechia
Advanced Sleep Research
Berlin, Germany

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT07226765), the sponsor (Amgen), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT07226765 clinical trial studying?

This Phase 3 clinical trial is designed to evaluate the efficacy and safety of maridebart cafraglutide compared to placebo over a 52-week period in adults with obstructive sleep apnea (OSA) who are not on PAP therapy and are living with overweight or obesity. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT07226765?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT07226765?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT07226765. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07226765. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.