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A Master Protocol for Orforglipron in Participants With Obstructive Sleep Apnea and Obesity or Overweight

Study acronym: ATTAIN-OSA
StatusCompleted
PhasePhase 3
Started2024-10-22
View on ClinicalTrials.gov ↗
Study GZRA is a master protocol that will support 2 independent studies, GZ01 and GZ02. Participants will be assigned to the appropriate study prior to randomization. The purpose of the studies is to evaluate the efficacy and safety of orforglipron in participants who have moderate-to-severe OSA and obesity or overweight. Study GZ01 will include participants who are unable or are unwilling to use PAP therapy. Study GZ02 will include participants who are on PAP therapy for at least 3 months at time of screening and plan to continue PAP therapy during the study.

Amendment history 3 changes detected by DataLookout

2026-09-15
notable
Trial completed
2026-09-15
minor
Final enrollment: 712 participants (planned 600)
2026-09-15
minor
Primary completion confirmed: July 2026 (last estimated November 2026)
Trial Details
NCT Number NCT06649045
Lead Sponsor Eli Lilly and Company
Conditions OSA, Overweight or Obesity
Enrollment 712 participants
Start Date 2024-10-22
Primary Completion 2026-07-21 (estimated)
Study Completion 2026-07-30 (estimated)
Updated on ClinicalTrials.gov 2026-09-14