What happens next in GLP-1 — and when.

Trial results

Resistance Training to Prevent Muscle Loss During Treatment With Tirzepatide

NCT07777575 on ClinicalTrials.gov · last registry update 2026-09-17

An unusually large phase 4: 150 participants, more than double the 75 typical for the stage. Due to report 31 May 2027, alongside 42 other tracked readouts that quarter. Primary outcome, as filed: Change in contractile thigh muscle volume (mL), as assessed by magnetic resonance imaging (MRI). Sponsors move these dates routinely; any movement since this site started watching is listed below. tirzepatide is already approved in the US for obesity, so this is asking a further question rather than establishing the drug works at all. The registry entry has been edited 1 time since then.

Status
RECRUITING
Phase
P4
Drug
tirzepatide
Mounjaro, Zepbound
Sponsor
Technical University of Munich
Sponsor type
Other
Enrollment
150
Started
2026-09-07
Primary completion
2027-05-31 estimated

Observed history

Every change this record has made since we started watching it. ClinicalTrials.gov shows only the current value. When a field is edited the previous one is overwritten and nothing is published to say so, so this history exists only because someone was recording it at the time.

DetectedChangeDetail
2026-09-17Status changedNOT_YET_RECRUITING → RECRUITING

Primary outcome

Change in contractile thigh muscle volume (mL), as assessed by magnetic resonance imaging (MRI)

Conditions studied

Obesity (BMI>30)

Every field above is taken directly from the registry record. See all detected changes across the class, or the tirzepatide page for this molecule’s full trial and approval history.

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