← Therapy pipeline
Investigational · Obesity development

Enobosarm

Ostarine · MK-2866 · GTx-024 · VERU-024 · Veru

Oral selective androgen receptor modulator studied with semaglutide for lean-mass preservation and weight reduction in older adults with obesity.

Androgen receptor
Other study areas
Body compositionWeight maintenance / switching
Selected program areas, not approvals. See the full profile for individual trials.
Obesity stagePhase 2Updated as of November 2026
SponsorVeru
TargetsAndrogen receptor
RouteOral tablet
DevelopmentObesity-specific
01 / Evidence

Selected study results

QUALITY · 16-week pooled body-composition resultsBody composition during weight management1.2% · 16 weeks · Phase 2b
Phase 2b · Oral · Sponsor-reported results

Lean-mass loss by DXA · primary endpoint · 16 weeks

Less lean-mass loss; similar scale-weight loss in this pooled comparison.

Pooled enobosarm + semaglutide
1.2%
Placebo + semaglutide
4.1%

Adults aged ≥60 with obesity or overweight and a weight-related condition · Enobosarm 3 mg or 6 mg daily, pooled; both groups received semaglutide · Trial N=168 · Sponsor-reported descriptive mean changes; pooled efficacy sample 100 active versus 48 placebo; adjusted primary comparison p=0.002. Results & methods ↗

QUALITY · pooled 16-week descriptive mean changes
MeasureEnobosarm + semaglutidePlacebo + semaglutide
DXA lean mass−1.2%−4.1%
DXA fat mass−10.9%−8.6%
Body weight−4.4 kg−4.7 kg
Participants with ≥10% stair-climb-power decline19.4% (98 evaluated)42.6% (47 evaluated)
Additional results or analyses from this same study
  • Statistical interpretationThe fat-mass comparison had p=0.096; the stair-climb responder comparison had p=0.0049. Table values are descriptive means, while the sponsor’s statistical comparisons used adjusted models. The pooled analysis combines two doses and is not an estimate for 3 mg alone.
  • 12-week extension after semaglutide withdrawalWeight regain during the extension was 1.41% with 3 mg, 2.87% with 6 mg and 2.57% with placebo; the 3-mg comparison had p=0.038. These are changes after withdrawal, not total weight loss from the original study baseline. Follow-up source ↗
  • Safety disclosureALT elevations were more frequent at 6 mg. See the safety context below and the sponsor’s separate safety report. Follow-up source ↗

The relative reduction in lean-mass loss is not a weight-loss percentage. DXA lean mass is not identical to skeletal muscle or strength. Short-term findings in older adults should not be generalized to all GLP-1 users; PLATEAU must establish longer-term weight and functional outcomes.

Each graphic shows results within one study. Alternate analyses and follow-up from that study are labeled together. Study averages are not individual predictions or cross-trial comparisons.

Tolerability

Safety context

In QUALITY, the sponsor reported mild ALT elevations in 0/56 placebo recipients, 1/56 receiving 3 mg and 6/56 receiving 6 mg. No Hy’s-law liver injury or treatment-related serious adverse events were reported in that disclosure. These short-term findings do not establish long-term safety; the subsequent PLATEAU study uses 3 mg.

02 / How it works

Mechanism at a glance

GLP-1GLP-1—
GIPGIP—
GCGglucagon—
AMYamylin—
OTHOther targetsTargeted

Body-composition and other targets appear alongside hormone pathways in this overview.

Explore the hormone anatomy ↗
03 / Development

Obesity stage by formulation

Enobosarm + semaglutideOral tablet · Daily tablet + weekly injection
Phase 2U.S. PLATEAU study fully enrolled; results pending
Milestone → next

Latest: The Phase 2b PLATEAU trial has enrolled 239 participants. Earlier QUALITY results showed less lean-mass loss, with similar scale-weight loss in the pooled 16-week comparison.

Next: Sponsor expects PLATEAU interim DXA results in Q1 2027 and final topline results in Q4 2027; these are anticipated dates, not reported outcomes.

04 / Study records

Clinical study records

Obesity and weight-management studies appear first. Related-condition trials follow by phase, with focus labels to show what each study evaluates. Study stage and results reporting are listed separately. Results summarized above are identified as peer-reviewed or sponsor reported. Otherwise, the label states whether results were posted to a registry or reported in the linked source.

Obesity and weight-management studies

Phase 2 studies2 records

Phase 2b

PLATEAU

Weight management
Study: OngoingResults: Phase 2b results pendingStatus reviewed November 2026

U.S. randomized, blinded study in 239 adults aged 65 or older with BMI ≥35. Enobosarm 3 mg daily or oral placebo, each with weekly semaglutide, for 68 weeks. Primary endpoint: percent body-weight change at week 68; body composition and physical function are additional measures. Registry remains active, not recruiting (last update September 4, 2026).

Phase 2b

QUALITY

Weight management
Study: CompletedResults: Sponsor-reported 16-week and extension results shown aboveStatus reviewed November 2026

Completed U.S. randomized study in 168 adults aged 60 or older with obesity or overweight plus a weight-related condition. Enobosarm 3 mg, 6 mg or placebo daily with semaglutide for 16 weeks; primary endpoint: DXA lean-mass change. A further 12-week extension stopped semaglutide and continued the assigned oral treatment. Sponsor results are available; no registry results posted at this check.