Drugs / Garetosmab
last change Jul 2026 re-read 2 minutes ago

Garetosmab

also known as REGN2477

Monoclonal antibody targets INHBA via inhibition

Developed for
fibrodysplasia ossificans progressiva · obesity disorder · inclusion body myositis
Investigated by
Regeneron Pharmaceuticals

Trials 9 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 13 trials
Phase 1 NCT06970405 May 2025 → Jun 2026 obesity disorder Regeneron Pharmaceuticals Withdrawn No outcome recorded
Phase 1 NCT02943239 Dec 2016 → Apr 2019 Regeneron Pharmaceuticals Completed No outcome recorded
Phase 1 NCT02870400 Jul 2016 → Jan 2017 Regeneron Pharmaceuticals Completed No outcome recorded
Phase 23 trials
Phase 2 NCT06299098 Mar 2024 → May 2026 overdue obesity disorder Regeneron Pharmaceuticals Active not recruiting No outcome recorded
Phase 2 NCT03710941 Feb 2019 → Aug 2020 inclusion body myositis Regeneron Pharmaceuticals Withdrawn No outcome recorded
Phase 2 NCT03188666 Feb 2018 → Sep 2019 fibrodysplasia ossificans progressiva Regeneron Pharmaceuticals Completed No outcome recorded
Phase 33 trials
Phase 3 NCT07559513 Jul 2026 → Dec 2028 expected fibrodysplasia ossificans progressiva Regeneron Pharmaceuticals Not yet recruiting No outcome recorded
Phase 3 NCT05394116 Nov 2022 → Jul 2025 overdue fibrodysplasia ossificans progressiva Regeneron Pharmaceuticals Active not recruiting No outcome recorded
Phase 3 NCT04577820 Oct 2021 → Mar 2022 fibrodysplasia ossificans progressiva Regeneron Pharmaceuticals Withdrawn No outcome recorded
Also used as a comparator or background therapy in 1 trial
PhaseRegistry idDatesIndicationSponsorStatusOutcome
NCT07301450 Background fibrodysplasia ossificans progressiva Regeneron Pharmaceuticals Temporarily not available No outcome recorded

Press releases naming this drug 3 releases

DateIssuerRelease
2026-02-19 Regeneron Pharmaceuticals Garetosmab Biologics License Application Accepted for FDA Priority Review for the Treatment of Fibrodysplasia Ossificans Progressiva (FOP) regeneron.com
2025-09-17 Regeneron Pharmaceuticals Regeneron Announces Positive Phase 3 Trial in Adults with Ultra-Rare Genetic Disorder Fibrodysplasia Ossificans Progressiva (FOP), Demonstrating that Garetosmab Prevents Greater than 99% of Abnormal Bone Formation regeneron.com
2020-01-09 Regeneron Pharmaceuticals Regeneron Announces Encouraging Garetosmab Phase 2 Results in Patients with Ultra-Rare Debilitating Bone Disease regeneron.com

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 11 sources stand behind the page.

FieldValueCited text
Known as Garetosmab ClinicalTrials.gov intervention name — accepted as the source's own label NCT06299098
5

NCT07559513

NCT07301450

NCT05394116

NCT06970405

NCT04577820

Known as REGN2477 ClinicalTrials.gov intervention name — accepted as the source's own label NCT03188666
3

NCT02870400

NCT02943239

NCT03710941

Action Inhibit “Inhibin beta A chain inhibitor” CHEMBL4298176
Modality Monoclonal antibody “Placebo to match garetosmab, is supplied as a liquid solution without the monoclonal antibody (or the protein) and is administered IV.” NCT05394116
Route Intravenous Intravenously and Subcutaneously Administered REGN2477” NCT02870400
Route Subcutaneous “Intravenously and Subcutaneously Administered REGN2477” NCT02870400
Target INHBA “Inhibin beta A chain inhibitor” CHEMBL4298176