ACE-031

Tested in people

It has been tested in people, but it is not an approved medicine. The studies are usually small.

Also called ActRIIB-Fc / Ramatercept

Tested in people with muscular dystrophy. Trials were stopped early over safety concerns with blood vessels.

Can a doctor prescribe this?

No. Pharmacies are not on record as being allowed to make this into a medicine.

The FDA has not approved this as a medicine.

Development was halted. Not approved and not on the compounding list.

Official status: Not on the 503A bulks list. Checked 2026-08-04.

Lab suppliers we list: 3

Taken word for word from the studies and trials listed on this page. This is not a recommendation and not a dose for anyone to take.

See source wording
under the skin · every 4 weeks · for 24 weeks
Extension Study of ACE-031 in Subjects With Duchenne Muscular DystrophyPHASE2 · NCT01239758
“ACE-031 0.5 mg/kg subcutaneously once every 4 weeks for 24 weeks..”
See source wording
under the skin · every 4 weeks · for 12 weeks
Study of ACE-031 in Subjects With Duchenne Muscular DystrophyPHASE2 · NCT01099761
“ACE-031 0.5 mg/kg q4wk.”

10 mg/kg
rats ·
Gel Electrophoretic Detection of Black Market ACE-031.Drug testing and analysis · 2025
“However, due to the relatively high dose applied (10 mg/kg body weight) and possible differences in metabolism, the detection window may be different in humans.”