RAD-140
Also known as: rad140, rad 140, testolone, RAD140
Selective androgen receptor modulator studied for anabolic effects on muscle and bone with reduced androgenic side effects.
Quick Reference
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Overview
Chemical compound
Vosilasarm, also known by the development codes RAD140 and EP0062 and by the black-market name Testolone or Testalone, is a selective androgen receptor modulator (SARM) which is under development for the treatment of hormone-sensitive breast cancer. It is specifically under development for the treatment of androgen receptor-positive, estrogen receptor-negative, HER2-negative advanced breast cancer. Vosilasarm was also previously under development for the treatment of sarcopenia, osteoporosis, and weight loss due to cancer cachexia, but development for these indications was discontinued. The drug is taken by mouth.
Mechanism of Action
Vosilasarm, also known by the development codes RAD140 and EP0062 and by the black-market name Testolone or Testalone, is a selective androgen receptor modulator (SARM) which is under development for the treatment of hormone-sensitive breast cancer. It is specifically under development for the treatment of androgen receptor-positive, estrogen receptor-negative, HER2-negative advanced breast cancer. Vosilasarm was also previously under development for the treatment of sarcopenia, osteoporosis, and weight loss due to cancer cachexia, but development for these indications was discontinued. The drug is taken by mouth.
What Researchers Are Saying
Community Reports - Not Medical Advice
The following is aggregated from public forums, Reddit, and research communities. These are anecdotal reports from researchers only - not verified clinical data and not a recommendation of any kind.
RAD-140 (also known as rad140, rad 140) is studied within the selective androgen receptor research community. Selective androgen receptor modulator studied for anabolic effects on muscle and bone with reduced androgenic side effects.
Last updated October 28, 2026
Research status: active. RAD-140 appears across selective androgen receptor research forums and academic literature. Researchers note this compound falls in the sarms category.
Last updated October 28, 2026
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