# Lykos Therapeutics

> Lykos Therapeutics, founded by MAPS as a public benefit drug developer, took an investigational MDMA-assisted treatment for PTSD through two Phase 3 trials and to the FDA. The agency declined approval in 2024, citing gaps in safety, durability and trial interpretability. After a $50 million recapitalization in 2025, the company was renamed Resilient Pharmaceuticals; a new application was reportedly submitted in 2026.

- **Founded:** 2014
- **Headquarters:** San Jose, United States
- **Founders:** Multidisciplinary Association for Psychedelic Studies (MAPS) (Founding nonprofit parent)
- **Products:** Investigational midomafetamine (MDMA) capsules with psychological intervention, MDMA-assisted therapy education and protocols
- **Notable:** Completed two Phase 3 studies of MDMA-assisted therapy for PTSD., Submitted a New Drug Application that the FDA accepted for priority review in 2024., Raised more than $100 million in a 2024 Series A.

## Products & services

- **Investigational midomafetamine (MDMA) capsules with psychological intervention** — A proposed supervised, multi-session PTSD treatment evaluated in two Phase 3 studies; it has not been FDA approved.
- **MDMA-assisted therapy education and protocols** — Training and clinical procedures developed for the research program; commercial rollout was contingent on approval.

## Achievements

- Completed two Phase 3 studies of MDMA-assisted therapy for PTSD.
- Submitted a New Drug Application that the FDA accepted for priority review in 2024.
- Raised more than $100 million in a 2024 Series A.

## Latest updates

- **2026-08** — MAPS responded to reporting that Resilient Pharmaceuticals, formerly Lykos, resubmitted the MDMA/PTSD New Drug Application. MAPS said it has no active role in the drug program.
- **2025-08** — The company changed its name from Lykos Therapeutics to Resilient Pharmaceuticals.
- **2025-05** — Lykos announced a $50 million first close of a Series B recapitalization.

## Links

- Website: https://lykospbc.com/
- LinkedIn: https://www.linkedin.com/company/lykos-therapeutics/
- Twitter/X: https://twitter.com/Lykos_PBC
- Facebook: https://www.facebook.com/mapsbcorp/

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Profile page: https://yespress.io/lykos-therapeutics
Published by YesPress — https://yespress.io
Last updated: 2026-09-29