RAPA-501 Therapy for ALS

This study is testing a treatment called RAPA-501 Autologous T stem cells for people with Amyotrophic Lateral Sclerosis (ALS). RAPA-501 is made from your own cells, which are specially prepared to have anti-inflammatory properties. The main goal of this study is to see if RAPA-501 is safe and practical to give at a dose of 80 x 10^6 cells per infusion. You might be able to join if you are 18 or older, have been diagnosed with ALS within the last 24 months, and have an ALSFRS-R score (a measure of ALS severity) between 34 and 45. This study is currently unclear about its recruitment status.

Study design
This is an open-label, non-randomized, multi-center study. It is a phase 2/3 expansion cohort, planning to enroll 41 participants.
What's involved
You would undergo an apheresis procedure to collect your cells. You would then receive up to 4 infusions of RAPA-501, given six weeks apart, over 18 weeks.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint for safety and feasibility is measured through 30 weeks on-study.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT04220190

RAPA-501 Therapy for ALS

Recruiting
PHASE2Ages 18+InterventionalTreatment
Rapa Therapeutics LLC
~41 participants
Updated 2025-06-18 on ClinicalTrials.gov
What's tested:RAPA-501 Autologous T stem cells

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
In the expansion cohort enrolling standard-risk pwALS, determine the feasibility and safety of the highest established safe dose of RAPA-501 (80 x 10^6 cells per infusion).
Measured over Through 30 Weeks On-Study
Amyotrophic Lateral Sclerosis

NCT04220190

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Massachusetts General Hospital

    Boston, Massachusettsstudy coordinator listed

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Daniel Fowler, M.D. · STUDY_DIRECTOR · Rapa Therapeutics LLC
Daniel Fowler, M.D. Chief Medical Officer, RAPA Therapeutics, LLC
Email the study team

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  • In the expansion cohort enrolling standard-risk pwALS, determine the feasibility and safety of the highest established safe dose of RAPA-501 (80 x 10^6 cells per infusion).Through 30 Weeks On-Study