Drugs / RAG-21
last change Aug 2026 re-read 3 minutes ago

RAG-21

Small interfering RNA (siRNA) targets FUS via inhibition

Developed for
amyotrophic lateral sclerosis
Investigated by
Beijing Tiantan Hospital

Trials 1

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 0 NCT07080801 Aug 2025 → Aug 2026 overdue amyotrophic lateral sclerosis Beijing Tiantan Hospital Not yet recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 1

DateIssuerRelease
2024-11-19 Ractigen Therapeutics. Regulatory Ractigen Therapeutics Announces FDA Orphan Drug Designation for RAG-21 for the Treatment of ALS ractigen.com ↗
Ractigen Therapeutics, a clinical-stage pharmaceutical company dedicated to developing innovative therapies, today announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation (ODD) to RAG-21, its novel siRNA therapy targeting the FUS gene, for the treatment of amyotrophic lateral sclerosis (ALS).

All press releases naming this drug 1 release

DateIssuerRelease

Evidence & citations 5 cited values

Every value below carries the sentence it was read from. 1 source stands behind the page.

FieldValueCited text
Known as RAG-21 ClinicalTrials.gov intervention name — accepted as the source's own label NCT07080801 ↗
Action Inhibit “mediates its degradation, thereby downregulating FUS gene expression” NCT07080801 ↗
Modality Small interfering RNA (siRNA) “RAG-21 is a small interfering ribonucleic acid (siRNA)” NCT07080801 ↗
Route Intrathecal “intrathecal bolus administration of RAG-21” NCT07080801 ↗
Target FUS “it targets the FUS gene” NCT07080801 ↗