Neurodevelopmental Disorders

Rett syndrome drug pipeline

  • ICD-11 LD90.4
  • MeSH D015518

1 compound from 1 company is in active clinical development for rett syndrome.

1Compound
1Company
0Phase 3+
1Upcoming readout
10Trials recruiting

Mechanisms: Natural product (1)

Pipeline data compiled October 2026 · every fact sourced.

Upcoming readouts & recent results

  • October 2028AnticipatedNTI164Registry resultsNCT07257978

    ClinicalTrials.gov estimated primary completion of the Phase II/III placebo-controlled crossover study of NTI164 in Rett syndrome: October 2028 (not yet recruiting; estimated start July 2027). ↗

  • 2025-06-26ReportedNTI164Full resultsmetNCT06621043

    Open-label Phase I/II study of NTI164 in 11 girls with Rett syndrome published: improvement on CGI-I (p=0.028), CGI-S, RSBQ total score and caregiver burden after 12 weeks; well tolerated. ↗

See the full catalyst calendar →

Compounds in development (1)

CompoundCompanyPhaseStatusMechanism
NTI164Neurotech International LimitedPhase 1/2ActiveNatural product

Trials recruiting now (7)

7 drug-interventional rett syndrome trials recruiting now, of 46 registered interventional trials. Browse all on ClinicalTrials.gov →

Frequently asked

How many drugs are in development for rett syndrome?
1 compound from 1 company is in active clinical development for rett syndrome.
What are the next rett syndrome trial readouts?
Upcoming catalysts include NTI164 (October 2028).
How many clinical trials are recruiting for rett syndrome?
7 drug-interventional rett syndrome trials are currently recruiting participants, out of 46 registered interventional trials.