Actively Recruiting

Phase 3
Age: 3Years +
FEMALE
NCT05898620

A Novel, Regulated Gene Therapy (NGN-401) Study for Females With Rett Syndrome

Led by Neurogene Inc. · Updated on 2026-03-13

33

Participants Needed

16

Research Sites

337 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This study will evaluate the efficacy and safety profiles of the investigational gene therapy, NGN-401, in females with typical Rett syndrome.

CONDITIONS

Official Title

A Novel, Regulated Gene Therapy (NGN-401) Study for Females With Rett Syndrome

Who Can Participate

Age: 3Years +
FEMALE

Eligibility Criteria

Eligible

You may qualify if you...

  • Female participants aged 3 years or older
  • Diagnosis of typical Rett syndrome with a documented disease-causing mutation in the MECP2 gene
  • Stable anti-epileptic drug regimen for at least 12 weeks prior to enrollment
  • Participant must be in the post-regression stage of Rett syndrome
  • Participant and caregiver must live within a 2-hour drive of the study center for at least 3 months after treatment
  • Participant must have never taken trofinetide or discontinued it due to tolerability, lack of efficacy, or other reasons
Not Eligible

You will not qualify if you...

  • Normal or near normal hand function
  • Presence of any clinically significant condition other than Rett syndrome
  • Any medical condition that prevents intracerebroventricular administration, use of anesthetics, or immune suppression required for study procedures
  • Other inclusion and exclusion criteria may also apply

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 16 locations

1

University of Alabama at Birmingham

Birmingham, Alabama, United States, 35233

Actively Recruiting

2

UCSF Benioff Children's Hospital Oakland

Oakland, California, United States, 94609

Actively Recruiting

3

Children's Hospital Colorado

Aurora, Colorado, United States, 80045

Actively Recruiting

4

Nicklaus Children's Hospital Research Institute

Miami, Florida, United States, 33155

Actively Recruiting

5

Rush University Medical Center

Chicago, Illinois, United States, 60612

Actively Recruiting

6

Kennedy Krieger Institute

Baltimore, Maryland, United States, 21205

Actively Recruiting

7

Boston Children's Hospital

Boston, Massachusetts, United States, 02115

Actively Recruiting

8

Montefiore Medical Center

New York, New York, United States, 10467

Actively Recruiting

9

UNC at Chapel Hill

Chapel Hill, North Carolina, United States, 27514

Actively Recruiting

10

Nationwide Children's Hospital

Columbus, Ohio, United States, 43205

Actively Recruiting

11

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, United States, 19104

Not Yet Recruiting

12

Vanderbilt University Medical Center

Nashville, Tennessee, United States, 37232

Actively Recruiting

13

Texas Children's Hospital

Houston, Texas, United States, 77030

Actively Recruiting

14

The Children's Hospital at Westmead

Sydney, New South Wales, Australia

Active, Not Recruiting

15

Royal Hospital for Children and Young People

Edinburgh, United Kingdom, EH16 4TJ

Terminated

16

Manchester University NHS Foundation Trust

Manchester, United Kingdom, M13 9WL

Terminated

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Research Team

C

Contact Center

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

SINGLE

Allocation

NON_RANDOMIZED

Model

SEQUENTIAL

Primary Purpose

TREATMENT

Number of Arms

4

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