Gene therapy for treating spinal muscular atrophy Type 1

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the safety and efficacy of the GC101 gene therapy drug administered intrathecally to patients with spinal muscular atrophy Type 1 (SMA 1). It is an open-label, dose-escalation trial conducted across multiple centers in China. Participants will be monitored for short-term safety over 52 weeks and will enter a long-term follow-up phase lasting five years. The primary efficacy endpoint is the ability to sit unassisted for at least 10 seconds by the time patients reach 18 months of age.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Six months of age and younger on day of vector infusion with Type 1 SAM as defined by the following features:

  * Diagnosis of SMA based on gene mutation analysis with bi-allelic SMN1 mutations (deletion or point mutations) and 2 copies of SMN2;
  * Onset of disease before 6 months of age
* The patient's legal guardian(s) must be able to understand the purpose and risks of the study and voluntarily provide signed and dated informed consent prior to any study-related procedures being performed.

Exclusion Criteria:

* Patient who has participated in a previous gene therapy research trials;
* Patient who has received Nusinersen and Risdiplam treatment;
* Patient who has AAV9 neutralizing antibody titer ≥1:200;
* Patient who requires non-invasive ventilatory support averaging≥16 hours/day;
* Patient with a point mutation in SMN2 (c.859G\>C);
* Patient who requires non-invasive ventilatory support averaging≥16 hours/day at screening;
* Patient who use invasive ventilatory support or pulse oximetry \< 95% saturation while awake and calm at screening;
* Patient who is positive for human immunodeficiency virus (HIV) antibody, hepatitis B surface antigen, hepatitis C antibody, or treponema pallidum antibody;
* Abnormal laboratory values considered clinically significant, including gamma-glutamyl transferase(GGT), Aspartate aminotransferase (AST), alanine aminotransferase (ALT), bilirubin \> 3x upper limit of normal (ULN), Hemoglobin (Hgb)\< 110 or \>150 g/L, platelet \<183x10\^9/L or 614x10\^9/L;
* Class IV patient based on Modified Ross Heart Failure Classification for Children;
* Patient with a history of glucocorticoid allergy;
* Contraindication that would interfere with the lumbar puncture procedures;
* Presence of an untreated active infection requiring systemic antiviral therapy at any time during the screening period;
* Vaccination less than 2 weeks before infusion of vector;
* Patient who has any concurrent clinically significant major disease or any other condition that, in the opinion of the Investigator, makes the subject unsuitable for participation in the study.

Note: Other protocol defined inclusion/exclusion criteria may apply.

Where it's running

• Peking University， First Hospital, Department of Pediatrics
  Beijing, China Recruiting
• Bayi Children's Hospital, Seventh Medical Center, PLA general hospital
  Beijing, China Recruiting
• Shengjing Hospital of China Medical University
  Shenyang, China Recruiting
• Children's Hospital of Soochow University
  Suzhou, China Recruiting

Study contacts

• Study coordinator: GeneCradle, Inc. China
• Email: ind@bj-genecradle.com
• Phone: 86-13501380583

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

• Pregnancy-time treatment of fetal SMA: a registry of mother-child outcomes

  This registry collects information on pregnancies where a fetus diagnosed with spinal muscular atrophy was treated with a disease‑modifying therapy in the womb to see how the pregnancy and baby fare after birth.

  Recruiting St. Jude Children's Research Hospital · Memphis, Tennessee · NCT07805278

• Intrathecal Zolgensma in spinal muscular atrophy patients in Japan

  This study tests the safety and real‑world effectiveness of intrathecal onasemnogene abeparvovec in SMA patients in Japan.

  Recruiting at 4 sites Novartis · Toyoake, Aichi-ken and 3 other locations · NCT07767890

• Spinal muscular atrophy patients get a single intrathecal gene therapy dose to see how it works in real-world U.S. settings

  This study tests whether a one-time intrathecal dose of ITVISMA® (onasemnogene abeparvovec-brve) is safe and effective for SMA patients in real-world U.S. clinical practice.

  Recruiting at 6 sites Phase 4 Novartis · Little Rock, Arkansas and 5 other locations · NCT07448610

• Salanersen (BIIB115) for improving movement in people 15–60 with spinal muscular atrophy who are treatment‑naïve or previously on risdiplam

  This trial tests whether salanersen helps movement and is safe for people aged 15 to 60 with spinal muscular atrophy who are either new to treatment or have taken risdiplam.

  Recruiting at 3 sites Phase 3 Biogen · Palo Alto, California and 2 other locations · NCT07444476

• CuidAME: Spain's longitudinal registry for spinal muscular atrophy

  This project collects long-term clinical and treatment data from children and adults with genetically confirmed 5q spinal muscular atrophy in Spain to track outcomes over time.

  Recruiting Fundació Sant Joan de Déu · Esplugues de Llobregat · NCT07231549

• Apitegromab for infants under 2 with spinal muscular atrophy

  This trial will test whether adding apitegromab to approved SMA therapy helps infants under 2 with 5q SMA reach better motor milestones.

  Recruiting at 23 sites Phase 2 Scholar Rock, Inc. · Phoenix, Arizona and 22 other locations · NCT07047144

How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.