Clinical trial Recruiting at 1 site Observational

Long-Term Follow-Up of Gene Therapy Patients Treated at Seattle Children's

Official title: Long-Term Follow-Up of Subjects Treated With Seattle Children's Therapeutics Gene Therapy Products

Run by Seattle Children's Hospital · NCT07424157 · Data updated 2026-11-12

This long-term follow-up study tests the safety of Seattle Children's Therapeutics gene therapy products in people who have already received at least one infusion, for up to 15 years after their last treatment.

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Quick facts

Study typeObservational
SexAll
Enrollment500 (estimated)
SponsorSeattle Children's Hospital
Academic / other
Locations1 site (Seattle, Washington)
StatusRecruiting
StartedJune 15, 2026
Main results expectedMarch 31, 2041
Study endsMarch 31, 2041
Registry record updatedJune 25, 2026
Trial IDNCT07424157 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Individuals who have received or plan to receive an SCTx gene therapy product and have (or will have) a prior infusion, with consent or assent provided.

Probably not a fit

Patients without prior SCTx GTP exposure or without consent may not receive any direct benefit from participation.

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

What this trial studies

This is an observational long-term follow-up study to monitor safety after exposure to SCTx gene therapy products. No new treatment is given; participants undergo scheduled safety assessments and lab tests related to their prior SCTx GTP infusions. The study follows individuals for up to 15 years from their most recent SCTx infusion, aligning with FDA guidance for extended safety monitoring. Eligibility requires prior or planned SCTx GTP treatment and informed consent. Conducted at Seattle Children's Hospital with Seattle Children's Hospital as the lead sponsor.

Why it matters

Potential benefit: Participants may benefit from ongoing safety monitoring and early detection of potential long-term adverse events related to SCTx gene therapy products.

How similar studies have gone: Prior long-term follow-up protocols for gene therapies have shown value in detecting delayed safety signals, though specifics vary by product.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Enrolled in an SCTx GTP clinical trial;
2. Received or planned to receive an SCTx GTP;
3. Subject and/or legally authorized representative have provided consent/assent for study participation.

Where it's running

  • Seattle Children's Hospital
    Seattle, Washington, United States
    Recruiting

Study contacts

Similar studies

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

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.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.