Long-term follow-up of patients treated with gene-edited stem cells for sickle cell disease

Long-term Follow-up (LTFU) of Patients Treated With Genome-edited Autologous Hematopoietic Stem and Progenitor Cells (HSPC)

Observational Novartis · NCT06155500

This study is tracking patients with sickle cell disease who received a gene therapy to see how well it works and if it’s safe over 15 years.

Quick facts

Study typeObservational
Enrollment5 (estimated)
Ages18 Years and up
SexAll
SponsorNovartis Industry-sponsored
Locations1 site (Memphis, Tennessee)
Trial IDNCT06155500 on ClinicalTrials.gov

What this trial studies

This observational study aims to monitor patients who have received OTQ923, a gene therapy product involving genome-edited autologous hematopoietic stem and progenitor cells, for a duration of 15 years. The focus is on assessing the long-term safety and efficacy of the treatment, particularly its ability to induce fetal hemoglobin production in patients with sickle cell disease. The study involves multiple centers and aims to gather comprehensive data on patient outcomes over an extended period.

Who should consider this trial

Good fit: Ideal candidates for this study are patients who have previously undergone gene therapy and are willing to provide informed consent.

Not a fit: Patients who have not completed at least one year of safety follow-up in the prior treatment protocol will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the long-term effects and benefits of gene therapy for patients with sickle cell disease.

How similar studies have performed: Other studies involving gene therapy for sickle cell disease have shown promising results, indicating that this approach is gaining traction in the field.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Accepted invitation to join based on prior treatment with gene therapy.
2. Patients must provide informed consent prior to their entry into this study.

Exclusion Criteria:

1. Completion of less than 1 year of safety follow-up in the treatment protocol (CADPT03A12101)

Where this trial is running

Memphis, Tennessee

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Sickle Cell DiseaseGene therapygenome-edited hematopoietic stem and progenitor cellular therapysickle cellautologous transplantBCL11A
Last reviewed 2026-06-13 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.