Viewing Study NCT06506461


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Study NCT ID: NCT06506461
Status: RECRUITING
Last Update Posted: 2025-11-14
First Post: 2024-06-14
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Gene Editing For Sickle Cell Disease
Sponsor: St. Jude Children's Research Hospital
Organization:

Study Overview

Official Title: St. Jude Autologous Genome Edited Stem Cells For Sickle Cell Disease-1
Status: RECRUITING
Status Verified Date: 2025-11
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This study is being done to test the safety of a new treatment called gene editing in Sickle Cell Disease (SCD) patients and to see if a single dose of this genetically modified cellular product will increase the amount of a certain hemoglobin called fetal hemoglobin (HbF) and help reduce the symptoms of SCD.

Primary Objective

* To assess the safety of autologous infusion of clustered regularly interspaced palindromic repeats (CRISPR)/ CRISPR associated protein (Cas9)-edited CD34+ hematopoietic stem and progenitor cells (HSPCs) in patients with severe SCD.

Secondary Objective

* To assess the efficacy autologous infusion of CRISPR/Cas9 genome-edited CD34+ HSPCs into patients with severe SCD.
Detailed Description: Participants will receive a daily subcutaneous (under the skin) dose of motixafortide for up to 3 consecutive days to mobilize their hematopoietic stem and progenitor cells (HSPCs) into peripheral blood. Participants who cannot tolerate motixafortide may receive a daily subcutaneous dose of plerixafor (Mozobil®) as an alternative for 3-5 consecutive days. About 2-4 hours after each dose of plerixafor/motixafortide is given, the collection of HSPCs will start via apheresis. The collected HSPCs will be sent to a lab to genetically modify them using CRISPR/Cas9.

In the lab, the researchers will take the stem cells and purify them. The stem cells will then be mixed with the CRISPR-Cas9 gRNA ribonucleoprotein (RNP) complex to change (edit) the genes in the cells and produce the new gene edited cellular product. This gene edited drug product will be frozen until ready for infusion.

Once the cellular product is ready, participants will be given Busulfan (a chemotherapy medicine) intravenously (IV) for 4 days. The thawed gene product will be given IV about 48 hours after the completion of the last dose of busulfan.

Participants will be followed for 3 years on this study. After the three years, participants will be followed for 12 more years on a long-term follow-up study.

Study Oversight

Has Oversight DMC: True
Is a FDA Regulated Drug?: True
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: False
Is an FDA AA801 Violation?:

Secondary ID Infos

Secondary ID Type Domain Link View
U01HL163983 NIH None https://reporter.nih.gov/quic… View