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ACTIVE NOT RECRUITING Phase 3

Evaluation of Safety and Efficacy of CTX001 in Pediatric Participants With Severe Sickle Cell Disease (SCD)

NCT05329649 · View on ClinicalTrials.gov ↗

Study Summary

This is a single-dose, open-label study in pediatric participants with severe SCD and hydroxyurea (HU) failure or intolerance. The study will evaluate the safety and efficacy of autologous CRISPR-Cas9 modified CD34+ human hematopoietic stem and progenitor cells (hHSPCs) (CTX001).

Interventions

  • BIOLOGICAL CTX001

Study Locations (7)

Other

  • University Hospital Duesseldorf - Department of Pediatric Oncology, Hematology and Clinical Immunology — Düsseldorf
  • IRCSS Ospedale Pediatrico Bambino Gesu - Dipartimento di Onco-Ematologia e Terapia Cellulare e Genica — Rome
  • St.Mary's Hospital - Haematology Dept — London

Tennessee

  • St. Jude Children's Research Hospital — Memphis
  • TriStar Medical Group Children's Specialists - Pediatric Oncology — Nashville

North Carolina

  • Levine Children's Hospital - Hematology — Charlotte

Pennsylvania

  • The Children's Hospital of Philadelphia - Hematology — Philadelphia

Trial Details

FieldValue
Enrollment Target 13 participants
Start Date 2022-05-02
Est. Completion 2026-05-31
Phase Phase 3

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Full Details on ClinicalTrials.gov ↗

What the Registry Record Tells You About NCT05329649

The ClinicalTrials.gov registry entry for NCT05329649 describes a study currently listed as active not recruiting. It is categorized as Phase 3, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 13 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Vertex Pharmaceuticals Incorporated, which has 82 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.

The record links to 5 conditions, with Sickle Cell Disease appearing as the primary indexed condition, and to 1 intervention — of which CTX001 is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.

Geographic footprint matters for practical reasons: NCT05329649 reports 7 study locations spanning 4 distinct geographic areas — top geographies include Other, Tennessee, North Carolina. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.

Frequently Asked Questions

What is clinical trial NCT05329649 about?

NCT05329649 is a clinical study titled "Evaluation of Safety and Efficacy of CTX001 in Pediatric Participants With Severe Sickle Cell Disease (SCD)". This is a single-dose, open-label study in pediatric participants with severe SCD and hydroxyurea (HU) failure or intolerance. The study will evaluate the safety and efficacy of autologous CRISPR-Cas9 modified CD34+ human hematopoietic stem and progenitor cells (hHSPCs) (CTX001).

What is the current status of trial NCT05329649?

This trial is currently active not recruiting. It is a Phase 3 study. The enrollment target is 13 participants. The study started on 2022-05-02. Estimated completion is 2026-05-31.

What conditions does trial NCT05329649 study?

This clinical trial studies the following conditions: Sickle Cell Disease, Hemoglobinopathies, Hematological Diseases, Hydroxyurea Failure, Hydroxyurea Intolerance. These conditions were identified from the trial registry and reflect the primary focus areas of the research.

What interventions are being tested in trial NCT05329649?

The interventions under investigation include: CTX001 (BIOLOGICAL). Each intervention is being evaluated for safety and efficacy as part of this clinical study.

Who is sponsoring clinical trial NCT05329649?

This trial is sponsored by Vertex Pharmaceuticals Incorporated, which has 82 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.

Where is trial NCT05329649 being conducted?

This trial has 7 study locations across North Carolina, Pennsylvania, Tennessee. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial