CClinicalTrials.gg
TerminatedNCT04205435Updated Oct 13, 2022

β-globin Restored Autologous HSC in β-thalassemia Major Patients

A Phase 1/2 interventional study of β-globin restored autologous HSC in β-thalassemia Major, sponsored by Bioray Laboratories. Terminated at 1 site in China. Open to participants aged 5 Years to 15 Years. Per ClinicalTrials.gov, last updated 2022-10-13.

Sponsored by Bioray Laboratories · Phase 1/2, Interventional, and Treatment

Why this study was terminated
Sponsor decision
Phase
Phase 1/2
Study type
Interventional
Enrollment
2
Allocation
Not applicable
Ages
5 Years to 15 Years
Sex
All
01

Study summary

This is a single center, single arm, open-label study to determine the safety and efficacy of β-globin restored autologous hematopoietic stem cells in β- thalassemia major patients with CVS-654 mutation.

Read the detailed description

β-globin restored autologous hematopoietic stem cells will be manufactured using CRISPR/Cas9 gene editing system. Subject participation for this study will be 1 year. Subjects who enroll in this study will be asked to participate in a subsequent long-term follow up study that will monitor the safety and efficacy of the treatment they receive for up to 15 years post-transplant.

02

Conditions studied

  • β-thalassemia Major
03

In context

Thalassemia

416 studies on the registry are indexed under Thalassemia; 67 are open to participants now.

This study's enrollment of 2 is below the median of 37 across 277 interventional studies indexed under Thalassemia.

Browse Thalassemia studies →

Lead sponsor

Bioray Laboratories is the lead sponsor of 24 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
5 Years to 15 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 5-15 years old. Clinically diagnosed as β-thalassemia major with IVS-654 gene mutation phenotype;
  • Subjects or at least one legal guardian/agent understand and voluntarily sign informed consent.
  • Subjects with no affection with EBV, HIV, CMV, TP, HAV, HBV and HCV.
  • Subjects body condition eligible for autologous stem cell transplant.

Exclusion criteria

Exclusion Criteria:

  • Subjects acceptable for allogeneic hematopoietic stem cell transplantation and have an available fully matched related donor.

Active bacterial, viral, or fungal infection. Treated with erythropoietin prior 3 months. Immediate family member with any known hematological tumor. Subjects with severe psychiatric disorders to be unable to cooperate. Recently diagnosed as malaria. History of complex autoimmune disease. Persistent aspartate transaminase (AST), alanine transaminase (ALT), or total bilirubin value >3 x the upper limit of normal (ULN).

Subjects with severe heart, lung and kidney diseases. With serious iron overload. Any other condition that would render the subject ineligible for HSCT, as determined by the attending transplant physician or Investigator.

Subjects who are receiving treatment from another clinical study, or have received another gene therapy.

Subjects or guardians had resisted the guidance of the attending doctor. Subjects whom the investigators do not consider appropriate for participating in this clinical study.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
2 participants (actual)

Study arms

  • Experimental
    β-globin restored autologous HSC

    each subject will accept one dose of β-globin restored autologous hematopoietic stem cells

    Biological: β-globin restored autologous HSC

Interventions

  • Biologicalβ-globin restored autologous HSC

    gene edited autologous hematopoietic stem cells with β-globin restoration

06

What researchers measure

Primary outcomes

  1. Proportion of subjects with engraftment;

    Time frame: up to 42 days post transplant

  2. Incidence and severity of adverse events as a measure of safety and tolerability. Adverse events assessed according to NCI-CTCAE v5.0 criteria

    Time frame: up to 60 days post transplant

Secondary outcomes

  1. Proportion of subjects achieving transfusion independence;

    Time frame: up to 24 months post transplant

  2. Proportion of subjects with a > = 50% reduced annualized volume of packed RBC transfusions.

    Time frame: up to 24 months post transplant

07

Study locations

1 site
  • Shanghai Bioraylaboratory Inc
    Shanghai, Shanghai 200241, China
08

References and documents

Publications

  • Brusson M, Miccio A. Genome editing approaches to beta-hemoglobinopathies. Prog Mol Biol Transl Sci. 2021;182:153-183. doi: 10.1016/bs.pmbts.2021.01.025. Epub 2021 Mar 1. PubMed 34175041 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 13, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04205435
Lead sponsor
Bioray Laboratories
Collaborators
The 923rd Hospital of Joint Logistics Support Force of People's Liberation Army
Responsible party
Sponsor
First posted
Dec 19, 2019
Start date
Nov 1, 2021
Primary completion
Jun 1, 2022
Completion
Jul 25, 2022
Last update
Oct 13, 2022

Study contacts

Xinhua Zhang, Prof
principal investigator · The 923rd Hospital of Joint Logistics Support Force of People's Liberation Army

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Sep 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion