AzTrials
AzTrials

Blood DiseasePhase 2NCT00029393

Induction of Stable Chimerism for Sickle Cell Anemia

A Phase 2 study testing Hematopoietic Stem Cell Transplantation and Immunosuppression in people with Blood Disease and Hematopoietic Stem Cell Transplantation, run by National Heart, Lung, and Blood Institute (NHLBI).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

To investigate a modified hematopoeitic cell transplantation (HCT) procedure for sickle cell disease that significantly reduces the toxicity of HCT, yet retains its therapeutic benefit. Read more about this study

Who is it for?
Ages Up to 100 years
What is being tested?
Hematopoietic Stem Cell Transplantation and Immunosuppression
Type of treatment
Surgery or procedure
How many people
Not given
Where
No sites listed yet
Study dates
Aug 2001to Jul 2007
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 100 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

No eligibility criteria

About this study

To investigate a modified hematopoeitic cell transplantation (HCT) procedure for sickle cell disease that significantly reduces the toxicity of HCT, yet retains its therapeutic benefit.

Read the detailed description

BACKGROUND:

Hematopoietic cell transplantation (HCT) has curative potential for individuals with sickle cell disease. While the results of conventional HCT have been good, this treatment carries risks of significant short- term and longterm toxicities. For this reason, HCT has been reserved for children who have experienced severe symptoms that predict a poor outcome. Of interest, some patients developed stable donor-host hematopoietic chimerism after conventional HCT. Due to a natural enrichment of donor erythrocytes in the blood, those who developed stable chimerism had a significant clinical benefit, even when there was a minority of donor cells. These observations have paralleled efforts to develop less-toxic, non-myeloablative preparative regiments for transplantation, proved first in a canine model of transplantation, and subsequently translated successfully in a clinical trial for older adults with hematological malignancies.

DESIGN NARRATIVE:

Multicenter open-label phase I-II study in 30 children with sickle cell disease that combines a non-myeloablative pre-transplant hematopoietic cell transplantation (HCT) therapy with modulated post-grafting immunosuppression to control host-versus-graft and graft-versus-host reactions. The approach relies on the ability to establish and maintain donor-host chimerism. The primary study endpoint is stable donor cell engraftment; secondary endpoints measure the impact of therapy on sickle cell-related symptoms and end-organ damage (disease-free survival, patient survival, graft-versus-host disease, complications etc). The trial will be conducted within the existing network of Comprehensive Sickle Cell Centers, and will be centrally coordinated by the Sickle Cell Coordinating Center.

Being tested
Hematopoietic Stem Cell Transplantation, Immunosuppression
Medical subject headings
Hematologic Diseases, Anemia, Sickle Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Hematopoietic Stem Cell TransplantationProcedure or surgery

  • ImmunosuppressionDrug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jan 2002 (estimated)
  2. Study startAug 2001
  3. Primary completionJul 2007
  4. Study completionJul 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Masking
None (open label)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00029393
Sponsor's protocol ID
142
Other IDs
U01HL068091
Status last verified
Jan 2008
First submitted
10 Jan 2002
Last updated
29 Jul 2016
Results posted
No

Publications

  • Walters MC, Patience M, Leisenring W, Rogers ZR, Aquino VM, Buchanan GR, Roberts IA, Yeager AM, Hsu L, Adamkiewicz T, Kurtzberg J, Vichinsky E, Storer B, Storb R, Sullivan KM; Multicenter Investigation of Bone Marrow Transplantation for Sickle Cell Disease. Stable mixed hematopoietic chimerism after bone marrow transplantation for sickle cell anemia. Biol Blood Marrow Transplant. 2001;7(12):665-73. doi: 10.1053/bbmt.2001.v7.pm11787529.

    PubMed 11787529
  • Atkins RC, Walters MC. Haematopoietic cell transplantation in the treatment of sickle cell disease. Expert Opin Biol Ther. 2003 Dec;3(8):1215-24. doi: 10.1517/14712598.3.8.1215.

    PubMed 14640947
  • Iannone R, Casella JF, Fuchs EJ, Chen AR, Jones RJ, Woolfrey A, Amylon M, Sullivan KM, Storb RF, Walters MC. Results of minimally toxic nonmyeloablative transplantation in patients with sickle cell anemia and beta-thalassemia. Biol Blood Marrow Transplant. 2003 Aug;9(8):519-28. doi: 10.1016/s1083-8791(03)00192-7.

    PubMed 12931121
  • Horan JT, Liesveld JL, Fenton P, Blumberg N, Walters MC. Hematopoietic stem cell transplantation for multiply transfused patients with sickle cell disease and thalassemia after low-dose total body irradiation, fludarabine, and rabbit anti-thymocyte globulin. Bone Marrow Transplant. 2005 Jan;35(2):171-7. doi: 10.1038/sj.bmt.1704745.

    PubMed 15531901

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Hematopoietic Stem Cell Transplantation and Immunosuppression in people with Blood Disease and Hematopoietic Stem Cell Transplantation, run by National Heart, Lung, and Blood Institute (NHLBI).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00029393, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jul 2016.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in