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Sickle Cell DiseasePhase 2NCT01279616

A Reduced Toxicity Allogeneic Unrelated Donor Stem Cell Transplantation (SCT) for Severe Sickle Cell Disease

A Phase 2 study testing Fludarabine monophosphate, Rituximab and Busulfan in people with Sickle Cell Disease, run by Nationwide Children's Hospital at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Majority of patients who are eligible for allogeneic HSCT for cure of severe sickle cell disease lack a matched family donor. This study aims for cure of sickle cell disease by performing unrelated donor (outside family) allogeneic HSCT. Donors or unrelated cord blood units will be selected from the NMDP database. Read more about this study

Who is it for?
Ages Up to 21 years
Conditions the study is for
Sickle Cell Disease
What is being tested?
Fludarabine monophosphate, Rituximab and Busulfan
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteUnited States
Study dates
Sep 2010to Jan 2015
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 21 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients must have sickle cell disease (genotype Hb SS or Sß° thalassemia), AND must have 1 or more of the following clinical complications related to Sickle cell disease:
  • A clinically significant neurologic event (stroke) or any neurologic defect lasting >24 hours, that is accompanied by an infarct on cerebral MRI.
  • Minimum of two episodes of acute chest syndrome (defined as new pulmonary alveolar consolidation involving at least 1 complete lung segment associated with acute symptoms including fever, chest pain, tachypnea, wheezing or cough) despite adequate supportive care measures (example: asthma therapy, hydroxyurea).
  • History of severe pain episodes defined as 3 or more severe pain events per year in the 2 years prior to enrollment despite adequate supportive care measures and hydroxyurea trial (i.e. Hydroxyurea non-responders). Pain may occur in typical sites associated with vaso-occlusive painful events and cannot be explained by causes other than vaso-occlusion mediated by sickle cell disease.
  • Recurrent priapism.
  • Osteo-necrosis of multiple joints
  • Evidence of Pulmonary Hypertension as evidenced by Tricuspid Regurgitation jet velocity (TRV) > 2.5 m/s on Echocardiogram.
  • Red cell allo-immunization (≥ 2 antibodies) during long term transfusion therapy.

Who cannot join

  • Invasive bacterial, viral or fungal infections within 1 month prior to starting conditioning therapy.
  • Female patients who are Pregnant (Beta HCG +) or breastfeeding.
  • HIV positive patients.
  • Patients with HLA-matched related family donors are not eligible for this study.
  • Prior myeloablative allogeneic HCT.
  • Patients on chronic transfusion therapy for ≥ 1 year with evidence of cirrhosis of liver on biopsy
  • Any significant concurrent disease, illness, severe cognitive delay or psychiatric disorder that would compromise patient safety or compliance, interfere with consent, study participation, follow up, or interpretation of study results.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Nationwide Children's Hospital

    Columbus, Ohio, 43205

Other trials in United States

About this study

Official title: A Pilot Study of an Immunosuppressive and Myeloablative Preparative Regimen for Allogeneic Unrelated Donor Hematopoietic Stem Cell Transplantation (HSCT) for Severe Sickle Cell Disease

Majority of patients who are eligible for allogeneic HSCT for cure of severe sickle cell disease lack a matched family donor. This study aims for cure of sickle cell disease by performing unrelated donor (outside family) allogeneic HSCT. Donors or unrelated cord blood units will be selected from the NMDP database. It is designed to estimate the safety of a novel reduced toxicity, yet an immunosuppressive and myeloablative preparative regimen. This is meant for patients <21 years old who have severe complications from sickle cell and do not have matched sibling donors in the family to undergo stem cell transplant. Patients will undergo transplant using unrelated donor stem cells after receiving the protocol therapy. They will be followed for 1 year to monitor for engraftment of donor cells and complications like graft versus host disease (GVHD), infections and death.

Read the detailed description

The primary goal of this pilot study is to determine the safety and feasibility of the preparative regimen for HSCT using a novel reduced toxicity regimen for stem cell transplant with unrelated donors. Analysis will be geared to confirm if the study regimen, followed by an appropriately HLA-matched unrelated donor (MUD)or unrelated cord blood HSCT, can lead to durable donor engraftment with reasonable toxicity, inhibiting sickle erythropoiesis and limiting disease related organ toxicity in patients who are at high risk for morbidity and mortality associated with sickle cell disease (SCD).

Being tested
Fludarabine monophosphate, Rituximab, Busulfan, ATG, Cyclophosphamide
Keywords
sickle cell, stem cell transplant
Medical subject headings
Anemia, Sickle Cell

What participants receive

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

  • Fludarabine monophosphateDrug

    180 mg/m2 over 6 days.

  • RituximabDrug

    Also called Rituxan

    375 mg/m2 on day -13 and day -3

  • BusulfanDrug

    Also called busulfex

    AUC 1000-1200 microM.mt

  • ATGDrug

    Also called Thymoglobulin

    2.5 mg/kg for 3 days

  • CyclophosphamideDrug

    Also called Cytoxan

    50 mg/kg on day +3

  • Mycophenolate mofetilDrug

    Also called MMF, Cell-cept.

    15 mg/kg q 8 hours

  • TacrolimusDrug

    Also called FK-506

    0.03 mg/kg /d

Study groups in NCT01279616
Study groupRoleWhat they receive
Hematopoietic Stem Cell TransplantExperimentalStem cell infusion on Day 0.
Receives: Drug: Fludarabine monophosphate; Drug: Rituximab; Drug: Busulfan; Drug: ATG; Drug: Cyclophosphamide; Drug: Mycophenolate mofetil; Drug: Tacrolimus

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Event-free Survival

    Event-free survival

    Measured: 1 year

Timeline

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

  1. First posted19 Jan 2011 (estimated)
  2. Study startSep 2010
  3. Primary completionJan 2015
  4. Study completionJan 2015

Why it stopped: PI moving to a different institution.

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
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01279616
Sponsor's protocol ID
09-00383
Status last verified
Apr 2019
First submitted
18 Jan 2011
Last updated
3 Apr 2019
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Fludarabine monophosphate, Rituximab and Busulfan in people with Sickle Cell Disease, run by Nationwide Children's Hospital at 1 site in United States.

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

Who may be eligible to take part?

The sponsor lists 8 inclusion and 7 exclusion criteria. 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: stopped early, as of the sponsor's last update on 3 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 3 Apr 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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.

What does the primary outcome measure?

Event-free Survival (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 3 Apr 2019.

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