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FANCONI ANEMIAPhase 1RAFHASNCT00586274

Use of Rft5-Dga to Deplete Alloreactive Cells for Pts With Fanconi Anemia After Haploidentical SCT

A Phase 1 study testing CD34 selected haploidentical PBSCT, Fludarabine and T cell infusion in people with FANCONI ANEMIA, run by Baylor College of Medicine at 2 sites 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

While stem cell transplantation has proven an effective means of treating a wide variety of diseases involving hematopoietic stem cells and their progeny, a shortage of donors has proved a major impediment to the widest application of the approach. Until recently, only MHC identical donors could be used with safety. Read more about this study

Who is it for?
Ages Up to 64 yearsHealthy volunteers can take part
Conditions the study is for
FANCONI ANEMIA
What is being tested?
CD34 selected haploidentical PBSCT, Fludarabine and T cell infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
2 sitesUnited States
Study dates
Mar 2002to Jul 2009
Phase
Phase 1
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 64 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • At the time of eligibility for infusion of allodepleted T -cells patients must satisfy the criteria below:
  • Patients with Fanconi anemia of all ages with severe aplasia (as evidenced by hypocellular bone marrow) who lack a suitable conventional related (i.e. 5/6 or 6/6 related) or 5/6 or 6/6 unrelated donor with at least 2 out of 3 of the following: a) ANC < 500/mm3, b) reticulocytes < 1% c) platelets < 50,000/mm3
  • Diagnosis of Fanconi anemia confirmed by studies of peripheral blood or bone marrow sensitivity to mitomycinC or DEB prior to stem cell transplant. Have received a related haploidentical CD34-selected peripheral blood stem cell transplant with evidence of a full or partial hematopoietic donor chimerism (> 50%) in the peripheral blood.

Who cannot join

  • Patients with a life expectancy (< 6 weeks) limited by diseases other than FA
  • Patients with active GVHD > / = Grade II
  • Patients with severe renal disease (i.e. creatinine greater than 3 X normal for age)
  • Patients with severe hepatic disease (direct bilirubin greater than 3ug/dl or SGPT greater than 500ug/dl)
  • Patients with a severe intercurrent infection
  • Lansky scale < 60 or Karnofsky < 60

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Texas Children's Hospital

    Houston, Texas, 77030

  • The Methodist Hospital

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: A Phase I Study Evaluating The Use Of Rft5-Dga To Deplete Alloreactive Cells For Patients With Fanconi Anemia After Haploidentical Stem Cell Transplantation

While stem cell transplantation has proven an effective means of treating a wide variety of diseases involving hematopoietic stem cells and their progeny, a shortage of donors has proved a major impediment to the widest application of the approach. Until recently, only MHC identical donors could be used with safety. Such donors were originally siblings or other closely related family members. Over the past decade, the growth of allogeneic donor panels has allowed transplantation with stem cells obtained from a volunteer donor panel.

While it is now possible to obtain HLA identical unrelated donor stem cells for approximately 75% of individuals of Northern European backgrounds, the situation for most other ethnic groups is much less satisfactory. Even when a matched donor can be found, the elapsed time between commencing the search and collecting the stem cells usually exceeds three months, a delay that may doom many of the neediest patients. Hence there has been considerable interest in making use of HLA haploidentical family donors. Most individuals have a first-degree relative who would be suitable for such protocols. Fanconi anemia (FA) is an autosomal recessive disorder characterized by the development of progressive aplastic anemia usually evident by about age seven years and often associated with various diverse congenital anomalies such as short stature, microcephaly, radial anomalies, horseshoe kidney, and cafe au lait spots.

This study will determine the number of donor lymphocytes that can be given to recipients of haploidentical stem cell transplants with Fanconi anemia after depletion of recipient-reactive T lymphocytes by ex-vivo treatment with a fixed dose of RFT5-dgA immunotoxin, and will result in a rate of Grade III/IV GVHD of < / = 25%.

Read the detailed description

Patients will have received a haplo-identical stem cell transplant on our on-going study "CD45 (YTH-24 and YTH-54) and CD52 (Campath 1H) Monoclonal Antibody Conditioning Regimen for Allogeneic Donor Stem Cell Transplantation of Patients with Fanconi Anemia" (H-9938 IND# 7233) and will become eligible to receive allodepleted T Cells following engraftment. What follows is a summary of the treatment plan including initial transplant phase as well as generation and infusion of allodepleted T cells.

Preparative Regimen for Patients with Fanconi Anemia:

The study will be open to patients who received a haploidentical PBSCT on the MAFIA protocol and for patients who failed to engraft and receive a second haploidentical transplants with alternate conditioning consisting of ATG, Fludarabine, TBI (450cGY single dose) and Cytoxan.

In Outline MAFIA conditioning (primary conditioning regimen)

Day 8 Campath 1H 10mg iv over 4hr Fludarabine 30 mg/m2 7 Campath 1H 10mg iv over 4hr Fludarabine 30 mg/m2 6 Campath 1H 10mg iv over 4hr Fludarabine 30 mg/m2 5 YTH 24/54 400ug/kg over 6 hr Fludarabine 30 mg/m2

  • 4 YTH 24/54 400ug/kg over 6 hr Fludarabine 30 mg/m2
  • 3 YTH 24/54 400ug/kg over 6 hr
  • 2 YTH 24/54 400ug/kg over 6 hr
  • 1 Rest
  • 0 CD34-selected PBSC infusion

Stem Cell Infusion: One day after the completion of pretransplant conditioning therapy (day 0), CD34+ cells will be infused through a central venous catheter as outlined in CAGT SOPs.

This study will begin with a dose of T cells known not to cause GvHD even in haploidentical recipients, even when the T cells administered have not first been allodepleted. Dose escalation will follow a traditional up and down method, but as results become available they will be used to determine subsequent dose levels by the continual reassessment method. Initially, 2 patients will be entered beginning at dose level 1. Each and every patient will receive up to three additional injections of T cells at the same dose, at monthly intervals, provided there is no evidence of grade 2 or higher GVHD, until total T cell numbers are > 1000/ul.

Dose level -1 (1 x 10^3 T cells/Kg); Dose level 1 (1 x 10^4 T cells/Kg); Dose level 2 (1 x 10^5 T cells/Kg); Dose level 3 (1 x 10^6 T cells/Kg); Dose level 4 (5 x 10^6 T cells/Kg)

Conditions
FANCONI ANEMIA
Being tested
CD34 selected haploidentical PBSCT, Fludarabine, T cell infusion, Campath 1h, anti-CD45
Keywords
Stem Cell Transplant, Anemia, Fanconi
Medical subject headings
Fanconi Anemia, Anemia

What participants receive

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

  • CD34 selected haploidentical PBSCTProcedure or surgery

    Infusion of CD34 selected haploidentical PBSCT

  • FludarabineDrug

    day -8 through day -4 Fludarabine 30 mg/m^2

  • T cell infusionBiological

    At least 30 days after the stem cell infusion, patients will be dosed with T cells. This study will begin with a dose of T cells known not to cause GvHD even in haploidentical recipients, even when the T cells administered have not first been allodepleted. Dose escalation will follow a traditional up and down method, but as results become available they will be used to determine subsequent dose levels by the continual reassessment method. Initially, 2 patients will be entered beginning at dose level 1. Each and every patient will receive up to three additional injections of T cells at the same dose, at monthly intervals, provided there is no evidence of grade 2 or higher GVHD, until total T cell numbers are > 1000/ul.

    Dose level -1 (1 x 10^3 T cells/Kg); Dose level 1 (1 x 10^4 T cells/Kg); Dose level 2 (1 x 10^5 T cells/Kg); Dose level 3 (1 x 10^6 T cells/Kg); Dose level 4 (5 x 10^6 T cells/Kg)

  • Campath 1hBiological

    10 mg iv over 4 hours day-8 through day-6

  • anti-CD45Biological

    anti-CD45 400 ug/kg over 6 hours day -5 through day -2

Study groups in NCT00586274
Study groupRoleWhat they receive
CD34 selected haploidentical PBSCTExperimentalCD34 selected haploidentical PBSCT
Receives: Procedure: CD34 selected haploidentical PBSCT; Drug: Fludarabine; Biological: T cell infusion; Biological: Campath 1h; Biological: anti-CD45

What is being measured

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

  1. Determine # of donor lymphocytes that can be given to recipients of haplo-SCT with FA after depletion of recipient-reactive T lymphocytes by ex-vivo tx with a fixed dose of RFT5-dgA immunotoxin, and will result in Grade III/IV GVHD of < / = 25%.

    Measured: 1 yr

Secondary outcomes (2)
  1. To analyze immune reconstitution in these patients.

    Measured: 1 yr

  2. To measure their overall and disease free survival, at 100 days and at 1 year after transplant.

    Measured: 1 yr

Timeline

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

  1. First posted4 Jan 2008 (estimated)
  2. Study startMar 2002
  3. Primary completionJul 2009
  4. Study completionJul 2009

Why it stopped: Poor accrual

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00586274
Sponsor's protocol ID
H-11428
Acronym
RAFHAS
Status last verified
Mar 2014
First submitted
21 Dec 2007
Last updated
4 Mar 2014
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CD34 selected haploidentical PBSCT, Fludarabine and T cell infusion in people with FANCONI ANEMIA, run by Baylor College of Medicine at 2 sites 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 3 inclusion and 6 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 4 Mar 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 was stopped early (reason given: Poor accrual). Results are not available in the source record.

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?

Determine # of donor lymphocytes that can be given to recipients of haplo-SCT with FA after depletion of recipient-reactive T lymphocytes by ex-vivo tx with a fixed dose of RFT5-dgA immunotoxin, and will result in Grade III/IV GVHD of < / = 25%. (time frame: 1 yr). 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 4 Mar 2014.

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