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Severe Combined Immunodeficiency DiseasePhase 1/2MASCINCT00579137

Allogeneic SCT Of Pts With SCID And Other Primary Immunodeficiency Disorders

A Phase 1/2 study testing Campath -1H, Fludarabine and Anti-CD45 in people with Severe Combined Immunodeficiency Disease and Severe Primary Immunodeficiency Disorder, run by Baylor College of Medicine 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

This study is to discover whether children with severe combined immunodeficiency disease (SCID) or other primary immunodeficiency disorder (PID) for which no satisfactory treatment other than stem cell transplantation (SCT) exists can be safely and effectively transplanted from HLA mismatched (up to one haplotype)… Read more about this study

Who is it for?
Any age
What is being tested?
Campath -1H, Fludarabine and Anti-CD45
Could I receive a placebo?
No, everyone receives an active treatment
How many people
3 participants
Where
1 siteUnited States
Study dates
Oct 2007to Oct 2009
Phase
Phase 1/2
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients with a diagnosis of: Severe combined immunodeficiency disease
  • This includes patients whose SCID is characterized by gene specific mutations as well as patients with clinically severe combined immunodeficiency without a defined genetic cause in which the diagnosis will be determined by a combination of clinical course with lymphocyte quantification and function assays.
  • OR
  • Severe primary immunodeficiency disorder, including undefined T cell deficiency disorder, Wiskott-Aldrich syndrome, and other severe immunodeficiencies for which satisfactory conventional therapy does not exist.
  • Availability of an HLA mismatched (up to one haplotype) family member or an HLA matched or mismatched (up to one antigen) unrelated donor.
  • Creatinine < 2.5 x normal for age.
  • Life expectancy greater than 6 weeks
  • Lansky/Karnofsky greater than or equal to 70%

Who cannot join

  • Patients with an HLA matched related donor
  • Patients with symptomatic cardiac disease, or evidence of significant cardiac disease by echocardiogram (i.e., shortening fraction less than 25%)
  • Patients with known allergy to rat serum products
  • Patients with a severe infection that on evaluation by the Principal Investigator precludes ablative chemotherapy or successful transplantation
  • HIV positive
  • Pregnant

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Texas Children's Hospital

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: CD45 and Alemtuzumab Monoclonal Antibody Conditioning Regimen For Allogeneic Donor Stem Cell Transplantation Of Patients With Severe Combined Immunodeficiency Disease (SCID) And Other Primary Immunodeficiency Disorders

This study is to discover whether children with severe combined immunodeficiency disease (SCID) or other primary immunodeficiency disorder (PID) for which no satisfactory treatment other than stem cell transplantation (SCT) exists can be safely and effectively transplanted from HLA mismatched (up to one haplotype) related donors or unrelated matched or mismatched (up to one antigen) donors, when leukocytolytic monoclonal antibodies (MAb) and Fludarabine are the sole conditioning agents. Three monoclonal antibodies will be used in combination. Two of them are rat IgG1 (immunoglobulin G1) antibodies directed against two contiguous epitopes on the CD45 (common leucocyte) antigen. They have been safely administered as part of the conditioning regimen for 12 patients receiving allografts (HLA matched and mismatched) at this center. They produce a transient depletion of >90% circulating leucocytes. The third MAb is Campath 1H, a humanized rat anti-CD52 MAb. Campath 1H, Alemtuzumab, has been licensed to treat B-cell chronic lymphocytic leukemia (B-CLL) and more recently has been safely given at this and other centers as part of a sub-ablative conditioning regimen to patients with malignant disease. Because these MAb produce both profound immunosuppression and significant, though transient, myelodestruction we believe they may be useful as the sole conditioning regimen in patients with SCID, in whom the use of conventional chemotherapeutic agents for conditioning may produce or aggravate unacceptable and even lethal short term toxicity. We anticipate MAb mediated subablative conditioning will permit engraftment in a high percentage of these patients with little or no immediate or long term toxicity. Campath IH persists in vivo for several days after administration and so will be present over the transplant period to deplete donor T cells as partial GvHD prophylaxis. Additional Graft versus Host Disease (GvHD) prophylaxis may be provided by administration of FK506.

Read the detailed description

Donor Stem Cell Processing for Mismatched Donors: Harvested peripheral blood stem cells will be enriched for CD34 cells using the CliniMACS CD34 Reagent system, according to Center for Cell and Gene Therapy (CAGT) SOPs.

Stem Cell Transplant Conditioning

Campath-1H will be given as 3 daily intravenous infusions and will be followed by Anti-CD45 which will be given as four daily intravenous infusions that will be completed two days prior to stem cell infusion. Diphenydramine will be administered i.v. q4h during the period of the course of the Campath and Anti-CD45 infusions.

Day

8 Campath 1H as per CAGT SOP Fludarabine 10 kg or less: 1 mg/kg; > 10 kg: 30 mg/m2

7 Campath 1H as per CAGT SOP Fludarabine 10 kg or less: 1 mg/kg; > 10 kg: 30 mg/m2

6 Campath 1H as per CAGT SOP Fludarabine 10 kg or less: 1 mg/kg; > 10 kg: 30 mg/m2

5 YTH 24/54 400ug/kg over 6 hr Fludarabine 10 kg or less: 1 mg/kg; > 10 kg: 30 mg/m2

4 YTH 24/54 400ug/kg over 6 hr Fludarabine 10 kg or less: 1 mg/kg; > 10 kg: 30 mg/m2

3 YTH 24/54 400ug/kg over 6 hr

2 YTH 24/54 400ug/kg over 6 hr

1 rest

0 Stem Cell Infusion

Campath 1H Infusion- Campath dose is weight based: for patients less than 15 killograms (kg) administer Campath 3 mg; for patients >15 kg to 30 kg administer Campath 5 mg; for patients > 30 kg administer Campath 10 mg. Campath will be dosed and administered as per CAGT SOP.

Anti-CD45- Infusion Anti-CD45 infusion will be administered according to CAGT SOPs. 3 ml of heparinized blood will be drawn 48 hr post Anti-CD45 to evaluate for free Anti-CD45 levels in the plasma. This estimation will be used to determine whether treatment with irradiated leukocytes is required before the bone marrow is infused.

GVHD Prophylaxis- GVHD prophylaxis will be achieved through positive selection for CD34 resulting in > 3 log T cell depletion. Previous reports have indicated that there is a low frequency of severe (Grade II/IV) GVHD after haploidentical transplants if recipients receive stem cell populations containing <5 x 10 CD3 positive T cells. We hope to achieve such levels with our CD34 enrichment protocol. However, pharmacologic prophylaxis will be added if the CD34 selected product contains more than 5 x 10 CD3+ve T cells/kg recipient weight. In addition, Campath 1H persists in the recipient circulation through the immediate transplant period and will contribute anti-GVHD activity, in vivo. Patients who develop acute or chronic GVHD will be managed according to CAGT SOPs.

Being tested
Campath -1H, Fludarabine, Anti-CD45, Stem cell infusion
Keywords
Severe Combined Immunodeficiency Disease, Severe Primary Immunodeficiency Disorder, Undefined T cell Deficiency Disorder, Wiskott-Aldrick Syndrome, Allogeneic stem cell transplant, Fludarabine, monoclonal antibodies
Medical subject headings
X-Linked Combined Immunodeficiency Diseases, Primary Immunodeficiency Diseases

What participants receive

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

  • Campath -1HBiological

    Also called Alemtuzumab

    Given intravenous on Days -8,-7, and -6

    Campath dose is weight based: for patients less than 15 kg the dose is 3 mg; for patients >15 kg to 30 kg the dose 5 mg; for patients > 30 kg the dose is 10 mg

  • FludarabineDrug

    Also called Fludara

    Given intravenous on Days -8,-7,-6,-5, and -4

    Dose is 30 mg/m2

  • Anti-CD45Biological

    Given intravenous over 6 hours on Days -5,-4,-3, and -2

    Dose is 400 microgram/kg

  • Stem cell infusionProcedure or surgery

    stem cells are infused on day 0

Study groups in NCT00579137
Study groupRoleWhat they receive
Participants With SCID or Primary Immunodeficiency DisorderExperimentalall patient will receive an allogeneic transplant with the following conditioning regimen Campath -1H, Fludarabine, Anti-CD45
Receives: Biological: Campath -1H; Drug: Fludarabine; Biological: Anti-CD45; Procedure: Stem cell infusion

What is being measured

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

  1. Number of Patients With Donor Engraftment

    Measured: 100 Days

Secondary outcomes (3)
  1. Patients Alive at 1 Year

    Measured: 1 Year

  2. Number of Patients With Grade III or IV Toxicity

    Measured: 100 days

  3. Number of Patients With Grade III to IV Acute GVHD

    Measured: 100 days

Timeline

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

  1. First posted21 Dec 2007 (estimated)
  2. Study startOct 2007
  3. Primary completionOct 2009
  4. Study completionOct 2009

Why it stopped: slow 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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
3 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00579137
Sponsor's protocol ID
21123-MASCI
Acronym
MASCI
Status last verified
Jun 2013
First submitted
19 Dec 2007
Last updated
2 Jul 2013
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Campath -1H, Fludarabine and Anti-CD45 in people with Severe Combined Immunodeficiency Disease and Severe Primary Immunodeficiency Disorder, run by Baylor College of Medicine 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 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 2 Jul 2013. 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 combined 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.

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 2 Jul 2013). 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?

Number of Patients With Donor Engraftment (time frame: 100 Days). 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 2 Jul 2013.

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