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SCID Bu/Flu/ATG Study With T Cell Depletion
Phase I/II Trial of Hematopoietic Stem Cell Transplant (HSCT) for Children With Severe Combined Immune Deficiency (SCID) and Without an HLA-Matched Sibling Donor
Studie Overzicht
Toestand
Gedetailleerde beschrijving
The study is being conducted to assess the following:
- overall survival
- event-free survival (events are defined as: death,non-engraftment/2nd transplant, immune reconstitution failure)
- acute toxicity of the conditioning regimen
- engraftment frequency immune reconstitution frequency and tempo acute and chronic graft-versus-host disease (GVHD), frequency and severity.
The outcome from this protocol will be compared to the retrospective cohort consisting of all patients who have undergone haplo-identical HSCT for SCID at CHLA from 1984-2006 based on the assessment of the above-listed endpoints.
The CliniMACS device will be used for CD34+ selection in place of the Isolex 300i. The CliniMACS CD34 Reagent System is an investigational medical device that has not yet been approved by the FDA. This device is used in vitro to select and enrich specific cell populations. When using the CliniMACS CD34 Reagent, the system selects CD34+ cells from heterogenous hematological cell populations for transplantation in cases where this is clinically indicated.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 2
- Fase 1
Contacten en locaties
Studie Locaties
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California
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Los Angeles, California, Verenigde Staten, 90027
- Children's Hospital Los Angeles
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- All patients with SCID who lack a histocompatible sibling or HLA-matched related donor will be considered as candidates for this study protocol.
Eligible patients must have adequate physical function to tolerate the chemotherapy conditioning regimen and the HSCT, as measure by:
- Renal: creatinine clearance or GFR ≥50 ml/min/1.73m2, and not requiring dialysis
- Pulmonary: Because patients with SCID frequently present with infectious pneumonia causing ventilatory failure, patients will be considered for enrollment in the study even if respiratory failure requiring mechanical ventilatory support is present. In patients recently diagnosed with pneumonia, efforts to stabilize the respiratory status will be made prior to enrollment in the study.
- Infectious disease status. The presence of infection per se will not be a reason for exclusion from the study. Patients with SCID are frequently infected with both routine pathogens as well as opportunistic infections. Antibiotic, antifungal and antiviral prophylaxis and therapy will be instituted as clinically indicated. Despite the use of antimicrobial therapy, the ability to control infections will not be achieved unless HSCT is performed. Therefore, subjects may be enrolled in the study, even though infection is present, because control of infection may depend on engraftment of a donor immune system.
- Patients will be 0-21 years of age.
Exclusion Criteria:
- Patient with histocompatible sibling or other related donor
- End-organ failure that precludes the ability to tolerate the transplant procedure, including conditioning.
- Renal failure requiring dialysis
- Congenital heart disease resulting in congestive heart failure
- Severe CNS disease, e.g., coma or intractable seizures
- Ventilatory failure due to non-infectious etiology
- Major congenital anomalies that adversely affect survival, eg CNS malformations
- Metabolic diseases that would affect transplant survival, eg urea cycle disorders
- HIV infection
Since the only chance of survival for patients with SCID is successful transplantation, all patients with SCID will be considered to be potential subjects for the study, regardless of end-organ dysfunction.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Ander: unrelated BM with T cell depletion
Acceptable matching for matched unrelated donor (MUD) bone marrow will be genotypic matches at 10 of 10 HLA alleles (HLA-A, B, C, DR and DQ) or 9 of 10 HLA alleles.
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Remaining unmanipulated bone marrow will be processed to isolate CD34+ cells (T cell depleted).
Andere namen:
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Ander: unrelated cord blood
Acceptable matching for unrelated cord blood will be a genotypic match at 6 of 6 alleles (HLA A, B and DR) or 5 of 6 alleles, but not with mismatches at both alleles of a single locus (e.g.
not mismatched for both HLA A alleles).
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Cord blood will be thawed (and processed if ABO incompatibility) per institutional SOP.
Andere namen:
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Ander: haplo BM with T cell depletion
If there is no unrelated donor available meeting the matching criteria for unrelated bone marrow or unrelated cord blood donors.
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haplo-identical (parental) bone marrow will be processed for CD34+ cell isolation.
Andere namen:
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Ander: unrelated PBSC with T cell depletion
The preferred source will be bone marrow, however, if a donor is unable or unwilling to donate bone marrow, peripheral blood stem cells (PBSC) will be allowed.
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peripheral blood stem cell will be processed for CD34+ cell isolation.
Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Number of Participants With Engraftment
Tijdsspanne: 100 day
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Engraftment is defined as recovery of blood counts (neutrophil and platelet engraftment) with cells of donor origin, documented by either bone marrow or peripheral blood chimerism assays after hematopoietic stem cell transplant.
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100 day
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Number of Participants With Donor-derived CD3+ T Lymphocytes >/= 100/mm3
Tijdsspanne: 1 year
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Absolute number of donor-derived CD3+ T lymphocytes >/= 100/mm3 in participating subjects.
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1 year
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Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Number of Participants With Veno-occlusive Disease (VOD) - Moderate and Severe
Tijdsspanne: 100 days
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Evaluation of veno-occlusive disease determined by the presence of the following features; fluid retention, weight gain, leaky capillary syndrome, painful liver enlargement, refractoriness to platelet tranfusion and hyperbilirubinemia
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100 days
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Number of Participants With Graft Versus Host Disease (GVHD) - Grade III or IV
Tijdsspanne: 1 year
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GVHD disease surveillance done by clinical evaluation, to include history, physical examination, specifically for rash, jaundice, liver dysfunction, nausea and vomiting, diarrhea and failure to thrive.
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1 year
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Overall Survival
Tijdsspanne: 1 year
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Overalls survival of patient at 1 year post transplant
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1 year
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Neena Kapoor, M.D., Children's Hospital Los Angeles, University of Southern California
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- CCI-06-00243
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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