SCID Bu/Flu/ATG Study With T Cell Depletion
18 augusti 2017 uppdaterad av: Neena Kapoor, M.D.
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
This is a pilot clinical trial of hematopoietic stem cell transplantation for patients with a diagnosis of Severe Combined Immune Deficiency (SCID) who do not have an HLA-matched sibling donor.
The stem cells will be derived from a 1) matched unrelated donor (MUD), 2) unrelated cord blood donor, or 3) a haplo-identical (parental) donor (in descending order of preference).Patients will receive a novel conditioning regimen with Busulfan, Fludarabine and Anti-thymocyte globulin (ATG) followed by an unrelated donor hematopoietic stem cell transplant (HSCT) with T-cell depletion using the CliniMACS device.
Studieöversikt
Status
Avslutad
Betingelser
Detaljerad beskrivning
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.
Studietyp
Interventionell
Inskrivning (Faktisk)
9
Fas
- Fas 2
- Fas 1
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
-
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California
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Los Angeles, California, Förenta staterna, 90027
- Children's Hospital Los Angeles
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
Inte äldre än 21 år (Barn, Vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Beskrivning
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.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Icke-randomiserad
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Övrig: 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.
|
Remaining unmanipulated bone marrow will be processed to isolate CD34+ cells (T cell depleted).
Andra namn:
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Övrig: 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).
|
Cord blood will be thawed (and processed if ABO incompatibility) per institutional SOP.
Andra namn:
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Övrig: 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.
Andra namn:
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Övrig: 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.
Andra namn:
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Number of Participants With Engraftment
Tidsram: 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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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Number of Participants With Donor-derived CD3+ T Lymphocytes >/= 100/mm3
Tidsram: 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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Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Number of Participants With Veno-occlusive Disease (VOD) - Moderate and Severe
Tidsram: 100 days
|
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
Tidsram: 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
Tidsram: 1 year
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Overalls survival of patient at 1 year post transplant
|
1 year
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Sponsor
Utredare
- Huvudutredare: Neena Kapoor, M.D., Children's Hospital Los Angeles, University of Southern California
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Faktisk)
2 januari 2007
Primärt slutförande (Faktisk)
1 augusti 2016
Avslutad studie (Faktisk)
1 augusti 2016
Studieregistreringsdatum
Först inskickad
19 oktober 2012
Först inskickad som uppfyllde QC-kriterierna
29 april 2014
Första postat (Uppskatta)
1 maj 2014
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
18 september 2017
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
18 augusti 2017
Senast verifierad
1 augusti 2017
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- CCI-06-00243
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
NEJ
Läkemedels- och apparatinformation, studiedokument
Studerar en amerikansk FDA-reglerad läkemedelsprodukt
Nej
Studerar en amerikansk FDA-reglerad produktprodukt
Ja
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