- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT01911039
Phase 1 Infused Donor T Regulatory Cells in Steroid Dependent/Refractory Chronic GVHD
A Phase 1 Safety and Tolerability Study of Infused Donor T Regulatory Cells in Steroid Dependent/Refractory Chronic Graft Versus Host Disease
Přehled studie
Postavení
Intervence / Léčba
Detailní popis
PRIMARY OBJECTIVES:
Determine the safety and tolerability of donor T regulatory (Treg) cell infusions in subjects with steroid dependent/refractory chronic graft versus host disease.
SECONDARY OBJECTIVES:
- Determine the quantitative blood Treg cell changes following the cell infusions
- Determine clinical efficacy of donor Treg cells as failure-free survival (FFS) defined by the absence of a new immunosuppressive therapy added, non-relapse mortality, and recurrent malignancy at Day 180 after the first Treg infusion
In addition to FFS, the study will measure the change in:
- cGVHD symptom burden measured by the Lee cGVHD Symptom Scale by increase in >7 points
- NIH organ-specific cGVHD scale
- The reduction in daily corticosteroid requirement of prednisone to <=0.25 mg/kg-day at Day 180 after the first Treg infusion
Typ studie
Zápis (Aktuální)
Fáze
- Fáze 1
Kontakty a umístění
Studijní místa
-
-
California
-
Palo Alto, California, Spojené státy, 94305
- Stanford University, School of Medicine
-
-
Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Popis
Inclusion Criteria:
Steroid dependent/refractory cGVHD defined as:
- Steroid dependent disease: Persistent cGVHD manifestations requiring a glucocorticoid dose >= prednisone 0.25 mg/kg/day (0.5 mg/kg orally [po] every other day) for at least 12 weeks
- Steroid refractory disease: Progressive cGVHD manifestations despite treatment with a glucocorticoid dose >= prednisone 0.5 mg/kg/day (1 mg/kg po every other day) for at least 4 weeks
- Participants must be receiving systemic glucocorticoid therapy for cGVHD; all immunosuppressive therapy may include but not be limited to tacrolimus, sirolimus, CellCept, cyclosporine, and systemic corticosteroid must be at stable doses for 28 days prior to the first cell infusion
Chronic GVHD manifestations that can be followed on physical or laboratory exam; these include but are not necessarily limited to:
- Skin changes
- Oral mucosa changes
- Bronchiolitis obliterans
- Ocular changes
- Karnofsky performance status >= 60
- Serum creatinine =< 2 mg/dL
- Absolute neutrophil count (ANC) > 1 x 10^9/L
- Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) =< 20 x upper limit of normal (ULN) or
- Total bilirubin =< 10 x ULN
- Allogeneic hematopoietic cell transplant recipient
- Transfusion independent
- Oxygen saturation during exertion is maintained at >= 88% on room air
- Does not have clinically significant, symptomatic uncontrolled heart disease (e.g., unstable angina, congestive heart failure, or uncontrolled hypertension)
- DONOR: Age >= 18 to =< 75 years old
- DONOR: Karnofsky performance status of >= 70% defined by institutional standards
- DONOR: Must be the same sibling donor from whom the recipient's blood and marrow graft was collected for the original allogeneic transplant that is human leukocyte antigen (HLA) 7/8 or 8/8 matched at the HLA-A, B,C, DRB1
- DONOR: Serologies for human immunodeficiency virus (HIV) antigen (Ag), HIV 1 and HIV 2 antibody (Ab), human T-lymphotropic virus type I (HTLV 1) and HTLV 2 Ab, hepatitis B surface antigen (sAg) or polymerase chain reaction positive (PCR+), or hepatitis C Ab or PCR+, Syphilis (Treponema) screen and HIV 1 and hepatitis C by nucleic acid testing (NAT) have been collected prior to apheresis
- DONOR: Female donors of child-bearing potential must have a negative serum or urine beta-human chorionic gonadotropin (HCG) test within three weeks of apheresis
- DONOR: Capable of undergoing leukapheresis, have adequate venous access, and be willing to undergo insertion of a central catheter should leukapheresis via peripheral vein be inadequate
- DONOR: Donor selection will be in compliance with 21 Code of Federal Regulations (CFR) 1271
Exclusion Criteria:
- Original transplant utilized an unrelated donor graft
- Uncontrolled infections that are not responsive to antimicrobial therapy
- Progressive malignant disease, including post-transplant lymphoproliferative disease unresponsive to therapy
- Second malignancy except for skin cancer within the last 5 years
- Received any investigational agent =< 28 days before Treg infusions
- Received filgrastim (GCSF) treatment within one month of enrollment
- Received a donor lymphocyte infusion (DLI) or hematopoietic cell transplantation (HCT) within 3 months of enrollment
- DONOR: Evidence of active infection or viral hepatitis
- DONOR: HIV positive
- DONOR: Pregnant donor
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Léčba
- Přidělení: N/A
- Intervenční model: Přiřazení jedné skupiny
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
|
Experimentální: Regulatory T Cells
Cohort 1 at 1x105 Treg cells/kg, Cohort 2 at 5x105 Treg cells/kg and Cohort 3 at 1.5x106 Treg cells/kg with an extension phase at the MTD (or maximum administered dose if the MTD is not reached).
|
Ostatní jména:
|
Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
The frequency of adverse events related to the donor Treg infusions (e.g., grade III-IV aGVHD by the modified Keystone criteria and grade 3 or higher infusional toxicities graded according to the CTCAE v. 4)
Časové okno: Up to day 180
|
For infusion-related toxicities, recipients will be monitored for 1 hour after the Treg infusion.
Additional toxicities which may occur during the first 28 days after the Treg infusions will count towards the assessment of safety and tolerability (DLT assessment) (e.g., development of aGVHD).
Acute GVHD will be assessed using the modified Keystone criteria on Days 14, 28, 42, 56, 84 and 180 after the Treg infusion (or if the subject is exhibiting signs of aGVHD in-between study visits).
Dose limiting toxicities are defined in Section 8.
Only toxicities which occur during the first 28 days after the cell infusion will count towards the assessment of DLTs.
A dose of Treg will be considered safe if DLTs occur in only 1/6 or 0/3 members of the cohort during the dose-escalation phase.
|
Up to day 180
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Change in absolute blood Treg levels
Časové okno: Baseline to day 42
|
The change in Treg cell counts from baseline to post infusion will be depicted in boxplots of both relative proportion and absolute numbers.
Mean log (fold change) and confidence intervals will be calculated.
|
Baseline to day 42
|
|
Improvement in Failure Free Survival (FFS) over cGVHD
Časové okno: At day 180
|
FFS is defined as the absence of a third line therapy (treatment failure).
Estimated by the Kaplan-Meier product-limit method, with standard confidence limits.
|
At day 180
|
|
Successful achievement of cGVHD partial response or Complete response by the NIH consensus criteria
Časové okno: Up to day 180
|
The results will be summarized in tabular form, with confidence intervals for the trinomial proportions. |
Up to day 180
|
|
The ability to reduce steroid requirements to <0.25 mg/kg-day
Časové okno: At day 180
|
At day 180
|
|
|
Change in >7 points on the Lee cGVHD Symptom scale relates to improvement in quality of life
Časové okno: Baseline to day 180
|
A one-sample t-test will be used on the change in scale from baseline to months 1, 3, and 6.
|
Baseline to day 180
|
Spolupracovníci a vyšetřovatelé
Sponzor
Spolupracovníci
Vyšetřovatelé
- Vrchní vyšetřovatel: Laura Johnston, Stanford University
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia
Primární dokončení (Aktuální)
Dokončení studie (Aktuální)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Odhad)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Další relevantní podmínky MeSH
Další identifikační čísla studie
- IRB-27285
- BMT253 (Jiný identifikátor: OnCore)
Informace o lécích a zařízeních, studijní dokumenty
Studuje lékový produkt regulovaný americkým FDA
Studuje produkt zařízení regulovaný americkým úřadem FDA
produkt vyrobený a vyvážený z USA
Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .