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临床试验/NCT04872595
NCT04872595进行中(未招募)2 期

Phase 2 Study of Personalized r-ATG Dosing to Improve Survival Through Enhanced Immune Reconstitution in Pediatric and Adult Patients Undergoing Ex-vivo CD34-Selected Allogeneic-HCT (PRAISE-IR)

Memorial Sloan Kettering Cancer Center1 个研究点 分布在 1 个国家目标入组 59 人开始时间: 2021年4月30日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
状态
进行中(未招募)
入组人数
59
试验地点
1
主要终点
proportion of patients who achieve CD4+IR

研究概览

简要总结

The purpose of this study is to see if conditioning regimens that include personalized rabbit ATG (P-rATG) help the immune system recover sooner and decrease the chances of transplant-related side effects. Participants in this study will be children and adults who have acute leukemia or myelodysplastic syndrome (MDS), and will receive a standard conditioning regimen to prepare the body for an allogeneic hematopoietic cell transplant (allo-HCT). The conditioning regimen will include r-ATG, one of two combinations of chemotherapy, and possibly total body irradiation (TBI).

研究设计

研究类型
Interventional
分配方式
Non Randomized
干预模型
Parallel
主要目的
Treatment
盲法
None

入排标准

年龄范围
4 Years 至 —(Child, Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patients receiving first peripheral blood mobilized ex-vivo CD34-selected T cell depleted allo-HCT for the following hematologic malignant conditions:
  • Acute myeloid leukemia (AML) with intermediate or high-risk features in CR1 or Relapse AML in ≥ CR
  • Must have MRD <5% (flow cytometry, molecular and/or cytogenetics accepted).
  • Acute leukemias of ambiguous lineage in ≥ CR
  • Must have MRD <5% (flow cytometry, molecular and/or cytogenetics accepted).
  • Acute lymphoid leukemia (ALL) in CR1 with clinical, flow cytometric, or molecular features indicating a high risk for relapse, or ALL in ≥ CR
  • Adult Patients - recommended but not required to be MRDnegative (by flow cytometry, molecular and/or cytogenetics).
  • Pediatric Patients - Must be MRD-negative by flow cytometry, molecular and/or cytogenetics.
  • Myelodysplastic syndromes (MDS) with least one of the following:
  • Revised International Prognostic Scoring System risk score of intermediate or higher at the time of transplant evaluation.
  • Life-threatening cytopenia.
  • Karyotype or genomic changes that indicate high risk for progression to acute myelogenous leukemia, including abnormalities of chromosome 7 or 3, mutations of TP53, or complex or monosomal karyotype.
  • Therapy related disease or disease evolving from other malignant processes.
  • Able to tolerate cytoreduction
  • Patients age:
  • Regimen A: 4 - 60 years
  • Regimen B - no age restriction
  • Adequate organ function is required, defined as follows:
  • Hepatic: Serum bilirubin ≤ 2 mg/dL, unless benign congenital hyperbilirubinemia. Patients with hyperbilirubinemia related to paroxysmal nocturnal hemoglobinuria or other hemolytic disorders are eligible with PI approval.
  • Hepatic: AST, ALT, and alkaline phosphatase < 2.5 times the upper limit of normal unless thought to be disease-related.
  • Renal: serum creatinine <1.5x normal for age. If serum creatinine is outside the normal range, then CrCl > 50 mL/min/1.73m2 (calculated or estimated) or GFR (mL/min/1.72m2) >30% of predicted normal for age.
  • Normal GFR by Age
  • 1 week 40.6 + / - 14.8
  • 2 - 8 weeks 65.8 + / - 24.8
  • °> 8 weeks 95.7 +/- 21.7
  • 2 - 12 years 133 +/- 27
  • 13 - 21 years (males) 140 +/- 30
  • 13 - 21 years (females) 126.0 + / - 22.0
  • Cardiac: LVEF ≥ 50% by MUGA or resting echocardiogram.
  • Pulmonary: Pulmonary function testing (FEV1 and corrected DLCO) ≥ 50% predicted (pediatric patients unable to complete PFTs will need oxygen saturation as recorded by pulse oximetry of ≥92% on room air).
  • Adequate performance status:
  • Age ≥ 16 years: ECOG ≤ 1 or Karnofsky 70%
  • Age < 16 years: Lansky 70%
  • Each patient must be willing to participate as a research subject and must sign an informed consent form or legal guardian with assent as appropriate.

排除标准

  • Patients with active extramedullary disease.
  • Patients with active central nervous system malignancy.
  • Uncontrolled infection at the time of allo-HCT.
  • Patients who have undergone previous allo-HCT.
  • Patient seropositivity for HIV I/II and/or HTLV I/II.
  • Females who are pregnant or breastfeeding.
  • Patients unwilling to use contraception during the study period.
  • Patient or parent or guardian unable to give informed consent or unable to comply with the treatment protocol including research tests.
  • Donor Inclusion Criteria:
  • Related or Unrelated Donors:
  • °8/8 HLA matched at A, B, C, and DRB1 loci, as tested by DNA analysis.
  • Able to provide informed consent for the donation process per institutional standards.
  • Meet standard criteria for donor collection (e.g. National Marrow Donor Program Guidelines or collecting center guidelines as approved by treating physician).
  • Provide GSCF mobilized peripheral blood stem cells

研究组 & 干预措施

P-rATG with total body irradiation, thiotepa, cyclophosphamide

Experimental

P-rATG days (always starting on Day -12 to -10)

  • Hyper fractionated total body irradiation (1375 - 1500cGy*) Day -9 to -6
  • Thiotepa (5mg/kg/day x 2 day) Day -5 to -4
  • Cyclophosphamide (60mg/kg/day x 2 days) Day -3 to -2
  • GCSF Day +7 *TBI dose in 125cGy fractions (with lung shielding) and total dose to be determined by treating physician/radiation oncology and is based off age, stage of disease, and anesthesia requirements.

干预措施: Personalized rATG (P-rATG) (Other)

P-rATG with total body irradiation, thiotepa, cyclophosphamide

Experimental

P-rATG days (always starting on Day -12 to -10)

  • Hyper fractionated total body irradiation (1375 - 1500cGy*) Day -9 to -6
  • Thiotepa (5mg/kg/day x 2 day) Day -5 to -4
  • Cyclophosphamide (60mg/kg/day x 2 days) Day -3 to -2
  • GCSF Day +7 *TBI dose in 125cGy fractions (with lung shielding) and total dose to be determined by treating physician/radiation oncology and is based off age, stage of disease, and anesthesia requirements.

干预措施: GCSF (Drug)

P-rATG with total body irradiation, thiotepa, cyclophosphamide

Experimental

P-rATG days (always starting on Day -12 to -10)

  • Hyper fractionated total body irradiation (1375 - 1500cGy*) Day -9 to -6
  • Thiotepa (5mg/kg/day x 2 day) Day -5 to -4
  • Cyclophosphamide (60mg/kg/day x 2 days) Day -3 to -2
  • GCSF Day +7 *TBI dose in 125cGy fractions (with lung shielding) and total dose to be determined by treating physician/radiation oncology and is based off age, stage of disease, and anesthesia requirements.

干预措施: Hyper fractionated total body irradiation (Radiation)

P-rATG with busulfan, melphalan and fludarabine

Experimental

P-rATG days (Appendix A - always starting on Day -12 to -10)

  • Busulfan -Day -9 to -7
  • Initial dose per table in Appendix B; doses 2-3 to be adjusted per PK for target cumulative exposure of 65 mg*h/L Melphalan (70mg/m2/day x 2 days) Day -6 to -5
  • Fludarabine (25mg/m2/day x 5 days) Day -6 to -2
  • GCSF Day +7

干预措施: Personalized rATG (P-rATG) (Other)

P-rATG with busulfan, melphalan and fludarabine

Experimental

P-rATG days (Appendix A - always starting on Day -12 to -10)

  • Busulfan -Day -9 to -7
  • Initial dose per table in Appendix B; doses 2-3 to be adjusted per PK for target cumulative exposure of 65 mg*h/L Melphalan (70mg/m2/day x 2 days) Day -6 to -5
  • Fludarabine (25mg/m2/day x 5 days) Day -6 to -2
  • GCSF Day +7

干预措施: GCSF (Drug)

P-rATG with total body irradiation, thiotepa, cyclophosphamide

Experimental

P-rATG days (always starting on Day -12 to -10)

  • Hyper fractionated total body irradiation (1375 - 1500cGy*) Day -9 to -6
  • Thiotepa (5mg/kg/day x 2 day) Day -5 to -4
  • Cyclophosphamide (60mg/kg/day x 2 days) Day -3 to -2
  • GCSF Day +7 *TBI dose in 125cGy fractions (with lung shielding) and total dose to be determined by treating physician/radiation oncology and is based off age, stage of disease, and anesthesia requirements.

干预措施: Cyclophosphamide (Drug)

P-rATG with total body irradiation, thiotepa, cyclophosphamide

Experimental

P-rATG days (always starting on Day -12 to -10)

  • Hyper fractionated total body irradiation (1375 - 1500cGy*) Day -9 to -6
  • Thiotepa (5mg/kg/day x 2 day) Day -5 to -4
  • Cyclophosphamide (60mg/kg/day x 2 days) Day -3 to -2
  • GCSF Day +7 *TBI dose in 125cGy fractions (with lung shielding) and total dose to be determined by treating physician/radiation oncology and is based off age, stage of disease, and anesthesia requirements.

干预措施: Thiotepa (Drug)

P-rATG with busulfan, melphalan and fludarabine

Experimental

P-rATG days (Appendix A - always starting on Day -12 to -10)

  • Busulfan -Day -9 to -7
  • Initial dose per table in Appendix B; doses 2-3 to be adjusted per PK for target cumulative exposure of 65 mg*h/L Melphalan (70mg/m2/day x 2 days) Day -6 to -5
  • Fludarabine (25mg/m2/day x 5 days) Day -6 to -2
  • GCSF Day +7

干预措施: Busulfan (Drug)

P-rATG with busulfan, melphalan and fludarabine

Experimental

P-rATG days (Appendix A - always starting on Day -12 to -10)

  • Busulfan -Day -9 to -7
  • Initial dose per table in Appendix B; doses 2-3 to be adjusted per PK for target cumulative exposure of 65 mg*h/L Melphalan (70mg/m2/day x 2 days) Day -6 to -5
  • Fludarabine (25mg/m2/day x 5 days) Day -6 to -2
  • GCSF Day +7

干预措施: Melphalan (Drug)

P-rATG with busulfan, melphalan and fludarabine

Experimental

P-rATG days (Appendix A - always starting on Day -12 to -10)

  • Busulfan -Day -9 to -7
  • Initial dose per table in Appendix B; doses 2-3 to be adjusted per PK for target cumulative exposure of 65 mg*h/L Melphalan (70mg/m2/day x 2 days) Day -6 to -5
  • Fludarabine (25mg/m2/day x 5 days) Day -6 to -2
  • GCSF Day +7

干预措施: Fludarabine (Drug)

结局指标

主要结局

proportion of patients who achieve CD4+IR

时间窗: within 100 days of HCT

is defined at CD4+ \> 50u/L at two consecutive measures within 100 days post allo-HCT.

次要结局

  • Overall Survival (OS)(2 years)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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