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临床试验/NCT03491215
NCT03491215已完成1 期

A Phase I/II Open-label, Single-arm, Multi-center Study of Ruxolitinib Added to Corticosteroids in Pediatric Patients With Grade II-IV Acute Graft vs. Host Disease After Allogeneic Hematopoietic Stem Cell Transplantation

Novartis Pharmaceuticals1 个研究点 分布在 1 个国家目标入组 45 人开始时间: 2019年2月21日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
1 期
状态
已完成
入组人数
45
试验地点
1
主要终点
Phase I: Measurement of Pharmacokinetic (PK) Parameter, AUClast, in aGvHD and SR-aGvHD Patients

研究概览

简要总结

The study was an open-label, single-arm, Phase I/II multi-center study to investigate the PK, activity and safety of ruxolitinib added to the patient's immunosuppressive regimen in infants, children, and adolescents ages ≥28 days to <18 years old with either grade II-IV aGvHD or grade II-IV SR-aGvHD. The trial design included four age groups: Group 1 included patients ≥12y to <18y, Group 2 included patients ≥6y to <12y, Group 3 included patients ≥2y to <6y, and Group 4 included patients ≥28days to <2y.

详细描述

This Phase I/II, open-label, uncontrolled, single-arm, multi-center study investigated PK, activity and safety of ruxolitinib when added to the subject's immunosuppressive regimen in infants, children, and adolescents aged ≥ 28 days to < 18 years with either grade II-IV treatment naive acute GvHD or grade II-IV SR-acute GvHD following allogeneic HSCT.

The trial subjects were grouped by age as follows:

  • Group 1: subjects ≥ 12y to < 18y,
  • Group 2: subjects ≥ 6y to < 12y
  • Group 3: subjects ≥ 2y to < 6y
  • Group 4 was to include subjects ≥ 28 days to < 2y

Subjects remained in the designated age group throughout the duration of the study, based on their age at the start of treatment. All subjects in this study were enrolled and treated for 24 weeks (approximately 6 months) or until early discontinuation.

All subjects were followed for an additional 18 months (total duration = 2 years from enrolment). Where the occurrence of acute GvHD flare require re-initiation of treatment or when extended tapering resulted in ruxolitinib not having been discontinued by the end of 24 weeks, subjects could continue to taper ruxolitinib beyond 24 weeks up to a maximum of 48 weeks.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
28 Days 至 17 Years(Child)
性别
All
接受健康志愿者

入选标准

  • Male or female patients age ≥28 days and <18 years at the time of informed consent.
  • Patients who have undergone alloSCT from any donor source (matched unrelated donor, sibling, haplo-identical) using bone marrow, peripheral blood stem cells, or cord blood. Recipients of myeloablative or reduced intensity conditioning are eligible.
  • Patients with a clinically confirmed diagnosis of grades II-IV aGvHD within 48 hours prior to study treatment start. Patients may have either: Treatment-naïve aGvHD (criteria per Harris et al. 2016) OR Steroid refractory aGvHD as per institutional criteria, or per physician decision in case institutional criteria are not available, and the patient is currently receiving systemic corticosteroids.
  • Evident myeloid engraftment with ANC > 1,000/µl and platelet count >20,000/µl. (Use of growth factor supplementation and transfusion support is allowed.)

排除标准

  • Has received the following systemic therapy for aGvHD: a) Treatment-naïve aGvHD patients have received any prior systemic treatment of aGvHD except for a maximum 72h of prior systemic corticosteroid therapy of methylprednisolone or equivalent after the onset of acute GvHD. Patients are allowed to have received prior GvHD prophylaxis which is not counted as systemic treatment (as long as the prophylaxis was started prior to the diagnosis of aGvHD); OR b) SR-aGvHD patients have received two or more prior systemic treatments for aGvHD in addition to corticosteroids
  • Clinical presentation resembling de novo chronic GvHD or GvHD overlap syndrome with both acute and chronic GvHD features (as defined by Jagasia et al 2015).
  • Failed prior alloSCT within the past 6 months.
  • Presence of relapsed primary malignancy, or who have been treated for relapse after the alloSCT was performed, or who may require rapid immune suppression withdrawal of immune suppression as pre-emergent treatment of early malignancy relapse.
  • Acute GvHD occurring after non-scheduled donor leukocyte infusion (DLI) administered for pre-emptive treatment of malignancy recurrence. Note: Patients who have received a scheduled DLI as part of their transplant procedure and not for management of malignancy relapse are eligible.
  • Any corticosteroid therapy for indications other than aGvHD at doses > 1 mg/kg/day methylprednisolone (or equivalent prednisone dose 1.25 mg/kg/day) within 7 days of Screening. Routine corticosteroids administered during conditioning or cell infusion is allowed.
  • Patients who received JAK inhibitor therapy for any indication after initiation of current alloSCT conditioning.
  • Other protocol-defined Inclusion/Exclusion may apply.

研究组 & 干预措施

Ruxolitinib

Experimental

All pediatric participants received ruxolitinib twice a day (BID) for a planned duration of 24 weeks in either tablet, capsule or oral solution (liquid), depending on the group they were in.

干预措施: Ruxolitinib (Drug)

结局指标

主要结局

Phase I: Measurement of Pharmacokinetic (PK) Parameter, AUClast, in aGvHD and SR-aGvHD Patients

时间窗: Day 1: at predose, 0.5,1,1.5, 2, 4, 6, 9 hours post dose

Measurement in acute GvHD and SR-acute GvHD subjects used extensive PK sampling in Groups 1-3 sparse sampling in Group 4. AUClast: The AUC from time zero to the last measurable concentration sampling time (Tlast).

Phase I: Measurement of PK Parameter, Cmax, in aGvHD and SR-aGvHD Patients

时间窗: Day 1: at predose, 0.5,1,1.5, 2, 4, 6, 9 hours post dose

Measurement in acute GvHD and SR-acute GvHD subjects used extensive PK sampling in Groups 1-3 and sparse sampling in Group 4. Cmax: The maximum (peak) observed plasma drug concentration

Phase I: Measurement of PK Parameter, T1/2, in aGvHD and SR-aGvHD Patients

时间窗: Day 1: at predose, 0.5,1,1.5, 2, 4, 6, 9 hours post dose

Measurement in acute GvHD and SR-acute GvHD subjects used extensive PK sampling in Groups 1-3 and sparse sampling in Group 4. T1/2: The elimination half-life associated with the terminal slope (Lambda_z ) of a semi logarithmic concentration-time curve

Phase I: Measurement of PK Parameter, Ctrough, in aGvHD and SR-aGvHD Patients

时间窗: Day 7 at pre-dose

Measurement in acute GvHD and SR-acute GvHD subjects used extensive PK sampling in Groups 1-3 and sparse sampling in Group 4. Ctrough: The minimum observed plasma concentration at the end of an administration interval (corresponding to the pre-dose concentration prior to the following administration).

Phase I: Age-based Determination of Recommended Phase 2 Dose (RP2D) Using AUClast

时间窗: Day 1: at predose, 0.5,1,1.5, 2, 4, 6, 9 hours post dose

Phase I: Age-based determination of RP2D in Groups 2 and 3 and was based on observed PK parameters in Groups 1-3 * Group 2: age ≥ 6 to \< 12 years * Group 3: age ≥ 2 to \< 6 years AUClast: The AUC from time zero to the last measurable concentration sampling time (Tlast).

Phase I: Age-based Determination of Recommended Phase 2 Dose (RP2D) Using Cmax

时间窗: Day 1: at predose, 0.5,1,1.5, 2, 4, 6, 9 hours post dose

Phase I: Age-based determination of RP2D in Groups 2 and 3 and was based on observed PK parameters in Groups 1-3 * Group 2: age ≥ 6 to \< 12 years * Group 3: age ≥ 2 to \< 6 years Cmax: The maximum (peak) observed plasma drug concentration.

Phase I: Age-based Determination of Recommended Phase 2 Dose (RP2D) Using Ctrough

时间窗: Day 7 at pre-dose

Phase I: Age-based determination of RP2D in Groups 2 and 3 and was based on observed PK parameters in Groups 1-3 * Group 2: age ≥ 6 to \< 12 years * Group 3: age ≥ 2 to \< 6 years Ctrough: The minimum observed plasma concentration at the end of an administration interval (corresponding to the pre-dose concentration prior to the following administration).

Phase II: Overall Response Rate (ORR)

时间窗: Day 28

Phase II: ORR is defined as the percentage of patients demonstrating a complete response (CR) or partial response (PR) without requirement for additional systemic therapies for an earlier progression, mixed response or non-response. Scoring of response was relative to the organ stage at the start of the study treatment. Complete response (CR) is defined as a score of 0 for the aGvHD grading in all evaluable organs that indicates complete resolution of all signs and symptoms of aGvHD in all evaluable organs without administration of additional systemic therapy for any earlier progression, mixed response or non-response of aGvHD. Partial response (PR) is defined as improvement of 1 stage in 1 or more organs involved with aGvHD signs or symptoms without progression in other organs or sites without administration of additional systemic therapy for an earlier progression, mixed response or non-response of aGvHD.

次要结局

  • Percentage of All Patients Who Achieved a Complete Response (CR) or Partial Response (PR) (Durable Overall Response Rate (ORR))(Day 56)
  • Percentage of Patients Who Achieved OR (CR+PR) at Day 14(Day 14)
  • Area Under the Curve (AUClast) Versus Efficacy: Impact of AUClast on Overall Response Rate (ORR) at Day 28(Day 28)
  • Area Under the Curve (AUClast) Versus Efficacy: Impact of AUClast on Durable Response Rate (DRR) at Day 56(Day 56)
  • Area Under the Curve (AUClast) Versus Safety: Impact of AUClast on Bleeding(24 weeks)
  • Area Under the Curve (AUClast) Versus Safety: Impact of AUClast on Infection(24 weeks)
  • Duration of Response (DOR)(Months 1, 2 & 6)
  • Weekly Cumulative Steroid Dose for Each Patient up to Day 56(up to 56 days (Week 1 - Week 8))
  • Overall Survival (OS) Per Kaplan Meier(1 Month (M), 2 M, 6M, 12M, 18M)
  • Event-Free Survival (EFS) Per Kaplan-Meier Estimates(1 Month (M), 2 M, 6M, 12M, 18M)
  • Failure-Free Survival (FFS)(1 Month (M), 2M, 6M, 12M, 18M, 24M)
  • Non Relapse Mortality (NRM)(Month (M)1, M2, M6, M12, M18, M24)
  • Incidence of Malignancy Relapse (MR)/Progression(Month (M) 1, M2, M6, M12, M18, M24,)
  • Cumulative Incidence (CI) of cGvHD(Month (M) 1, M2, M6, M12, M18, M24)
  • Graft Failure(2 years)
  • Questionnaire on Acceptability and Palatability(Day 1, Week 4 (1 month), Week 24 (6 months))
  • PK Parameter - Maximum Serum Concentration (Cmax) Versus Efficacy(24 weeks)
  • PK Parameter: Minimum Serum Concentration (Ctrough) Versus Safety(24 weeks)
  • PK Parameter: Cmax Versus Safety(24 weeks)
  • PK Parameter: Ctrough Versus Efficacy(24 weeks)
  • PK Parameter: Profile of Biomarker Concentration Changes Across Different AUC Quantile Groups(Week 4)
  • PK Parameter: Cmax Versus PD Biomarkers(24 weeks)
  • PK Parameter: Ctrough Versus PD Biomarkers(24 weeks)
  • Percentage of Patients Who Achieved Best Overall Response (BOR) up to Day 28(Up to 28 days and before start of additional aGvHD therapy)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (1)

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