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临床试验/RBR-5hzmjx
RBR-5hzmjx招募中2 期

A Phase II Study of Dasatinib Therapy in Children and Adolescents with Ph+ Leukemiawith Resistance or Intolerance to Imatinib

Bristol-Myers Squibb0 个研究点开始时间: 2011年6月27日最近更新:

试验速览

阶段
2 期
状态
招募中
发起方

研究概览

简要总结

暂无简介。

研究设计

研究类型
Intervention

入排标准

年龄范围
— 至 18Y(—)

入选标准

  • Written informed consent from subject, or from parents or legal guardians for
  • minor subjects, according to local law and regulation.
  • Cohort #1: Subjects must have Ph+ CML in CP which is defined by the
  • presence of all the following criteria:
  • < 15% blasts in peripheral blood and bone marrow
  • < 20% basophils in peripheral blood
  • < 30% blasts + promyelocytes in peripheral blood and bone marrow
  • >= 100 X 109 platelets/L unless thrombocytopenia secondary to recent
  • No extramedullary involvement other than liver or spleen
  • Ph+ or variant must be demonstrated by bone marrow cytogenetics
  • Cohort #2: Subjects must have Ph+ ALL or Ph+ AP- or BP-CML:
  • Ph+ ALL have to be in first or subsequent relapse [ >= 25% blasts in bone
  • marrow] or fail to achieve remission after imatinib
  • AP-CML must meet at least one of the following criteria:
  • >= 15% but < 30% blasts in peripheral blood or bone marrow
  • >= 30% blasts + promyelocytes in peripheral blood and in bone marrow
  • (but percent alone has to be < 30%)
  • >= 20% basophils in peripheral blood or bone marrow
  • < 10 X 109/L platelets unrelated to therapy
  • BP-CML has to meet all the following criteria:
  • >= 30% blasts in peripheral blood or bone marrow
  • Presence of extramedullary blastic disease other than lymph nodes,
  • liver or spleen
  • Subjects have to be proven resistant or intolerant to imatinib:
  • For both cohorts, intolerance to imatinib is defined as the occurrence of any
  • toxicity grade >= 3 considered at least possibly related to imatinib and that led
  • to discontinuation of previous imatinib therapy.
  • For Cohort #1, resistance to imatinib must meet at least one of the following
  • Failure to achieve, or loss of, CHR after >= 3 months of imatinib at a
  • daily dose of 260 mg/m2 or greater;
  • Failure to achieve MCyR after >=6 months or CCyR after >= 12 months of imatinib therapy at a daily dose of 260 mg/m2 or greater;
  • Absolute increase of >= 30% of the percentage of Ph+ metaphases,
  • confirmed at >= 6 week interval, after prior MCyR to imatinib at a daily
  • dose of 260 mg/m2 or greater.
  • For Cohort #2, resistance to imatinib must meet at least one of the following
  • Failure to achieve CHR while on imatinib after a >= 4-week treatment
  • or a >= 50% increase in peripheral blood blasts over a 2-week period
  • Subjects who achieved a CHR subsequently no longer meet the criteria
  • consistently over a consecutive 2-week period while receiving imatinib
  • Absolute increase of >= 30% of the percentage of Ph+ metaphases,
  • confirmed at >= 6 week interval, after prior MCyR to imatinib.
  • Lansky or Karnofsky scale > 50
  • Life expectancy >= 12 weeks
  • Subjects must have recovered to baseline or Grade 1 (NCI CTCAE, version 3.0)
  • from the toxicities (except alopecia) resulting from recent therapies, including
  • chemotherapy, hormonal therapy, immunotherapy, biological therapy or
  • investigational product and radiation therapy.
  • Serum Na, K, NaHC03, Mg, P and Ca levels within institutional normal limits
  • and AST, ALT, bilirubin, BUN or urea, creatinine ? Grade 2 (NCI CTCAE,
  • Version 3.0).
  • 另有 6 项未显示

排除标准

  • WOCBP who are unwilling or unable to use an acceptable method to avoid
  • pregnancy for the entire study period and for up to 12 weeks after the last dose of
  • investigational product.
  • Women who are pregnant or breastfeeding
  • Women with a positive pregnancy test on enrollment or prior to investigational
  • product administration.
  • Sexually active fertile men not using effective birth control if their partners are WOCBP who are unwilling or unable to use an acceptable method to avoid
  • pregnancy for the entire study period and for up to 4 weeks after the last dose of
  • investigational product.
  • Subjects for whom potentially-curative therapy is available, including
  • hematopoietic stem-cell transplantation (HSCT) at the time when subject is
  • assessed for enrollment
  • Subjects with isolated central nervous system disease are excluded from study.
  • This criterion relates to subjects with CNS-3 disease (? 5 leukemic blasts per
  • cubic millimeter in a sample with < 10 erythrocytes per cubic millimeter).
  • Subjects with CNS-1 (no detectable blast cells in a sample of cerebrospinal fluid)
  • and CNS-2 (< 5 leukemic blast cells in a sample with < 10 erythrocytes per cubic
  • millimeter) are eligible for study. Subjects with a combined relapse which also
  • involves the CNS are eligible, provided this is asymptomatic (no convulsions or
  • other neurological symptoms).
  • Isolated extramedullary disease, with < 5% blasts in bone marrow
  • Any serious uncontrolled medical disorder that would impair the ability of the subject to receive protocol therapy, including:
  • Ongoing uncontrolled infection
  • Clinically-significant disorder of platelet function (e.g. von Willebrand’s
  • disease) or ongoing gastrointestinal bleeding
  • Clinically-significant cardiovascular disease, congenital long QT syndrome,
  • history of ventricular arrhythmias or heart block, or prolonged QTc interval >
  • 450 ms (Fridericia correction) on baseline electrocardiogram
  • Subjects diagnosed with the T315I mutation (mutation testing should be
  • performed according to the investigator’s standard practice and is not
  • mandatory at sites without BCR-ABL testing available).
  • Subjects who have experienced hypersensitivity to dasatinib or to any of the excipients. Inactive ingredients in dasatinib tablets include: lactose
  • monohydrate, microcrystalline cellulose, croscarmellose sodium,hydroxypropyl cellulose, and magnesium stearate. The tablet coating consists of hypromellose, titanium dioxide, and polyethylene glycol.
  • Subjects with hereditary problems of galactose intolerance or Lapp lactase
  • deficiency or glucose-galactose malabsorption.
  • Expected non-compliance to protocol schedule or unable to have regular followup
  • due to psychological, social, familial or geographic reasons
  • Prior therapy with dasatinib.
  • Any investigational agent or any other anti-cancer agent within 14 days prior to
  • treatment start. Imatinib mesylate may be continued up to 7 days before treatment
  • start, or, in the presence of rising peripheral blast cells, imatinib may be continued up to 2 days before treatment start. If required for control of peripheral blast cells,hydroxyurea, corticosteroids, 6-mercaptopurine or 6-thioguanine may be given up
  • to 2 days before treatment start.
  • Subjects requiring ongoing medications which may:
  • Have a known risk of causing QTc prolongation ii) Irreversibly inhibit platelet function, or anticoagulants (Does not apply to low-dose heparin for prophylaxis or to heparin flushes for i.v. lines)

研究者

发起方
Bristol-Myers Squibb

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