Clinical Trials results for "Langerhans"

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  • A Study to Determine Safety, Tolerability and Pharmacokinetics of Oral Dabrafenib In Children and Adolescent Subjects
  • This is a 2-part, study to determine the safety, tolerability and pharmacokinetics of oral dabrafenib in children and adolescent subjects with advanced BRAF V600 mutation-positive solid tumors. Part 1 (dose escalation study) will identify the recommended Part 2 (tumor-specific expansion study) dose and regimen using a dose-escalation procedure. Approximately 6 to 18 subjects will participate in Part 1 and will receive a starting dose of 3 mg/kg and dose will deescalate or escalate between 1.5 milligram (mg)/kilogram (kg) and 6 mg/kg. Up to 6 subjects will be enrolled at one dose level dependent upon the number of subjects at the current dose level, the number of subjects who have experienced a dose limiting toxicity (DLT) at the current dose level, and the number of subjects enrolled but with data pending at the current dose level. Escalation may proceed until either a maximum tolerated dose (MTD) is established, or until the dose in which the median pharmacokinetic parameters consistent with exposure in adults are achieved. Cohorts may be added in order to evaluate additional dose levels. Part 2 consists of four disease-specific cohorts of subjects with tumors known to have BRAF V600 activation (pediatric low-grade gliomas, pediatric high-grade gliomas, Langerhans cell histiocytosis [LCH], and other tumors such as melanoma and papillary thyroid carcinoma [PTC]). Each cohort will enroll at least 10 subjects with a pre-dose and at least 1 post-dose disease assessment. In both the parts of the study, on Day 1, a single first dose will be administered, and repeat dosing will begin on Day 2. PK sampling will be performed on Day 1 and Day 15 for subjects >=25 kg in weight. For subjects <25 kg and >=10 kg in weight, blood samples for PK analysis will be collected on Day 1 and Day 15. For subjects <10kg in weight, blood samples for PK analysis will be collected after repeated administration on Day 15 only. Safety and tolerability will be assessed throughout the study. Treatment with dabrafenib will be continued until disease progression or until no clinical benefit or development of an unacceptable toxicity, or until they withdraw consent or begin a new therapy. At the end of treatment, a final study visit will occur.
  • Diagnoses: Pediatric Solid Tumors, Pediatric Brain Tumor
  • Status: Recruiting
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  • Study to Investigate Safety, Pharmacokinetic (PK), Pharmacodynamic (PD) and Clinical Activity of Trametinib in Subjects With Cancer or Plexiform Neurofibromas and Trametinib in Combination With Dabrafenib in Subjects With Cancers Harboring V600 Mutations
  • This is a 3-part (Part A, Part B, Part C), Phase I/IIa, multi-center, open label, study in pediatric subjects with refractory or recurrent tumors. Part A is a repeat dose, dose escalation monotherapy study that will identify the recommended phase II dose (RP2D) on the continuous dosing schedule using a 3 + 3 dose-escalation procedure. Part B will evaluate the preliminary activity of trametinib monotherapy in 4 disease-specific cohorts of subjects. Each cohort will enroll at least 10 response-evaluable subjects (evaluable for response is defined as a subject with a pre-dose and at least 1 post-dose disease assessment or clinical assessment of progression of disease). Part C is will be a 3+3 study design to determine the safety, tolerability and preliminary activity of the RP2D of trametinib in combination with a limited dose escalation of dabrafenib. Part C will enroll up to 18 subjects. . The overall goal of this trial is to efficiently establish safe, pharmacologically relevant dose of trametinib in infants, children and adolescents and determine preliminary activity of trametinib monotherapy in selected recurrent, refractory or unresectable childhood tumors.
  • Diagnoses: Pediatric Solid Tumors
  • Status: Recruiting
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