Clinical Trials /

Patients With Refractory, Metastatic Cancer Harboring KIT Mutation or Amplification to Investigate the Clinical Efficacy and Safety of Imatinib Therapy

NCT02461849

Description:

KIT is a receptor tyrosine kinase that binds to stem-cell factor (SCF), activating a series of downstream effector pathways. KIT is an established therapeutic target in cancer with activating mutations of KIT, such as gastrointestinal stromal tumors (GIST), and significant benefit is achieved with various small molecule inhibitors of KIT such as imatinib mesylate. Moreover, there is increasing evidence implicating KIT mutations as tractable therapeutic targets in melanoma. Additional information is required to characterize the functional role of low-frequency mutations in KIT and to determine whether amplification of wild type KIT is a real driver that can be targeted therapeutically. Except GIST and melanoma, other solid cancers were reported to have KIT mutation even in low frequency. A molecular profiling of the tumors of patients referred to the phase I clinic at the M.D. Anderson Cancer Center showed KIT mutation in 7 patients in total of 431 patients (2%). Hence, the investigators planned this study to apply the molecularly targeted agent, imatinib to various types of cancers harboring KIT mutation or amplification.

Related Conditions:
  • Cancer
Recruiting Status:

Recruiting

Phase:

Phase 2

Trial Eligibility

Document

Title

  • Brief Title: Patients With Refractory, Metastatic Cancer Harboring KIT Mutation or Amplification to Investigate the Clinical Efficacy and Safety of Imatinib Therapy
  • Official Title: A Phase II, Open-label, Study in Patients With Refractory, Metastatic Cancer Harboring KIT Mutation or Amplification to Investigate the Clinical Efficacy and Safety of Imatinib Therapy

Clinical Trial IDs

  • ORG STUDY ID: 2013-12-074
  • NCT ID: NCT02461849

Conditions

  • Advanced, Refractory Cancer

Interventions

DrugSynonymsArms
ImatinibImatinib

Purpose

KIT is a receptor tyrosine kinase that binds to stem-cell factor (SCF), activating a series of downstream effector pathways. KIT is an established therapeutic target in cancer with activating mutations of KIT, such as gastrointestinal stromal tumors (GIST), and significant benefit is achieved with various small molecule inhibitors of KIT such as imatinib mesylate. Moreover, there is increasing evidence implicating KIT mutations as tractable therapeutic targets in melanoma. Additional information is required to characterize the functional role of low-frequency mutations in KIT and to determine whether amplification of wild type KIT is a real driver that can be targeted therapeutically. Except GIST and melanoma, other solid cancers were reported to have KIT mutation even in low frequency. A molecular profiling of the tumors of patients referred to the phase I clinic at the M.D. Anderson Cancer Center showed KIT mutation in 7 patients in total of 431 patients (2%). Hence, the investigators planned this study to apply the molecularly targeted agent, imatinib to various types of cancers harboring KIT mutation or amplification.

Trial Arms

NameTypeDescriptionInterventions
ImatinibExperimentalImatinib 400mg qd daily Until disease progression, patient's refusal
  • Imatinib

Eligibility Criteria

        Inclusion Criteria:

          1. age ≥ 20

          2. advanced, refractory cancer patients who failed standard of care (SOC)

          3. KIT aberration: defined as mutation in exons 9, 11, 13, 17 or 18, or nanostring CNV by
             quantitative PCR (greater than 3 copies) or subject with specific sensitivity
             (Z-score<-1) to imatinib by Avatar scan whose disease has progressed following
             standard therapy or that has not responded to standard therapy or for which there is
             no standard therapy

          4. ECOG performance status of 0~2

          5. measurable or evaluable lesion per RECIST 1.1 criteria

          6. adequate marrow, hepatic, renal and cardiac functions

               -  Serum aspartate transaminase (AST) and serum alanine transaminase (ALT) ≤ 2.5 x
                  upper limit of normal (ULN), or AST and ALT ≤ 5 x ULN if liver function
                  abnormalities are due to underlying malignancy

               -  Total serum bilirubin ≤ 1.5 x ULN

               -  Absolute neutrophil count(ANC) ≥ 1,500/uL

               -  Platelets ≥ 100,0000/uL

               -  Hemoglobin ≥ 9.0 g/dL

          7. provision of a signed written informed consent

        Exclusion Criteria:

          1. severe co-morbid illness and/or active infections

          2. pregnant or lactating women

          3. history of major surgery or radiotherapy within 4 weeks

          4. active CNS metastases not controllable with radiotherapy or corticosteroids (however,
             CNS metastases (except for leptomeningeal seeding) are allowed if controlled by gamma
             knife surgery or surgery or radiotherapy or steroid)

          5. known history of hypersensitivity to study drugs
      
Maximum Eligible Age:N/A
Minimum Eligible Age:20 Years
Eligible Gender:All
Healthy Volunteers:No

Primary Outcome Measures

Measure:Response rate
Time Frame:expected average of 24 weeks
Safety Issue:
Description:Response will be evaluated according to RECIST(Response Evaluation Criteria In Solid Tumors) 1.1 guidelines.Tumor responses will be assessed after the 2cycle chemotherapy and after completion of treatment. They should be classified as complete remission (CR), partial remission (PR), stable disease (SD), or progressive disease (PD) according to the Revised Response Criteria for refractory, metastatic cancer harboring KIT mutation or amplification.

Secondary Outcome Measures

Measure:Duration of response
Time Frame:expected average of 24 weeks
Safety Issue:
Description:
Measure:Progression-free survival
Time Frame:expected average of 24 weeks
Safety Issue:
Description:
Measure:Overall survival
Time Frame:expected average of 3years
Safety Issue:
Description:
Measure:Number of subjects with Adverse Events as a measure of safety
Time Frame:expected average of 24 weeks
Safety Issue:
Description:

Details

Phase:Phase 2
Primary Purpose:Interventional
Overall Status:Recruiting
Lead Sponsor:Samsung Medical Center

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