Status:

COMPLETED

A Clinical Trial in Patients With Breast Cancer Susceptibility Gene (BRCA) Defective Tumours

Lead Sponsor:

University of Oxford

Conditions:

Breast Cancer

Ovarian Cancer

Eligibility:

FEMALE

18+ years

Phase:

PHASE2

Brief Summary

This study will evaluate the efficacy and safety of 6-mercaptopurine (6MP) in combination with methotrexate (MTX) in patients with breast or ovarian cancer who are known to have a BRCA (breast cancer ...

Detailed Description

This study will evaluate the efficacy and safety of 6-mercaptopurine (6MP) in combination with methotrexate (MTX) in patients with breast or ovarian cancer who are known to have a BRCA (breast cancer ...

Eligibility Criteria

Inclusion

  • Patients with proven BRCA1 or BRCA2 mutations and after appropriate exposure to standard treatment, as defined by:
  • Breast Cancer
  • Patients with initially histologically or cytologically proven locally advanced or metastatic breast cancer who may have received up to 3 previous lines of chemotherapy in the locally advanced or metastatic breast cancer setting.
  • Patients must have previously had a taxane and an anthracycline in either the adjuvant or metastatic setting, provided that these were not contraindicated.
  • Patients with hormone responsive disease should have had at least 1 line of hormone therapy for metastatic disease.
  • Prior treatment with a poly-Adenosine diphosphate (ADP) ribose polymerase (PARP) inhibitor is permissible.
  • OR Ovarian Cancer
  • Patients with initially histologically or cytologically proven ovarian cancer.
  • Patients must have disease that is platinum resistant or in whom further platinum based therapy is inappropriate.
  • Prior treatment with a PARP inhibitor is permissible.
  • Patients must have measurable disease on computerized tomography (CT) or Magnetic resonance imaging (MRI) scan as defined by Response Evaluation Criteria In Solid Tumors (RECIST) criteria.
  • Age ≥18 years.
  • Eastern Cooperative Oncology Group (ECOG) performance score of 0-2.
  • Life expectancy \>12 weeks.
  • Written informed consent.
  • Patient willing and able to comply with all protocol requirements.
  • No prior anti-cancer treatment in previous 4 weeks, other than palliative radiotherapy (RT).
  • Haematological and biochemical indices within the ranges shown below.
  • Laboratory Test Value required
  • Haemoglobin (Hb) \> 10g/dL
  • White Blood Count (WBC) \> 3x109/L
  • Platelet count \> 100,000/μL
  • Absolute Neutrophil count \> 1.5x109/L;
  • Serum bilirubin ≤ 2 x Upper limit normal (ULN)
  • Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase (SGOT)) and alanine aminotransferase (ALT) or ALT ≤ 5 x ULN (liver metastasis)
  • or ≤ 3 x ULN (no liver metastasis)
  • Alkaline phosphatase ≤ 5 x ULN
  • Serum creatinine ≤ 1.5 x ULN
  • Ascites and pleural effusions must be drained prior to therapy.

Exclusion

  • Patients with any of the following contra-indications to thiopurines (6MP or 6TG) or methotrexate:
  • family history of severe liver failure;
  • alcoholism;
  • porphyria;
  • diffuse infiltrative pulmonary or pericardial disease;
  • known hypersensitivity to either trial agent.
  • Patients found to have a Low/Low genotype on thiopurine methyltransferase (TPMT) testing will be excluded.
  • Pregnant or breast-feeding women or women of childbearing potential unless highly effective methods of contraception are used.
  • Other active malignancy, with the exception of adequately treated in situ carcinoma of the cervix uteri and basal or squamous cell carcinoma of the skin.
  • Patients known or tested to be serologically positive for Hepatitis B, Hepatitis C or human immunodeficiency virus (HIV).
  • Patients with active central nervous system (CNS) lesions are excluded (i.e., those with radiographically unstable, symptomatic lesions). However, patients treated with stereotactic therapy or surgery and/or whole brain radiotherapy are eligible if the patient remains without evidence of disease progression in brain ≥ 3 months prior to registration date . They must also be off corticosteroid therapy for ≥ 3 weeks prior to registration date.
  • Patients who have received anticancer agent(s) or an investigational agent within 28 days prior to study drug administration.
  • Subjects who have not recovered to within one grade level (not to exceed grade 2) of their baseline following a significant adverse event or toxicity attributed to previous anticancer treatment are excluded.

Key Trial Info

Start Date :

May 1 2011

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

May 1 2015

Estimated Enrollment :

74 Patients enrolled

Trial Details

Trial ID

NCT01432145

Start Date

May 1 2011

End Date

May 1 2015

Last Update

July 9 2019

Active Locations (1)

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1

Churchill Hospital

Oxford, United Kingdom, OX3 7LJ