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Study Assessing Efficacy of ZARNESTRA™ Combined With Tamoxifen in Patients With Advanced or Metastatic Breast Cancer

Phase 2
Terminated
Conditions
Breast Neoplasms
Registration Number
NCT00210028
Lead Sponsor
Institut Claudius Regaud
Brief Summary

The purpose of this study is to evaluate the objective response rate when ZARNESTRA is added to treatment with tamoxifen

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
Female
Target Recruitment
40
Inclusion Criteria
  • Histologically proven, metastatic or locally advanced inoperable breast cancer
  • Tumor considered potentially hormone-sensitive, i.e. presence by IHC of hormone receptors for estrogens (ER+ for more than 10% of cells) and/or progesterone (Pg+ for more than 10% of cells) or both. This expression may have been detected on the primary tumor or at a metastatic site. The method used will be reassessed by IHC if it involves a radioligand technique whenever it is possible to obtain histological material.
  • Progressing on treatment with tamoxifen, given either as adjuvant treatment or for advanced/metastatic breast cancer. Any previous treatment with a steroidal or nonsteroidal antiaromatase in a neo-adjuvant, adjuvant or metastatic situation is permitted. Likewise, any previous treatment with chemotherapy and/or herceptin in a nonmetastatic situation is permitted.
  • Post-menopausal patients
  • Age > 18 years
  • At least one measurable lesion according to the Response Evaluation Criteria for Solid Tumors (RECIST) criteria; for patients who only have bone metastases, an evaluable non-irradiated lytic lesion is required
  • Performance Status (WHO): PS ≤ 2 (Appendix 1).
  • Laboratory tests in accordance with the following criteria:

Neutrophils ≥ 2x109/l,Platelets ≥ 100x109/l,Hemoglobin ≥ 10 g/dl, ASAT, ALAT ≤ 2.5 N , or < 5 N when liver metastasis,bilirubin ≤ 1.5 N creatinin ≤ 1.5 N

  • Signed, written consent before any study-related procedure
Exclusion Criteria
  • Men
  • Pre-menopausal patients who are not receiving concurrent LHRH agonist therapy
  • ER- and PR-negative patients
  • Contraindication to antiestrogens (thromboembolic risk) or ZARNESTRA
  • Non metastatic tumor susceptible to management by radiotherapeutic and/or surgical means
  • T4d inflammatory tumor (PEV 2 or 3).
  • Short-term, life-threatening lesions: hepatic invasion > 1/3 of liver volume, pulmonary lymphangitis, uncontrolled cerebral metastases, carcinomatous meningitis
  • Sensory neuropathy > or = grade 1 (WHO)
  • Previous history of uncontrolled cancers or controlled for less than 5 years, except basal cell skin cancers and in situ cancers of the cervix.
  • Chronic diseases (somatic or psychiatric) with a poor prognosis
  • subjects with enzyme-inducing anti-convulsants (e.g., phenytoin, phenobarbital, carbamazepine) : this treatment is not permitted while taking ZARNESTRA
  • Patients who, for family, social, geographic or psychological reasons, could not be followed up correctly.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Primary Outcome Measures
NameTimeMethod
To evaluate the objective response rate when ZARNESTRA is added to administration of tamoxifen in patients suffering from metastatic or advanced inoperable breast cancer, who are progressing on tamoxifen treatment
Secondary Outcome Measures
NameTimeMethod
To evaluate the time to progression
To evaluate the clinical benefit (response + stable disease at 6 months)
To evaluate the safety of the combination ZARNESTRA and tamoxifen
To evaluate a possible pharmacokinetic interaction between ZARNESTRA and tamoxifen
To evaluate the biological predictive and prognostic factors of a response

Trial Locations

Locations (3)

Institut Bergonie

🇫🇷

Bordeaux, France

Institut Val d'Aurelle_ Paul Lamarque

🇫🇷

Montpellier, France

Institut Claudius Regaud

🇫🇷

Toulouse, France

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