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Study Evaluating CCI-779 and Letrozole in Post-menopausal Women With Breast Cancer

This study has been terminated.
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer Identifier:
First received: June 4, 2004
Last updated: November 7, 2011
Last verified: November 2011

In this clinical research study, postmenopausal subjects with metastatic breast cancer will be given either the combination of temsirolimus (CCI-779) and letrozole or a placebo and letrozole in first-line hormonal treatment. The primary endpoint of this study is to determine overall progression free survival.

Individual subjects will participate in the active treatment phase of the study until disease progression or withdrawal of consent, provided that test article is being tolerated. All subjects will be asked to participate in the long-term follow-up phase of the study, which includes follow-up every 3 months until disease progression (for subjects who withdraw for reasons other than documented progressive disease) or until any new cancer treatment is received, and for survival. The estimated duration of study participation is 34 months.

Condition Intervention Phase
Breast Neoplasms Neoplasm Metastasis Drug: Temsirolimus (CCI-779) for 34 months Drug: Letrozole for 34 months Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Phase 3 Randomized, Placebo-Controlled, Double-Blind Study of Oral CCI-779 Administered in Combination With Letrozole vs. Letrozole Alone as First Line Hormonal Therapy in Postmenopausal Women With Locally Advanced or Metastatic Breast Cancer

Resource links provided by NLM:

Further study details as provided by Wyeth is now a wholly owned subsidiary of Pfizer:

Primary Outcome Measures:
  • To determine overall progression free survival.

Secondary Outcome Measures:
  • To determine safety, survival, health outcomes, prognostic markers and pharmacogenomics analysis.

Estimated Enrollment: 1236
Study Start Date: May 2004
Study Completion Date: October 2006
Primary Completion Date: October 2006 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Women aged greater than 18 years.
  • Postmenopausal subjects
  • Confirmed diagnosis of locally advanced (not amenable to curative surgery and/or radiation) or metastatic breast cancer (Stage 3B or 4 respectively, by American Joint Committee on Cancer Criteria)

Exclusion Criteria:

  • Extensive visceral disease
  • Subjects with bone as the only site of disease
  • Prior radiation therapy to the site of measurable disease for subjects with a solitary measurable lesion
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00083993

  Show 129 Study Locations
Sponsors and Collaborators
Wyeth is now a wholly owned subsidiary of Pfizer
Study Director: Medical Monitor Wyeth is now a wholly owned subsidiary of Pfizer
  More Information

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00083993     History of Changes
Other Study ID Numbers: 3066A1-303
Study First Received: June 4, 2004
Last Updated: November 7, 2011

Keywords provided by Wyeth is now a wholly owned subsidiary of Pfizer:
Breast Cancer

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasm Metastasis
Neoplasms by Site
Breast Diseases
Skin Diseases
Neoplastic Processes
Pathologic Processes
Antineoplastic Agents
Aromatase Inhibitors
Steroid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Immunosuppressive Agents
Immunologic Factors
Anti-Bacterial Agents
Anti-Infective Agents
Antibiotics, Antineoplastic
Antifungal Agents processed this record on August 21, 2017