Study Of CP-751,871 In Combination With Exemestane In Postmenopausal Women With Hormone Receptor Positive Advanced Breast Cancer

This study has been terminated.
(This study was closed to enrollment as of 13 May 2011 due to business reasons. Premature closure was not prompted by any safety or efficacy concerns.)
Information provided by (Responsible Party):
Pfizer Identifier:
First received: September 5, 2006
Last updated: August 7, 2014
Last verified: August 2014

To test the efficacy of CP-751,871 combined with exemestane in the treatment of postmenopausal patients with hormone positive advanced breast cancer

Condition Intervention Phase
Breast Neoplasms
Drug: CP-751,871
Drug: exemestane
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Two-Arm Randomized Open Label Phase 2 Study Of CP-751,871 In Combination With Exemestane Versus Exemestane Alone As First Line Treatment For Postmenopausal Patients With Hormone Receptor Positive Advanced Breast Cancer

Resource links provided by NLM:

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Efficacy of the exemestane plus CP-751,871 combination measured as Progression Free Survival [ Time Frame: 60 months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Safety [ Time Frame: 60 months ] [ Designated as safety issue: No ]
  • Clinical benefit [ Time Frame: 60 months ] [ Designated as safety issue: No ]
  • PK [ Time Frame: 60 months ] [ Designated as safety issue: No ]
  • Pharmacodynamics and Quality of Life Outcome [ Time Frame: 60 months ] [ Designated as safety issue: No ]

Enrollment: 219
Study Start Date: February 2007
Study Completion Date: June 2014
Primary Completion Date: November 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
CP-751,871 + exemestane Treatment until progression or toxicity
Drug: CP-751,871
CP-751,871 given at 20 mg/kg IV on day 1 of each 21 day cycle.
Drug: exemestane
Exemestane given at 25 mg orally once a day.
Active Comparator: 2 Drug: exemestane
Exemestane given at 25 mg orally once a day. Treatment until progression or toxicity


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Postmenopausal women with a diagnosis of hormone receptor positive advanced breast cancer
  • HbA1c <5.7%

Exclusion Criteria:

  • Previous treatment for advanced disease
  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: NCT00372996

  Show 38 Study Locations
Sponsors and Collaborators
Study Director: Pfizer Call Center Pfizer
  More Information

Additional Information:
No publications provided

Responsible Party: Pfizer Identifier: NCT00372996     History of Changes
Other Study ID Numbers: A4021004
Study First Received: September 5, 2006
Last Updated: August 7, 2014
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Breast Neoplasms
Breast Diseases
Neoplasms by Site
Skin Diseases
Antineoplastic Agents
Aromatase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Therapeutic Uses processed this record on July 01, 2015