Open Label, Multicenter, Randomized, Controlled Study of IM or Oral Exemestane (Aromasin) in Postmenopausal Women

Open Label, Multicenter, Randomized, Controlled Study of IM or Oral Exemestane (Aromasin) in Postmenopausal Women With Advanced Breast Cancer Having Progressed on Tamoxifen.

The purpose of this study is to find out if the two different formulations of exemestane (Aromasin), oral and injectable, are equivalent in terms of pharmacodynamics and pharmacokinetics, i.e., if ultimately both formulations have the same efficacy in postmenopausal women with metastatic breast cancer who have failed previous antiestrogens therapy and are equally safe.

Study Overview

• Status: Terminated
• Conditions: Breast Neoplasms
• Intervention / Treatment: Drug: exemestane

• Study Type: Interventional
• Enrollment: 100
• Phase: Phase 2

Contacts and Locations

Study Locations

• United Kingdom
  • Leicester, United Kingdom
    • Pfizer Investigational Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• other diagnosed with breast cancer
• estrogen receptor positivity
• Postmenopausal status
• advanced disease
• progression to previous tamoxifen therapy

Exclusion Criteria:

• more than 1 chemotherapy and / or more than 1 hormonotherapy for advanced disease
• previous hormonotherapy other than Tamoxifen

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
To determine the pharmacodynamic equivalence at steady state of the IM formulation of exemestane with the oral formulation in terms of plasma estrone sulphate inhibitory effect in postmenopausal women with advanced breast cancer.

Secondary Outcome Measures

Outcome Measure
to characterize the pharmacodynamic profile of the two formulations in terms of estrogens, androgens, and sec hormone binding globulin
to characterize the pharmacokinetics of exemestane and 17 hydroexemestane after administration of the two formulations
to evaluate the relationships between pharmacokinetics and pharmacodynamics after intramuscular and oral administration of exemestane
to evaluate the efficacy (as tumor response)
to evaluate the incidence and severity of systemic toxicities and of the local tolerability of the injectable formulation
to evaluate the effect on serum bone turnover markers

Collaborators and Investigators

• Sponsor: Pfizer

Publications and helpful links

Helpful Links

• To obtain contact information for a study center near you, click here.

Study record dates

Study Major Dates

• Study Start: June 1, 2002
• Primary Completion (Actual): December 1, 2006
• Study Completion (Actual): December 1, 2006

Study Registration Dates

• First Submitted: June 18, 2002
• First Submitted That Met QC Criteria: June 19, 2002
• First Posted (Estimate): June 20, 2002

Study Record Updates

• Last Update Posted (Estimate): February 16, 2012
• Last Update Submitted That Met QC Criteria: February 14, 2012
• Last Verified: February 1, 2012

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Skin Diseases; Neoplasms; Neoplasms by Site; Breast Diseases; Breast Neoplasms; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antineoplastic Agents; Hormones, Hormone Substitutes, and Hormone Antagonists; Hormone Antagonists; Aromatase Inhibitors; Steroid Synthesis Inhibitors; Estrogen Antagonists; Exemestane
• Other Study ID Numbers: 971-ONC-0401-003