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The Impact of Tamoxifen and Aromatase Inhibitors on Platelet Proteins

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified April 2011 by University of Vermont.
Recruitment status was:  Active, not recruiting
American Cancer Society, Inc.
Information provided by:
University of Vermont Identifier:
First received: July 7, 2010
Last updated: April 21, 2011
Last verified: April 2011
Single phlebotomy study involving women receiving tamoxifen or aromatase inhibitor therapy.

Breast Cancer

Study Type: Observational
Official Title: Platelet Modulation in the Control of Angiogenesis: The Impact of Tamoxifen and Aromatase Inhibitors on Platelet Activation and Angiogenic Proteins

Resource links provided by NLM:

Further study details as provided by University of Vermont:

Primary Outcome Measures:
  • Angiogenic Protein levels [ Time Frame: following 6 months of therapy ]

Biospecimen Retention:   Samples Without DNA
serum, plasma, platelet activated samples

Estimated Enrollment: 60
Study Start Date: August 2009
Estimated Study Completion Date: September 2012
Primary Completion Date: October 2010 (Final data collection date for primary outcome measure)
tamoxifen or aromatase inhibitors


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Women using tamoxifen or aromatase inhibitor therapy for greater than 6 months

Inclusion Criteria:

  • women routinely taking tamoxifen or aromatase inhibitor therapy as prescribed by their oncologist

Exclusion Criteria:

  • Use of heparin, warfarin
  Contacts and Locations
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Please refer to this study by its identifier: NCT01341171

United States, Vermont
University of Vermont
Burlington, Vermont, United States, 05401
Sponsors and Collaborators
University of Vermont
American Cancer Society, Inc.
Principal Investigator: Chris E Holmes, MD, PhD University of Vermont
  More Information

Responsible Party: Chris E. Holmes, MD, PhD, University of Vermont Identifier: NCT01341171     History of Changes
Other Study ID Numbers: V0805
Study First Received: July 7, 2010
Last Updated: April 21, 2011

Keywords provided by University of Vermont:
aromatase inhibitors
breast cancer

Additional relevant MeSH terms:
Aromatase Inhibitors
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Antineoplastic Agents, Hormonal
Antineoplastic Agents
Selective Estrogen Receptor Modulators
Estrogen Receptor Modulators
Bone Density Conservation Agents
Steroid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on May 25, 2017