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Not listed No phase listed Observational

Aromatase Inhibitor Clinical Trial

ClinicalTrials.gov ID: NCT00228956

Public ClinicalTrials.gov record NCT00228956. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 3, 2026, 3:50 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Multi-Center Randomized Clinical Trial Correlating the Effects of 24 Months of Exemestane or Letrozole on Surrogate Markers of Response With Aromatase Polymorphism

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

You are invited to participate in a research study looking at metabolism (breakdown) and effects of aromatase inhibitors. The purpose of this research is to try to identify which women who take an aromatase inhibitor are more likely to have certain benefits or side effects from the drug. We will do so by determining whether there are differences that normally occur in genes that you have inherited from your parents that might influence the way individuals respond to medications. If you agree to participate in this study, you will be asked to sign this informed consent form.

Study identification

NCT ID
NCT00228956
Recruitment status
Not listed
Study type
Observational
Phase
Not listed
Enrollment
500 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
40 Years to 70 Years
Sex
Female
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 31, 2004
Primary completion
Not listed
Completion
Jan 31, 2009
Last update posted
Sep 24, 2008

2005 – 2009

United States locations

U.S. sites
3
U.S. states
3
U.S. cities
3
Facility City State ZIP Site status
Indiana University Indianapolis Indiana 46202 Recruiting
The Sidney Kimmel Comprehensive Cancer Center at John Hopkins Baltimore Maryland 21231 Not yet recruiting
UMCCC Ann Arbor Michigan 48109 Not yet recruiting

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00228956, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 24, 2008 · Synced Sep 3, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00228956 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →