Molecular Mechanisms of Clinical Resistance to Targeted Therapy Among Patients With Breast Cancer
Public ClinicalTrials.gov record NCT00897702. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to learn why certain drugs stop working in patients.In lab studies, tumors become resistant in several ways. Specific molecules seem to change and this may be why therapy stops working. However, we do not know if the same molecules change in patients. This study is being done to see if they do change. If we learn more about how patients become resistant, we may be able to offer better treatment in the future.
Study identification
- NCT ID
- NCT00897702
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 269 participants
Conditions and interventions
Conditions
Interventions
- Blood draw Other
- immunoenzyme technique Other
- biopsy Procedure
- histopathologic examination Procedure
Other · Procedure
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- 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
- Jan 8, 2007
- Primary completion
- Jan 22, 2026
- Completion
- Jan 22, 2026
- Last update posted
- Jan 27, 2026
2007 – 2026
United States locations
- U.S. sites
- 7
- U.S. states
- 2
- U.S. cities
- 7
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Memorial Sloan Kettering Basking Ridge (Consent only) | Basking Ridge | New Jersey | 07920 | — |
| Memorial Sloan Kettering Monmouth (Consent only) | Middletown | New Jersey | 07748 | — |
| Memorial Sloan Kettering Bergen (Consent only) | Montvale | New Jersey | 07645 | — |
| Memorial Sloan Kettering Commack (Consent only) | Commack | New York | 11725 | — |
| Memorial Sloan Kettering Westchester (Consent only) | Harrison | New York | — | — |
| Memorial Sloan Kettering Cancer Center | New York | New York | 10065 | — |
| Memorial Sloan Kettering Nassau (Consent only) | Uniondale | New York | 11553 | — |
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 NCT00897702, 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 Jan 27, 2026 · Synced Sep 11, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00897702 live on ClinicalTrials.gov.