Breast cancer drug showdown: which one spares your memory?
NCT ID NCT00893061
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This completed Phase 3 study looked at how four different hormone therapies (anastrozole, exemestane, letrozole, and tamoxifen) affect memory in postmenopausal women with breast cancer. The 44 participants took one of these drugs for 6 to 12 months, and researchers tested their verbal memory and other thinking skills. The goal was to find out which treatment has the least impact on memory, helping women and their doctors make more informed choices.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- anastrozole, exemestane, letrozole, tamoxifen citrate
- What this could lead to
- If successful, this study could help doctors choose breast cancer treatments that are less likely to cause memory problems.
- What could go wrong
- This is a small, completed study with only 44 participants, so results may not apply to all women. It only measured short-term memory changes over 6-12 months.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
-
44 people
The number who actually took part.
- Started
-
Mar 2009
- Finished
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Nov 2014
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Female participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
DISEASE CHARACTERISTICS: * Histologically confirmed breast cancer * No metastatic disease * Meets criteria for initiating adjuvant endocrine therapy * Hormone receptor status: * Estrogen receptor- and/or progesterone receptor-positive disease PATIENT CHARACTERISTICS: * Postmenopausal, defined as no menstruation for ≥ 1 year, confirmed by a measurement of FSH and 17-beta-estradiol * Karnofsky performance status 80-100% * Native speaker of French * Beneficiary of a French Social Security insurance plan * No prior cognitive disorders * No depression or other confirmed active psychiatric disease * Able to undergo the medical monitoring of the trial due to geographic, social or psychological reasons * No personal or family history of thromboembolic disease PRIOR CONCURRENT THERAPY: * No prior adjuvant chemotherapy * No concurrent follow-up participation on another study * No concurrent treatment with psychotropic substances (i.e., long half life benzodiazepines, antipsychotics, anticholinesterase)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Centre Eugene Marquis
Rennes, France
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Centre Oscar Lambret
Lille, 59020, France
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Centre Paul Strauss
Strasbourg, France
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