Could a breast cancer drug treat ectopic pregnancy?
NCT ID NCT07624903
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether letrozole, a drug that lowers estrogen, can treat early ectopic pregnancy as effectively as the standard drug methotrexate. The trial will enroll 70 women with confirmed ectopic pregnancy and low hormone levels. Participants will receive one of the two drugs, and success will be measured by how well the pregnancy resolves.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Letrozole (a drug that blocks estrogen production) and methotrexate (a drug that stops cell growth)
- What this could lead to
- If letrozole works as well as methotrexate, it could offer a simpler, less toxic treatment option for early ectopic pregnancy, avoiding surgery.
- What could go wrong
- This is a small, early-phase trial with only 70 participants. It may not show a clear benefit, and letrozole's safety for this use is not yet proven.
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
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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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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20 to 35 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Confirmed ectopic pregnancy on trans vaginal ultrasound * Age between 20 and 35 years * A β-hCG levels \< 3000 Iu/ L * The average diameter of the adnexal mass ≤3.5 cm * Stable hemodynamic condition Exclusion Criteria: * Presence of fetal heart pulsation * Heterotopic pregnancy * Presence of significant abdominal pain * history of allergic reactions to MTX or letrozole * Any known liver disorder or abnormal liver enzyme levels (AST or ALT ) * Any known renal disorder or impaired renal function tests (abnormal creatinine)
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Kafr El-Sheikh University
Kafr ash Shaykh, Kafr el-Sheikh Governorate, 33511, Egypt
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New ultrasound method may predict ectopic pregnancy treatment success
- Education after ectopic pregnancy may boost contraceptive use and sexual Well-Being
- Could a smartphone app replace hospital visits for Women's emergency aftercare?
- Low-Dose ketamine may reduce Post-Surgery pain in ectopic pregnancy patients