New combo therapy may boost IVF success for women with painful uterine condition
NCT ID NCT06913075
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding letrozole to standard GnRH agonist therapy improves pregnancy rates in women with adenomyosis undergoing frozen embryo transfer. About 700 participants will be randomly assigned to one of two groups. The main goal is to see if more women have a healthy pregnancy at 12 weeks with the combination treatment.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 700 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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Dec 2026
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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21 to 42 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.
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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.
Inclusion Criteria: Diagnosis of adenomyosis confirmed via transvaginal ultrasound as per MUSA criteria History of infertility requiring frozen embryo transfer (FET). Availability of at least one good-quality frozen embryo for transfer Exclusion Criteria: BMI ≥ 30 kg/m2 Presence of endocrine disorders; (uncontrolled diabetes mellitus, / hyperprolactinemia, thyroid dysfunction, Congenital adrenal hyperplasia, Cushing syndrome, or polycystic ovary syndrome Previous major uterine surgery Gestational carrier Fertility preservation
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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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Indira IVF Pvt Hospital
Udaipur, Rajasthan, 313001, India
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Other studies related to the condition(s) this trial covers.
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- New IUD combo aims to stop displacement in adenomyosis