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Could a longer clomid regimen boost IVF success for women with low egg supply?

NCT ID NCT06701071

Disease control Sponsor: University of Southern California Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Aug 05, 2026 · Updated 3 times

Summary

This study compares a longer course of the fertility drug Clomid against the standard short course for women with diminished ovarian reserve undergoing IVF. The goal is to see if the extended protocol leads to more mature eggs retrieved while reducing the number of injections and overall cost. 120 participants will be randomly assigned to one of the two protocols.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Clomiphene citrate (Clomid)
What this could lead to
If successful, this could offer a more effective and less burdensome stimulation protocol for women with diminished ovarian reserve, potentially increasing the number of mature eggs retrieved during IVF.
What could go wrong
This is a Phase 4 trial with only 120 participants, so results may not apply to all patients. The longer protocol may not improve outcomes and could increase side effects like premature ovulation.

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 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 120 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2025

Expected to finish

Jun 2028

An estimate. End dates often move.

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

18 to 44 years

Sex

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.

Show 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: * Undergoing IVF * Must meet POSEIDON criteria based on clinic evaluation * Female partner: Antral follicle count of 2 or more and age \<45 at time of stimulation start * Male partner/sperm source: Cannot be azoospermic * Planning freeze-all cycle (regardless of blastocyst or cleavage stage culture) or fresh transfer if randomized to short Clomid group * Planning 36-hour trigger window Exclusion Criteria: * Normal ovarian reserve or good response * Allergy or adverse reaction to Clomid * Minimal stimulation protocols * History of prior premature ovulation

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Conditions

The condition(s) this trial relates to.

female infertility

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Infertility, female

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • HRC Fertility

    RECRUITING

    Pasadena, California, 91101, United States

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