Aspire In Vitro Maturation Study (AIM)

Pilot Study Assessing the Feasibility of CAPA-IVM in Participants With Good Ovarian Reserve

A study to assess the Capacitation - in-vitro maturation (CAPA-IVM) system as an option for patients with a good ovarian reserve to achieve pregnancy.

Study Overview

Status

Enrolling by invitation

Intervention / Treatment

Detailed Description

CAPA-IVM is being evaluated for its feasibility as an In vitro maturation (IVM) system in US fertility clinics. IVM is a laboratory process for maturing immature oocytes (eggs) outside of the body after egg retrieval. Egg retrievals are performed without prior ovarian stimulation.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Texas
      • Houston, Texas, United States, 77030
        • Aspire Fertility Houston

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Signed Informed Consent Form to participate in this study voluntarily.
  2. Age 18-37 years at the time of starting the CAPA-IVM cycle.
  3. Body mass index (BMI) ≤38 kg/m2.
  4. Serum AMH levels greater than or equal to 3.5 ng/mL.
  5. Have an indication for IVM/IVF cycle.
  6. Have not received more than two previous treatments of IVM/IVF.
  7. Willing and able to comply with trial procedures, including oocyte pick-up from small follicles and to follow a CAPA-IVM cycle.
  8. Agree to culture all embryos to blastocyst stage, vitrify suitable blastocysts, and submit suitable blastocysts for PGT-A according to clinic protocol before determining transfer eligibility.
  9. Agree that only euploid CAPA-IVM-derived blastocysts will be eligible for transfer and that a single euploid blastocyst will be transferred per programmed FET cycle, unless a protocol-defined exception is prospectively justified by the investigator.

Exclusion Criteria:

  1. Prior ovarian surgery.
  2. Known uterine abnormalities (adenomyosis, leiomyoma (≥5 cm), bicornuate uterus, intrauterine adhesion) that would compromise successful pregnancy or live birth.
  3. Had received ovarian stimulation within the last 3 months for ovulation induction or IVF
  4. Had evidence of a very low oocyte maturation rate (oocyte maturation rate < 50% in any previous IVF or IVM cycle).
  5. For male partners: severe oligoasthenoteratozoospermia, requirement for retrograde ejaculation procedures or surgical sperm retrievals. Donor sperm is permitted.
  6. Known chromosomal abnormalities in participant or partner.
  7. Have herself or partner with acute urinary tract infection or sexually transmitted diseases.
  8. Have herself or partner a severe mental disorder, such as schizophrenia, bipolar affective disorder, or intellectual disability caused by mental disorders.
  9. Have a history of recurrent pregnancy loss defined as two or more clinical pregnancies without live birth.
  10. Known tumors of the ovary, breast, uterus, adrenal gland, pituitary or hypothalamus that would preclude to conduct a CAPA-IVM cycle without ovarian stimulation or participation in this study.
  11. Any known clinically significant systemic disease (heart, liver, kidney or other organs) that would prevent or compromise pregnancy or participation in this study.
  12. Pregnancy or contraindication to pregnancy.
  13. Undiagnosed vaginal bleeding.
  14. Known drug or alcohol abuse or dependency for the participant or partner for the last 12 months.
  15. Current or past (3 months) smoking habit of 10 or more cigarettes per day.
  16. Had a recent exposure to teratogenic radiation, drugs or toxins which could still be active during the study period.
  17. Currently participating in another clinical trial or receiving an investigational medicinal product.
  18. Previous participation in this study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: CAPA-IVM
Patients will undergo egg retrieval prior to in vitro maturation with CAPA-IVM system and subsequent frozen embryo transfer.
CAPA-IVM is a two-step IVM process to mature oocytes in the laboratory after egg retrieval.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Metaphase II rate
Time Frame: Assessed approximately 40 hours after egg retrieval
The metaphase II (MII) rate is defined as the number of oocytes that reach MII stage of development divided by the number of cumulus-oocyte-complexes (COCs) placed into CAPA-IVM culture.
Assessed approximately 40 hours after egg retrieval

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of MII oocytes
Time Frame: Assessed approximately 40 hours post egg retrieval
The number of oocytes that reach the metaphase II (MII) stage of development after CAPA-IVM culture
Assessed approximately 40 hours post egg retrieval
Fertilization rate
Time Frame: Assessed 16-18 hours post fertilization
The fertilization rate is defined as the number of embryos that have 2 pro-nuclei post fertilization by intracytoplasmic sperm injection (ICSI)
Assessed 16-18 hours post fertilization
Number of blastocysts
Time Frame: Assessed 5-7 days post fertilization
The number of embryos that make it to the blastocyst stage of development post fertilization
Assessed 5-7 days post fertilization
Number of blastocysts vitrified
Time Frame: Assessed 5-7 days post fertilization
The number of embryos that are cryopreserved by vitrification post fertilization
Assessed 5-7 days post fertilization
Number of blastocysts submitted for PGT-A
Time Frame: Assessed 5-7 days post fertilization
The number of embryos that are biopsied and samples sent for PGT-A testing
Assessed 5-7 days post fertilization
Number of euploid blastocysts
Time Frame: Assessed 2-4 weeks post embryo biopsy
Number of embryos that had a euploid result from PGT-A testing
Assessed 2-4 weeks post embryo biopsy
Positive beta-hCG rate
Time Frame: Assessed 9-11 days post embryo transfer
The number of patients with a serum QHCG level greater than 5 after embryo transfer divided by the total number of embryo transfers
Assessed 9-11 days post embryo transfer
Ongoing pregnancy rate
Time Frame: Assessed approximately 10 weeks post embryo transfer
The number of patients who have an ongoing intrauterine pregnancy at the last study visit
Assessed approximately 10 weeks post embryo transfer
Live birth rate
Time Frame: Assessed approximately 40 weeks post embryo transfer
Number of patients who had a live birth after embryo transfer
Assessed approximately 40 weeks post embryo transfer

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 26, 2026

Primary Completion (Estimated)

February 1, 2028

Study Completion (Estimated)

February 1, 2028

Study Registration Dates

First Submitted

August 20, 2026

First Submitted That Met QC Criteria

August 26, 2026

First Posted (Actual)

August 27, 2026

Study Record Updates

Last Update Posted (Actual)

August 27, 2026

Last Update Submitted That Met QC Criteria

August 26, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IRI-ASP-2026-02

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe