Suspended

Assessing Safety of OvaPrime Procedure in Women with Primary Ovarian Insufficiency or Poor Ovarian Response

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What is being tested

OvaPrime Treatment

Other
Who is being recruted

Urogenital Diseases+7

+ Genital Diseases

+ Adnexal Diseases

From 21 to 45 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Interventional
Study Start: October 2016
See protocol details

Summary

Principal SponsorOvaScience, Inc.
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: October 1, 2016

Actual date on which the first participant was enrolled.

This research study focuses on evaluating the safety of the OvaPrime procedure in women diagnosed with primary ovarian insufficiency (POI) or poor ovarian response (POR). The primary goal is to understand the safety aspects of this procedure in these women. POI is a condition where the ovaries stop functioning normally before the age of 40, while POR refers to a lesser than expected response to fertility medication. This study is important as it could potentially offer a new treatment option for these conditions, addressing unmet needs in women's reproductive health. A maximum of 95 women will participate in this study, with at least 30 having POI and 50 with POR. Each participant will have one ovary exposed to the EggPC cells (part of the OvaPrime procedure), while the other ovary will be exposed to the EggPC vehicle, acting as a control. This allows each participant to serve as their own control in the study. The results between the treatment and control ovary will be compared for relevant endpoints such as antral follicle counts. The study will last approximately 6 years, including enrollment, treatment, and a 5-year follow-up. The safety of the procedure will be evaluated by monitoring adverse events and serious adverse events in all subjects, regardless of pregnancy. For those who become pregnant, they will be followed through pregnancy and 1-year post-partum, with the safety of the offspring monitored up to one year post-delivery in the main study, and up to 5 years in a long-term follow-up study.

Official TitleSingle Center, Prospective Controlled Pilot Study of the OvaPrime Procedure
Principal SponsorOvaScience, Inc.
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

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

81 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 21 to 45 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Urogenital DiseasesGenital DiseasesAdnexal DiseasesEndocrine System DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsGenital Diseases, FemaleGonadal DisordersOvarian DiseasesPrimary Ovarian InsufficiencyFemale Urogenital Diseases

Criteria

Inclusion Criteria: 1. Subjects who are diagnosed with EITHER POI or POR as defined below: * POI subjects who are: * \< 40 years of age * have non-detectable AMH * FSH \>15.0 mIU/ml and/or symptoms of menopause * POR (based on European Society of Human Reproduction and Embryology (ESHRE) guidelines must have two of the following: * 40 years of age * A previous IVF cycle with \< 3 oocytes with a standard of care controlled ovarian hyperstimulation protocol * An abnormal ovarian reserve test defined as: 1. AFC \< 5 - 7 follicles or 2. AMH \< 0.5 - 1.1 ng/ml or 3. Highest ever baseline FSH \> 15.0 ml U/ml 2. Subject must have both ovaries. 3. Subject agrees to participate in main study follow up as well as Long Term Follow-up (LTFU) sub-study 4. Subject's male partner or sperm donor source must meet the following requirements: * Semen must be an ejaculate (not surgically derived, epididymal, testicular, electro- ejaculated sperm), collected by ejaculation. * Male partner's testes must not have been exposed to chemotherapy. * Semen must have some morphologically normal spermatozoa according to the World Health Organization (see table below) and adequate concentration with some motile spermatozoa for insemination of all oocytes by intra-cytoplasmic sperm injection (ICSI). WHO Semen variable 2010 Volume (mL) 1.5 Concentration (106 mL-1) 15 Total sperm number (106/ejaculate) 39 Motility (% motile) 40 (a + b + c) Forward progression 32 (a + b) Morphology (% normal) 4 Viability/vitality (% live) 58 White blood cells (106 mL-1) \< 1.0 5. Partner must also agree to all research study requirements including follow up (including main study as well as LTFU sub-study) of offspring and sign consent form (not applicable in the case of a woman using sperm donation). Exclusion Criteria: 1. Subject with a diagnosis of POI who is ≥ 40 years of age or \< 21 years of age at the time of the OvaPrime procedure 2. Subject with onset of POI \< 18 years of age 3. Subject with a diagnosis of POR who is \> 45 years of age at the time of the OvaPrime procedure 4. Subject has had any prior surgery/medical condition that would prevent direct access to the ovaries (e.g., pelvic adhesions, tubo- ovarian adhesions location/displacement of the ovary(ies) or high body mass index (BMI)). 5. Subject has severe (stage IV) endometriosis or presence of an endometrioma 6. Subject has a unilateral or bilateral untreated hydrosalpinx 7. Subject has participated in the active phase of another investigational trial within the previous 30 days 8. Subject has a history of prior chemotherapy or radiation therapy to the pelvis 9. Subjects and/or partner (supplying sperm) with known karyotypic abnormalities 10. Subjects with POI who have FMR1 premutations or an FMRI mutation 11\. Subjects who are positive for the hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) and human immunodeficiency virus (HIV).

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

One single intervention group is designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

The treatment is based on identified EggPC cells in the outer-most layer of the ovary. During OvaPrime, the EggPC cells are isolated from biopsy tissue obtained from the outer layer of the ovary. OvaScience separates the EggPC cells and these isolated cells are then returned to the IVF clinic - there is no culture or expansion of the EggPC cells during this process. Upon receipt of the autologous EggPC cells, the clinic initiates the process of reintroducing the cells into the follicular development zone of the woman's own ovary using a laparoscopic procedure. Once in the ovary, the EggPC cells have the opportunity to develop and mature into fertilizable eggs naturally or with controlled ovarian hyperstimulation (when stimulated by exogenous gonadotropins) using standard IVF protocols.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

TRIO

Toronto, CanadaOpen TRIO in Google Maps
SuspendedOne Study Center