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ART Cycle Outcomes When Only 1 to 3 Oocytes Are Retrieved

Assisted Reproductive Technology Cycle Outcomes When Only 1 to 3 Oocytes Are Retrieved: a Retrospective Analysis of 3,671 Cycles in Poor Responders From a Large Volume Single Center

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06950476
Acronym
POR
Enrollment
3761
Registered
2025-04-30
Start date
2010-01-01
Completion date
2023-12-31
Last updated
2025-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility Assisted Reproductive Technology, Oocyte Retrieval

Brief summary

This is a monocentric retrospective observational study. The study focuses on the women who underwent Assisted Reproductive Technology (ART) cycles with poor ovarian response (POR), defined as \<4 oocytes retrieved. The objectives of the study are as follows: * Evaluate clinical pregnancy rate (CPR) and cumulative live birth rate (CLBR) in women with poor ovarian response. * Evaluate abortion rate in women with poor ovarian response. * Evaluate the influence of patient characteristics (age, Anti-Müllerian hormone \[AMH\] levels, Antral Follicle Count \[AFC\], Follicle Stimulating Hormone \[FSH\], Body Mass Index \[BMI\]) on women with poor ovarian response. To address the study objectives, data will be collected using a specific internal web-based database. All oocyte retrieval procedures performed at the Humanitas Fertility Center from January 2010 to December 2023 will be included in the evaluation. Outcomes will be expressed in terms of CLBR, CPR and Abortion Rate.

Interventions

PROCEDUREOocyte Retrieval

Oocyte retrieval is performed at the end of ovarian stimulation (OS) to collect oocytes for use in IVF or ICSI cycles.

Sponsors

Istituto Clinico Humanitas
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* The study database will include all women who underwent IVF treatment between 2010 and 2023 and were classified as poor ovarian responders, defined as those who retrieved fewer than 4 oocytes following controlled ovarian stimulation.

Exclusion criteria

* The study database will exclude women who underwent IVF treatment and retrieved more than 3 oocytes following controlled ovarian stimulation.

Design outcomes

Primary

MeasureTime frameDescription
Clinical Pregnancy Rate (CPR)January 2010 - December 2023This study aims to evaluate the ART outcomes in women classified as poor ovarian responders (POR), focusing on clinical pregnancy rate. The CPR is defined as the number of clinical pregnancies expressed per 100 initiated cycles.
Cumulative Live Birth Rate (CLBR)January 2010 - December 2023This study aims to evaluate the ART outcomes in women classified as poor ovarian responders (POR), focusing on cumulative live birth rates The CLBR is defined as the likelihood of achieving at least one live birth over a series of treatment cycles, including both fresh and frozen embryo transfers, originating from a single ovarian stimulation.
Abortion RateJanuary 2010 - December 2023This study aims to evaluate the ART outcomes in women classified as poor ovarian responders (POR), focusing on abortion rates. Abortion rate is defined as the presence of an empty gestational sac or a gestational sac containing an embryo or fetus without fetal cardiac activity, occurring within the first 12 6/7 weeks of gestation.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026