NCT06358794

Brief Summary

Non-obstructive azoospermia (NOA) stands as the most severe form of male infertility. However, due to the diverse nature of testis focal spermatogenesis in NOA patients, accurately assessing the sperm retrieval rate (SRR) becomes challenging. The current study aims to develop and validate a noninvasive evaluation system based on machine learning, which can effectively estimate the SRR for NOA patients. In single-center investigation, NOA patients who underwent microdissection testicular sperm extraction (micro-TESE) were enrolled: (1) 2,438 patients from January 2016 to December 2022, and (2) 174 patients from January 2023 to May 2023 (as an additional validation cohort). The clinical features of participants were used to train, test and validate the machine learning models. Various evaluation metrics including area under the ROC (AUC), accuracy, etc. were used to evaluate the predictive performance of 8 machine learning models.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,612

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2022

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2022

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2023

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

April 7, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 11, 2024

Completed
Last Updated

April 11, 2024

Status Verified

April 1, 2024

Enrollment Period

7 months

First QC Date

April 7, 2024

Last Update Submit

April 7, 2024

Conditions

Keywords

Machine learningPredictive modelSperm retrieval

Outcome Measures

Primary Outcomes (1)

  • SRR of micro-TESE

    the sperm retrieval success rate of microdissection testicular sperm extraction

    At the time after microdissection testicular sperm extraction

Study Arms (2)

Training cohort

2,438 patients diagnosed with NOA were included for model training and validation

Diagnostic Test: Machine learning-based predictive model

External validation cohort

174 participants from January 2023 to May 2023 were included as the external validation cohort for online platform

Interventions

The clinical features of participants were used to train, test and validate the machine learning models. Various evaluation metrics including area under the ROC (AUC), accuracy, etc. were used to evaluate the predictive performance of 8 machine learning models.

Training cohort

Eligibility Criteria

Age20 Years - 60 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Nonobstructive azoospermia patients who underwent microdissection testicular sperm extraction at the Reproductive Center of Peking University Third Hospital were respectively enrolled.

You may qualify if:

  • diagnosed with nonobstructive azoospermia
  • underwent microdissection testicular sperm extraction

You may not qualify if:

  • without intact clinical information
  • low data quality

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking University Third Hospital

Beijing, Beijing Municipality, 100191, China

Location

MeSH Terms

Conditions

Infertility, MaleAzoospermia, Nonobstructive

Condition Hierarchy (Ancestors)

Genital Diseases, MaleGenital DiseasesUrogenital DiseasesInfertilityMale Urogenital Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 7, 2024

First Posted

April 11, 2024

Study Start

June 1, 2022

Primary Completion

December 31, 2022

Study Completion

May 31, 2023

Last Updated

April 11, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

The raw clinical data are not publicly available. Processed nonsensitive data and analysis code are available from the corresponding author on reasonable request.

Locations