CClinicalTrials.gg
Status unknownNCT01178463Updated Aug 10, 2010

Spermatogonial Stem Cells in Azoospermic Patients: a Comparison Between Obstructive and Non-obstructive Azoospermia

An observational study in Male Infertility, sponsored by Hillel Yaffe Medical Center. Status unknown at 1 site in Israel. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2010-08-10.

Sponsored by Hillel Yaffe Medical Center · Observational

The sponsor has not verified this record recently (last verified Aug 2010), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
25
Ages
18 Years and older
Sex
Male
01

Study summary

The researchers hypothesized that nonobstructive azoospermia might be associated with a reduction OF SSCs in seminiferous tubules as compared with obstructive azoospermia. Testicular sperm specimens that had been previously extracted from azoospermic patients will be paraffin embedded and stained with anti GPR-125. After antigen retrieval, the sections will be incubated with rabbit anti GPR125 followed by Cy3-conjugated anti rabbit secondary antibodies. Those found to be SSCs will be counted using light microscopy, and compared between patients with obstructive (n=11) and non-obstructive azoospermia (n=9).

02

Conditions studied

  • Male Infertility
03

In context

Infertility

2,506 studies on the registry are indexed under Infertility; 407 are open to participants now.

This study's planned enrollment of 25 is below the median of 200 across 714 observational studies indexed under Infertility.

Browse Infertility studies →

Lead sponsor

Hillel Yaffe Medical Center is the lead sponsor of 301 studies on the registry; 10 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Infertile male patients treated at the Hillel Yaffe Medical Center IVF Unit

Inclusion criteria

  • Azoospermic patients

Exclusion criteria

Exclusion Criteria:

  • Patients with sperm cells
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
25 participants (estimated)

Groups and cohorts

  • I. Obstructive Azoospermia

    Other: Biospecimen staining

  • II. Non-Obstructive Azoospermia Patients

    Other: Biospecimen staining

Interventions

  • OtherBiospecimen staining

    The sections will be incubated with rabbit anti GPR125 followed by Cy3-conjugated anti rabbit secondary antibodies.

  • OtherBiospecimen staining

    The sections will be incubated with rabbit anti GPR125 followed by Cy3-conjugated anti rabbit secondary antibodies.

06

What researchers measure

Primary outcomes

  1. SSCs were identified in both obstructive and nonobstructive azoospermia patients.

    Time frame: One year

07

Study locations

1 site
  • Hillel Yaffe Medical Center - IVF Unit
    Hadera, 38100, Israel
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 10, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01178463
Lead sponsor
Hillel Yaffe Medical Center
First posted
Aug 10, 2010
Start date
Jan 2010
Primary completion
May 2010
Completion
Oct 2010 (estimated)
Last update
Aug 10, 2010

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2010. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion