Condition
Oligozoospermia clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Oligozoospermia clinical trials that are recruiting, at sites in 3 countries (most in Spain (2), Taiwan (1), China (1)). By phase: Phase 1 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 3Countries
Newest Oligozoospermia clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Daily gazpacho to improve semen quality in men with reduced sperm parameters | — | Madrid, Madrid | Recruiting | Jan 29, 2026 |
| Probiotics to improve sperm count, motility, and morphology in men with low sperm quality | — | New Taipei City | Recruiting | Jan 15, 2026 |
| Evaluating the safety of STSP-0902 in healthy males | Phase 1 | Beijing, Beijing Municipality | Recruiting | Apr 29, 2025 |
| Evaluating a new method for sperm capacitation | — | Barcelona, Barcelona and 3 other locations | Recruiting | Dec 19, 2024 |
All recruiting trials (4)
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Daily gazpacho to improve semen quality in men with reduced sperm parameters
This study will test whether drinking a daily 330 mL serving of gazpacho for 12 weeks helps men with reduced sperm quality improve their semen parameters and lower oxidative stress.
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Probiotics to improve sperm count, motility, and morphology in men with low sperm quality
This study tests whether daily probiotic supplements can improve sperm count, motility, and morphology in men with unexplained low sperm quality.
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Evaluating the safety of STSP-0902 in healthy males
This study is testing the safety of a new injection called STSP-0902 in healthy men aged 18 to 50 to see how it affects their bodies.
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Evaluating a new method for sperm capacitation
This study is testing a new method called HyperSperm to see if it can improve sperm quality for men who are having trouble with fertility.
Related topics
Quick answers
How many Oligozoospermia clinical trials are recruiting right now?
4, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 3 countries. The most sites are in Spain (2 trials), Taiwan (1 trial), China (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.