Clinical trial Recruiting at 1 site Interventional Ages 21 and up Men only

Hyperbaric oxygen therapy for men with low sperm count

Official title: Hyperbaric Oxygen Therapy for Men Suffering From Infertility Due to Oligospermia: a Pilot Study

Run by Assaf-Harofeh Medical Center · NCT05842239 · Data updated 2026-11-12

This study is testing if hyperbaric oxygen therapy can help men with low sperm count improve their fertility.

Quick facts

Study typeInterventional
Ages21 Years and up
SexMen only
Enrollment15 (estimated)
SponsorAssaf-Harofeh Medical Center
Government
Drugs / interventionschemotherapy, radiation
Locations1 site (Tsrifin)
StatusRecruiting
StartedJanuary 20, 2024
Main results expectedDecember 1, 2030
Study endsDecember 1, 2030
Registry record updatedApril 22, 2026
Trial IDNCT05842239 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are men over 21 years old who have been diagnosed with idiopathic oligospermia and have had at least two sperm examinations showing low sperm counts.

Probably not a fit

Patients with active malignancies, severe chronic diseases, or those who have previously undergone hyperbaric oxygen therapy may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effects of hyperbaric oxygen therapy (HBOT) on men suffering from infertility due to oligospermia, which is characterized by a low sperm count. The research aims to determine whether HBOT can improve sperm count by enhancing mitochondrial function and telomere length, both of which are crucial for sperm health. Eligible participants will undergo HBOT and their sperm quality will be assessed through multiple examinations. The study seeks to provide insights into a potential new treatment for male infertility.

Why it matters

Potential benefit: If successful, this therapy could significantly improve fertility outcomes for men with oligospermia.

How similar studies have gone: While the application of HBOT for infertility is relatively novel, preliminary studies suggest potential benefits, though more research is needed to establish its efficacy.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age above 21 years
2. At least two sperm examination showing oligospermia (\<15·106 sperm/mL)
3. Diagnosis of idiopathic oligospermia.
4. Subject willing and able to read, understand and sign an informed consent

Exclusion Criteria:

1. Inability to attend scheduled clinic visits and/or comply with the study protocol
2. Active malignancy
3. Previous treatment with chemotherapy and/or radiation therapy
4. Substance use at baseline
5. Severe or unstable physical disorders or major cognitive deficits at baseline
6. HBOT for any reason prior to study enrolment
7. Chest pathology incompatible with pressure changes (including moderate to severe asthma)
8. Ear or Sinus pathology incompatible with pressure changes
9. Chronic disease like diabetes mellitus, ischemic heart disease etc.
10. Active smoking

Where it's running

  • The Sagol Center for Hyperbaric Medicine and Research Shamir Medical Center (Assaf Harofeh)
    Tsrifin, Israel
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.