Actively Recruiting

Age: 18Years - 50Years
All Genders
ID05328999

Fertility and the Microbiome: an Observational Study and Randomized Placebo Controlled Double-blind Pilot Trial

Led by Medical University of Graz · Updated on 2024-07-24

300

Participants Needed

1

Research Sites

89 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are investigating the relationship between the microbiome and human papilloma virus (HPV) status in couples experiencing subfertility. The study aims to understand how the female and male microbiomes might affect fertility and to explore the prevalence and impact of HPV on subfertility. This research includes an observational study and a randomized placebo-controlled double-blind pilot trial focusing on sperm quality and microbiome changes. The study will enroll 150 couples over 24 months, collecting samples from various sites including oral, urinary, stool, vaginal, uterine, and seminal areas for microbiome and HPV analysis. Additional tests will assess sexually transmitted diseases, hormone levels, and metabolic status. In the pilot trial, 30 subfertile men with specific sperm impairments will be randomly assigned to receive either probiotics or a placebo daily for 3 months, with sperm count and microbiome evaluations before and after treatment. Participants will undergo multiple assessments including microbiome analyses, hormone and metabolic testing, and HPV screening. Researchers will track outcomes such as time to pregnancy, pregnancy rates, live birth rates, and sperm DNA fragmentation over periods ranging from 1 month to 24 months. The study carefully monitors changes related to probiotic intake and collects extensive biological samples to understand fertility-related factors in subfertile couples.

CONDITIONS

Brief Title

Fertility and the Microbiome

Who Can Participate

Age: 18Years - 50Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Couples (males and females) with subfertility, primary or secondary infertility, or recurrent pregnancy loss
  • Age between 18 and 50 years
  • Ability to provide informed consent
Not Eligible

You will not qualify if you...

  • Unable to consent
  • Diseases or conditions that may affect the study
  • Use of probiotics or antibiotics within the last 3 months
  • Use of nutritional supplements
  • Previous chemotherapy or radiation therapy
  • Excessive alcohol intake
  • Smoking

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Monitoring

Duration - Up to 24 months

Participants provide microbiome and sample collections for oral, urinary, stool, vaginal, uterine, and seminal analysis, as well as testing for HPV, sexually transmittable diseases, hormone status, and metabolic status.

Visits occur as needed for sample collection and assessments over 24 months

Treatment

Duration - 3 months

Subfertile males with elevated DNA fragmentation index and asthenozoospermia receive either probiotics or placebo daily for 3 months to evaluate effects on sperm count and microbiome.

1 baseline visit and 1 visit after 3 months

Trial Site Locations

Total: 1 location

1

Medical University of Graz

Graz, Styria, Austria, 8036

Actively Recruiting

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Research Team

S

Sarah Feigl, Dr.

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

2

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Published Research Related To This Trial

Vaginal dysbiosis and the risk of human papillomavirus and cervical cancer: systematic review and meta-analysis.

Nele Brusselaers, Sadeep Shrestha, Janneke van de Wijgert...

https://pubmed.ncbi.nlm.nih.gov/30550767

The vaginal microbiome as a predictor for outcome of in vitro fertilization with or without intracytoplasmic sperm injection: a prospective study.

R Koedooder, M Singer, S Schoenmakers...

https://pubmed.ncbi.nlm.nih.gov/31119299

Infectious human papillomavirus virions in semen reduce clinical pregnancy rates in women undergoing intrauterine insemination.

Christophe Eric Depuydt, Gilbert Ghislain Gerard Donders, Ludo Verstraete...

https://pubmed.ncbi.nlm.nih.gov/31005311

The ReceptIVFity cohort study protocol to validate the urogenital microbiome as predictor for IVF or IVF/ICSI outcome.

Rivka Koedooder, Martin Singer, Sam Schoenmakers...

https://pubmed.ncbi.nlm.nih.gov/30526664