NCT06091969

Brief Summary

Old age, obesity, physical inactivity, environmental factors and genetics may contribute negatively to fertility in both males and females. In males, specifically, certain supplements, such as single antioxidants and trace minerals, have previously been shown to improve sperm function marginally. One hypothesis is that sperm function can be improved even further by combining several different types of supplements (e.g., amino acids, energy carriers, vitamins, antioxidants, and trace minerals) to target several age-related cell pathways, for example, oxidative stress, mitochondrial dysfunction, inflammation and cell energetics. This 3-month placebo-controlled, randomized clinical trial, aims to test the effects of a novel multi-ingredient supplement (Fertility Enhancer) that targets several age-related cell pathways on sperm function in overweight or obese and subfertile males.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
64

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jan 2025

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

First Submitted

Initial submission to the registry

October 16, 2023

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 23, 2023

Completed
1.2 years until next milestone

Study Start

First participant enrolled

January 1, 2025

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 2, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 2, 2026

Completed
Last Updated

October 10, 2024

Status Verified

October 1, 2024

Enrollment Period

1.1 years

First QC Date

October 16, 2023

Last Update Submit

October 8, 2024

Conditions

Keywords

Sub-fertilityInfertilityAntioxidantsSupplementsCreatineArginineVitaminsAgingOxidative stressInflammationDNAMitochondriaFragmentationATPWeight lossObesity

Outcome Measures

Primary Outcomes (6)

  • Percent change in body composition index from baseline to 3 months

    Lean mass/fat mass ratio by dual X-ray absorptiometry scan (body composition index; % change)

    Baseline to 3 months

  • Percent change in total fat mass from baseline to 3 months

    Total fat mass by dual X-ray absorptiometry scan (kg; % change)

    Baseline to 3 months

  • Percent change in sperm count/concentration from baseline to 3 months

    Sperm count/concentration (millions spermatozoa/mL semen)

    Baseline to 3 months

  • Percent change in sperm motility from baseline to 3 months

    Proportion motile sperm (%)

    Baseline to 3 months

  • Percent change in sperm morphology from baseline to 3 months

    Proportion normal sperm morphology (%)

    Baseline to 3 months

  • Percent change in sperm vitality from baseline to 3 months

    Proportion viable sperm (vitality) (%)

    Baseline to 3 months

Secondary Outcomes (19)

  • Percent change in sperm DNA fragmentation index from baseline to 3 months

    Baseline to 3 months

  • Percent change in sperm DNA 8-hydroxydeoxyguanosine from baseline to 3 months

    Baseline to 3 months

  • Percent change in sperm protein carbonyls from baseline to 3 months

    Baseline to 3 months

  • Percent change in sperm lipid peroxidation (4-hydroxynonenal) from baseline to 3 months

    Baseline to 3 months

  • Percent change in sperm antioxidant marker superoxide dismutase 1 from baseline to 3 months

    Baseline to 3 months

  • +14 more secondary outcomes

Other Outcomes (17)

  • Percent change in bodyweight from baseline to 3 months

    Baseline to 3 months

  • Percent change in body mass index from baseline to 3 months

    Baseline to 3 months

  • Percent change in lean mass from baseline to 3 months

    Baseline to 3 months

  • +14 more other outcomes

Study Arms (2)

Active multi-ingredient supplement (Fertility Enhancer; FE)

EXPERIMENTAL

Volunteers will be randomized in a double-blinded fashion into the experimental treatment group, which entails daily supplementation of an active multi-ingredient supplement designed to enhance fertility (Fertility Enhancer; FE) for 3 months.

Dietary Supplement: Active multi-ingredient supplement (Fertility Enhancer, FE)

Inactive placebo (Placebo; PLA)

PLACEBO COMPARATOR

Volunteers will be randomized in a double-blinded fashion into a placebo group, which entails daily supplementation of a calorie-matched, inactive placebo (Placebo; PLA) identical in flavor to the active supplement for 3 months.

Dietary Supplement: Inactive placebo (Placebo; PLA)

Interventions

Consuming a multi-ingredient supplement targeting multiple cell pathways daily for 3 months.

Active multi-ingredient supplement (Fertility Enhancer; FE)

Consuming an inactive placebo that is calorie-matched to the active supplement daily for 3 months.

Inactive placebo (Placebo; PLA)

Eligibility Criteria

Age25 Years - 50 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Males between the ages of 25-50 years diagnosed with subfertility through Ontario Networks of Experts in Fertility (ONE Fertility, Burlington, ON).
  • For diagnosis of male subfertility, the 2010 and 2021 World Health Organization criteria will be used for sperm count, motility, morphology and vitality.
  • Overweight and obese males according to body mass index (BMI) between the ages of 25-50 years.

You may not qualify if:

  • Smoking,
  • history and drug alcohol abuse,
  • BMI \> 30 kg/m2,
  • genital disease (cryptorchidism, current genital inflammation, or varicocele),
  • genital trauma or surgery to the male reproductive system,
  • known Y chromosome microdeletions or karyotype abnormalities (if known prior),
  • hepatobiliary disease,
  • significant renal insufficiency,
  • occupational exposures to reproductive toxins,
  • endocrine abnormality,
  • recent or current sexually transmitted infection,
  • use of cytotoxic drugs,
  • use of immunosuppressants,
  • use of anticonvulsants,
  • use of androgens or antiandrogens,
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mark Tarnopololsky

Hamilton, Ontario, L8N 3Z5, Canada

Location

MeSH Terms

Conditions

Infertility, MaleInfertilityInflammationWeight LossObesity

Condition Hierarchy (Ancestors)

Genital Diseases, MaleGenital DiseasesUrogenital DiseasesMale Urogenital DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsBody Weight ChangesBody WeightSigns and SymptomsOverweightOvernutritionNutrition DisordersNutritional and Metabolic Diseases

Central Study Contacts

Mark A Tarnopolsky, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
Volunteers will be given an identifier number and then randomized into placebo or active groups by an independent third party meaning that all participants, care providers and investigators will be blinded to the treatment allocations until the end of the study.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is a 3-month placebo-controlled, double-blinded, randomized clinical trial comparing an active supplement designed to enhance sperm function (Fertility Enhancer) to an inactive placebo (PLACEBO) in overweight or obese and subfertile males.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 16, 2023

First Posted

October 23, 2023

Study Start

January 1, 2025

Primary Completion

February 2, 2026

Study Completion

February 2, 2026

Last Updated

October 10, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

The study protocol, informed consent form and statistical analysis plan may be made available from February 2025 onward. This may occur along with the release of the deidentified results for publishing requirements and/or upon request by qualified researchers.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
The study protocol, informed consent form and statistical analysis plan may be made available from February 2025 onward. This may occur along with the release of the deidentified results for publishing requirements and/or upon request by qualified researchers.
Access Criteria
Access to trial data can be requested by qualified researchers engaging in independent scientific research studies.

Locations