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Sperm, Exposure and Endocrine Disruptors

Endocrine Disruptors and Men's Reproductive Health: A Randomized Behavioral Intervention to Increase Environmental Health Literacy and Reduce Exposures Among Men With Low Semen Quality

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07703046
Acronym
SEED
Enrollment
100
Registered
2026-07-14
Start date
2026-06-15
Completion date
2027-03-01
Last updated
2026-07-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fertility, Male Fertility, Sperm Count, Low, Sperm Quality

Keywords

EDCs, Endocrine Disrupting Chemicals, Fertility, Sperm Quality, Sperm Count, Male Fertility

Brief summary

The proposed research aims to 1) measure male participants' urinary levels of EDCs and sperm quality before and after report-back and EDC reduction intervention and assess changes, 2) assess the extent to which MM's program (testing, curriculum, and report-back) alters participant environmental health literacy (EHL), readiness to change (RtC), and product/lifestyle choices, and 3) test the feasibility and acceptability of MM's program to male participants. The primary study subjects are adult men of reproductive age. The study aims to have 60 participants complete the study.

Detailed description

The SEED study hypothesizes that our report-back and intervention program will increase environmental health literacy and EDC-reduction behavior, reduce urinary EDCs, and improve semen quality in a sample of US men with low semen quality. And the intervention program will have a larger effect than report-back only. The study will consist of three Aims: 1) Measure male participants' urinary levels of EDCs and semen quality before and after report-back and EDC reduction intervention and assess change. 60 men, with previously established low semen quality, will be recruited from Fellow Health customers (a direct-to-consumer semen testing company). All participants' EDC exposures will be assessed via the MM test kit and receive personalized report-back. Subsequently, in a randomized-controlled trial, 30 participants (i.e. the intervention group) will engage in an 8-session online EDC environmental health literacy curriculum, as well as an online forum and coaching sessions, aimed to increase environmental health literacy and exposure reduction behavior. Thirty participants (i.e. the control group) will receive the report-back only. After completion of the curriculum, participants will retest urinary EDCs. Semen quality at these two time points will also be collected. Differences between the intervention and control groups will be assessed. 2) Assess the extent to which MM's program (testing, curriculum, and report-back) alters participant environmental health literacy, readiness to change, and product/lifestyle choices. Measures of environmental health literacy, willingness/readiness to reduce exposure, exposure reduction behavior, and sources of exposure will be assessed pre- and post-testing/intervention via previously validated surveys, including environmental health literacy and readiness to change (i.e. ready to reduce exposure), and lifestyle audits (including product use, diet, and lifestyle factors). Differences between the intervention and control groups will be assessed. 3) Test the feasibility and acceptability of MM's program to male participants. The usability, feasibility, and overall acceptability of the MM intervention program (i.e. testing, report-back, curriculum, coaching sessions) will be assessed in participants via the System Usability Score and other participant satisfaction questions. Further, focus groups and key informant interviews will be conducted in a subset of participants following the study to gather both qualitative and quantitative information to assess and improve the MM program.

Interventions

BEHAVIORALEDC Education Intervention

Participants receive a 14 module intervention program about endocrine disrupting chemicals and reducing exposures. Participants must complete at least 8 modules over the course of 8 weeks.

Sponsors

Million Marker Wellness, Inc.
Lead SponsorINDUSTRY
Fellow Health, Inc.
CollaboratorINDUSTRY
National Institute of Environmental Health Sciences (NIEHS)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Men, * Reproductive Age, * Good Health, * Non-Smoker * English-Speaking * No Occupational/Medical Risks * not using steroids or TRT/hormone replacement supplements * low sperm count=total motile count below 20 million/ml * tested by Fellow in the last 3 months

Exclusion criteria

* Women * Non-Reproductive Age * Poor Health * Smoker * Non-English Speaking * Occupational/Medical Risks * using steroids or TRT/hormone replacement supplements * total motile count over 20 mil/ml, tested by Fellow over 3 months ago

Design outcomes

Primary

MeasureTime frameDescription
Change in Environmental Health Literacy12-weeksThis surveys assesses EDC-specific environmental health literacy, based on questions in a 5-point Likert scale from 1 (strongly agree) to 5 (strongly disagree) or 1 (never) to 5 (always). Responses will be reverse coded during analysis as needed so that higher numbers reflect positive outcomes (higher EDC-EHL).
Change in Sperm Count12 WeeksChanges measured from Fellow Sperm Test- total motile count at the baseline and post intervention.
Change in Readiness to Change12 weeksThe Readiness to Change question asks participants to choose the response (sentence) that most accurately describes their current efforts and interest in limiting their exposure to harmful chemicals. Responses will be coded from 1 to 5 with 5 reflecting greater readiness to reduce risky behaviors.
Change in Metabolites12 weeksUrinary EDC metabolites include bisphenols, phthalates, parabens and oxybenzone.

Secondary

MeasureTime frameDescription
Change in Sexual Satisfaction (From the International Index of Erectile Function (IIEF) Survey)12-weeksMeasured pre and post intervention to Likert style questions from 1 to 5 on overall self reported sexual satisfaction with higher score indicating more satisfied. Two questions taken from validated survey questions from the international index of erectile function survey including "how satisfied have you been with your overall sex life?" https://www.browardurologycenter.com/pdf/International-Index-of-Erectile-Function-IIEF-Questionnaire.pdf
Change in Sexual Health Inventory (SHIM)12-weeksValidated survey measured pre and post intervention Add the numbers corresponding to questions 1-5. TOTAL: The Sexual Health Inventory for Men further classifies ED severity with the following breakpoints: 1-7 Severe ED 8-11 Moderate ED 12-16 Mild to Moderate ED 17-21 Mild ED
Product Usage12 WeeksChanges in # of reported product usage including personal care, household, and hair products with more products being worse and less products being better.
System Usability Score (SUS)12-weeksSUS is a validated survey measuring the usability of the intervention program at the end of intervention. The score is calculated from 0 to 100 with the greater the score indicating better perceived usability. Scores 60 and greater are considered acceptable.
Change in Stress12-weeksChange in stress (from validated survey Perceived Stress Scale (PSS-4)). Summarize 4 questions for a score of 0-16. Higher score equals greater stress.
Intervention CompletionAt the end of intervention (12-weeks)Number of total modules completed/requirements completed
Change in General Health12 weeksChange in self rated general health ( Behavioral Risk Factor Surveillance System (BRFSS)) "In general my health is" from very good to very bad (coded 1 to 5, 5 being very good). These variables are exploratory and may or may not be included in final analysis.
Change in Sleep12 weeksChange in sleep (BRFSS- Behavioral Risk Factor Surveillance System), including self reported hours of sleep and sleep quality from very good to very bad(coded 1 to 5, 5 being very good). These variables are exploratory and may or may not be included in final analysis.
Change in Physical Activity12 WeeksChange in physical activity (validated survey International Physical Activity Questionnaire (IPAQ)) using calculated MET (Metabolic Equivalent of Task) scores to classify into low, moderate or high physical activity (higher being better). MET score = (how many days × how many minutes × how hard the activity is), added across all activity types." Walking= 3.3 METs Moderate activity=4.0 METs Vigorous activity=8.0 METs These variables are exploratory and may or may not be included in final analysis.

Countries

United States

Contacts

CONTACTJenna Hua, MPH, PhD
Jenna@millionmarker.com510-305-5690
CONTACTChris Ribbens
Chris@millionmarker.com
STUDY_DIRECTORJohanna Rochester, PhD

Million Marker Wellness

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 15, 2026