NCT07391397

Brief Summary

The goal of this observational study is to determine whether a personalized PFAS (per- and polyfluoroalkyl substances) blood test and educational report-back can improve environmental health literacy (EHL), empower exposure reduction behaviors, and promote cardiovascular wellness among rural adults. The main questions it aims to answer are: Does receiving a personalized PFAS test result and educational report-back increase environmental health literacy among rural participants and healthcare providers? Does increased EHL lead to greater readiness and actions to reduce PFAS exposure and improve wellness outcomes (e.g., reduced stress, improved sleep, increased sense of control) Researchers will compare changes from pre- to post-intervention among participants who receive the personalized PFAS report-back to see if there are measurable improvements in knowledge, behavior, and wellbeing. Participants will: Provide a mail-in blood spot sample for PFAS testing using a validated laboratory method (Relentless Health). Complete online surveys before and after receiving results to assess PFAS knowledge, exposure behaviors, and wellness outcomes. Receive a personalized PFAS report-back summarizing individual results, exposure sources, and tailored strategies for exposure reduction. Participate in focus groups or interviews (subset only) to provide feedback on report clarity, usability, and communication preferences. This study focuses on rural adult residents of Nevada, including underserved populations who may face limited access to PFAS testing or environmental health education. Insights from this Phase I project will guide a future randomized controlled trial evaluating the intervention's broader impact on cardiovascular health and rural health equity.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
110

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not 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

Study Start

First participant enrolled

September 1, 2025

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

December 1, 2025

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 5, 2026

Completed
23 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2026

Completed
Last Updated

February 5, 2026

Status Verified

January 1, 2026

Enrollment Period

5 months

First QC Date

December 1, 2025

Last Update Submit

January 29, 2026

Conditions

Keywords

PFASEnvironmental HealthEDCs

Outcome Measures

Primary Outcomes (2)

  • Change in PFAS Environmental Health Literacy

    Change in PFAS-specific environmental health literacy (pre- vs post-intervention). Participants complete a 12 question survey with Likert type response options. Three subscales (4 questions each for knowledge, attitudes, and behavior) are summed separately, each with a minimum value of 4 and a maximum of 20. A higher score is considered better.

    4 weeks

  • Change in response to a survey question assessing "Readiness to reduce PFAS exposure"

    Participants are asked to choose the sentence (from among 5 options) that most accurately describes their current efforts and interest in limiting their exposure to PFAS. Each sentence reflects one of 5 stages of change, in order from earlier to later (better): precontemplation, contemplation, preparation, action, and maintenance. The post-intervention stage is compared to the pre-intervention stage to identify increased, decreased, or no change in readiness to reduce PFAS exposure after completing the intervention.

    4 weeks

Secondary Outcomes (2)

  • Usability, clarity, and satisfaction with the report-back materials

    4 weeks

  • Identification of challenges to behavioral change

    4 weeks

Study Arms (1)

All Participants

OTHER

All participants who take the PFAS Blood Test

Behavioral: Blood Test and Report Back

Interventions

Participants take an at home blood test to test their PFAS levels and receive a report back with recommendations to reduce exposures.

All Participants

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 years
  • Residing or working in a rural area (verified via zip code and Health Resources and Services Administration classification)
  • Ability to understand English and complete study activities
  • Willingness to provide mail-in blood sample and complete pre- and post-surveys

You may not qualify if:

  • Age\<18
  • Residing in an urban or suburban area
  • Does not understand English or complete study activities
  • Not willing to provide a mail-in blood sample and/or complete pre- and post- surveys

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Million Marker

Berkeley, California, 94704, United States

Location

Related Publications (19)

  • Carignan CC, Bauer RA, Patterson A, Phomsopha T, Redman E, Stapleton HM, Higgins CP. Self-Collection Blood Test for PFASs: Comparing Volumetric Microsamplers with a Traditional Serum Approach. Environ Sci Technol. 2023 May 30;57(21):7950-7957. doi: 10.1021/acs.est.2c09852. Epub 2023 May 15.

    PMID: 37189231BACKGROUND
  • Rochester JR, Kwiatkowski CF, Neveux I, Dabe S, Hatcher KM, Lathrop MK, Daza EJ, Eskenazi B, Grzymski JJ, Hua J. A Personalized Intervention to Increase Environmental Health Literacy and Readiness to Change in a Northern Nevada Population: Effects of Environmental Chemical Exposure Report-Back. Int J Environ Res Public Health. 2024 Jul 11;21(7):905. doi: 10.3390/ijerph21070905.

    PMID: 39063482BACKGROUND
  • Boronow KE, Cohn B, Havas L, Plumb M, Brody JG. The Effect of Individual or Study-Wide Report-Back on Knowledge, Concern, and Exposure-Reducing Behaviors Related to Endocrine-Disrupting Chemicals. Environ Health Perspect. 2023 Sep;131(9):97005. doi: 10.1289/EHP12565. Epub 2023 Sep 8.

    PMID: 37682721BACKGROUND
  • Korfmacher KS, Brody JG. Moving Forward with Reporting Back Individual Environmental Health Research Results. Environ Health Perspect. 2023 Dec;131(12):125002. doi: 10.1289/EHP12463. Epub 2023 Dec 14.

    PMID: 38095662BACKGROUND
  • Gehle KS, Crawford JL, Hatcher MT. Integrating environmental health into medical education. Am J Prev Med. 2011 Oct;41(4 Suppl 3):S296-301. doi: 10.1016/j.amepre.2011.06.007.

    PMID: 21961679BACKGROUND
  • Finn S, O'Fallon L. The Emergence of Environmental Health Literacy-From Its Roots to Its Future Potential. Environ Health Perspect. 2017 Apr;125(4):495-501. doi: 10.1289/ehp.1409337. Epub 2015 Jun 30.

    PMID: 26126293BACKGROUND
  • Johnston J, Cushing L. Chemical Exposures, Health, and Environmental Justice in Communities Living on the Fenceline of Industry. Curr Environ Health Rep. 2020 Mar;7(1):48-57. doi: 10.1007/s40572-020-00263-8.

    PMID: 31970715BACKGROUND
  • Bullard RD, Wright BH. Environmental justice for all: community perspectives on health and research needs. Toxicol Ind Health. 1993 Sep-Oct;9(5):821-41. doi: 10.1177/074823379300900508.

    PMID: 8184445BACKGROUND
  • Hill-Briggs F, Ephraim PL, Vrany EA, Davidson KW, Pekmezaris R, Salas-Lopez D, Alfano CM, Gary-Webb TL. Social Determinants of Health, Race, and Diabetes Population Health Improvement: Black/African Americans as a Population Exemplar. Curr Diab Rep. 2022 Mar;22(3):117-128. doi: 10.1007/s11892-022-01454-3. Epub 2022 Mar 3.

    PMID: 35239086BACKGROUND
  • United States Environmental Protection Agency. Biden-Harris Administration Finalizes First-Ever National Drinking Water Standard to Protect 100M People from PFAS Pollution. https://www.epa.gov/newsreleases/biden-harris-administration-finalizes-first-ever-national-drinking-water-standard (accessed 2024-06-05).

    BACKGROUND
  • C8 Science Panel. C8 Probable Link Reports. C8 Science Panel. http://c8sciencepanel.org/prob_link.html (accessed 2024-06-05).

    BACKGROUND
  • Fenton SE, Ducatman A, Boobis A, DeWitt JC, Lau C, Ng C, Smith JS, Roberts SM. Per- and Polyfluoroalkyl Substance Toxicity and Human Health Review: Current State of Knowledge and Strategies for Informing Future Research. Environ Toxicol Chem. 2021 Mar;40(3):606-630. doi: 10.1002/etc.4890. Epub 2020 Dec 7.

    PMID: 33017053BACKGROUND
  • Blake BE, Fenton SE. Early life exposure to per- and polyfluoroalkyl substances (PFAS) and latent health outcomes: A review including the placenta as a target tissue and possible driver of peri- and postnatal effects. Toxicology. 2020 Oct;443:152565. doi: 10.1016/j.tox.2020.152565. Epub 2020 Aug 27.

    PMID: 32861749BACKGROUND
  • National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Division on Earth and Life Studies; Board on Population Health and Public Health Practice; Board on Environmental Studies and Toxicology; Committee on the Guidance on PFAS Testing and Health Outcomes. Guidance on PFAS Exposure, Testing, and Clinical Follow-Up. Washington (DC): National Academies Press (US); 2022 Jul 28. Available from http://www.ncbi.nlm.nih.gov/books/NBK582439/

    PMID: 35939564BACKGROUND
  • Wen ZJ, Wei YJ, Zhang YF, Zhang YF. A review of cardiovascular effects and underlying mechanisms of legacy and emerging per- and polyfluoroalkyl substances (PFAS). Arch Toxicol. 2023 May;97(5):1195-1245. doi: 10.1007/s00204-023-03477-5. Epub 2023 Mar 22.

    PMID: 36947184BACKGROUND
  • Liang Y, Zhou H, Zhang J, Li S, Shen W, Lei L. Exposure to perfluoroalkyl and polyfluoroalkyl substances and estimated glomerular filtration rate in adults: a cross-sectional study based on NHANES (2017-2018). Environ Sci Pollut Res Int. 2023 Apr;30(20):57931-57944. doi: 10.1007/s11356-023-26384-9. Epub 2023 Mar 27.

    PMID: 36971931BACKGROUND
  • Sunderland EM, Hu XC, Dassuncao C, Tokranov AK, Wagner CC, Allen JG. A review of the pathways of human exposure to poly- and perfluoroalkyl substances (PFASs) and present understanding of health effects. J Expo Sci Environ Epidemiol. 2019 Mar;29(2):131-147. doi: 10.1038/s41370-018-0094-1. Epub 2018 Nov 23.

    PMID: 30470793BACKGROUND
  • Cousins IT, Johansson JH, Salter ME, Sha B, Scheringer M. Outside the Safe Operating Space of a New Planetary Boundary for Per- and Polyfluoroalkyl Substances (PFAS). Environ Sci Technol. 2022 Aug 16;56(16):11172-11179. doi: 10.1021/acs.est.2c02765. Epub 2022 Aug 2.

    PMID: 35916421BACKGROUND
  • Gluge J , Scheringer M , Cousins IT , DeWitt JC , Goldenman G , Herzke D , Lohmann R , Ng CA , Trier X , Wang Z . An overview of the uses of per- and polyfluoroalkyl substances (PFAS). Environ Sci Process Impacts. 2020 Dec 1;22(12):2345-2373. doi: 10.1039/d0em00291g. Epub 2020 Oct 30.

    PMID: 33125022BACKGROUND

MeSH Terms

Interventions

Hematologic Tests

Intervention Hierarchy (Ancestors)

Clinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisInvestigative Techniques

Study Officials

  • Carol Kwiatkowski

    Million Marker Wellness

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Environmental Health Scientist

Study Record Dates

First Submitted

December 1, 2025

First Posted

February 5, 2026

Study Start

September 1, 2025

Primary Completion

January 31, 2026

Study Completion

February 28, 2026

Last Updated

February 5, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will share

Million Marker will disseminate research results and findings to the scientific community through presentations at scientific meetings and conferences and publications in academic journals, as well as through the mass media and online postings. The Principal Investigator of this study will make data and associated documentation/metadata available to external researchers under a data-sharing agreement in which a specific commitment is made to use the data for research purposes only, to not provide the data to a third party or distribute it in any form, and to properly acknowledge the source of funding for the collection of the data and the researchers involved in this study.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Starting six months after publication
Access Criteria
Researchers must submit an acceptable research plan (goals of the proposed research, the specific hypotheses to be examined, justification for research and methods), be affiliated with a recognized research institution, have demonstrated expertise in the area of the proposed research project, and receive independent approval from their governing institutional review board. Data will be available for use only to answer the specific question(s) indicated in the research plan. The researchers must provide a list of variable names and an outline of how research findings will be disseminated; and will be asked to sign a data-sharing agreement that commits to: 1) not attempt to identify any individual participant, 2) secure the data using appropriate software technology, 3) and destroy or return all data once analyses are complete. All final datasets will be de-identified. Final authorship on manuscripts will require review and approval by the Principal Investigators of this study.

Locations