PFAS Exposure and Immune Response to Vaccination in Adults

NCT ID: NCT06588530

Last Updated: 2025-12-30

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-04

Study Completion Date

2025-01-08

Brief Summary

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This clinical trial aims to investigate how exposure to Perfluorononanoic acid (PFNA), a type of per- and polyfluoroalkyl substance (PFAS), affects the immune response to the standard tetanus and diphtheria (Td) vaccine. The study focuses on participants from a community with known prior PFNA exposure through contaminated drinking water. The main question it aims to answer is:

* Does exposure to PFNA weaken the body's initial immune response, leading to lower levels of protective antibodies after vaccination?

Participants will:

* Receive Tetanus and Diphtheria (Td) booster vaccination
* Visit the study office 7 times over a 30-day period
* Have blood and saliva collected at each study visit

Detailed Description

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Conditions

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Environmental Exposure Vaccine Antibodies Adult Immunity Pollution; Exposure Vaccination Diphtheria Tetanus Innate Inflammatory Response

Keywords

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PFAS Perfluoroalkyl substances Polyfluoroalkyl substances Vaccine fluorocarbons tetanus-diphtheria vaccine prospective study Adaptive immunity innate immunity PFNA, Perfluorononanoic Acid

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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All participants

All participants will be vaccinated during their first study visit using TENIVAC (Tetanus and Diphtheria Toxoids Adsorbed).TENIVAC will be administered intramuscularly as recommended in the subject's deltoid muscle at a dose of 0.5 mL.

Group Type EXPERIMENTAL

TENIVAC

Intervention Type BIOLOGICAL

TENIVAC (Tetanus and Diphtheria Toxoids Adsorbed) is an active immunization for the prevention of tetanus and diphtheria in persons 7 years of age and older.

Interventions

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TENIVAC

TENIVAC (Tetanus and Diphtheria Toxoids Adsorbed) is an active immunization for the prevention of tetanus and diphtheria in persons 7 years of age and older.

Intervention Type BIOLOGICAL

Other Intervention Names

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Tetanus and Diphtheria Toxoids Adsorbed Td

Eligibility Criteria

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Inclusion Criteria

* Participated in the Paulsboro PFAS Health Study
* Provided a blood sample for the Paulsboro PFAS Health Study
* Weigh at least 110 pounds

Exclusion Criteria

* Currently Pregnant
* History of difficult blood draws
* History of adverse reaction to prior vaccinations
* Currently taking immune suppressants
* Recent dental surgery or dental procedure within 4 weeks of starting study
* Had a Td booster in the past 10 years
Minimum Eligible Age

18 Years

Maximum Eligible Age

89 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Rutgers, The State University of New Jersey

OTHER

Sponsor Role lead

Responsible Party

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Robert Laumbach MD, MPH

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Robert Laumbach, MD

Role: PRINCIPAL_INVESTIGATOR

Rutgers, The State University of New Jersey

Locations

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EOHSI Paulsboro Office

Paulsboro, New Jersey, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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Pro2024000644

Identifier Type: -

Identifier Source: org_study_id