# Effect of Genetic Differences on Levels of Water Disinfection Byproducts in Blood After Showering

> **NCT00340535** · — · COMPLETED · sponsor: **National Cancer Institute (NCI)** · enrollment: 100 (actual)

## Conditions studied

- Normal Physiology

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00340535
- **Lead sponsor:** National Cancer Institute (NCI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2004-06-23
- **Primary completion:** 2004-10-01
- **Final completion:** 2021-03-04
- **Target enrollment:** 100 (ACTUAL)
- **Last updated:** 2021-03-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00340535

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00340535, "Effect of Genetic Differences on Levels of Water Disinfection Byproducts in Blood After Showering". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00340535. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*