Table-top water pitcher to reduce arsenic exposure for private-well users in New Hampshire
Developing a Hybrid Type 1 Effectiveness-Implementation Randomized Controlled Trial to Test a Table-Top Water Pitcher to Reduce Arsenic Exposure in Northern New England
This project will try a table-top water filter pitcher with adults who use private wells in Merrimack or Belknap counties to see if it lowers arsenic in their drinking water and urine.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 20 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | Trustees of Dartmouth College Academic / other |
| Locations | 1 site (Lebanon, New Hampshire) |
| Trial ID | NCT07103356 on ClinicalTrials.gov |
What this trial studies
This interventional pilot provides eligible private-well households with a free 12-cup pitcher filtration system and replacement cartridges. Participants with baseline well arsenic >5 μg/L will use the pitcher and replace cartridges, with water and urine arsenic measured at baseline, at Week 4, and during an eight-week sustainability follow-up. The study also collects data on uptake, barriers, facilitators, household income, and home ownership to identify factors linked to sustained use. Findings will provide preliminary evidence on feasibility and short-term effectiveness of this low-cost point-of-use intervention.
Who should consider this trial
Good fit: Adults (≥18) who live in Merrimack or Belknap county, New Hampshire, use a private well as their primary drinking water source, have well arsenic >5 μg/L, and will be the primary person maintaining the provided pitcher.
Not a fit: People already using or planning other arsenic mitigation within 12 weeks, those living outside the specified counties, or households with low arsenic levels are unlikely to benefit from this intervention.
Why it matters
Potential benefit: If successful, the pitcher could offer an affordable, easy-to-implement way for private-well households to reduce arsenic exposure.
How similar studies have performed: Some prior work shows that certain point-of-use systems can reduce arsenic, but effectiveness varies by filter technology and cartridge, so evidence specifically for table-top pitchers is limited.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or older * NH resident living in Merrimack or Belknap county * Use a private water system as primary drinking water source * Water arsenic \>5 micrograms/L upon testing * Confirm would be primary person in home maintaining the provided pitcher filter Exclusion Criteria: * Use or plan to use a mitigation strategy to reduce exposure to arsenic-contaminated drinking water in the next 12 weeks
Where this trial is running
Lebanon, New Hampshire
- Geisel School of Medicine at Dartmouth — Lebanon, New Hampshire, United States (Recruiting)
Study contacts
- Study coordinator: Caitlin Howe, PhD
- Email: caitlin.g.howe@dartmouth.edu
- Phone: 603-646-5419
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.