Trustees Of Dartmouth College

This study tests whether a table-top water pitcher filter can reduce arsenic levels in drinking water for people with private wells in New Hampshire. Twenty adults with elevated arsenic in their well water will use the pitcher for 12 weeks. Researchers will measure arsenic in wat…

This study tests different methods to stop the spread of dangerous bacteria in operating rooms and reduce infections after surgery. About 6,000 people having hip, knee, or spine surgery will take part. The goal is to find the best way to keep patients safe from infections.

This early-stage trial is testing whether a generative AI chatbot called Therabot-CALM is usable and acceptable for people with cannabis use disorder who also have anxiety or depression. Fifteen participants will use the app for four weeks and give feedback through interviews and…

This study uses brain scans to explore how a placebo cream affects pain perception across different body sites. Researchers will apply a cream described as pain-relieving (though it is just a scrub) to healthy volunteers and measure their pain responses to heat. The goal is to un…

This study looks at how cannabis ads that claim to help with anxiety or depression affect what people buy. About 2,000 light-to-moderate cannabis users with mild to severe anxiety or depression will shop in a simulated online store. Some see ads with mental health claims, others …

This study tests whether a gentle, non-invasive brain stimulation technique called tTIS can reduce negative emotions like fear and pain. It also looks at how a caregiver's positive or negative words might boost or weaken that effect. About 196 healthy adults will take part, inclu…

This study looks at how having control over a virtual environment changes how people feel pain and anxiety. Twenty healthy adults will experience mild pain and anxiety in different virtual settings—some they can control, some they cannot. The goal is to understand how the brain a…