Johns Hopkins Bloomberg School Of Public Health

This study looks at whether giving antibiotics to children with a certain type of Shigella infection (non-dysentery watery diarrhea) helps them recover faster and grow better. About 700 children in Bangladesh and Zambia will receive either azithromycin or a placebo. Researchers w…

This study tests whether giving a whole blood transfusion to children under 5 with severe malaria and very low platelet counts can improve their chances of survival. The trial involves 132 children in areas where malaria is common. Researchers will compare death rates and changes…

This study in Pokhara, Nepal, tests whether home visits by female community health volunteers combined with regular SMS messages can help people with high blood pressure, type 2 diabetes, or smoking habits. About 2,070 adults will be split into two groups: one gets the home visit…

This study tests a program called Hastiin Bidziil (Strong Man) to help Native American men reduce their use of alcohol and drugs. About 160 men aged 18 and older who live near Fort Defiance or Chinle, Arizona will take part. The program uses cultural strengths to support healthie…

This study looks at whether taking calcium and iron-containing multivitamins together in the morning is as safe and effective as taking them at separate times. Pregnant women in Burkina Faso and Pakistan will be randomly assigned to one of two schedules. Researchers will check bl…

This study tests a program called Family Spirit Strengths for American Indian and Alaska Native mothers who are pregnant or have young children and struggle with depression, anxiety, or substance use. Half the participants get the skills program; the other half get nutrition educ…

This study looks at whether taking part in a traditional Ojibwe ceremony called Gii'igoshimong can help American Indian adults cut down on substance use and improve their mental health. About 300 adults who identify as Ojibwe/Anishinaabe/Chippewa and have used substances in the p…

This study tests a diabetes program called Together Overcoming Diabetes (TOD), designed specifically for Lakota and other American Indian/Alaska Native communities. About 140 adults with type 2 diabetes who care for a young person aged 10-25 will take part. The program focuses on…

This study tests a program to help Black women in Baltimore start taking PrEP, a medication that prevents HIV. The program addresses challenges like intimate partner violence and racism that can make it hard to get PrEP. About 300 Black women who are HIV-negative and at risk will…

This study tests whether adding one-on-one support from a Diné peer navigator to a culturally-tailored tablet education program helps more Native American women get mammograms. About 200 women aged 40-74 on the Navajo Nation who haven't had a mammogram in the past year will take …

This study tests a program called FRESH that helps independently owned restaurants in low-income, minority neighborhoods offer healthier food options. Researchers will measure if regular customers improve their diet quality, which can lower cancer risk. About 756 African American…

This study tests whether a 7-day water, sanitation, and hygiene program can reduce cholera infections in neighborhoods where a cholera patient lives. About 3,140 people living near a cholera patient will receive soap, water treatment, and hygiene training. The goal is to see if t…

This study tests whether providing targeted water, sanitation, and hygiene (WASH) supplies and education to households of cholera patients can reduce the spread of diarrhea. About 2,900 people in South Kivu, DRC, will take part. The goal is to see if these simple measures can pre…

This study tests if a program called Bright Horizons can help prevent binge drinking and drug use in Native American teens aged 12-17. The program teaches skills like managing emotions, coping with stress, and setting goals. Researchers will track changes in alcohol use over 30 d…

This study looks at the best way to encourage parents to vaccinate their 11-17 year old children against HPV. Researchers will compare showing parents an informational video, a personal story video, or both, to see which approach leads to more teens getting the vaccine. About 1,1…

This study tests a 7-day program (CHoBI7) given to cholera patients in hospitals to help them and their families improve handwashing and water safety at home. Researchers will enroll 1,600 participants in rural Bangladesh to see if the program reduces diarrhea and infections. The…

This study aims to reduce the spread of HIV, hepatitis C, and drug overdoses among people who inject drugs in Baltimore. Researchers will identify high-risk areas and use trained peers to deliver prevention messages and tools like naloxone. About 285 current drug users will take …

This study looks at whether reducing social media use and replacing that time with exercise, or practicing mindfulness, can help college students feel less anxious and depressed. About 300 students who use social media heavily will be split into three groups: one that does nothin…

This study tests a school-based program to help Saudi high school students build healthy digital habits. About 2,500 students from 20 schools will take part, with some schools also offering a parent-focused program via WhatsApp. The goal is to see if these programs reduce screen …

This study tests whether people who use opioids can be trained as peer educators to teach their friends and family how to prevent overdoses. Researchers will enroll 600 adults in Baltimore who use opioids and ask them to recruit at least one person who does not use drugs. The goa…

This study looks at whether a simple guide can help family caregivers and home care aides work together better when caring for someone with Alzheimer's disease. About 100 participants—family members and paid aides—will use the guide and report how helpful it is. The goal is to se…

This study looks at how things like pregnancy complications and birth outcomes affect the long-term health of mothers and children. Researchers will follow 24,000 mothers and their babies born at Boston Medical Center. The goal is to understand links between early life factors an…

This study tests a program called Project YES+ for youth aged 15-21 living with HIV in Zambia. It combines peer mentoring with a mental health approach to reduce stigma related to HIV, violence, and depression. The goal is to see if this program is feasible and helps youth stick …

This study is for people with gastroparesis or functional dyspepsia—conditions that cause nausea, vomiting, belly pain, and feeling full too quickly. Researchers will track 250 adults over 48 weeks using questionnaires, a drink test, and stomach scans to better understand these d…

This study tests a computer program that works with electronic health records to help patients and their doctors make informed decisions about vaccines. Researchers will see if the tool increases the number of vaccines given at appointments. About 1,200 people with upcoming visit…

This study follows 216 children, teens, and young adults (ages 8-25) who have symptoms of gastroparesis, a condition where the stomach empties slowly. Researchers will track their symptoms and stomach function over 48 weeks using questionnaires and tests. The goal is to learn mor…

This study looks at whether watching personal stories from other older adults, combined with informational videos, can encourage people aged 50 and older to get their recommended vaccines. Researchers will compare three approaches: informational videos only, personal story videos…

This study is testing a mobile app designed to help food pantries in Baltimore offer healthier food options and better prepare for emergencies. About 537 food pantry clients and staff will use the app to see if it improves the nutritional quality of the food people receive. The g…

This study looks at microplastic particles in breast milk, mother's blood, and baby's stool. Researchers want to see if these particles are linked to a baby's weight and growth in the first months of life. About 40 mothers and their infants from Baltimore will provide samples and…

This study tests new tools to help pregnant women in Ethiopia get more prenatal checkups, take iron pills, and give birth in a health facility. About 1,024 pregnant women who are at least 5 months along and have moderate to high vulnerability will take part. Researchers will see …

This online study with 7,000 U.S. adults tests whether adding a warning label for ultra-processed foods to the FDA's nutrition box changes people's desire to buy those foods. Participants will look at different yogurt labels and answer questions about how likely they would be to …

This study looks at whether people with gastroparesis (slow stomach emptying) have problems with the pyloric sphincter, a muscle that controls food leaving the stomach. Researchers will use special tests to measure how well this muscle works in 150 adults with symptoms. The goal …

This study follows children with chronic kidney disease to track how their condition changes over time and what factors affect their health. Researchers will monitor kidney function, heart health, and other outcomes in about 1,300 participants. The goal is to better understand th…