Johns Hopkins Bloomberg School Of Public Health

This study tests whether giving a whole blood transfusion can help children under 5 with severe malaria and very low platelet counts survive. The trial is enrolling 132 children in Zambia. Researchers will compare death rates and changes in blood counts between those who receive …

This study tests a program called Hastiin Bidziil (Strong Man) to help Native American men ages 18 and older reduce their use of alcohol and drugs. About 160 men from Arizona communities will take part. The program focuses on cultural strengths and community support to lower subs…

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 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 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 called CHoBI7, which teaches diarrhea patients and their families about handwashing with soap, water treatment, and safe water storage while they are in the hospital. The goal is to see if this program helps prevent future cholera infections and diarrhe…

This study tests whether people who use opioids can be trained as peer educators to teach overdose prevention to their friends and family. Researchers will compare this approach to standard health education. The goal is to reduce overdoses and stigma. 600 participants in Baltimor…

This study compares three ways to encourage HPV vaccination: showing parents an informational video, a personal story from someone with HPV, or both together. Researchers will track which group has the most parents get their 11-17 year old children vaccinated. The goal is to find…

This study tests if 'Bright Horizons' can reduce binge drinking and drug use in Native American youth aged 10-24. The program teaches coping skills, emotion control, and goal setting. Participants live on or near the Fort Apache Indian Reservation and have had a recent binge drin…

This study tests a program called Family Spirit Strengths (FSS) designed to help American Indian and Alaska Native mothers and caregivers cope with stress, build skills, and connect with their culture. About 188 participants will either receive FSS or a nutrition education progra…

This study aims to see if a 7-day water, sanitation, and hygiene program can reduce cholera infections in neighborhoods where a cholera patient lives. About 3,140 people will take part, focusing on homes without running water. The program provides practical tools and education to…

This study aims to find the best way to encourage older adults (50+) to get recommended vaccines. Researchers will compare three approaches: showing only informational videos, only personal story videos, or a mix of both. The goal is to see which method leads to more people getti…

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 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 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 is testing a mobile app called SAFPAS to help food pantries in Baltimore recruit volunteers, offer clients a choice of foods, and communicate during emergencies. About 360 regular pantry clients will take part, and researchers will measure whether the app leads to heal…

This study is looking at whether people with gastroparesis (a condition where the stomach empties slowly) have problems with the pyloric sphincter, a valve between the stomach and small intestine. Researchers will use special tests like a balloon catheter and a stomach-sensing de…

This study is creating a registry of 250 people with symptoms of gastroparesis or functional dyspepsia, such as nausea, vomiting, and abdominal pain. Participants will fill out questionnaires, take a nutrient drink test, and have a gastric emptying scan. The goal is to collect da…

This observational study at Johns Hopkins looks at microplastic exposure in 40 mother-infant pairs in Baltimore. Researchers will test breastmilk, maternal blood, and infant stool for tiny plastic particles. They also track infant weight, length, and growth to see if microplastic…

This study is creating a national registry of 216 children, teens, and young adults (ages 8-25) with gastroparesis or similar symptoms. Researchers will track how symptoms like nausea and stomach pain change over 48 weeks using questionnaires and stomach-emptying tests. The goal …

This study looks at how things like pregnancy complications, birth weight, and early childhood exposures may influence long-term health for both mothers and children. Researchers are following 24,000 families to track conditions like asthma, allergies, obesity, and high blood pre…

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 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 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 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 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 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…