Johns Hopkins Bloomberg School Of Public Health

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 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 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 blood changes between those who get a transfusion …

This study in Burkina Faso and Pakistan will enroll 3,200 pregnant women to see if taking daily calcium and iron-containing multiple micronutrient supplements together is as effective as taking them at different times. The goal is to simplify supplement routines without harming t…

This study looks at how to best provide multiple micronutrient supplements (MMS) to pregnant women through Uganda's health system. About 4,000 pregnant women will receive MMS in different bottle sizes to see which approach improves supplement use and clinic attendance. The goal i…

This study tests whether a program called Bright Horizons can help prevent binge drinking and drug use in Native American youth aged 10 to 24. The program teaches skills like managing emotions, coping with stress, and setting goals. Researchers will compare it to standard case ma…

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 pilot study tests whether a peer-driven program can help people who inject drugs in Baltimore reduce their risk of HIV, hepatitis C, and overdose. Researchers will identify high-risk injection settings and train peers to promote safer practices, like carrying naloxone and av…

This study tests a program called CHoBI7, which teaches handwashing, water treatment, and safe water storage to diarrhea patients and their families in Bangladesh hospitals. Researchers want to see if this program reduces diarrhea and improves hygiene behaviors compared to standa…

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 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 people who use opioids can be trained as peer educators to teach their friends and family how to prevent overdoses. Researchers will enroll 600 participants in Baltimore and compare those who receive overdose prevention training with those who get standar…

This study looks at whether watching personal stories about HPV, combined with informational videos, can encourage adults aged 50 and older to get vaccinated. Researchers will compare groups that see only informational videos, only personal stories, or both. The goal is to find t…

This study tests whether showing parents of unvaccinated 11-17 year olds a combination of personal HPV stories and informational videos increases the number of teens who get the HPV vaccine. Over 1,100 parents will be randomly assigned to watch either an informational video, a pe…

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 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 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 whether smartphone messages using cognitive behavioral therapy (CBT) or mindfulness techniques can help young adults (ages 18-30) quit smoking. Participants receive messages tailored to high-risk situations like stress or being around other smokers. The goal is t…

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 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 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 a simple guide called GRACE that helps family caregivers and home care aides share information and clarify their roles when caring for someone with Alzheimer's disease. About 100 caregivers and aides will use the guide and report how helpful it is. The goal is 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…

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 study aims to find out if people with gastroparesis (stomach paralysis) have abnormalities in the pyloric sphincter, the valve between the stomach and small intestine. Researchers will use special imaging tools to measure how flexible and open this valve is. The study will e…

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 is testing a mobile app designed to help food pantries recruit and schedule volunteers, offer clients a choice of foods, and communicate during emergencies. Researchers will roll out the app in 20 Baltimore food pantries and track whether clients receive healthier food…

This long-term study follows 24,000 mothers and their children born at Boston Medical Center to understand how early-life exposures—like pregnancy complications and birth outcomes—affect health later in life. Researchers will track conditions such as asthma, obesity, allergies, a…