5 Clinical Trials for Various Conditions
Clofazimine has shown effectiveness in the treatment of leprosy for many years. The World Health Organization and the National Hansen's Disease Program consider clofazamine to be standard therapy for treatment of multibacillary leprosy. In recent years, the availability of the drug has become limited and is currently available only under a research protocol and is considered "investigational." Use of Clofazamine in patients presenting with lepromatous leprosy is necessary for patients exhibiting nerve involvement or lesions resistant to other therapies. This drug will be used prospectively for patients who require treatment of leprosy as deemed appropriate by a Kaiser Permanente Southern California physician.
The purpose of this study is to see how healthy people and leprosy patients react to 2 new skin tests for detecting leprosy. The study will evaluate the new skin tests that may aid in measuring the number of people exposed to leprosy and enable its diagnosis and treatment at an earlier stage. Participant's ages 18-60 living in Kathmandu, Nepal will be enrolled. Stages A and B of the study will use the skin test in healthy volunteers. Stage C will use the skin test in high risk volunteers (including individuals with leprosy), healthy individuals in contact with leprosy patients and individuals with tuberculosis (TB, lung disease). Study procedures will include injections, physical exam, and blood testing. Injection sites will be checked several times during the participant's study involvement (5 hours of time spread over approximately 1 month). Volunteers screened for the study, which have leprosy or tuberculosis will be treated or referred for treatment.
The purpose of this study is to compare the safety, tolerability, and immunogenicity in healthy adult subjects of an investigational vaccine being developed for the prevention of leprosy. Two dose levels of the vaccine will be evaluated.
Background: When a person is exposed to something that causes an infection, the body sends a type of cell called CD8 T cells to attack it. Those cells are also found in breast milk. Nursing mothers pass these cells to their child, which helps the child fight infections, too. Researchers want to learn more about how CD8 cells work to keep people healthy. Objective: To learn more about how the human body fights off infections. Eligibility: People age 18 years and older who either have an infection, are suspected to have an infection, or recently got a vaccine. The household contacts of these people and people who have not been recently exposed to any infection are also needed. Design: Participants will be screened with a medical and health history and physical exam. They may have blood tests. The first study visit can be the same day as screening. It can be up to 3 months later. For those visits, screening tests will be repeated. At the first visit, participants will have blood collected from an arm vein. Participants who are breastfeeding may provide a small sample of breast milk. They may collect it at home or bring a pumping device to NIH to collect it. NIH can also provide a breast pump. Participants may be contacted for up to 1 year after the first visit to give samples of blood and/or breast milk. Up to 4 additional visits, which will each take about 1 hour, may be scheduled. A personal physician or local lab can collect blood from participants and ship it to NIH. Breast milk cannot be shipped.
This study will find how weight affects the dosing of a drug called dapsone. Currently, the amount of dapsone a patient receives is the same regardless of the patient's weight.