Clinical Trials

The purpose of this study is to determine how often people with sickle cell anemia develop pulmonary hypertension a serious disease in which blood pressure in the artery to the lungs is elevated.

Men and women 18 years of age and older with sickle cell anemia may be eligible for this study. Participants will undergo an evaluation at Howard University s Comprehensive Sickle Cell Center in Washington, D.C. or at the National Institutes of Health in Bethesda, Maryland. It will include the following:

The purpose of this study is to learn if it is possible and safe to treat persons with severe sickle cell disease (SCD) by bone marrow transplant (BMT) from human leukocyte antigen (HLA) half-matched related donors. Preparation before transplant includes the chemotherapy drugs hydroxyurea, fludarabine, thiotepa, anti-thymocyte globulin, and cyclophosphamide. It also includes radiation.

Evaluation of AHSP concentration in total blood as a biomarker in adult and pediatric sickle cell patients

The goal of this research study is to reduce stress and improve sickle cell disease (SCD) pain control and sleep quality with less opioid use by determining the feasibility of an intervention with self-management combined intercessory and petitionary prayer, named Pray Until Something Happens (PUSH) stress reduction intervention using a mobile smart device. Currently, opioid analgesics are primarily used to treat SCD pain while self-managed behavioral modalities such as PUSH, are rarely used.

This is a randomized, double-blind, placebo-controlled study in sickle cell disease participants with a history of Vaso-occlusive Crises (VOCs). Approximately 60 participants with sickle cell disease will be enrolled and randomized: 12 participants in each of four active novel formulation rifaximin groups and 6 participants in each of 2 placebo groups.

To investigate retrospectively the longitudinal evolution of vascular defects in patients with typical or atypical forms of SCM.

L-glutamine has been approved in the US to reduce the acute complications of sickle cell disease (SCD) in adult and pediatric patients 5 years of age and older. The purpose of this single-center, open-label, phase 4 study is to evaluate the pharmacokinetic characteristics and safety of L-glutamine in patients with SCD.

Bearers of the sickle cell allele (S) are currently eligible for blood donations in Belgium. As blood donors are not tested for this allele, their heterozygous status is unknown. However, guidelines recommend to transfuse sickle cell patients with blood that is negative for the 'S' hemoglobin. To the investigator's knowledge, no study has been conducted to evaluate the impact of transfusion with blood originating from heterozygous donors on the transfusion performance and the improvement of clinical status of the sickle cell disease patients.

To develop a clinical severity index that could prospectively identify sickle cell disease patients who were at high risk for a turbulent clinical course and a poor prognosis.

Background:

Sickle cell disease is an inherited blood disorder. People with this disease have a problem with their hemoglobin. That is a protein in red blood cells that carries oxygen in the body. Some people with this disease are enrolled in research at NIH. Researchers want to learn more about the thoughts and opinions of those people. This may improve the way researchers explain clinical studies, risks, and benefits to people with the disease.

Objective: