View clinical trials related to Anemia, Sickle Cell.
Filter by:The purpose of this study is to use the Medication Adherence Reasons Scale (MAR-Scale) to determine the extent of non-adherence to specific medications indicated to treat cystic fibrosis, hemophilia (A or B), idiopathic pulmonary fibrosis, myasthenia gravis, and sickle cell disease, and to identify the top patient-reported reasons for non-adherence. Internal reliability of the MAR-Scale will also be assessed in each condition.
The purpose of the study is to assess the safety and tolerability of AG-946 in healthy volunteers after oral administration of single ascending doses (SAD) and multiple ascending doses (MAD) of AG-946 over 14 or up to 28 days of dosing, and to identify a range of doses that are safe and pharmacologically active in participants with sickle cell disease. The SAD and MAD parts of the study will be randomized and double-blinded, and will assess the safety, pharmacokinetics (PK), and pharmacodynamics (PD) of AG-946 as well as the effect of food (SAD only) on the pharmacokinetics (PK) of AG-946. The sickle cell disease (SCD) part of the study will be non-randomized and open-label, and is designed to identify 1 or more safe and tolerable dose(s) of AG-946 with potential activity in the treatment of participants with sickle cell disease (SCD).
This is a single arm pilot study of peripheral stem cell transplantation (PSCT) with ex vivo t-cell receptor alpha beta+(TCRαβ+) T cell and cluster of differentiation 19+ beta (CD19+ B) cell depletion of unrelated donor (URD) grafts using the CliniMACS device in patients with sickle cell disease (SCD) and beta thalassemia major (BTM).
Background: Sickle cell disease (SCD) is an inherited hemoglobin disorder. People with SCD have an increased chance for getting blood clots. Researchers want to see if a dietary supplement called isoquercetin can decrease levels of inflammation and blood clotting in people with SCD. Objective: To see how isoquercetin works in people with SCD. Eligibility: Adults age 18-70 years old who have SCD and are in a steady-state (have not experienced a pain crisis in the last 60 days and, if taking hydroxyurea, have not had a dose change in the past 90 days). Design: Participants will be screened with a physical exam, medical history, medicine review, and blood tests. Participants will be put in 1 of 2 treatment groups. They will take 4 capsules of isoquercetin or placebo all at once, by mouth, every day for 4 weeks. They will get a pill dispenser and keep a medicine diary. Participants may have an optional near infrared spectroscopy (NIRS) test to measure how treatment affects blood flow. In this test, probes will be placed on the skin to measure tissue oxygen level and blood flow. A blood pressure cuff placed on the arm will be filled with air briefly to restrict the blood flow in the arm (for up to 5 minutes) and then released. Participants may also be asked to breathe at a certain rate or hold their breath for as long as they can during measurements. Participants will take folic acid once a day. Participants will have an end-of-study drug visit. They will discuss any side effects and repeat some of the screening tests. They may have an additional optional NIRS test. About a month after the end of study drug visit, participants will be contacted by phone to see if they have any side effects. Those who do may have a follow-up visit. At this visit, they may have additional blood tests performed. Participation will last from 8 to 12 weeks.
This pilot research is aimed to assess the needs of patients and health workers involved in Sickle Cell Disease (SCD) management in Nigeria. To achieve this, a questionnaire will be administered to SCD patients or parents of children affected by SCD. Another questionnaire will be administered to doctors and nurses working with SCD patients. A focus group discussion with patients/parents willing to participate will be also scheduled. Participants from the following centres will be involved: Barau Dikko Teaching Hospital Kaduna State University, Ahmadu Bello University Teaching Hospital Zaria, National Hospital Abuja, Federal Medical Centre Katsina. Data will be qualitatively and quantitatively analysed and presented as aggregated data. Consent from all the study participants will be sought. Questionnaires will be coded and no personal data will be disclosed to authorised third parties.
Our long-term goal is to reduce stress and improve sickle cell disease (SCD) pain control with less opioid use through an intervention with self-management relaxation/distraction exercises (RDE), named You Cope, We Support (YCWS). Americans living with SCD suffer recurrent episodes of acute and chronic pain, both of which are exacerbated by stress. Building on the successes of our prior formative studies, we now propose a well-designed, appropriately powered study to test efficacy of YCWS on outcomes (pain intensity, stress intensity, opioid use) in adults with SCD. We propose to recruit 170 adults for a randomized controlled trial of the short-term (8 weeks) and long-term (6 months) effects of YCWS on outcomes (pain, stress, and opioid use). Stratified on worst pain intensity (<=5; >5), we will randomly assign patients to groups: 85 to Control (Self-monitoring of outcomes + alerts/reminders), and 85 to Experimental (Self-monitoring of outcomes + alerts/reminders + use of YCWS [RDE + Support]). We will ask participants to report outcomes daily. During weeks 1-8, we will send system-generated alerts/reminders to both groups via phone call, text, or email to facilitate data entry (both groups) and intervention use support (experimental). If the patient does not enter data after 24 hours, study support staff will contact him/her for data entry trouble-shooting (both groups) and YCWS use (experimental). We will time stamp and track participants' online activities to understand the study context and conduct exit interviews on acceptability of the staff and system-generated support. We will analyze data using mixed-effects regression models (short-term, long-term) to account for repeated measurements over time and utilize machine learning to construct and evaluate models predictive of outcomes. Specific aims are: Aim 1: To determine the short-term effects of YCWS. Aim 2: To determine the long-term effects of YCWS. Aim 3 (exploratory): Using machine learning, to develop and evaluate models that predict patient outcomes based on their group assignment and on their personal (e.g., self-efficacy, sex, education, family income, computer experience, etc.,) and environmental characteristics (e.g., distance from care, quality of cell connection, etc.).
Background: Sickle cell disease (SCD) is an inherited blood disorder. It results from a single genetic change (mutation) in red blood cells (RBCs). RBCs are the cells that carry oxygen to the body. In people with SCD, some RBCs are abnormal and die early. This leaves a shortage of healthy RBCs. Researchers want to learn more about how long RBCs live in the human body. Objective: To study how long RBCs live in people with and without SCD. Eligibility: People age 18 and older who either have SCD, had SCD but were cured with a bone marrow transplant, have the sickle cell trait (SCT), or are a healthy volunteer without SCD or SCT Design: Participants will be screened with a medical history and physical exam. They will give a blood sample. Participants will have a small amount of blood drawn from a vein. In the laboratory, the blood will be mixed with a vitamin called biotin. Biotin sticks to the outside of RBCs without changing their function, shape, or overall lifetime. This process is known as biotin labeling of RBCs. The biotin labeled RBCs will be returned to the participant via vein injection. Participants will give frequent blood samples. Their RBCs will be studied to see how many biotin labeled RBCs remain over time. This shows how long the RBCs live. Participants will give blood samples until no biotin labeled RBCs can be detected. During the study visits, participants will report any major changes to their health. Participation lasts for up to 6 months.
This research study is being done to assess the safety and effectiveness of isoquercetin to reduce levels of soluble P-Selectin in patients with sickle cell disease. Isoquercetin is a naturally occurring flavonoid-or vitamin. You will find quercetin and isoquercetin in fruits and vegetables. The names of the study drug involved in this study are/is: - Isoquercetin
A Study to Evaluate the Safety and Efficacy of IMR-687 in Subjects with Sickle Cell Disease
This study is evaluating a genome-edited, autologous, hematopoietic stem and progenitor cell (HSPC) product - OTQ923 to reduce the biologic activity of BCL11A, increasing fetal hemoglobin (HbF) and reducing complications of sickle cell disease.