View clinical trials related to Anemia, Sickle Cell.
Filter by:It is usually found that the blood pressure of adults with sickle cell disease is lower than in non-sickle cell patients. On the other hand, three recent prospective studies in children with sickle cell disease show prevalence of hypertension diagnosed by ambulatory blood pressure measurement (ABPM) ranging from 32 to 45% but on small numbers of patients (n = 54 at most). This hypertension appears to affect kidney function and has been previously associated with the risk of hemorrhagic stroke. It is therefore important to know the prevalence of hypertension in children with sickle cell disease and to determine its mechanisms. The factors which could explain this high prevalence are the increase in arterial stiffness and the increase in systemic vascular resistance linked to the alteration of the sympathovagal balance contributing to the regulation of vascular tone. Indeed, a disturbance of this balance with an increase in vasoconstrictor sympathetic tone has already been found. Hypothesis: In a subgroup of sickle cell children there is systemic hypertension (prevalence: main objective) linked to the alteration of the sympathovagal balance already established during sickle cell disease (increase in sympathetic tone and decrease in parasympathetic tone) affecting systemic vascular resistance (secondary pathophysiological objectives).
The investigators will conduct a hybrid type 1 effectiveness implementation trial to assess the effectiveness of acupuncture and guided relaxation on 360 people with Sickle Cell Disease (SCD), while observing and gathering information on implementation in three health systems: University of Illinois Hospital & Health Sciences System, University of Florida Health, and Duke University Health Systems. Each serves a large population with SCD, uses EPIC as their electronic health record, and has a Clinical and Translational Science Award (CTSA), which will help speed the translation of discovery into improved patient care. During the UH3 Implementation Phase, the 3-arm, 3-site randomized controlled trial will follow a quantitative modified SMART design, a pragmatic trial that evaluates adaptive interventions where the guided relaxation and acupuncture interventions respond to patients' characteristics and evolving pain status. The investigators rely on the Consolidated Framework for Implementation Research (CFIR) to plan, execute, and evaluate associated implementation processes. The use of complementary and integrative health (CIH) therapies by those with SCD to reduce pain and opioid use, to help enable them to better cope with their pain, is well known, but there are few studies that evaluate the effectiveness of these therapies, and none that also evaluates the implementation across multiple health care systems and patient populations as this study will. Aim 1: Determine the effectiveness of guided relaxation and acupuncture as compared to usual care in decreasing pain and opioid use for SCD patients. Hypothesis: At 6-weeks, SCD patients randomized to either CIH intervention will have a greater decrease in pain, opioid use, sleep, anxiety, depressive symptoms, and pain catastrophizing compared to SCD patients randomized to usual care. Aim 2: Identify the best adaptive intervention for improved outcomes by documenting outcomes among adaptive intervention sequences: (1) initiate guided relaxation and switch to acupuncture for non-responders at midpoint; (2) initiate guided relaxation and continue with guided relaxation for non-responders at midpoint; (3) initiate acupuncture and switch to guided relaxation for non-responders at midpoint or (4) initiate acupuncture and continue with acupuncture for non-responders at midpoint. Aim 3: Explore differences in response to the adaptive interventions by age and sex. Aim 4: Identify implementation facilitators, challenges, and solutions for structures and processes that contribute to the seamless integration of CIH therapies into the 3 health systems by conducting individual interviews with participants in the intervention group who responded to the intervention and those who did not. The investigators will also conduct focus groups with hospital personnel at 4 timepoints.
Vaso-occlusive crisis in Sickle cell disease might alter myocardial function through micro vascular obstruction. Evaluation of strain alteration using speckle tracking echocardiography is a non invasive technique that may allow us to observe such myocardial dysfunction. No such study has yet been conducted in patient hospitalised in intensive care unit. Our hypothesis is that strain alteration during vaso-occlusive crisis, if they do exist, can be correlated with other markers of myocardial injury such as troponin level or thoracic pain.
The purpose of this study is to evaluate the efficacy, safety and tolerability of treatment with EDIT-301 in adult and adolescent participants with severe sickle cell disease (SCD).
The purpose of this study is to determine if intravenous L-citrulline can abrogate an active vaso-occlusive crisis in sickle cell disease, resulting in decreased pain, reduction or elimination of opiate usage, and reduction or elimination of hospital admission. The applicant is developing intravenous L-citrulline (Turnobi™) for treatment of sickle cell disease (SCD). The current development program targets treatment of sickle cell-associated vaso-occlusive crisis (VOC) specifically. The aim of Part 1 is to identify the optimum dose regimens for the Part 2 of the trial which is a double-blind, placebo controlled adaptive 'pick-the-winner' design. This study will allow assignment of more subjects to the better treatment arm/s based on emerging data. The study, initially, will evaluate efficacy and tolerability of incremental doses of intravenous (IV) L-citrulline (Turnobi™) in patients with SCD while receiving standard of care therapy for VOC.
The trial of IV arginine therapy in children with Vaso-occlusive painful episodes (VOE) in sickle cell disease (SCD) is designed to further knowledge on efficacy and safety of the therapy.
This study is a first-in-human, single-arm, open-label Phase I/II study of nula-cel in approximately 15 participants, diagnosed with severe Sickle Cell Disease. The primary objective is to evaluate safety of the treatment in this patient population, as well as preliminary efficacy and pharmacodynamic data.
This study is design to assess the effects of an increase in nutritional intake on the bone mineral density of children with sickle cell disease, for 12 months.
As safety information pertaining to the long-term use of HU remains incomplete in spite of the first safety study (ESCORT-HU), an extension of the latter is proposed. ESCORT-HU Extension study aims at evaluating the long-term safety of Siklos® focusing on some questions regarding its safety when used in current practice in adults and paediatric patients treated with Siklos® and followed for up to 5 years. The study will focus on the following concerns : occurrence and incidence of malignancies, leg ulcers, male fertility impairment and serious unexpected AEs causally related to Siklos®.
Sickle cell anemia (SCA) is one of the most neglected diseases worldwide, according to the World Health Organization. In the adult population with SCA, the systemic effects of the disease, such as respiratory and peripheral muscle dysfunction, cause a decrease in quality of life. As a consequence, there is a concern about functional rehabilitation, since the aging of this population is already a reality in our environment. Thus, the objective of this project is to evaluate the effects of functional rehabilitation on quality of life in adult patients over 18 years of SCA. In this longitudinal intervention study, patients will be submitted to a three-month rehabilitation program. Before and after the intervention, patients will be submitted to the following assessments: spirometry; quality of life questionnaire - Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36); functional scale of joint integrity - Lower Extremity Functional Scale (LEFS); fatigue assessment scale - Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F); physical activity assessment questionnaire - International Physical Activity Questionaire (IPAQ); peripheral muscle assessment (handgrip and isometric dynamometry of the quadriceps muscle); and 6-minute walk test (6MWT). The protocol will consist of warm-up and cool-down exercises, muscle strengthening and endurance exercises, aerobic training, balance training and proprioception. Thus, it is expected that patients with sickle cell anemia will benefit significantly, with a consequent improvement in musculoskeletal function, pain and health-related quality of life.