View clinical trials related to Anemia, Hemolytic.
Filter by:Autoimmune hemolytic anemia (AIHA) is a rare autoimmune disease (incidence <1/100,000 population) responsible for the destruction of red blood cells by the host immune system, notably through the action of autoantibodies. Apart from complications related to anemia, the occurrence of venous thromboembolism (VTE) in this population is frequent, estimated at 20-27%. The risk of VTE is highest during the period of hemolysis, especially during the first 3 months after the diagnosis of AIHA. This risk is 7.5 [4.7; 12.0] times greater than in the general population. No clinical predictive factor for VTE was identified and the usual factors (cancer, previous VTE, bed rest >3 days, surgery, age >70 years, heart or respiratory failure, myocardial infarction, stroke, obesity, hormone replacement therapy) were not considered. Several biological risk factors have been suggested (depth of anemia, bilirubin level, leukocyte count, antiphospholipid antibodies) but have not been confirmed in other studies. AIHA is therefore a risk factor for VTE in its own right, and the National Diagnostic and Care Protocol (NDCP) recommends the implementation of VTE prevention during acute hemolysis (Grade C). However, the value of this prophylaxis has never been prospectively evaluated and its duration is empirical. In practice, low-molecular-weight heparin (LMWH) is generally used during "flare-ups" of AIHA (diagnosis and relapse) in hospitalized patients, but is rarely continued beyond the hospital phase when VTE also occurs in ambulatory patients. Thus, we hypothesize that prolonged preventive anticoagulation during the 12-week risk period following diagnosis or relapse of AIHA could decrease the incidence of VTE. In orthopedic surgery, this strategy has been proven to decrease VTE from 50% to 10-15%. In certain high-risk medical situations, prolonged prophylaxis with apixaban has been shown to decrease the occurrence of VTE from 10.2% to 4.2% in solid cancers4 and from 4-11% to 2% in myeloma.
The purpose of this study is to evaluate the efficacy and safety of parsaclisib compared with placebo in participants with Primary Warm Autoimmune Hemolytic Anemia (wAIHA),
There is a deficiency in guidelines about the treatment of autoimmune hemolytic anemia in systemic lupus erythematosus (SLE), especially in refractory cases. Mycophenolate mofetil (MMF) showed promising results in those patients but still, the data available are in form of case reports. So, investigators will investigate the efficiency of MMF against a well-established treatment Rituximab in the treatment of refractory autoimmune hemolytic anemia in SLE patients.
the cyclosporine showed efficacy in many immune cytopenic diseases in the light of numerous case reports and retrospective data. This study compares cyclosporin versus rituximab in steroid-refractory anemia.
A single-arm study utilizing a 6 x 4 expansion design using daratumumab SC treatment for patients with refractory Autoimmune Hemolytic Anemia.
This is a single group treatment, Phase 2, open-label, study to evaluate the efficacy, safety and pharmacokinetics of rilzabrutinib in adult patients with wAIHA. All participants will receive rilzabrutinib orally. The screening period is up to 28 days, followed by a treatment period of 24 weeks for Part A. Participants who complete Part A and are deemed eligible for Part B will continue to receive the study medication for 52 weeks following the Last Patient In (LPI-Part B). There will be a 7-day safety follow-up period after receiving the last dose of study drug either in Part A (for those not eligible for Part B or early terminated) or Part B. The estimated total duration of the study is approximately 137 weeks (Parts A and B), including the follow-up period. For participants deemed ineligible for Part B, the total length of the study will be 29 weeks (Part A only), including screening and the follow-up period. In Part B, participants who temporarily stop rilzabrutinib treatment and maintain a durable response from W50 to W74, will have their EOS visit at Week 75. In this case, participation will be for 79 weeks including the screening period.
The primary objective of this study is to understand and characterize the health-related quality of life (HRQoL) and disease burden of adult participants with PK deficiency receiving routine clinical care. This study is an observational (i.e., noninterventional), longitudinal, multicenter, global registry for participants with PK deficiency, a rare nonspherocytic hemolytic anemia. This study will be open for enrollment for 2 years and all enrolled participants will be followed prospectively for up to 96 weeks. Data will be collected from participants who have provided informed consent and authorization pursuant to applicable laws and regulations.
This is a Phase 2, multiple ascending, dose-finding, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, health-related quality of life, tolerability, pharmacokinetic, pharmacodynamic, and immunogenicity, of up to 3 dose regimens of ALXN1830 administered subcutaneous(ly) (SC) in the treatment of WAIHA. This study will include 2 randomized, double-blind, placebo-controlled cohorts (Cohorts 1 and 2) to evaluate an 8-week treatment regimen, and an optional third open-label cohort (Cohort 3) to evaluate an alternative 12-week dosing regimen. Participants may continue participation in this study at the participant's and investigator's discretion in an open-label extension (OLE) period, consisting of monthly visits to observe participants for relapse, which will require going back on active treatment.
This cross-sectional prevalence assessment study involves a single blood draw in specific patient populations to assess for enzymatic and genomic evidence for acquired pyruvate kinase deficiency.
Although many studies investigated the prevalence and manifestations of HPV-B19 infection in patients with sickle cell anemia (SCA), thalassemia, and hereditary spherocytosis (HS) separately, there is limited information about the extent to which HPV-B19 infection leads to severe complications and chronic infection.