Clinical trials: Blood Platelets
Autoimmune Diseases, Lupus Erythematosus, Systemic
Comparative Autoantibody and Immunologic Cell Marker Study
The purpose of this study is to compare immune phenotype, function, and specificity of B lymphocytes from different developmental stages in autoimmune patients to B cells from infectious disease patients and healthy controls.
- Conditions
- Autoimmune Diseases, Lupus Erythematosus, Systemic, Communicable Diseases
- Trial name
- NCT02422875
- Where
- 3 sites in United States
- Volunteers
- 2,500 people, healthy volunteers welcome
- Sponsor
- Emory University
Bleeding
Reversibility of Dual Antiplatelet Therapy by Platelets
The objective of the study is to test the hypothesis whether or not autologous stored platelets are able to offset the antiplatelet effect of aspirin and clopidogrel as assessed by state-of-the-art platelet function assays.
- Trial name
- NCT01248351
- Testing
- autologous stored platelets, administration of autologous stored platelets
- Where
- Austria
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Non-alcoholic Fatty Liver Disease (NAFLD), NASH - Nonalcoholic Steatohepatitis
Integrated Phenotyping of the Gut-plAtelet-Liver AXIS in the Progression of Chronic Liver Disease (iGAL-AXIS)
Objective of the study Our working hypothesis is that platelets activated by gut-derived metabolites dock in the liver of NAFLD patients and amplify the inflammatory state by releasing pro-inflammatory cytokines/chemokines, which…
- Conditions
- Non-alcoholic Fatty Liver Disease (NAFLD), NASH - Nonalcoholic Steatohepatitis, Cirrhosis, Control Condition
- Trial name
- NCT06623084
- Testing
- Platelets characterization
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Stefania Basili
Immune Thrombocytopenia (ITP), Acute Ischemic Stroke
Longitudinal Cohort Study on Immune Thrombocytopenia Complicated With Acute Ischemic Stroke
Immune thrombocytopenia (ITP) is an acquired bleeding disorder mediated by immune-related platelet destruction and impaired platelet production.
- Trial name
- NCT07070193
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Peking University People's Hospital
Platelet Transfusion
Cold Apheresis Platelets in PAS
This is a platelet transfusion study. The purpose of this study is to measure the life span and quality of platelets stored in a refrigerator. Participants will give platelets by apheresis.
- Trial name
- CAPP (NCT02754414)
- Testing
- Apheresis platelet collection, Refrigerated storage of apheresis platelets in PAS/plasma, Infusion of aliquot of autologous radiolabeled platelets
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Bloodworks
Immune Thrombocytopenic Purpura
" Effect of Single-nucleotide Polymorphism of CD40 Gene rs1883832 C/T on the Risk of Immune Thrombocytopenic Purpura "
Immune thrombocytopenia is an acquired autoimmune disease, in which platelets are opsonized by auto-antibodies and destroyed by phagocytic cells .Genetic polymorphisms in the immune mediators have been suggested to play a pivotal…
- Trial name
- NCT05585944
- Testing
- Genotyping of rs1883832C/T related single-nucleotide polymorphism
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Sohag University
Thrombosis, Type 2 Diabetes Mellitus
Fatty Acid Regulation of Platelet Function in Diabetes
This study investigates the potential protective effects of altering fatty acid in the platelet as a method for prevention of platelet activation and thrombosis in type 2 diabetes mellitus.
- Trial name
- NCT02373332
- Testing
- omega-3 and -6 fatty acids and their 12-LOX oxylipins
- Where
- 2 sites in United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Wound Heal, Platelets; Defect
Effects of Platelet Concentrates on Palatal Wound Healing
Platelet concentrates used in palatal wound healing have been reported to accelerate wound healing and reduce postoperative patient discomfort.
- Conditions
- Wound Heal, Platelets; Defect, Periodontal Inflammation, Gingival Recession
- Trial name
- NCT04097509
- Testing
- AFG application on palatinal wound healing, i-PRF application on palatinal wound healing, control
- Where
- Turkey (Türkiye)
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Inonu University
Cardiovascular Diseases
COMT on Aspirin Platelets Effects (CAPE)
Specific Aim I: Examine the role of genetic variation in COMT on platelet function in a blinded, randomized, placebo controlled clinical trial of daily placebo or Aspirin (81mg) for 10 ± 3 days.
- Trial name
- CAPE (NCT03433586)
- Testing
- Aspirin 81 mg
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Von Willebrand Diseases, Major Constitutional Thrombopathy
Development of a Device for Evaluating Primary Hemostasis Under Whole Blood Flow Conditions
Currently, the exploration of primary hemostasis (a physiological phenomenon used to stop bleeding) is imperfect because it is based on targeted tests for platelets or von Willebrand factor, without taking into account blood flow…
- Conditions
- Von Willebrand Diseases, Major Constitutional Thrombopathy, Patient on Antiplatelet Drugs
- Trial name
- INDONESIA (NCT03773159)
- Testing
- Blood sampling
- Where
- 2 sites in France
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire Dijon
Thrombocytopenia, Isolated, Stem Cell Transplant Complications
AZA Combined With NAC for PIT After HSCT
Prolonged isolated thrombocytopenia (PIT) that is refractory to conventional treatments has remained a critical complication after allogeneic hematopoietic cell transplantation since decades years ago.
- Trial name
- NCT05126004
- Testing
- Azacitidine, N Acetyl L Cysteine
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- The First Affiliated Hospital of Soochow University
Atrial Fibrillation
Atrial Fibrillation and Characterization of Blood Platelet
Arterial thromboembolism constitutes a major risk of atrial fibrillation (AF) requiring antithrombotic therapy. Platelets and microparticles (MPs) are important for hemostasis and thrombosis, their role during AF is not well…
- Trial name
- FAPS (NCT02817815)
- Testing
- Electrocardiogram (ECG), Blood sampling from the cephalic vein, Blood sampling from the femoral vein
- Where
- France
- Volunteers
- 86 people, healthy volunteers welcome
- Sponsor
- University Hospital, Bordeaux
Rhinoplasty
Effect of Systemic Inflammatory Index and Systemic Immune Inflammation Index on Ecchymosis, Bleeding and Edema
Rhinoplasty is a cosmetic surgical procedure that is widely applied today and is characterized by edema in the postoperative period.
- Trial name
- NCT06649370
- Testing
- Hypotensive Drugs and/or Vasoactive Drugs
- Where
- Turkey (Türkiye)
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Tokat Gaziosmanpasa University
Prehypertension, Healthy
Effects and Mechanisms of Melatonin on Blood Pressure, Insulin Resistance, and Platelets
The investigators will be studying the effect of melatonin on blood pressure, insulin resistance, and platelets, along with possible reasons for how melatonin cases these effects.
- Trial name
- NCT03178396
- Testing
- melatonin
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Thomas Jefferson University
Alveolar Ridge Enlargement
Injectable Platelets Rich Fibrin Versus Hyaluronic Acid for Alveolar Ridge Preservation
Thirty-six patients (19 females and 17 males) that required implant placement in esthetic zone participated in this study and were blindly allocated 12 patients per group, all patients had ARP either with I-PRF with xenograft, HA…
- Trial name
- NCT05781529
- Testing
- Alveolar ridge augmentation with injectable platelets rich fibrin, Alveolar ridge augmentation with hyaluronic acid, Alveolar ridge augmentation with xenograft
- Where
- 2 sites in Egypt
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Revascularization of Immature Young Permenant Teeth
Compare Between the Effect of CGF and PRF on Revascularization of Immature Roots of the Mandibular Permanent First Molar
in this study investigators do revascularization technique to promote root growth of immature mandibular first permanent molar by using CGF and PRF from blood sample of patients
- Trial name
- NCT07460869
- Testing
- Revascularization/Conservative management
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Minia University
Healthy Volunteers
Anti-Platelet Drugs and Brain-derived Neurotrophic Factor (BDNF) in Human Serum and Plasma
The impact of anti-platelet drugs on the concentrations of Brain-derived neurotrophic factor (BDNF) in human plasma and serum is unknown.
- Trial name
- NCT01264640
- Testing
- Aspirin and Clopidogrel
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Rostock
Impacted Wisdom Tooth, Pain
Investigation of Effectiveness of Local Antibiotic With Platelet Rich Fibrin on Third Molar Surgery Outcomes In Vivo
The aim of this study was investigate the effectiveness of Local Antibiotic Applications With Platelet Rich Fibrin on Third Molar Surgery Outcomes In Vivo and In Vitro.
- Conditions
- Impacted Wisdom Tooth, Pain, Staphylococcus Aureus
- Trial name
- NCT05678296
- Testing
- Diagnosis, Analgesic, traditional osteotomies
- Where
- Cyprus
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ceren Melahat Donmezer
Idiopathic Thrombocytopenic Purpura
Role of CD11a in Pathogenesis of Primary ITP and Effect of Immunosuppressive Therapy on Its Level
1. The purpose of this study is to investigate the expression of CD11a on subpopulation of lymphocytes and compared its expression between ITP patients and healthy controls and explores its possible role in the pathogenesis of…
- Trial name
- NCT03864796
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University
Immune Thrombocytopenic Purpura ( ITP ), Systemic Lupus Erythematosus (SLE)
Modeling the Early Stages of Autoimmunity Through the Study of Immunological Thrombocytopenic Purpura and Juvenile Lupus
Immunologic thrombocytopenic purpura (ITP) in children is a pre-lupus condition if associated with the presence of anti-nuclear antibodies (ANA), providing a unique model for understanding the natural history of autoimmunity…
- Trial name
- PRELUDE (NCT07680010)
- Testing
- Blood sampling baseline and M3, Monitoring for SLE, Procedure/Surgery: Blood sampling baseline and M3 then each 6 months until 48 months
- Where
- 2 sites in France
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- University Hospital, Bordeaux