There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
Acetazolamide, a carbonic anhydrase inhibitor, has received some attention as potential treatment for obstructive sleep apnea (OSA). It produces a metabolic acidosis by excreting bicarbonate, thereby stimulating baseline ventilation. Evidence suggests that acetazolamide primarily improves ventilatory control instability (expressed as loop gain), which is an important contributor to the pathophysiology of OSA. Few studies have assessed the efficacy of acetazolamide in patients with OSA. Since most of them had a small sample size and used different therapeutic dosages, clinical applications are currently limited. Therefore, this study aims to compare the effect of two acetazolamide dosages on the severity and pathophysiology of OSA.
Diabetes is a major co-morbidity in pancreatic insufficient cystic fibrosis (PI-CF) and associated with worse outcomes. While reduced β-cell mass contributes to the insulin secretory defects that characterizes cystic fibrosis-related diabetes (CFRD), other modifiable determinants appear operative in the emergence and progression of abnormal glucose tolerance towards diabetes. Identifying interventions to preserve β-cell function are crucial for delaying and potentially preventing CFRD development. In this study, we hypothesize that weekly administration of the long-acting glucagon-like peptide-1 (GLP-1) agonist dulaglutide will improve defective early-phase insulin secretion and improve glucose tolerance during a mixed-meal tolerance test.
The main objective is to study the feasibility of a new specific IgE assay using a bioluminescence technique in a pediatric and adult allergic population. For this, we will collect blood, and urine during a blood test scheduled for the follow-up of the patient.
Transcatheter Intra-septal RF ablation system (TIRA catheter with its supplemental devices) to treat hypertrophic obstructive cardiomyopathy.
Acute variceal upper gastrointestinal hemorrhage remains a hot potato in cirrhotic patients. The purpose of this study is to figure out whether urgent endoscopy (within 6h after gastroenterological consultation) is superior to non-urgent endoscopy (between 6h and 24h after gastroenterological consultation) in reducing re-bleeding for these patients. This is a single-centered, prospective, randomized, and controlled trial. 400 patients with suspected variceal bleeding will be randomized in a 1:1 ratio to receive endoscopic intervention either within 6h or 6-24h. Randomization is conducted by permuted block randomization stratified by age, systolic blood pressure (SBP), and pulse rate. The primary efficacy endpoint is rebleeding within 42 days after control of acute variceal bleeding. This trial will provide valuable insights into the efficacy between the urgent endoscopy group and the non-urgent endoscopy group.
Colorectal cancer (CRC) is the second cause of cancer-related death in western countries. CRC prevention and screening are major public health issues. Better knowledge of colorectal carcinogenesis could lead to better prevention. Gut microbiota (GM) is a complex community of bacteria, fungi, protozoa, viruses and bacteriophages which live in a symbiotic and epigenetic relationship with the host. GM can promote either digestive health or CRC through inflammatory and proliferative effects. Lynch syndrome (LS) is the most common familial CRC syndrome with a lifetime CRC risk of 52% in women and 69% in men. The risk of CRC depends upon type of altered mismatch-repair gene and environmental factors (diet, exercise, obesity, tobacco and alcohol intake, etc.). Regular surveillance including annual or biannual colonoscopy is recommended in LS patients. Chemoprevention has the potential to represent a cost-effective intervention in these high-risk patients and could allow a delay in colonoscopy surveillance. Regular low dose aspirin use is associated with a 20 to 30% reduction in the risk of sporadic colonic adenomas and CRC. The real benefit of aspirin is still to be consolidated. AAS-Lynch trial is an ongoing prospective multicenter (n=37), double-blind, placebo-controlled, randomized clinical trial, designed to investigate whether daily aspirin, at a dose of 100 or 300 mg compared with placebo, would decrease the occurrence or recurrence of colorectal adenomas in LS patients. The primary endpoint is the number of patients with at least one adenoma detected by chromo-endoscopy 48 months after initial colon clearance. At randomization and at the end of study, stool collection, blood collection, quality of life questionnaire, validated food frequency questionnaire (SU-VI-MAX2) and physical activity questionnaire are performed. The ongoing AAS-Lynch study allow accessing to a unique fecal collection in very well characterized LS patients including a comprehensive dietary evaluation at high risk for colorectal neoplasia and planned colonoscopy surveillance during a 48 months follow-up, exposed or not exposed to chronic low dose aspirin. The expertise of the scientific consortium with state of the art microbiota analysis, the comprehensive collection of data and the prospective design of the study will allow the evaluation of the true role of gut microbiota in CRC carcinogenesis.
Hepatocellular carcinoma (HCC) is a common disease in East Asia. Less than 20% of newly diagnosed patients can undergo radical resection. For those with unresectable BCLC C stage, transarterial chemotherapy and targeted therapy are recommend to prolong survival. Recently, FOLFOX (Oxaliplatin and 5-fluorouracil) based hepatic artery infusion chemotherapy (HAIC) exhibited high response rate for unresectable HCC. Transartery infusion of agents provide promising outcome when compared systemic infusion. Furthermore, our pilot study showed TACE combined HAIC (TACE-HAIC) had better tumor response, with low progression disease rate. Whether TACE-HAIC plus hepatic artery infusion PD-1 antibody would improve survival for unresectalbe BCLC C stage patients is still unknown. A single arm, phase 2 clinical trial is aimed to answer this question.
Hepatocellular carcinoma (HCC) is one of the most commonly malignant tumors around the world. Hepatic resection or liver transplantation is the radical method to cure the disease. However, less than 20% of newly diagnosed patients can undergo radical resection. Our latest study showed that 48% potentially resectable HCC received hepatectomy after transarterial chemoembolization plus FOLFOX-based chemotherapy infusion (TACE-HAIC) treatment. Recently, several clinical trials (LEAP-002) showed that PD-1 antibody and Lenvatinib had an ORR of 36% for advanced patients. The combination of TACE-HAIC with PD-1 antibody and lenvatinib, theoretically can significantly decrease the tumor burden and increase the hepatectomy rate. However, this hasn't been verified in clinical application. To identify a more effective and safety way for treating potentially resectable HCC patients, this study is designed to investigate TACE-HAIC plus PD-1 antibody and Lenvatinib will increase the resection rate for those patients.
The development of the retinal vascular network is completed during the third trimester of pregnancy and and the first 15 days of life of the newborn. This late maturation can be problematic in cases of preterm births and result in immature retinal vascularization, known as retinopathy of prematurity (ROP). Among the various factors influencing retinal vascular development, the tissue content of omega-3 polyunsaturated fatty acids (PUFAs) appears to be a crucial element. In a previous project, OMEGA-ROP, we showed a difference in the blood bioavailability of omega-3 PUFAs in infants born at less than 28 weeks of amenorrhea who develop ROP compared to healthy newborns with no retinopathy. This study also showed that mothers experienced variations in the blood levels of omega-3 PUFAs that were contrary to the types of variations observed in their children. This suggests a sequestration of omega-3 PUFAs in the mothers of children who will develop ROP. This new project aims to better understand the underlying molecular mechanisms by studying the expression levels of placental fatty acid receptors in relation to the development of ROP in newborns.
Obstructive sleep apnea (OSA) is a sleep related breathing disorder caused by repetitive collapses of the upper airways resulting in impaired breathing, oxygen desaturation and sleep disturbances. OSA has a massive impact on global health contributing directly to cardiovascular diseases, insulin resistance, metabolic syndrome and daytime fatigue and is repeatedly associated with an increase in motor vehicle accidents. The mainstay of treatment is still the use of positive airway pressure or surgery of the upper airways, but the success rate is persistently low. Surgery may be of help, but there is a lack of patient-specific options in both diagnostics and treatment. Mathematical and computational modeling is expected to provide significant insight into the airway function and onset of OSA. This study is part of a project that will rely on biomedical engineering to obtain the required insight to produce software tools for computer-aided diagnostics and treatment of OSA.