Clinical Research Directory

Using Community Health Workers to Support Rural Care Partners of Seriously Ill Older Veterans

The investigators aim to support care partner's well-being and satisfaction with VA care and decrease their work burden by offering extra support from a trained Community Health Worker who will help connect the care partner to helpful resources in their communities and in the VA. The investigators also hope to help Veterans well-being and satisfaction with VA care by supporting their care partner more sufficiently allowing the care partner to focus on caregiving tasks.

Mortality Outcome of Controlled Hypertension

This pooled analysis investigates death outcomes in patients with pharmacologically treated and blood pressure-controlled hypertension. Despite documented BP control, some patients still suffer fatal cardiovascular, cerebrovascular, renal, or unexplained syndromes. This study aims to synthesize available evidence across study types to identify treatment pitfalls, contributing syndromes, and non-BP factors associated with these fatal outcomes. February 14th, 2026. Total search hits: 9,297 articles from your hypertension-mortality PubMed strategy Working dataset: 2,547 unique records. Screened so far: 50 (2.0%). Mostly excluded because: Not the right treatment strategy. No mortality outcome. Less often: wrong population.

Cooperative Assessment of Late Effects for SCD Curative Therapies

Sickle Cell Disease is one of the most common genetic diseases in the United States, occurring in approximately 1 in 400 births. Approximately 100,000 individuals are diagnosed with SCD in the United States. Mortality for children with SCD has decreased substantially over the past 4 decades, with \>99% of those born in high resource settings, including the United States, France, and England, now surviving to 18 years of age. However, the life expectancy of adults with SCD is severely shortened. Dysfunction of the heart, lung, and kidney is directly associated with decreased life expectancy. With the variety of curative therapies that are now available for SCD, long-term health outcomes studies are time-sensitive. As of now, efforts to determine long-term health outcomes following curative therapies for SCD have been limited. Though curative therapies initially should provide a cure for symptoms of SCD, there is the risk of late health outcomes to consider. Defining health outcomes following curative therapy is essential to improve personalized decision-making when considering curative versus disease-modifying therapeutic options. The primary goal of this study is to determine whether curative therapies for individuals with SCD will result in improved or worsening heart, lung, and kidney damage when compared to individuals with SCD receiving standard therapy. The investigators will also explore whether certain genes are associated with a good or bad outcome after curative therapy for SCD.

Advancing Health Information Exchange (HIE) During Inter-hospital Transfer (IHT) to Improve Patient Outcomes

Sub-optimal transfer of clinical information during inter-hospital transfer (IHT, the transfer of patients between acute care hospitals) is common and can lead to patient harm. To address this problem, the investigators will use key stakeholder input to refine and implement an interoperable health information exchange platform that integrates with the electronic health record and improves the reliability of and access to necessary clinical information in three use cases involving transfer of patients between sending and receiving hospitals with varying levels of affiliation and health record integration. The investigators will assess the effect of this intervention on frequency of medical errors, evaluate the use and usability of this platform from the perspective of those that interact with it, and use these results to develop a dissemination plan to spread implementation and use of this platform across other similar institutions.

Comparative Effectiveness and Safety of Four Second Line Pharmacological Strategies in Type 2 Diabetes Study

To perform an observational analysis to emulate a target trial (i.e., a hypothetical pragmatic trial that would have answered the causal question of interest) comparing the effectiveness and safety of sodium-glucose cotransporter-2 inhibitors (SGLT2i), glucagon-like peptide 1 receptor agonists (GLP-1RA), dipeptidyl peptidase-4 inhibitors (DPP-4i), and sulfonylureas (SU), at the class and individual agent level, in head-to-head comparisons in patients with type 2 diabetes (T2D).

OPTIMISation of Cardio-renal-metabolic-pulmonary Disease Guideline Adherence in High Risk Community Dwelling Individuals

Cardiovascular disease (CVD) causes a quarter of all deaths in the United Kingdom (UK). This is the single biggest area where the National Health Service (NHS) can save lives by detecting and treating risk factors early. Improvements in control of blood pressure, cholesterol, diabetes, kidney disease, as well as weight loss in individuals who are obese, have been shown to reduce the risk of CVD and death. The NHS has guidelines for investigations and treatments for risk factors recommended by the National Institute for Health and Care Excellence (NICE). Though it is known that better control of risk factors will reduce the risk of CVD the investigators do not know whether having extra appointments in primary care with heart specialists can lead to better treatment and better control of risk factors. The OPTIMISE trial (OPTIMISation of Cardio-renal-metabolic-pulmonary Disease Guideline Adherence in High Risk Community Dwelling Individuals) will compare patients who have consultations at a local General Practitioner (GP) practice by a cardiology professional to optimise the treatment of their risk factors (OPTIMISE) with those patients who receive standard care (Standard care). Standard care is patients being seen by their GP at routine care appointments. Participants in the OPTIMISE arm will be reviewed by the cardiology professional and recommended treatment in line with current NICE guidance. They will be seen at 3 months to review their treatment and potentially adjusted to ensure it meets NICE guidelines. Participants in the standard arm will have data related to their cardiovascular, renal, metabolic and pulmonary risk factors collected through their Electronic Health Record (EHR). At 6 months, all participants will be seen to find out changes to their prescribed medication and the effect of this on their blood pressure, cholesterol, blood sugar level, and body mass index (BMI). All participants will also complete a quality of life questionnaire prior to randomisation study and at 6 months to identify any differences between the arms and time points.

Planning Operative Strategy Using a Digital Renal Artery Clamping Tool

A proposed new tool ('DIPLANN-tool' - Digital Planning in Nephrectomy) for predicting kidney perfusion zones on a segmented 3D model during robot-assisted partial nephrectomy (RAPN) for localized renal cancer demonstrated high accuracy when planning selective clamping (SC) for RAPN. However, the tool's clinical added value still needs to be confirmed. Therefore, a randomized controlled trial using a study and control group is the preferred study design. Experimental group: the use of the DIPLANN-tool + conventional computed tomography (CT) imaging for preoperative planning and perioperative guidance during RAPN. Control group: the use of only conventional CT imaging for preoperative planning and perioperative guidance during RAPN (= current standard of care). The primary endpoint is planning and performing as planned a SC strategy. Secondary endpoints include patients' health, patients' insight and surgeons' benefits.

Systemic Lupus Erythematosus and Chlordecone Impregnation in Martinique

Chlordecone, an organochlorine pesticide, was widely used on banana farms in the French West Indies. Studies by Inserm and health authorities have confirmed the contamination of the food chain and the majority of the population of the French West Indies by chlordecone. Epidemiological studies conducted in the French West Indies have shown that exposure to chlordecone at the levels observed is associated with an increased risk of developing several diseases, including premature birth and prostate cancer. Many of the adverse effects associated with chlordecone could be explained by its estrogenic hormonal properties, and systemic lupus erythematosus (SLE) is an autoimmune disease whose sensitivity to estrogen is well known and is reflected by 1) its clear predominance in women, 2) its predominance in women of childbearing age, 3) its risk of exacerbation in the event of pregnancy. Chlordecone has the potential to modify the activity of SLE through mechanisms other than its pro-estrogenic effects. In rats, chlordecone was observed to induce alterations such as a reduction in lymphocyte count, thymic atrophy, and a decrease in splenic germinal centers and NK cells. In a mouse model of systemic lupus erythematosus (SLE), exposure to chlordecone results in increased production of immune complexes and anti-DNA antibodies, which are markers of disease activity and monitoring. Chlordecone also has a cellular effect that reduces the apoptosis of potentially auto-reactive lymphocytes and stimulates the production of GM-CSF, IL-2, TNF-alpha, and IFN-gamma. The latter is central to the pathophysiology of SLE. While experimental studies suggest a potential impact of chlordecone on SLE, no human studies have been conducted to date, and the chlordecone impregnation of lupus patients in Martinique remains unknown. The most serious and feared complication of SLE is kidney damage. Kidney damage from the disease and the necessary immunosuppressive treatments can lead to significant morbidity and mortality, including death and end-stage chronic renal failure. Therefore, it is important to manage the disease carefully. Suspected lupus nephritis is confirmed by a renal biopsy, which allows for formal diagnosis and categorization into several classes. Suspected cases are identified by a proteinuria to creatininuria ratio greater than 0.5 g/g (or 24-hour proteinuria greater than 0.5g). The objective of this project is to determine whether there is a positive association between lupus nephritis occurrence in patients followed by the internal medicine department of the Martinique University Hospital and organochlorine pesticide chlordecone impregnation.

Variation in Drug Interactions in People With HIV (PLWH) Aged 60 Years and Older.

Several cohort studies have recently shown a significant increase in the mean age of PLWH ( People Living With HIV) and in the prevalence of people in advanced age in the various cohorts, as a result of the marked increase in the mean life expectancy of these people achieved by modern antiretroviral combination therapies. However, the high prevalence of comorbidities exposes PLWH in old age to the need to take multiple drug treatments in addition to antiretroviral therapy, with the gradually increasing risk of unfavorable pharmacokinetic interactions between antiretroviral drugs and drugs taken to treat the comorbidities. This project consists of an observational, cohort, retrospective, single-center study and aims to evaluate the variation in the number and type of clinically significant drug interactions between antiretroviral therapy and concomitant therapies in PLWH aged \>60 years on stable antiretroviral therapy who, for any reason at the Clinician's discretion, have made a switch from ongoing antiretroviral therapy to the bictegravir/emtricitabine/tenofovir alafenamide regimen.

Evaluation of a Screening Strategy of Fabry Disease in Patient With Renal Biopsy

Fabry disease is genetic X linked disease, with annual incidence of 1 in 100,000 that is certainly underestimate the true prevalence of the disease. Renal biopsy in some patients does not allow determining the etiology of nephropathy. It is why investigators would like to evaluate the screening of Fabry patients from renal biopsy in patient with idiopathic nephropathy. Investigator hypothesize to detect one or more cases of patients with Fabry disease in local idiopathic nephropathy population with renal biopsy. That would allow reviewing and optimizing the target screening for Fabry Disease. The purpose would be to detect Fabry disease systematically in patients presenting a nephropathy of undetermined etiology in spite of the renal biopsy or presenting nonspecific histological characteristics. In Fabry disease with renal impairment, proteinuria is the first sign, usually occurring in the second decade. The evolution is progressively towards end-stage renal failure during the fourth decade. The presence of renal impairment is globally associated with a poor prognosis. Renal histology can be used to diagnose Fabry disease by revealing sphingolipid deposits identified by optical microscopy in the form of vacuoles in podocytes, distal tubule epithelial cells or in the media of the distal tubules. vascular walls. Resin inclusion with Toluidine blue staining is the staining of choice for visualizing lipid inclusions. However, this staining is not used as a first intention in routine. On the paraffin-fixed tissues, the vacuoles are less visible because they dissolve. Thus, the renal histological analysis sometimes reveals only non-specific damage to the various structures of the kidney and may not allow identification of very evocative inclusions. Under the effect of oxidative stress induced by sphingolipid deposits, lesions of tubulo-interstitial fibrosis settle quite early. At the level of the glomerulus, glycosphingolipids lead to the production of angiotensin II and TGF-β leading to an excess production of constituents of the glomerular basement membrane inducing its thickening and glomerulosclerosis. Arteries of all sizes are also the seat of intimal thickening and media accelerating the process of intrarenal ischemia. These lesions, which may appear isolated or synchronous, and nonspecific, are sometimes in the foreground and do not point in the first line to the etiological diagnosis of Fabry disease. Also, among the patients presenting a nephropathy of undetermined etiology in spite of the renal biopsy or presenting nonspecific histological characteristics, investigator propose to systematically detect the Fabry disease. Screening will be done in a selected population of renal biopsy patients using the dried blood spot kits.

PLATO - Medication Adherence in Transplant Recipients

Non-adherence with immunosuppressant drugs is a major reason for premature kidney transplant failure. Currently, patient education and compliance aids (e.g bubble packing) are commonly used to assist patients. This is a study involving patients expected to undergo a kidney transplant within 6 months. One group will undergo a one-month formal assessment of adherence before transplantation using mock immunosuppressant medication. Standardized surveys will also be administered to assess risk factors for non-adherence. A plan will be developed for use after the transplant. The other group will undergo usual care. Kidney function and rejection rates will be compared between two groups.

Prospective Urban Rural Epidemiology Study

To examine the impact of health determinants at the individual (e.g. health related behaviors) and societal level (e.g. environmental factors, health related policy, quality of health systems) on health outcomes (e.g. death, non-communicable disease development) across a range of socioeconomic and health resource settings. Additional components of this study will examine genetic factors for non-communicable diseases. This will be examined both through a cross sectional component, and prospectively (cohort component).

Outcomes of Children After Hospitalization in Intensive Care Unit

More than 10,000 children are hospitalized in an PICU every year in Canada. While most of them will survive their PICU hospitalization and their critical illness, some children will not recover to their pre-illness level. Some may develop behavioral, physical, emotional or developmental problems and difficulties at school. All these problems are elements that are part of the Pediatric Post-Intensive Care Syndrome (PICS-p). It is important to understand the elements (risk factors) that play a role in the development of PICS-p. In Canada, there is no systematic follow-up for children after they leave the PICU. Understanding what can cause PICS-p (risk factors) and how much PICS-p has an impact on children and their family is very important to the family well-being.

AUD Biomarkers Study (Proteomic and Genomic Analysis of Biospecimens)

Study purpose: to explore the entire spectrum of proteomic and genomic changes (amongst others) involved in diseases and in healthy/control populations. The Study is designed to discover biomarkers, develop and validate diagnostic assays, instruments and therapeutics as well as other medical research. Specifically, researchers may analyze proteins, RNA, DNA copy number changes, including large and small (1,000-100,000 kb) scale rearrangements, transcription profiles, epigenetic modifications, sequence variation, and sequence in both diseased tissue and case-matched germline DNA from Subjects.