
Chronic Kidney Disease - REAL Life Study in Alsace
Chronic Kidney DiseasesChronic kidney disease (CKD) is a public health problem and affects about 10% of the world's adult population with a constantly increasing incidence. The approach to CKD in France is centered on access to replacement therapy (dialysis, renal transplantation), the cost of which amounts to 4 billion euros (data from the REIN registry). Real-life data are essential to specify the characteristics of patients with chronic kidney disease and the factors associated with the evolution of CKD and the occurrence of complications in order to improve the management of CKD before the suppletion stage. Since October 2019, CKD at the severe stage (stage 4) and at the non-dialysis end stage (stage 5) is subject to an annual flat fee (Article L. 162-22-6-2 of the Social Security Code). The reimbursement of these lump sums by the health insurance is subject to the collection and transmission of certain medical data by the establishments.

Incidence and Clinical Burden of Erythropoietin Hyporesponsiveness - a Retrospective Database Analysis...
Chronic Kidney DiseaseThis study consists of two phases. The purpose of phase 1 is to identify incidence and patterns of erythropoiesis-stimulating agent (ESA) hyporesponsiveness and its associated factors in ESA treated patients. The purpose of phase 2 to identify outcomes associated with ESA hyporesponsiveness. Key aspects of the phase 2 study design will entirely depend on the results from phase 1.

Multi-omics Analysis of Chronic Kidney Disease
Potential Mechanisms Underlying the Microbiota-Gut-Kidney Axis in CKDChronic kidney disease (CKD) is a progressive disease with hidden epidemics and one of the most significant contributing factors to end-stage renal disease (ESRD), cardiovascular comorbidities, cachexia and anemia, which accounts for a nearly 1.2 million populations died per year.

Percutaneous Peritoneal Dialysis Catheter Insertion (PREDICT)
End-stage Kidney DiseasePeritoneal dialysis (PD) is the most frequent modality of home dialysis for patients with kidney failure. Most PD catheters are placed using a laparoscopic technique. This approach requires the availability of a qualified surgeon, time in the operating theater and general anaesthesia for the patient. Thus, the laparoscopic technique is less suitable for patients with severe heart failure or multimorbidity where general anaesthesia is not possible. PD catheters can also be inserted using a percutaneous strategy using a modified Seldinger technique. This strategy can be performed bedside under local anaesthesia, by the nephrologist, radiologist, a surgeon, physician assistant or qualified nurse. The availability of the percutaneous implantation strategy of a PD catheter in a nephrology center may accomodate more patients to receive a PD catheter insertion, including those who have a contraindication to general anaesthesia or need urgent PD. The PREDICT project aims to increase knowledge and competencies on percutaneous PD catheter insertions by training centers for this technique. By establisching a prospective registry, the outcomes of percutaneously inserted PD catheters, both in experienced and newly trained centers, will be assessed.

Genetic Testing in Autosomal Dominant Polycystic Kidney Disease
ADPKDIndividuals with a diagnosis of autosomal dominant polycystic kidney disease (ADPKD) often have a family history of the condition although up to 10-15% of cases are sporadic mutations. The investigators recently conducted an analysis of the investigators clinic population to determine percentages of individuals who have undergone kidney imaging and genetic testing and determined total numbers of patients eligible for tolvaptan and those currently active on tolvaptan. The study team found large racial discrepancies in usage of tolvaptan and found that more patients are eligible for tolvaptan than are currently taking the medication. Reasons for this are often due to patient perception about the medication rather than treatment failure. There is a strong medical need to understand reasons for underuse of this critical medication in this population. Among those with genetic testing, the study team found large disparities in ethnic background between individuals offered genetic testing who accept versus decline testing. The study team also found that those who choose to pursue genetic testing are more likely to have no family history of the condition, presumably because the diagnosis is more "surprising" to them and thus desire for verification by genetic testing, if possible, is greater. However, it is known that genetic testing can be an important component of understanding of disease biology in all patients with ADPKD, while also providing important clinical information in some cases as individuals prepare for living donor transplantation or family planning. The investigators seek to understand barriers to use of tolvaptan and genetic testing among individuals in the clinic population and their relatives across a wide range of racial and ethnic backgrounds. The investigators hypothesize that anxiety about genetic conditions in particular is a barrier to accepting testing. The investigators seek to understand the mental health aspects of the diagnosis of ADPKD. They will also evaluate changes in symptoms compared to pre-treatment after initiation of tolvaptan in eligible individuals using qualitative techniques. In so doing, the study team hope to improve care for current patients and also to expand the pool of the clinic population to include newly diagnosed family members ideally at early stages of disease.

APOL1 Genetic Testing in African Americans
Genetic PredispositionChronic Kidney Diseases1 moreRecent breakthroughs in medical genetics have discovered that a portion of kidney failure affecting the Black community is mediated by coding variants in a gene called apolipoprotein L1 (APOL1) - and that genetic variants, not race - account for increased risk. For APOL1 genetic testing to be applied in a manner that improves patient care and outcomes, more information is needed regarding associations of genotype with clinical parameters related to kidney health. Further, understanding patient perceptions about knowledge of the results of APOL1 genetic testing, and how that impacts patient engagement with management of hypertension and other renal risk factors, is urgently needed. In a Phase 1 pilot study, we offered APOL1 genetic testing to Black patients seen in our Hypertension and Nephrology clinics at Saint Louis University, an academic medical center that serves the local urban community, and surveyed patients on attitudes and concerns about APOL1 genetic testing. 144 participants were enrolled in Phase 1. In the Phase 2 study, we will advance this important work in our community by offering participation to a broader patient base, including patients seen in Internal and Family Medicine clinics, SLU Hospital, as well as to first-degree relatives and spouses of SLUCare participants. This expansion seeks to advance understanding of environment-gene interactions, improve risk prediction, and target management of potentially modifiable risk factors.

The Effects of the CF Carrier State on the Kidneys and Pancreas
Carrier StatePancreatic Disease1 moreThe overarching hypothesis is that CF carriers are at increased risk for developing most of the extrapulmonary conditions associated with CF compared to the general population. Specifically, it is hypothesized that this pilot data will detect subclinical evidence of pancreatic and kidney disorders among CF carriers. This will be determined by bringing CF carriers and controls to the CRU for one visit where they will answer survey questions and undergo laboratory testing. Additionally, they will collect urine and stool samples at home that will be sent to outside laboratories for testing.

Clinical Phenotyping Resource and Biobank Core of the Michigan O'Brien Renal Center
Chronic Kidney DiseaseGlomerulopathyChronic kidney disease (CKD) affects approximately 26 million Americans and disproportionately manifests in specific race and ethnic groups. Patients burdened with CKD have significant morbidity and reduced life expectancy. In addition to excessive suffering and lost productivity, the cost of managing this epidemic has reached $40 billion annually. The recognition that CKD is a major public health problem is reflected in the fourteen objectives outlined in Healthy People 2020 to begin to address the disease burden. Advancement in approaches to halt CKD progression has been slow despite growing global awareness of disease burden. This O'Brien Kidney Research Core will create opportunities for novel insights through characterization of tissue profiles that will define new disease markers and molecular pathways and will be available to all kidney investigators on the www. It will thereby fundamentally alter the starting point for research into prevention of progression of these kidney diseases. C-PROBE is an essential element of the center grant and presents a biomedical resource core consisting of: (1) clinical phenotyping (that is, systematic identification of observable physical and biomedical characteristics) of kidney disease patients including the accurate measurement of kidney function; and (2) a specimen BioBank which will store blood, urine and kidney tissue samples. A key component of C-PROBE is therefore that it contains a proven mechanism to collect samples from high risk groups including minorities, at the institutions of University of Michigan Health System, St. John Hospital, Wayne State University in Michigan, John H. Stroger Hospital in Illinois, Temple University Health System in Pennsylvania, and Levine Children's Hospital in North Carolina. This mechanism will feed the other Cores and provide biomedical investigators with approved projects the access to a dynamic pool of well characterized high risk kidney disease patients and their biological specimens to conduct high caliber translational research.

Proteogenomic Monitoring and Assessment of Liver Transplant Recipients
Liver TransplantHepatitis C2 moreThis study is being done to test blood, urine and tissue samples to see if this can help decide if CKD (Chronic Kidney Disease), AR (Acute Rejection) and HCV (Hepatitis C Virus) can be identified in its early stages. CKD damage to the kidneys, AR and HCV all lower the body's ability to function properly. Early detection of these conditions could assist with successful treatment and possibly lead to less repeat organ transplants.

Polycystic Kidney Disease Data Repository
Polycystic Kidney DiseaseAutosomal dominant polycystic kidney disease (PKD) is the most common inherited kidney disease, affecting more than 400,000 people in the U.S. and 5 million people worldwide. PKD is the 4th most common cause of kidney failure requiring dialysis and/or transplantation. Over half of all PKD patients develop kidney failure by age 60 years, although age of onset of kidney disease varies widely, even among members of the same family. Despite the fact this is a relatively common problem, relatively few patients have been studied for a sufficient period of time to fully understand how patients are affected over the course of their lifetime. The reason for creating this repository is to collect information about PKD so that the investigators may fully understand its complications, including high blood pressure, heart attack, and stroke. This information may also aid in the development of improved treatment strategies.