Polycystic Kidney Disease (PKD)

PeriPREVENT is a prospective, multi-centre, controlled, open-label, 1:1 randomized superiority trial with two parallel groups. In the intervention group patients will undergo a routine peripheral angiographic intervention (PVI) using a maximally contrast medium sparing strategy with an automated CO2 injection system including iodinated CM as bailout option in case of insufficient image quality or patient's intolerability of CO2 angiography. The control intervention is routine PVI using iodinated contrast media (CM) as standard of care. All patients are followed up until 12 months after the PVI.

Multicenter trial on the effect of the GnRH analogue leuprorelin on the growth of total liver volume in pre-menopausal women with very severe polycystic liver disease who, despite available therapy, experience growth and are heading for liver transplantation.

This is a prospective, multicenter sample collection study within a kidney transplant population. Whole blood samples and clinical data will be obtained from each participant at the time of indication biopsy (prior to the biopsy procedure). De-identified leftover retrospective gDNA screening samples from the paired donor(s) will also be obtained.

A prospective Danish national registry of percutaneous transluminal renal angioplasty (PTRA) in high-risk patients with renal artery stenosis selected on the basis of common national criteria, and with a common follow-up protocol for all three Danish centres offering PTRA

Cyst burden is an important determinant of outcomes in both autosomal dominant polycystic kidney disease (ADPKD) (1, 2) and autosomal dominant polycystic liver disease (ADPLD) (3, 4). Furthermore, mass symptoms (from liver and kidney volume) greatly impact upon quality of life in patients with severe disease. Cyst volume increases exponentially with age and results in the development of end-stage renal disease and hypertension, compromised quality of life due to compressive symptoms, and predisposes patients to cyst complications such as infection, hemorrhage, rupture, and torsion. Existing percutaneous treatments for cyst burden in ADPKD and ADPLD include cyst aspiration with or without sclerotherapy. Although frequently effective in the short-term, recurrence rates and the need for repeat procedures are high after these procedures (5, 6). Extrarenal disease (primarily liver disease) is the most important aspect of disease burden to ADPKD patients (7), and there are few effective treatments. Foam sclerotherapy (FS) with 3% Sodium Tetradecyl Sulfate (STS) a sclerosing agent. (Sotradecol®; Mylan, Galway, Ireland) is approved by the FDA for the management of varicose veins. While increasing cyst burden significantly compromises quality of life, the impact of FS on patient-reported outcomes has not been evaluated. In collaboration with the Center for Science of Healthcare delivery, we have developed a patient-reported outcome tool for polycystic liver disease capable of detecting symptom burden in individuals with polycystic liver disease that has been approved by the FDA as a patient-reported outcomes tool in research. Furthermore measurement of liver and kidney volumes can be performed in the Polycystic Kidney Disease Imaging Research Core that monitors organ volumes before and after interventions. At this time, patients are interested in procedures that will alleviate and palliate their mass symptoms but desire preliminary information on the procedural efficacy. We aim to report our experience with a new therapeutic advance - FS for the treatment of liver and kidney cysts at Mayo Clinic - and to determine the impact of this procedure on patient-reported quality of life measures and changes in organ volumes.

The ENVELOP study aims to assess cardiorenal outcomes following enavogliflozin administration compared with dapagliflozin or empagliflozin in Korean patients with type 2 diabetes, representing the first large-scale SGLT2 inhibitor outcome study targeting this population.

Autosomal Dominant Polycystic Kidney Disease (ADPKD) is the most common genetic cause of kidney disease that causes fluid-filled cysts to develop in the kidneys. The purpose of this study is to assess the safety and efficacy of ABBV-CLS-628 for the treatment of ADPKD in adult participants. ABBV-CLS-628 is an investigational drug being developed for the treatment of ADPKD. Participants are placed in 1 of 4 groups, called treatment arms. Each group receives a different treatment. There is a 1 in 4 chance that participants will be assigned to placebo. Around 240 adult participants with ADPKD will be enrolled at approximately 100 sites worldwide. Participants will receive IntraVenous ABBV-CLS-628 or placebo every 4 weeks for 92 weeks. Participants will be followed for up to 15 weeks. There may be higher treatment burden for participants in this trial compared to their standard of care . Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

The ADPKD Registry will be a patient-powered network of people with ADPKD. This data will inform new research to improve ADPKD patient outcomes, learn more about the patient journey and discover unmet medical needs. We collect data most relevant to your ADPKD diagnosis, its major symptoms and management, as well as key demographic data (no personally identifiable information is shared). A Registry keeps information in one place making it easier for researchers to utilize Registry information while still protecting the privacy of those who take part. The Registry will be hosted on a secure, online platform that patients can access using their home computers, tablets or phones. The purpose of the ADPKD Registry is to allow PKD patients to: * Connect with researchers and express interest in taking part in certain clinical studies for ADPKD, including studies of new medications and other treatments. * Take confidential health-related surveys. These surveys are aimed at better understanding of the health of people with PKD across their lifespans.

Early diagnosis in children with Alport syndrome (AS) with isolated hematuria opens a "window of opportunity" for early intervention. In the Alport mouse-model, this early intervention with the ACE-inhibitor Ramipril let to a delay of kidney failure by 111%. In order to observe treatment approaches for AS in humans, this registry has been established in 2006 to collect data over several generations of Alport families across Europe. In the meantime, this registry has been expanded to "Alport XXL" via the International Alport Alliance as a global effort across all continents. Small children with AS first develop microscopic hematuria (stage 0), proceeding to microalbuminuria (stage I), overt proteinuria (stage II), impaired kidney function (stage III) and finally can end up with kidney failure (stage IV), leading to impaired quality of life and premature death (stage V). This registry uses these stages to assess if earlier initiation of medications such as ACE-inhibition at earlier stages of disease is more effective than later therapy in delaying the time to disease progression (doubeling or tripeling of albuminuria), delaying loss of estimated glomerular filtration rate (eGFR), and if therapy improves life-expectancy. Untreated children with autosomal-recessive AS, digenic AS, and boys with X-linked AS typically all develop kidney failure early in life. Untreated girls with X-linked AS have a 30-40% risk of kidney failure, typically later in life (40 years or older). Untreated heterozygous patients with COL4A3/COL4A4 variants typically have a less severe phenotype (in former times also called "familial benign hematuria" or "thin basement membrane nephropathy" (TBMN)) and a 1-2% risk of kidney failure. Several interim results of this registry have been published since 2012. Alport XXL is designed and conducted as strictly observational, non-interventional data acquisition with prospective (and in parts retrospective) data analysis. Young patients with AS in disease stages 0,I,II from all over the world are included. The renewed version from 2021 has been re-approved by the Ethics Committee of the University Medical Center Göttingen as "Alport XXL", a further development of the former European Alport Therapy Registry (AZ 10/11/06). "Alport XXL" registry and data storage are in conformity with Good Clinical Practice guidelines. ICH-GCP-conform patient information and data exchange is secured by data transfer and cooperation agreements between all international trial centers and the coordinating principal investigator at University Medical Center Goettingen. At baseline, data collection including retrospective data is performed using a standardized, ICH-GCP-conform and pseudonymized questionnaire assessing age, sex, weight, height, mode of inheritance (X-linked, autosomal, compound heterozygous/homozygous, number of missense variants), family history, albumin in 24-hour or spontaneous urine, serum-creatinine, RAS-blockade with preparation and dose. Follow-up visits include same data than baseline plus blood-pressure, smoking-status, serum-potassium, eGFR, hearing loss and eye involvement, other symptoms such as leiomyomatosis, comorbidities and adverse events (adverse events of special interest defined as hyperkalemia, cough, hypotension, acute renal failure, malignancy, death).

Fetal renal failure (FRF) is a severe and life-threatening condition caused by congenital abnormalities or inherited kidney diseases. In the womb, when the kidneys fail to function properly, this leads to a condition called anhydramnios-a complete lack of amniotic fluid. Amniotic fluid is essential for the fetus's lung development, particularly during the canalicular phase of pulmonary development, which occurs between 16 and 28 weeks of gestation. Without sufficient amniotic fluid, the lungs cannot develop properly, resulting in a condition known as pulmonary hypoplasia. Severe hypoplasia has previously been described as almost always fatal, typically leading to neonatal death shortly after birth. In recent years, promising advances in fetal therapies have opened new doors for treating conditions that were once considered untreatable. One such intervention involves serial amnioinfusion, a procedure where sterile saline or another isotonic fluid is injected into the amniotic sac to restore fluid levels. Early studies, including the RAFT trial (Renal Anhydramnios Fetal Therapy), have demonstrated that this approach may improve survival rates by promoting lung development in fetuses with FRF. Building upon these findings, this study seeks to further evaluate the safety and effectiveness of serial amnioinfusion in improving neonatal outcomes for families facing this diagnosis. This study will enroll approximately 60 pregnant individuals carrying singleton pregnancies complicated by FRF and anhydramnios. Participants will be divided into two groups: an intervention group, which will receive serial amnioinfusion procedures as deemed appropriate by the study doctor, and a control group, which will not undergo interventions and will receive comfort care for their pregnancies. The primary goals of the study are to evaluate maternal safety, assess fetal survival to dialysis, and determine survival to kidney transplant eligibility. The amnioinfusion procedures will be performed at the Fetal Care Center by a team of experts in fetal procedures. To ensure patient safety, the study includes a rigorous monitoring plan to track any potential adverse events in real time. Data from imaging studies (e.g., ultrasound, echocardiogram, MRI) and laboratory biomarkers will be collected to evaluate fetal and maternal responses to the treatment. While the study focuses on improving outcomes for individual patients, it also has broader implications for science and society. By systematically analyzing the benefits and risks of serial amnioinfusion, this research could help refine treatment protocols and set the stage for new standards of care for FRF. For the families involved, participation in this study offers the possibility of improved survival for their children, with potential eligibility for life-saving kidney transplants in the future. This study represents a critical step toward addressing a condition that has long been considered untreatable. Through collaboration, innovation, and rigorous research, the team aims to provide hope for families affected by FRF.