Zemplar

The goal of this clinical trial is to evaluate safety, tolerability, and how CTAP101 Capsules work to treat Pediatric Participants with Secondary Hyperparathyroidism, Stage 3 or 4 Chronic Kidney Disease and Vitamin D Insufficiency. The main questions it aims to answer are: 1. To assess the pharmacokinetics (PK) and Pharmacodynamics (PD) of CTAP101 Capsules 2. To investigate the safety and tolerability of CTAP101 Capsules Participants will take a daily dosage of CTAP101 Capsules at bedtime for 8 weeks.

The goal of this clinical trial is to learn if a home-based exercise program can be safely and feasibly used to improve physical activity and physical function in adults waiting for a kidney transplant. The study will also learn how acceptable and useful this program is for participants. The main questions it aims to answer are: * Can a remote exercise program be delivered successfully to people on the kidney transplant waiting list? * Do participants follow the exercise program and wear a physical activity tracker as asked? * Is the program safe and well tolerated? Researchers will compare two groups to see if the exercise program leads to higher physical activity and better physical function: * Usual pre-transplant care with a physical activity tracker * Usual pre-transplant care plus an online exercise program Participants will: * Wear a wrist activity tracker to measure daily physical activity * Complete a one-week baseline period before being assigned to a study group * Be randomly assigned (like flipping a coin) to one of two groups * If assigned to the exercise group, take part in online exercise classes at home for 12 weeks with reminders and feedback, and then another 12 weeks without reminders and feedback * Answer questionnaires about their health, activity, and experience in the study This study may help researchers learn how to better support people waiting for kidney transplant through safe, home-based exercise programs.

The goal of this open pilot is to practice using an intervention and surveys before a larger pilot stepped wedge clinical trial. The intervention the researchers plan to use is Chronic Kidney Disease (CKD) Topics, and it is a structured clinical agenda-setting intervention (SAS), or a customized list of discussion topics. The people the researchers are practicing using the SAS with have advanced CKD (stages 4-5), and many of them live in rural areas. The researchers will practice administering CKD Topics, along with survey questions. By doing the open pilot, the researchers will learn if they need to modify the steps they plan to take in the larger trial. The main questions the researchers aim to answer are: * Do the steps for identifying eligible participants work? * Do the steps for administering CKD Topics work? * Do the steps to administer survey questions work?

The goal of this crossover clinical trial is to explore the effects of red meat intake on serum and fractional urinary excretion of uremic toxins including trimethylamine N-oxide in people with chronic kidney disease.

The goal of this clinical trial is to learn about the safety (good or bad) of giving two AION-301 intravenous (IV) infusions, in adults with Stage 3 Chronic Kidney Disease (CKD). It will also help to learn if AION-301 reduces the symptoms of CKD and/or progression. The main questions it aims to answer are: * Do participants have medical problems (adverse events) after receiving two infusions of AION-301? * Do participants feel better (have reduced and/or delayed CKD symptoms)? * To learn about how AION-301 works in participants with CKD? Researchers will compare AION-301 to a placebo (a look-alike substance that contains no drug) to see if AION-301 works to treat Stage 3 CKD. Participants will: * Receive two infusions of AION-301 or placebo on two separate days (Day 0 and Day 4). * Receive oral vitamins at the clinic and to take at home for 90 days. * Visit the clinic for a minimum of 9 times, over 6 months for checkups and tests, but could be up to 12 times, over 24 months for checkups and tests.

The goal of this pilot clinical is to determine the feasibility of a fully powered clinical trial to determine the effectiveness of intraoperative parathyroid hormone (IOPTH) criteria in guiding surgery for secondary and tertiary hyperparathyroidism. The main question it aims to answer is: Is a fully powered trial investigating the role for IOPTH criteria in secondary and tertiary hyperparathyroidism feasible? The comparison group is surgery not guided by IOPTH. Participants will be randomized to undergo parathyroid surgery with one of four IOPTH criteria or a control arm that does not use IOPTH. All recruited patients are asked to complete quality of life and cognitive questionnaires, in addition to bloodwork during the study period.

In this pilot clinical trial, the investigators will recruit and randomize 120 patients with diabetes mellitus and chronic kidney disease (CKD/DM) stages 3 to 5 to a patient-centered and flexible Plant-Focused Nutrition in Diabetes (PLAFOND) diet with \>2/3 plant-based sources, which will be compared with a standard-of-care CKD diet, which is usually a low-potassium and low-salt diet, over a 6-month period. Through this study, the investigators will determine whether the plant-focused diet intervention is feasible for patient adherence, whether this diet is safe by avoiding malnutrition, frailty, and high potassium or glucose blood levels, and whether patient reported outcomes are favorably impacted.

This trial tests a special stem cell transplant followed by a kidney transplant in patients who need a new kidney. The goal is to prevent kidney rejection without lifelong medication by preparing the immune system to accept the new kidney.

This is a phase 3 trial of etelcalcetide in pediatric participants with secondary hyperparathyroidism (SHPT) and chronic kidney disease (CKD) on hemodialysis.