Fedovapagon is in clinical development as an oral treatment for nocturia in men with benign prostate enlargement. Nocturia is a common symptom in men who have enlarged prostates. Nocturia is generally defined as excessive or disruptive (either due to the volume of urine or frequency of trips to the toilet) night-time urination which disrupts sleep and impairs quality of life. There are currently no specific treatments for nocturia in men with enlarged prostates. Instead, nocturia is currently managed with drugs prescribed to treat the general symptoms of enlarged prostates, which are rarely effective in treating nocturia and can have side effects. As this is a common symptom in men with this condition, there is a clinical need for this type of treatment.
Fedovapagon works directly in the collecting ducts of the kidney by binding to, and activating receptors that causes the kidneys to reabsorb water from urine as it passes towards the bladder. If fedovapagon is administered before going to bed the result is less urine produced overnight. Therefore, if licensed, fedovapagon would be the first medicinal product specifically for the treatment of nocturia in men with enlarged prostates.
Vadadustat is in development for the treatment of anaemia in patients with chronic kidney disease (CKD). Anaemia is a condition where the body has fewer red blood cells (RBC) to carry oxygen throughout the body resulting in a decline in function of the body’s organs and tissues. Symptoms of anaemia in CKD patients include weakness, fatigue, headaches, dizziness and difficulty breathing. Anaemia is common in people with CKD because diseased kidneys produce less erythropoietin (EPO) which is needed to make RBCs. Current treatment for anaemia in CKD involves erythropoietin stimulating agents (ESAs) however, they may result in adverse side-effects so there is a need for safer treatment options.