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The ureter is the tube that carries urine from the kidneys to the bladder. It is difficult for surgeons to see the ureter during abdominal surgery. This could lead to injuring the ureter which, although rare, could be serious.
ASP5354 is a potential new medical dye to help surgeons clearly see the ureter during surgery. ASP5354 is injected into the body and is detected by a type of camera called near infrared fluoroscopy, or NIR-F for short. Together they show live images of the ureter during surgery.
Before ASP5354 is available as a medical dye, the researchers need to understand how it affects the body.
In this study, the researchers will check how ASP5354 affects the body in adults up to 75 years old. The main aim is to learn how ASP5354 is processed by the body in people whose kidneys do not work well compared to healthy people. There will be 4 groups of people with different levels of how well their kidneys work.
This study will include a 3-night stay in a clinical research unit. People will be admitted to the clinic the day before they receive the ASP5354 injection. The study doctor will take their medical history. People will have an ECG to measure their heart rhythm, a medical examination, and will have their vital signs checked (pulse rate, body temperature and blood pressure). They will also give blood and urine samples for laboratory tests. For some women, this will include a pregnancy test. People will need to fast for several hours before receiving the injection.
The next day, people will receive 1 injection of ASP5354. They will continue to fast for a few hours afterwards. They will have an ECG and will have their vital signs checked. They will also give blood and urine samples for laboratory tests and the study doctors will check for medical problems.
During the next 2 days, people will give more blood and urine samples and the study doctors will check for medical problems. On the last day, people will also have their vital signs checked. If there are no medical problems on the last day, people can return home.
People will return to the clinic about 1 week later for a final check-up. They will have an ECG, a medical examination and have their vital signs checked. They will give blood and urine samples for laboratory tests. For some women, this will include a pregnancy test. The study doctors will also check for medical problems.
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Inclusion criteria
For US study sites:
For Japan study sites:
Participant has a BMI range of 17.6 to 30.0 kg/m^2 inclusive and weighs at least 50 kg for male participants and 40 kg for female participants at screening.
Female participant is not pregnant and at least 1 of the following conditions apply:
Female participant must agree not to breastfeed starting at screening and throughout the study period and for 30 days after study intervention administration.
Female participant must not donate ova starting at study intervention administration and throughout the study period and for 30 days after study intervention administration.
Male participant with female partner(s) of childbearing potential (including breastfeeding partner[s]) must agree to use contraception throughout the treatment period and for 30 days after study intervention administration.
Male participant must not donate sperm during the treatment period and for 30 days after study intervention administration.
Male participant with pregnant partner(s) must agree to remain abstinent or use a condom for the duration of the pregnancy throughout the study period and for 30 days after study intervention administration.
Participant agrees not to participate in another interventional study while participating in the present study.
Participant has normal renal function or participant has varying degrees of chronic kidney disease (CKD) as defined by the National Kidney Foundation and calculated by individual estimated glomerular filtration rate (eGFR) using the modification of diet in renal disease (MDRD) formula and individual body surface area (BSA):
Participant has adequate venous access.
Exclusion criteria
Additional criteria for participants with renal impairment:
Additional criteria for healthy participants with normal renal function:
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28 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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