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About
The purpose of this study is to evaluate the effect of RBT-1 (stannous protoporphyrin [SnPP]/iron sucrose [FeS]) on preconditioning response biomarkers in subjects who are at risk for AKI following cardiac surgery.
Enrollment
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Volunteers
Inclusion criteria
Male or female subjects ≥18 years of age at Screening.
Able and willing to comply with all study procedures.
Stable kidney function per Investigator assessment and no known episodes of AKI during the preceding 4 weeks.
Scheduled to undergo non-emergent coronary and/or valve surgery(ies) requiring cardiopulmonary bypass, including:
Females and males of childbearing potential must agree to use 2 forms of contraception, with at least 1 being a barrier method, or abstain from sexual activity for 30 days following study drug administration.
Male subjects must agree not to donate or sell sperm for 30 days following study drug administration.
Exclusion criteria
Presence of AKI (KDIGO criteria) at the time of Screening.
Surgery to be performed without cardiopulmonary bypass.
Surgery to be performed under conditions of circulatory arrest or hypothermia with rectal temperature <28°C (82.4°F).
eGFR ≤20 mL/min/1.73m2 or need for dialysis.
Surgery for aortic dissection or to correct a major congenital heart defect.
Administration of iodinated contrast media within 24 hours prior to cardiac surgery or evidence of contrast-induced nephropathy prior to cardiac surgery.
Cardiogenic shock or hemodynamic instability within the 24 hours prior to surgery and requirement for inotropes or vasopressors or other mechanical devices, such as intra-aortic balloon counter-pulsation.
Requirement for any of the following within 7 days prior to cardiac surgery:
Known history of cancer within the past 2 years, except for carcinoma in situ of the cervix or adequately treated basal cell carcinoma of the skin.
Known or suspected sepsis at time of Screening or confirmed or treated endocarditis within 30 days prior to cardiac surgery.
Other current active infection requiring systemic antibiotic treatment.
Inadequate hepatic function, defined as total bilirubin or alanine aminotransferase or aspartate aminotransferase >2X the upper limit of normal at time of Screening or Child Pugh Class C liver disease or higher.
Any congenital coagulation disorder.
Asplenia (anatomic or functional).
History of photosensitivity or active skin disease that, in the opinion of the Investigator, could be worsened by RBT-1.
Known hypersensitivity or previous anaphylaxis to SnPP or any tin-based product.
Serum ferritin >500 ng/mL or those who have received IV iron within 28 days of Screening.
Pregnancy or lactation.
Treatment with an investigational drug or participation in an interventional study within 30 days prior to administration of study drug.
In the opinion of the Investigator, any disease processes or confounding variables that would inappropriately alter the outcome of the study.
Inability to comply with the requirements of the study protocol.
Primary purpose
Allocation
Interventional model
Masking
152 participants in 3 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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