Effect of RBT-1 on Reducing the Risk of Post-Operative Complications in Subjects Undergoing Cardiac Surgery

Inclusion criteria

• Male or female, ≥18 years of age at Screening.
• Planned to undergo non-emergent CABG and/or cardiac valve surgery requiring CPB; non-emergent surgery must allow for study drug infusion ≥24 but ≤48 hours prior to surgery.
• If female, subjects must use an effective method of birth control or abstain from sexual relations with a male partner (unless has undergone tubal ligation or hysterectomy or is at least 1 year postmenopausal) for the duration of their study participation.
• If male, subjects must use an effective method of birth control or abstain from sexual relations with a female partner for the duration of their study participation, unless the subject has had a vasectomy ≥6 months prior to infusion with study drug.
• Willingness to comply with all study-related procedures and assessments.

Exclusion criteria

• Surgery planned to occur <24 hours from the start of study drug infusion.
• Presence of acute organ dysfunction (AKI, acute decompensated heart failure, acute respiratory failure, stroke, etc) as assessed by the Investigator at the time of Screening.
• Surgery to be performed without CPB.
• Chronic kidney disease (CKD) requiring dialysis.
• Hypokalemia and/or hypomagnesemia within 24 hours prior to study drug infusion; electrolytes can be replenished if low.
• Cardiogenic shock or immediate requirement for inotropes, vasopressors, or other mechanical devices, such as intra-aortic balloon pump (IABP).
• Known history of cancer within the past 2 years, except for carcinoma in situ of the cervix or breast, early-stage prostate cancer, or adequately treated non-melanoma cancer of the skin.
• Known or suspected sepsis at time of Screening.
• Asplenia (anatomic or functional).
• History of hemochromatosis, iron overload, or porphyria.
• Known hypersensitivity or previous anaphylaxis to SnPP or FeS.
• Female subject who is pregnant or breastfeeding.
• Participation in a study involving an investigational drug or device within 30 days prior to study drug infusion or throughout participation in REN-007.
• In the opinion of the Investigator, for any reason, the subject is an unsuitable candidate to receive RBT-1.