Safety, Tolerability, Pharmacokinetics of Intravenous RPX2014 and RPX7009 in Healthy Adult Subjects

A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Single- and Multiple Ascending-dose Study of the Safety, Tolerability, and Pharmacokinetics of Intravenous RPX2014 and RPX7009 Alone and in Combination in Healthy Adult Subjects

RPX7009 (beta-lactamase inhibitor) is being studied in combination with a carbapenem (RPX2014) to treat bacterial infections, including those due to multi-drug resistant bacteria.

The worldwide spread of resistance to antibiotics among Gram-negative bacteria, particularly members of the ESKAPE group of pathogens, has resulted in a crisis in the treatment of hospital acquired infections. In particular, the recent dissemination of a serine carbapenemase (e.g., KPC) in Enterobacteriaceae in US hospitals now poses a considerable threat to the carbapenems and other members of the beta-lactam class of antimicrobial agents.

Rempex is developing a fixed combination antibiotic of a carbapenem (RPX2014) plus a new beta-lactamase inhibitor (RPX7009) which has activity against serine beta-lactamases, including KPC. This Phase 1 study will assess the safety, tolerability and pharmacokinetics of intravenous RPX2014 and RPX7009, administered alone and in combination, in healthy adult subjects.

Inclusion Criteria:

1. Healthy adult males and females, 18 to 55 years of age (inclusive) at the time of screening.
2. Body mass index (BMI) ≥ 18.5 and ≤ 29.9 (kg/m2) and weight between 55.0 and 100.0 kg (inclusive).
3. Medically healthy with clinically insignificant screening results (e.g., laboratory profiles, medical histories, ECGs, physical examination) as deemed by the PI.
4. Non-tobacco/nicotine-containing product users for a minimum of Dose Study 6 months prior to Day 1.
5. Voluntarily consent to participate in the study.
6. Sexually abstinent or agree to use two approved methods of contraception.

Exclusion Criteria:

1. History or presence of significant cardiovascular, pulmonary, hepatic, renal, hematological, gastrointestinal, endocrine, immunologic, dermatologic, neurological, or psychiatric disease.
2. Positive urine drug/alcohol testing at screening or check-in (Day -1).
3. Positive testing for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), or hepatitis C antibodies (HCV).
4. History or presence of alcoholism or drug abuse within the 2 years prior to Day 1.
5. Use of any over-the-counter (OTC) medication, including herbal products and vitamins, within the 7 days prior to Day 1. Up to 2 grams per day of acetaminophen is allowed for acute events at the discretion of the PI.
6. Blood donation or significant blood loss (i.e., > 500 mL) within 56 days prior to Day 1.
7. Plasma donation within 7 days prior to Day 1.
8. Participation in another investigational clinical trial within 30 days prior to Day 1.
9. Subjects who have any abnormalities on laboratory values at screening or check-in (Day -1).