A Two-part, Double-blind, Placebo-controlled, Phase I Study of the Safety, Tolerability and Pharmacokinetics of Single and Multiple Ascending Doses of SPR741 in Healthy Volunteers
Overview
- Phase
- Phase 1
- Intervention
- SPR741
- Conditions
- Healthy Volunteers
- Sponsor
- Spero Therapeutics
- Enrollment
- 64
- Locations
- 1
- Primary Endpoint
- Safety measures: respiratory rate
- Status
- Completed
- Last Updated
- 8 years ago
Overview
Brief Summary
The purpose of this study is to assess the safety and tolerability of single and multiple intravenous doses of SPR741 when administered to healthy adult volunteers.
Detailed Description
This Phase 1 First in Human study is designed to assess the safety, tolerability and pharmacokinetics of single and multiple intravenous doses of SPR741 when administered to healthy adult volunteers. This is a double-blind, placebo controlled, ascending dose, multi-cohort trial. A total of ninety-six healthy volunteers will be enrolled in 12 cohorts. The study will be conducted in two phases: a single ascending dose (SAD) phase, followed by a multiple ascending dose (MAD) phase. In SAD, participants will receive one dose of SPR741 or placebo. In MAD, participants will receive multiple doses of SPR741 or placebo for 14 consecutive days. In both parts, sequential cohorts will be exposed to increasing doses of SPR741.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Healthy adult males and/or females (of non-child bearing potential), 18 to 55 years of age (inclusive) at the time of screening;
- •BMI ≥ 18.5 and ≤ 29.9 (kg/m2) and weight between 62.5 and 100.0 kg (inclusive) for Cohort 1 only and 55.0 and 100.0 kg (inclusive) for all other cohorts;
- •Medically healthy without clinically significant abnormalities at the screening visit or Day -1, including:
- •Physical examination, vital signs. Vital signs include temperature, heart rate, respiratory rate, and blood pressure;
- •Triplicate ECGs without QTcF interval duration greater than 450 msec obtained as an average from the triplicate screening and pre-dose Day 1 ECGs after at least 5 min in a fully supine quiet rest;
- •Hemoglobin/hematocrit, white blood cell (WBC) count, and platelet count greater than the lower limit of normal range of the reference laboratory;
- •Creatinine, BUN, ALT and AST equal to or less than the upper limit of normal for the reference laboratory; results of all other clinical chemistry and urine analytes without any clinically significant abnormality.
- •Discussion between the PI and the SMR is encouraged regarding any abnormal laboratory value that is outside of the normal range during the pre-dose period.
- •Be non-smokers (including tobacco, e-cigarettes or marijuana) for at least 1 month prior to participation in the study;
- •Willing and able to provide written informed consent;
Exclusion Criteria
- •History or presence of significant cardiovascular, pulmonary, hepatic, renal, hematological, gastrointestinal, endocrine, immunologic, dermatologic or neurological disease, including any acute illness or surgery within the past three months determined by the PI to be clinically relevant;
- •History of known or suspected Clostridium difficile infection;
- •Positive urine drug/alcohol testing at screening or check-in (Day -1);
- •Positive testing for HIV, HBsAg or HCV;
- •History of substance abuse or alcohol abuse (defined as greater than 2 standard drinks on average each and every day, where one standard drink is defined as containing 10 g of alcohol and is equivalent to 1 can or stubby of mid-strength beer, 30 ml nip spirits, or 100 ml wine) within the previous 5 years;
- •Use of any prescription medication or any over-the-counter medication, including herbal products and vitamins within 7 days prior to randomization;
- •Documented hypersensitivity reaction or anaphylaxis to any medication;
- •Donation of blood or plasma within 30 days prior to randomization, or loss of whole blood of more than 500 mL within 30 days prior to randomization, or receipt of a blood transfusion within 1 year of study enrollment;
- •Participation in another investigational clinical trial within 30 days prior to Day 1;
- •Any other condition or prior therapy, which, in the opinion of the PI, would make the volunteer unsuitable for this study, including unable to cooperate fully with the requirements of the study protocol or likely to be non-compliant with any study requirements.
Arms & Interventions
SPR741
SPR741 is a novel chemical entity known as a potentiator that specifically interacts with the outer membrane of Gram-negative bacteria to increase the membrane's permeability. This increase in permeability allows Gram-positive antibiotics to enter and kill the cell. SAD cohorts: Subjects will receive single doses of SPR741 over 60 minute IV infusion. Planned doses to be studied are 5, 15, 50, 100, 200, 400, 600 and 800 mg. MAD cohorts: Subjects will receive SPR741 over 60 minute IV infusion three times a day (TID). Four dose groups will be studied. Doses will be determined by assessing SAD cohort data.
Intervention: SPR741
Placebo
The placebo used during this study is normal saline (0.9% sodium chloride for injection). SAD: Subjects will receive single infusions of placebo (0.9% sodium chloride for injection) over 60 minutes. MAD: Subjects will receive TID infusions of placebo over 60 minutes for 14 days
Intervention: Placebo
Outcomes
Primary Outcomes
Safety measures: respiratory rate
Time Frame: SAD: Day -1 to day 7; MAD: Day -1 to day 21
Change from baseline to end of study visit
Safety measures: EKG
Time Frame: SAD: 5 to 7 days MAD: 21 to 23 days
Change from baseline to end of study visit
Safety measures: adverse events
Time Frame: SAD: 5 to 7 days MAD: 21 to 23 days
The frequency and type of adverse events
Safety measures: clinical laboratory testing
Time Frame: SAD: Day -1 to day 7; MAD: Day -1 to day 21
Clinical laboratory testing - change from baseline to end of study visit
Safety measures: pulse rate
Time Frame: SAD: Day -1 to day 7; MAD: Day -1 to day 21
Change from baseline to end of study visit
Safety measures: blood pressure
Time Frame: SAD: Day -1 to day 7; MAD: Day -1 to day 21
Change from baseline to end of study visit
Secondary Outcomes
- Geometric means will be calculated for Area Under the Curve (AUC)(Day 1 and Day 14)
- Geometric means will be calculated for Concentration maximum (Cmax)(Day 1 and Day 14)
- Individual SPR741 plasma concentration-time curves will be tabulated for each dose cohort.(Day 1 and Day 14)
- Geometric means will be calculated for Area Under the Curve (AUC) Urine(Day 1 and Day 14)
- Geometric means will be calculated for Concentration maximum (Cmax) Urine(Day 1 and Day 14)
- Mean SPR741 plasma concentration-time curves will be tabulated for each dose cohort.(Day 1 and Day 14)