A First in Human Study of the Safety and Tolerability of Single and Multiple Doses of BWC0977 in Healthy Volunteers

Overview

The purpose of this study is to assess the safety, tolerability and pharmacokinetics of single and multiple intravenous doses of BWC0977 when administered to healthy adult volunteers.

Full Title of Study: “A Randomized, Double-blind, Placebo-controlled, Phase 1 Study of the Safety, Tolerability and Pharmacokinetics of Single and Multiple Ascending Doses of BWC0977 in Healthy Adult Volunteers”

Study Type

• Study Type: Interventional
• Study Design
  • Allocation: Randomized
  • Intervention Model: Parallel Assignment
  • Primary Purpose: Treatment
  • Masking: Double (Participant, Investigator)
• Study Primary Completion Date: December 29, 2022

Detailed Description

This Phase 1 study is designed to assess the safety, tolerabilty and pharmcokinetics of single and multiple intravenous doses of BWC0977 when administered to healthy adult volunteers. This is a randomized double-blind, placebo-controlled, ascending dose, multi-cohort trial. A total of 64 healthy volunteers are expected to be enrolled into 8 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 in Cohorts 1 – 5 will receive one dose of BWC0977 or placebo. In MAD, participants in Cohorts 6 – 8 will receive multiple doses of BWC0977 or placebo for 10 consecutive days at a dose deemed safe and tolerable as determined in the preceding SAD Cohorts. In both parts sequential cohorts will be exposed to increasing doses of BWC0977.

Interventions

• Drug: BWC0977
  • SAD Cohorts: Double-blind dosing will occur. Six participants will receive single doses of BWC0977. The dose escalation steps may be altered following review of the safety data upon completion of each cohort. MAD Cohorts: Double blind dosing will occur. Six participants in each cohort will receive multiple doses of BWC0977. The dose escalation steps may be altered following review of the safety data upon completion of each cohort. Dosing will commence on the morning of Day 1. Dosing frequency to be confirmed based on safety, tolerability and PK data from SAD cohorts. Daily dosing will continue for a total of 10 consecutive days.
• Drug: Placebo
  • SAD Cohorts: Two participants in each cohort will receive matching placebo. MAD Cohorts: Two participants in each cohort will receive matching placebo.

Arms, Groups and Cohorts

• Experimental: BWC0977
  • SAD Cohorts: Subjects will receive single doses of BWC0977 via IV infusion over 2 hours. Planned doses to be studied are 120, 240, 480, 720, and 1050mg. MAD Cohorts: Subjects will receive multiple doses of 240mg TID 7 days, 350mg TID 7 days BWC0977 via IV infusion over 2 hours in the first 2 cohorts. The dose for the B3 cohort will be determined based on safety and tolerability data from the previous two cohorts Up to three dose groups will be studied.
• Placebo Comparator: Placebo
  • Compounded solution minus BWC0977 The placebo used during this study is 5% Dextrose for injection. SAD Cohorts: Subjects will receive single infusions of placebo (Compounded solution minus BWC0977) over two hour. MAD Cohorts: Subjects will receive multiple infusions of placebo over 2 hour for 10 consecutive days. Frequency of infusions will be determined based on safety, tolerability and PK data obtained for BWC0977 in SAD Cohorts.

Clinical Trial Outcome Measures

Primary Measures

• Incidence of treatment-emergent adverse events (TEAEs and serious adverse events (SAEs) overall and by intensity (Safety and tolerability).
  • Time Frame: SAD: Up to 7 days; MAD: Up to 15 days.
  • This outcome combines the measure of the number of participants experiencing adverse events (AEs), the nature and severity of those AEs and their relationship to the study treatment.

Secondary Measures

• AUC[0-t] of BWC0977 following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • Area under the plasma concentration curve from time zero to last time of quantifiable concentration (AUC[0-t]) of BWC0977 following single dose administration
• AUC[0-inf]) of BWC0977 following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • AUC from time zero to infinity (AUC[0-inf]) of BWC0977 following single dose administration
• AUC[0-8], AUC[0-12], AUC[0-24]) of BWC0977 following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • AUC from time zero to 8, 12, and 24 hours (AUC[0-8], AUC[0-12], AUC[0-24]) of BWC0977 following single dose administration
• Cmax of BWC0977 following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • Maximum observed plasma concentration (Cmax) of BWC0977 following single dose administration
• Cmax of BWC0977 following repeat dose administration
  • Time Frame: Day 1 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, and 8 hours post infusion start Days 5, 6, 7, 8, and 9: pre-dose Day 10 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12 and 24 hours post infusion start
  • Maximum observed plasma concentration (Cmax) of BWC0977 following repeat dose administration
• Terminal half-life (T1/2)
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • Terminal half-life (T1/2) of BWC0977 following single dose administration
• Systemic clearance (CL) following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • Systemic clearance (CL) of BWC0977 following single dose administration
• Systemic clearance (CL) following repeat dose administration
  • Time Frame: Day 1 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, and 8 hours post infusion start Days 5, 6, 7, 8, and 9: pre-dose Day 10 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12 and 24 hours post infusion start
  • Systemic clearance (CL) of BWC0977 following repeat dose administration
• Volume of distribution at steady state (Vdss) following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • Volume of distribution at steady state (Vdss) of BWC0977 following single dose
• Mean residence time (MRT) following single dose administration
  • Time Frame: Day 1 pre-dose, 5, 10,15, 20, 30, 45, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12, 24 and 48 hours post infusion start
  • Mean residence time (MRT) of BWC0977 following single dose administration
• Pre-dose (trough) concentration (Cτ) at the end of the dosing interval
  • Time Frame: Day 1 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, and 8 hours post infusion start Days 5, 6, 7, 8, and 9: pre-dose Day 10 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12 and 24 hours post infusion start
  • Pre-dose (trough) concentration (Cτ) at the end of the dosing interval of BWC0977 following repeat dose administration
• Observed accumulation ratio following repeat dose administration
  • Time Frame: Day 1 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, and 8 hours post infusion start Days 5, 6, 7, 8, and 9: pre-dose Day 10 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12 and 24 hours post infusion start
  • Observed accumulation ratio (Ro) of BWC0977 following repeat dose administration
• Volume of distribution at steady state following repeat dose administration
  • Time Frame: Day 1 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, and 8 hours post infusion start Days 5, 6, 7, 8, and 9: pre-dose Day 10 pre-dose, 30, 60, 75, and 90 minutes and 2, 2.5, 3, 4, 6, 8, 10, 12 and 24 hours post infusion start
  • Volume of distribution at steady state (Vdss) of BWC0977 following repeat dose

Participating in This Clinical Trial

Inclusion Criteria

Each subject must meet all of the following criteria to be eligible for study participation: 1. Healthy male or female 18 to 55 years of age, inclusive, at time of consent. 2. Body mass index (BMI) ≥ 19.0 and ≤ 30.0 (kg/m2) and weight between 55.0 and 100.0 kg (inclusive). 3. Medically healthy without clinically significant abnormalities at the screening visit or Day -1, including: 1. No findings in Physical examination or vital signs (including temperature, heart rate, respiratory rate, and blood pressure) that the Principal Investigator (PI) determines would interfere with interpretation of study results. 2. Electrocardiograms (ECGs) without clinically significant abnormalities, including a QT duration corrected for heart rate by Fridericia's formula (QTcF) interval duration ≤450 msec (for males), and ≤470 msec (for females) obtained as an average from the triplicate screening ECGs after at least 5 minutes in a supine quiet-rest position. 3. Clinically significant abnormalities in the screening clinical laboratory tests, as determined by the Investigator. Repeat testing could be performed at the Investigator's discretion. 4. Willing Exclusion Criteria:

Volunteers who meet any of the following criteria will be excluded from the study: 1. Women who are pregnant and/or nursing. 2. History or presence of significant cardiovascular (including QT prolongation, clinically significant hypokalemia, or other proarrhythmic conditions), pulmonary, hepatic, renal, hematological, gastrointestinal, endocrine (including glucose intolerance, diabetes mellitus), immunologic (including asthma or seasonal allergies [that require intermittent use of steroids or other medication]), musculoskeletal (including tendinopathy), dermatologic, or neurological disease (including seizure disorders, psychiatric disorders), including any acute illness or surgery within the past 3 months determined by the PI to be clinically relevant. 3. A serum creatinine value on Day -1 (check-in) that increased by more than 0.2 mg/dL (or 15.25 µmol/L) from the Screening value. 4. History of photosensitivity to quinolones. 5. History of known or suspected Clostridium difficile infection. 6. Any condition that necessitated hospitalisation within the 3 months prior to Day -1 or is likely to require so during the study. 7. Positive test for hepatitis B virus surface antigen (HBsAg), hepatitis C virus antibody (anti-HCV antibodies), or human immunodeficiency virus antibody (antibodies to HIV-1, HIV-2) or tuberculosis (TB) at screening. 8. Exposure to any prescription medications (small molecules, biologics including vaccines) or, systemically administered OTC drugs, dietary supplements or herbal remedies, within 30 days or 5 half-lives (if known), whichever is longer, prior to Day -1. Discussion between the PI and the Sponsor Medical Monitor is encouraged regarding prior use of any medications during the pre-dose period. Note: An exception is made for hormonal contraceptives and a limited amount of paracetamol (a maximum of 4 doses per day of 500-mg paracetamol, and no more than 3 g per week) for the treatment of headache or any other pain. 9. Documented hypersensitivity reaction or anaphylaxis to any medication. 10. Smoker (including tobacco, e-cigarettes or marijuana) or nicotine user within 1 month prior to participation in the study 11. Positive urine drug/alcohol testing at screening or check-in (Day -1), or 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 (may be repeated once per timepoint, at the discretion of the PI, in the instance of a positive result). 12. 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. 13. Previous participation in this study or previous participation in another study within 5 half-lives (if known) of the agent, whichever is longer, of Day 1. Note: prior participation at any time in non-invasive methodology trials in which no drugs were given is acceptable. 14. Consumption of red wine, seville oranges, grapefruit or grapefruit juice, pummelos, other citrus fruits, grapefruit hybrids or fruit juices containing such products from 7 days prior to the first dose of study medication. 15. Employee or family member of an employee of the Sponsor, CRU, or clinical research organization at which the study will be conducted. 16. Unable to cooperate fully with the requirements of the study protocol, including the schedule of assessments, or likely to be non-compliant with any study requirements. 17. Any disease or condition (medical or surgical) that, by the determination of the PI, precludes the subject's participation in the study or would place the subject at risk as a result of participation in the study. Note: Volunteers should refrain from consumption of any foods containing poppy seeds within 48 hours (2 days) prior to screening and prior to Day -1 to avoid false positive drug screen results

Gender Eligibility: All

Efforts will be made to randomize approximately equal numbers of males and females to either active or placebo in Part 1 and Part 2 (including both genders).

Minimum Age: 18 Years

Maximum Age: 55 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

• Lead Sponsor
  • Bugworks Research Inc.
• Collaborator
  • Avance Clinical Pty Ltd.
• Provider of Information About this Clinical Study
  • Sponsor
• Overall Official(s)
  • Angela Molga, MD, Principal Investigator, CMAX Clinical Research