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Study of the Safety and Pharmacokinetics of KSP-1007 Alone and Coadministered With Meropenem in Healthy Subjects

Phase 1
Completed
Conditions
Bacterial Infections
Interventions
Registration Number
NCT05226923
Lead Sponsor
Sumitovant Biopharma, Inc.
Brief Summary

This study is a first-in-human, Phase 1, randomized, double- blind, four-part, dose-escalation study to assess the safety, tolerability, and pharmacokinetics of single (Part 1) and repeat (Part 2) escalating intravenous doses of KSP-1007. Repeated escalating doses of KSP-1007 will be co-administered with meropenem (Part 3) and single, ascending doses of KSP-1007 will be administered alone in healthy Japanese subjects (Part 4)

Detailed Description

Carbapenem-resistant Gram-negative bacteria are responsible for serious, life-threatening infections and are regarded as an urgent threat by the Centers for Disease Control and Prevention and the World Health Organizations. One principal mechanism of carbapenem resistance is bacterial production of carbapenemases, which reduce the effectiveness of meropenem and other carbapenem class antibiotics. Sumitovant Biopharma is developing a fixed combination of meropenem and KSP-1007 for the treatment of serious bacterial infections.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
123
Inclusion Criteria
  • Healthy male or female subjects 18 to 55 years of age, inclusive
  • Females that engage in heterosexual activity must agree to use a highly selective birth control (BC) method (< 1% failure rate per year) throughout the study, or have a documented reproductive status of non-childbearing based on medical history, or is postmenopausal
  • Males that engage in heterosexual activity that has the risk of pregnancy must agree to use effective BC and agree to not donate sperm during the study and for at least 90 days after the last dose of the study medication
  • Body mass index (BMI) 2: 18 kg/m2 and :s 32 kg/m2
Exclusion Criteria
  • History of Gilbert's Syndrome
  • History of severe allergic reactions to β-lactams or β-lactamase inhibitors or a history allergic reactions to multiple medications.
  • Pregnant female, determined by positive serum or urine human chorionic gonadotropin pregnancy test at Screening, or prior to dosing
  • Lactating female
  • Donation of plasma within 7 days prior to dosing. Donation or loss of blood (excluding volume drawn at Screening) of > 499 mL within 56 days prior to Day 1
  • Participation in a study with an investigational drug or device study with last dose of investigational drug within 30 days (90 days if the study involved a biologic, cellular, or vaccine product) or 5 half-lives, whichever is longer, before study treatment administration
  • Subjects with abnormal hepatic and/or renal function, that could interfere with the metabolism, and/or excretion of the study treatments
  • Abnormal blood pressure, either low (defined as < 90 mmHg systolic and/ or < 45 mmHg diastolic) or high (defined as > 140 mmHg systolic and/ or > 90 mmHg diastolic) at Screening
  • Positive serology for hepatitis B virus (HBV), hepatitis C virus (HCV), or HIV at Screening. Subjects who test positive for hepatitis B core antibody (HBcAb) or hepatitis B surface antigen (HBsAg) also will be ineligible. Evidence of prior HBV vaccination (positive hepatitis B surface antibody [HBsAb)) is not exclusionary.
  • Subjects unable to abstain from alcohol for 48 hours prior to admission through to completion of the Follow-up visit

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
KSP-1007 multiple ascending doseKSP-1007Multiple, ascending, intravenous doses of KSP-1007
Placebo + Meropenem multiple doseMeropenemMultiple doses of placebo (0.9% normal saline) plus multiple doses of meropenem (fixed dose)
KSP-1007 multiple ascending dose + Meropenem multiple doseMeropenemMultiple, ascending intravenous doses of KSP-1007 and multiple doses of meropenem (fixed dose)
KSP-1007 single ascending doseKSP-1007Single, ascending intravenous dose of KSP-1007
KSP-1007 multiple ascending dose + Meropenem multiple doseKSP-1007Multiple, ascending intravenous doses of KSP-1007 and multiple doses of meropenem (fixed dose)
Primary Outcome Measures
NameTimeMethod
Incidence of adverse events assessed by subject .up to Day 14

Incidence of adverse events

Secondary Outcome Measures
NameTimeMethod
Cumulative amount of KSP-1007 excreted in urine over timeUp to 5 days after start of dosing

Total amount of unchanged drug excreted in urine over a dosing interval

Plasma concentration versus time curve of meropenemUp to 5 days after start of dosing

The plasma concentration of meropenem will be measured over time and the area under the curve, or AUC, of meropenem will be determined

ECG QTcF interval24 hours after start of dosing

Change from baseline QTcF interval

Peak plasma concentration of KSP-1007Up to 5 days after dosing

The plasma concentration of KSP-1007 will be measured over time, and the peak plasma concentration, or Cmax, of KSP-1007 will be determined

Plasma concentration of KSP-1007 versus time curveUp to 5 days after dosing

The plasma concentration of KSP-1007 will be measured over time and the area under the curve, or AUC, of KSP-1007 will be determined

Peak plasma concentration of meropenemUp to 5 days after start of dosing

The plasma concentration of meropenem will be measured over time, and the peak plasma concentration, or Cmax, of meropenem will be determined

Renal clearance of meropenem in urine over timeUp to 5 days after start of dosing

Renal clearance in urine. Urine was collected up to 5 days after dosing.

Renal clearance of KSP-1007 in urine over timeUp to 5 days after start of dosing

Renal clearance in urine. Urine was collected up to 5 days after dosing.

Cumulative amount of meropenem excreted in urine over timeUp to 5 days after start of dosing

Total amount of unchanged drug excreted in urine over a dosing interval.

Trial Locations

Locations (1)

PRA Health Sciences

🇺🇸

Lenexa, Kansas, United States

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