MedPath

Dose-finding, Pharmacokinetics, and Safety of VABOMERE in Pediatric Subjects With Bacterial Infections

Phase 1
Recruiting
Conditions
Bacterial Infections
Interventions
Registration Number
NCT02687906
Lead Sponsor
Rempex (a wholly owned subsidiary of Melinta Therapeutics, LLC)
Brief Summary

A single dose infusion of Vabomere (meropenem-vaborbactam) is being tested for dose-finding, pharmacokinetics, safety, and tolerability in pediatric subjects from birth to less than 18 years of age with serious bacterial infections

Detailed Description

In the current era of increased resistance to extended spectrum cephalosporins, carbapenem antimicrobial agents are frequently the antibiotics of "last defense" for the most resistant pathogens in serious infections, including those found in complicated Urinary Tract Infections (cUTI). The recent dissemination of serine carbapenemases (e.g. KPC) in Enterobacteriaceae in many hospitals worldwide now poses a considerable threat to the carbapenems and other members of the beta-lactam class of antimicrobial agents.

Rempex developed meropenem-vaborbactam administered as a fixed combination by IV infusion, to treat serious Gram-negative infections, such as cUTIs, including those infections caused by bacteria resistant to currently available carbapenems.

This study is an open label, dose-finding, pharmacokinetics, safety, and tolerability study of a single dose infusion of meropenem-vaborbactam in pediatric subjects from birth to less than 18 years of age with suspected or confirmed bacterial infection receiving antibiotic therapy or subjects receiving peri-operative prophylactic use of antibiotics.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
67
Inclusion Criteria
  1. A signed and dated written informed consent from the parent or legal representative and a subject assent (according to local IRB requirements);
  2. Male or female from birth to < 18 years of age;
  3. Are hospitalized, in stable condition, and receiving systemic antibiotics for a known or suspected bacterial infection; or subjects receiving peri-operative prophylactic use of antibiotics;
  4. The subject will be observed in the hospital for at least 6 hours after the study drug is administered;
  5. If female and has reached menarche, or has reached Tanner Stage 3 breast development (even if not having reached menarche), the subject is practicing appropriate birth control or is sexually abstinent;
  6. Sufficient intravascular access (peripheral or central) to receive study drug.

Subjects will be excluded from the study if any of the following exclusion criteria apply prior to randomization:

  1. Signs of severe sepsis including:

    1. Shock or profound hypotension that is not responsive to fluid challenge;
    2. Hypothermia (core temperature < 35.6 ºC or 96.1 ºF);
    3. Disseminated intravascular coagulation as evidenced by prothrombin time or partial thromboplastin time ≥ 2X the ULN or platelets < 50% of the lower limit of normal;
  2. Any surgical or medical condition which, in the opinion of the investigator, would put the subject at increased risk or is likely to interfere with study procedures or PK of the study drug;

  3. Females who are of childbearing potential and unwilling to practice abstinence or use at least two methods of contraception (oral contraceptives, barrier methods, approved contraceptive implant) during the entire study period;

  4. Female adolescent subjects who are pregnant or breastfeeding or have a positive serum β-hCG pregnancy test at screening and at pre-dose Day 1;

  5. Males who are unwilling to practice abstinence or use an acceptable method of broth control during the entire study period (i.e. condom with spermicide);

  6. Renal function at screening as estimated by creatinine clearance < 50 mL/min /1.73 m^2 as calculated using the updated Schwartz bedside formula: eGFR = k x (height in cm) ÷ serum creatinine

    • k = 0.33 in pre-term infants.
    • k = 0.45 in term infants to 1 year of age.
    • k = 0.55 in children and adolescent girls.
    • k = 0.70 in adolescent boys.
  7. Treatment within 30 days prior to enrollment with valproic acid;

  8. Treatment within 30 days prior to enrollment with probenecid;

  9. Evidence of significant hepatic disease or dysfunction, including known acute viral hepatitis or hepatic encephalopathy;

  10. Neutropenia with absolute neutrophil count (ANC) < 500 cells/mm3;

  11. Aspartate aminotransferase or alanine aminotransferase ≥ 3X ULN or total bilirubin ≥ 1.5X ULN;

  12. Receipt of any investigational medication or investigational device within 30 days prior to enrollment;

  13. Prior exposure to vaborbactam or Vabomere;

  14. Use of meropenem within 48 hours of administration of study drug or 12 hours after study drug administration;

  15. Known significant hypersensitivity to any beta-lactam antibiotic;

  16. Unable or unwilling in the judgment of the Investigator, to comply with the protocol;

  17. Subject is a child of an employee of the Investigator or study center with direct involvement in the proposed study or other studies under the direction of that Investigator or study center, as well as a family member of the employee or the Investigator;

  18. Body Mass Index (BMI) outside the range (below the 5th percentile or above the 95th percentile) for height, age and weight except for children < 2 years of age.)

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Single dose IV meropenem-vaborbactamVabomereVabomere (meropenem-vaborbactam) for IV injection will be administered as a single dose diluted in normal saline infused IV over 3 hours * Cohort 1 (n=8): 12 to \< 18 years of age (40 mg/kg) * Cohort 2 (n=8): 6 to \< 12 years of age (40 mg/kg) * Cohort 2b (n=4): 6 to \< 12 years of age (60 mg/kg) * Cohort 3 (n=8): 2 to \< 6 years of age (60 mg/kg) * Cohort 4 (n=8): 3 months to \< 2 years of age (60 mg/kg) * Cohort 5 (n=24): Birth to \< 3 months of age (dose TBD) * Group A: Gestational Age (GA) \< 32 weeks, Postnatal Age (PNA) \< 2 weeks (n=6) * Group B: GA \< 32 weeks, PNA \> 2 weeks (n=6) * Group C: GA \> 32 weeks, PNA \< 2 weeks (n=6) * Group D: GA \> 32 weeks, PNA \> 2 weeks (n=6) * Cohort 6 (n=7): 2 to \< 12 years of age and ≤ 35 kg of weight (80 mg/kg)
Primary Outcome Measures
NameTimeMethod
Pharmacokinetics: drug clearance (CL)From pre-dose until 6 hours after the start of the infusion

total body clearance

Pharmacokinetics: CminFrom pre-dose until 6 hours after the start of the infusion

minimum plasma concentration

Pharmacokinetics: t1/2From pre-dose until 6 hours after the start of the infusion

elimination half- life

Pharmacokinetics: VssFrom pre-dose until 6 hours after the start of the infusion

Volume of distribution

Pharmacokinetics: AUC0-∞From pre-dose until 6 hours after the start of the infusion

AUC from time zero to infinity

Safety and tolerability: vital signsFrom assent / consent until day 7 safety follow up call

A composite of multiple vital sign measurements, assessing the clinical significance of any changes from baseline

Safety and tolerability: ECGsFrom assent / consent until day 7 safety follow up call

A composite of multiple ECG measurements, assessing the clinical significance of any changes from baseline

Safety and tolerability: AEs/SAEsFrom assent / consent until day 7 safety follow up call

a composite measure of the number and types of AEs/SAEs encountered and relationship to time of dosing

Safety and tolerability: clinical safety laboratory resultsFrom assent / consent until day 7 safety follow up call

A composite measure of multiple laboratory results assessing the clinical significance of any changes from baseline

Pharmacokinetics: CmaxFrom pre-dose until 6 hours after the start of the infusion

maximum measured plasma concentration

Pharmacokinetics: time to maximum plasma concentration (Tmax)From pre-dose until 6 hours after the start of the infusion

time to Cmax

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (10)

Arkansas Children's Hospital

🇺🇸

Little Rock, Arkansas, United States

Ronald Reagan UCLA Medical Center

🇺🇸

Los Angeles, California, United States

Children's Hospital of Orange County

🇺🇸

Orange, California, United States

Rady Children's Hospital San Diego

🇺🇸

San Diego, California, United States

Los Angeles Biomedical Research Institute

🇺🇸

Torrance, California, United States

Ann & Robert H. Lurie Children's Hospital of Chicago

🇺🇸

Chicago, Illinois, United States

University of Nebraska Medical Center

🇺🇸

Omaha, Nebraska, United States

Rutger's University

🇺🇸

New Brunswick, New Jersey, United States

Rainbow Babies and Childrens Hospital

🇺🇸

Cleveland, Ohio, United States

Toledo Children's Hospital

🇺🇸

Toledo, Ohio, United States

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