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Phase 3 N=100 Treatment

Study of Ceftolozane/Tazobactam (MK-7625A) in Combination With Metronidazole in Japanese Participants With Complicated Intra-abdominal Infection (MK-7625A-013)

Intra-abdominal Infection · Complicated Intra-abdominal Infection

Enrolled (actual)
100
Serious AEs
10.0%
Results posted
Jul 2018
Primary outcome: Primary: Percentage of Participants With Clinical Response (Clinical Cure, Clinical Failure, or Indeterminate) at Test of Cure (TOC) — 92.0; 8.0; 0.0 Percentage of Participants

Study Design & Population

Study type
Interventional
Phase
Phase 3
Interventions
MK-7625A 1.5 g (ceftolozane 1 g/tazobactam 0.5 g) (Drug); metronidazole 500 mg (Drug)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Merck Sharp & Dohme LLC
Primary completion
Jul 2017

Outcome Measures

OutcomeResultp-value
PRIMARY
Percentage of Participants With Clinical Response (Clinical Cure, Clinical Failure, or Indeterminate) at Test of Cure (TOC)
92.0; 8.0; 0.0
PRIMARY
Percentage of Participants With Adverse Events (AEs)
62.0
PRIMARY
Percentage of Participants Discontinuing Study Drug Due to AEs
0.0
SECONDARY
Percentage of Participants With Clinical Response (Clinical Cure, Clinical Failure, or Indeterminate) at End Of Therapy (EOT)
94.6; 5.4; 0.0
SECONDARY
Percentage of Participants With Clinical Response (Clinical Cure, Clinical Failure, or Indeterminate) at Late Follow-Up (LFU)
90.6; 9.4; 0.0
SECONDARY
Percentage of Participants With Microbiological Response (Eradication, Persistence, or Indeterminate) at EOT
93.8; 6.2; 0.0
SECONDARY
Percentage of Participants With Microbiological Response (Eradication, Persistence, or Indeterminate) at TOC
90.2; 9.8; 0.0
SECONDARY
Percentage of Participants With Microbiological Response (Eradication, Persistence, or Indeterminate) by Pathogen at EOT
94.5; 95.0; 97.7; 90.5
SECONDARY
Percentage of Participants With Microbiological Response (Eradication, Persistence, or Indeterminate) by Pathogen at TOC
90.6; 89.5; 95.2; 85.0

Summary

This is a Phase 3, multi-site, non-randomized, open-label study evaluating the safety and efficacy of MK-7625A 1.5 g (ceftolozane 1 g/tazobactam 0.5 g) plus metronidazole 500 mg for the treatment of Complicated Intra-abdominal Infections (cIAI) in Japanese participants. Efficacy will be primarily assessed by clinical response defined as complete resolution or significant improvement in signs and symptoms of the index infection.

Eligibility Criteria

Inclusion Criteria

  • Has one of the following diagnoses with evidence of intra-peritoneal infection: cholecystitis (including gangrenous cholecystitis) with rupture, perforation, or progression of the infection beyond the gallbladder wall; diverticular disease with perforation or abscess; appendiceal perforation or periappendiceal abscess; acute gastric or duodenal perforation, traumatic perforation of the intestine; peritonitis due to perforated viscus or following a prior operative procedure; or Intra-abdominal abscess (including liver and spleen).
  • Has evidence of systemic infection
  • Had or has plans to have surgical intervention within 24 hours of the first dose of study drug
  • Has radiographic evidence of perforation or abscess if enrolled preoperatively
  • Is able to have intra-abdominal specimen taken at baseline for the microbiological assessment
  • Female participants of child bearing potential must not be pregnant (negative human chorionic gonadotropin test) or breastfeeding and must agree to use adequate contraception for the duration of the study and up to 35 days after the last dose of study drug
  • Male participants must agree to use adequate contraception for the duration of the study and up to 75 days after the last dose of study drug

Exclusion Criteria

  • Has simple appendicitis; abdominal wall abscess; small bowel obstruction or ischemic bowel disease without perforation; spontaneous bacterial peritonitis associated with cirrhosis and chronic ascites; acute suppurative cholangitis; infected necrotizing pancreatitis; pancreatic abscess; infectious mononucleosis; cystic fibrosis; or pelvic infections
  • Has complicated intra-abdominal infection managed by staged abdominal repair (STAR) or open abdomen drainage
  • Has had acute gastric or duodenal perforation (≤ 24 hours after) or traumatic perforation of the intestine (≤ 12 hours after) operated on after the perforation occurred
  • Is expected to be cured by only surgical intervention without use of systemic antibacterial therapy
  • Has used systemic antibacterial therapy for intra-abdominal infection for more than 24 hours prior to the first dose of study drug, unless there is a documented treatment failure with such therapy
  • Has severe impairment of renal function (estimated CrCl 14 days prior to study start
  • Has a history of any moderate or severe hypersensitivity or allergic reaction to any beta-lactam (β-lactam) antibacterial, including cephalosporins, carbapenems, penicillins, or β-lactamase inhibitors, or metronidazole, or nitroimidazole derivatives
  • Is receiving or has received disulfiram within 14 days before receiving study drug or who is currently receiving probenecid
  • Has participated in any clinical study of an investigational product within 30 days prior to the first dose of study drug
  • Has previously participated in any study of ceftolozane or MK-7625A.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02739997). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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