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Completed

NCT Number: NCT01721408

A Study To Determine The Efficacy And Safety Of Tigecycline Compared With Imipenem/Cliastatin to Treat Complicated Intra-Abdominal Infection

This is a comparative study of the efficacy and safety of tigecycline to imipenem/cilastatin in hospitalized patients with a complicated intra-abdominal infection.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Anqing City Hospital, Anqing, Anhui, China

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Hospitalized male or female subjects, at least 18 year of age.
  • Complicated intra-abdominal infection is present at most under two weeks duration.
  • Minimal clinical criteria at the time of intra-abdominal infection diagnosis or highly suspected intra-abdominal infection.

Exclusion criteria

  • Anticipated length of antibiotic therapy less than 5 days or the likelihood that the subject will not complete the course of treatment.
  • Intra-abdominal infection known to be caused by 1 or more bacterial pathogens not susceptible to both of the study drugs.
  • Had accepted non-study antibiotics more than 24 hr within 72 hrs before enrollment except for subjects declared prior failures.

Treatment and study plan

tigecycline

Drug

every 12 hours (an initial intravenous dose of 100 mg followed by 50 mg twice a day approximately every 12 hours) and placebo intravenous doses every 12 hours beginning 6 hours after the initial intravenous dose of tigecycline for at least for 5 days and up to 14 days.

imipenem/cilastatin

Drug

every 6 hours intravenously, and the imipenem/cilastatin will be dosed by 500mg/500mg for the subjects with creatinine clearance equal or above 71ml/min/1.73m2 or dose will be adjusted by Schedule of Study Drug Administration for Subjects with Renal Impairment.

Primary outcomes

  1. Clinical Response at the Test-of-Cure (TOC) Assessment Within the Clinically Evaluable (CE) Population

    Time frame: Day 3, Day 14 or last day of therapy (treatment duration was at least 5 days and up to 14 days), and TOC (14-21 days after the last dose of therapy)

    The clinical response was to be determined by the investigator and was classified as 1 of the following: cure (relevant clinical signs and symptoms of infection at baseline disappeared or recovered to normal and relevant non microbiological results of laboratory tests returned to normal level or the resolution of signs and symptoms so that at no further therapy was required), failure (participant required additional surgical or radiologic intervention and/or received additional anti-infection therapy to cure the infection since administration of study drug until TOC; or death after study Day 2 due to the infection or a treatment related AE or discontinuation due to a treatment related AE or received greater than 120% of the prescribed number of investigational product doses), or indeterminate (lost to follow-up; or died within 2 days after the first dose of study drug for any reason; or died after study Day 2 but prior to the TOC assessment because of non infection related reasons).

  2. Clinical Response at the TOC Assessment Within the Modified Intent-to-Treat (mITT) Population

    Time frame: Day 3, Day 14 or last day of therapy (treatment duration was at least 5 days and up to 14 days), and TOC (14-21 days after the last dose of therapy)

    The clinical response was to be determined by the investigator and was classified as 1 of the following: cure (relevant clinical signs and symptoms of infection at baseline disappeared or recovered to normal and relevant non microbiological results of laboratory tests returned to normal level or the resolution of signs and symptoms so that at no further therapy was required), failure (participant required additional surgical or radiologic intervention and/or received additional anti-infection therapy to cure the infection since administration of study drug until TOC; or death after study Day 2 due to the infection or a treatment related AE or discontinuation due to a treatment related AE or received greater than 120% of the prescribed number of investigational product doses), or indeterminate (lost to follow-up; or died within 2 days after the first dose of study drug for any reason; or died after study Day 2 but prior to the TOC assessment because of non infection related reasons).

Secondary outcomes

  1. Clinical Response at the TOC Assessment Within the Microbiologically Evaluable (ME) Population

    Time frame: Day 3, Day 14 or last day of therapy (treatment duration was at least 5 days and up to 14 days), and TOC (14-21 days after the last dose of therapy)

    The clinical response was to be determined by the investigator and was classified as 1 of the following: cure (relevant clinical signs and symptoms of infection at baseline disappeared or recovered to normal and relevant non microbiological results of laboratory tests returned to normal level or the resolution of signs and symptoms so that at no further therapy was required), failure (participant required additional surgical or radiologic intervention and/or received additional anti-infection therapy to cure the infection since administration of study drug until TOC; or death after study Day 2 due to the infection or a treatment related AE or discontinuation due to a treatment related AE or received greater than 120% of the prescribed number of investigational product doses), or indeterminate (lost to follow-up; or died within 2 days after the first dose of study drug for any reason; or died after study Day 2 but prior to the TOC assessment because of non infection related reasons).

  2. Microbiological Response at the Subject Level in the ME Population at the TOC Assessment

    Time frame: Day 3, Day 14 or last day of therapy (treatment duration was at least 5 days and up to 14 days), and TOC (14-21 days after the last dose of therapy)

    The microbiological response at the subject level was described according to the following definitions of efficacy. Eradication (documented or presumed): none of the baseline pathogens were present in repeat intra-abdominal cultures from the original site of infection taken during the study or a clinical response of cure precluded the necessity of a repeat intra-abdominal culture. Persistence (documented or presumed): documented: any baseline intra-abdominal pathogen was present in the cultures obtained from the original site of the intra-abdominal abscess, peritonitis, or surgical wound infection during the study; Presumed: repeat microbiological data were not obtained for a participant with a clinical response of failure. Superinfection: Emergence of a new pathogen during therapy, at the site of infection with emergence or worsening of clinical signs and symptoms of infection.

Other outcomes

  1. Number of Participants With Treatment-Emergent Adverse Events (AEs) by Relationship and Seriousness

    Time frame: From the first dose of study treatment through post therapy follow-up (28 days after the last dose of therapy)

    An AE was any untoward medical occurrence without regard to causality in a participant who received study drug. A SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both AEs and Non-SAEs.

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Registry information

Official study title

A Multicenter, Double-blind, Randomized, Comparison Study Of The Efficacy And Safety Of Tigecycline To Imipenem/Cilastatin To Treat Complicated Intra-abdominal Infections In Hospitalized Subjects.

Important dates

Study start
2012
Primary completion
2015
Study completion
2015
First posted
Nov 5, 2012
Registry last updated
Apr 9, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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