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Pneumonia, BacterialPhase 2NCT00707239

Study Evaluating Safety and Efficacy of Tigecycline Versus Imipenem/Cilastatin Subjects With Hospital-Acquired Pneumonia

A Phase 2 study testing tigecycline and imipenem/cilastatin in people with Pneumonia, Bacterial, run by Pfizer at 40 sites in 14 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study will compare the safety and efficacy of a tigecycline regimen versus an imipenem/cilastatin regimen for the treatment of subjects who are hospitalized with hospital-acquired pneumonia (HAP). At least 70% of enrolled subjects will have ventilator-associated pneumonia (VAP). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pneumonia, Bacterial
What is being tested?
tigecycline and imipenem/cilastatin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
108 participants
Where
40 sitesin 14 countries
Study dates
Dec 2008to Jun 2011
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female subjects, greater than or equal to 18 years of age, known or suspected to have acute hospital-acquired pneumonia (HAP).
  • Acute HAP is defined as pneumonia with onset of symptoms:
  • Greater than or equal to 48 hours after admission to an acute care hospital or chronic care facility such as a skilled nursing home facility or rehabilitation unit. Or
  • Less than or equal to 7 days after the subject was discharged from the hospital. The initial hospitalization must have been greater than or equal to 3 days duration.
  • VAP is defined as: onset of symptoms of pneumonia greater than or equal to 48 hours after endotracheal intubation.
  • Presence of a new or evolving infiltrate on a chest x-ray film, presence of fever or leukocytosis, respiratory failure requiring mechanical ventilation or presence of 2 of the following clinical signs and symptoms: cough, dyspnea or tachypnea, pleuritic chest pain, rales and/or evidence of pulmonary consolidation, hypoxemia, or purulent sputum production.

Who cannot join

  • Subjects with other significant underlying conditions that would make it difficult to evaluate the subjects or make it unlikely to complete the therapy or that would increase their risk by participating in the study, infection with organisms known to be resistant, contraindication, or hypersensitivity to any of the test articles.

Trial locations and contacts

40 sites in 14 countries.

40 sites in 14 countries

Russia6 sites
  • Pfizer Investigational Site

    Moscow, 119620

  • Pfizer Investigational Site

    Moscow, 121359

  • Pfizer Investigational Site

    Novosibirsk, 630051

  • Pfizer Investigational Site

    Saint Petersburg, 194354

  • Pfizer Investigational Site

    Saint Petersburg, 196247

  • Pfizer Investigational Site

    Vsevolozhsk, 188640

Other trials in Russia

Argentina4 sites
  • Pfizer Investigational Site

    Godoy Cruz, Mendoza Province

  • Pfizer Investigational Site

    La Plata, Buenos Aires, 1900

  • Pfizer Investigational Site

    La Plata, Buenos Aires, B1900AVG

  • Pfizer Investigational Site

    Provincia de Buenos Aires

Other trials in Argentina

Hungary4 sites
  • Pfizer Investigational Site

    Debrecen, 4043

  • Pfizer Investigational Site

    Nyíregyháza, 4400

  • Pfizer Investigational Site

    Székesfehérvár, 8000

  • Pfizer Investigational Site

    Vác, 2600

Other trials in Hungary

South Korea4 sites
  • Pfizer Investigational Site

    Seoul, Korea, 135 710

  • Pfizer Investigational Site

    Seoul, Korea, 136-705

  • Pfizer Investigational Site

    Seoul, Korea, 138-736

  • Pfizer Investigational Site

    Seoul, Korea, 152-703

Other trials in South Korea

Taiwan4 sites
  • Pfizer Investigational Site

    Tainan, Taiwan, 407

  • Pfizer Investigational Site

    Tainan

  • Pfizer Investigational Site

    Taipei, Taiwan, 100

  • Pfizer Investigational Site

    Taipei TOC, 100

Other trials in Taiwan

United States3 sites
  • Pfizer Investigational Site

    Louisville, Kentucky

  • Pfizer Investigational Site

    Morgantown, West Virginia, 26506

  • Pfizer Investigational Site

    Omaha, Nebraska, 68131

Other trials in United States

Brazil3 sites
  • Pfizer Investigational Site

    Belo Horizonte, Minas Gerais, 30150-221

  • Pfizer Investigational Site

    Porto Alegre, Rio Grande do Sul, 90610-000

  • Pfizer Investigational Site

    São José do Rio Preto, São Paulo, 15090-000

Other trials in Brazil

Latvia3 sites
  • Pfizer Investigational Site

    Daugavpils, LV-5417

  • Pfizer Investigational Site

    Riga, 1001

  • Pfizer Investigational Site

    Riga, LV-1001

Other trials in Latvia

Australia2 sites
  • Pfizer Investigational Site

    Nambour, Queensland, 4560

  • Pfizer Investigational Site

    Victoria, Victoria, 3128

Other trials in Australia

Canada2 sites
  • Pfizer Investigational Site

    Chicoutimi, Quebec, G7H 5H6

  • Pfizer Investigational Site

    Trois-Rivières, Quebec, G8Z 3R9

Other trials in Canada

Colombia2 sites
  • Pfizer Investigational Site

    Bogotá

  • Pfizer Investigational Site

    Medellín, Antioquia

Other trials in Colombia

Chile1 site
  • Pfizer Investigational Site

    Santiago, Santiago Metropolitan

Other trials in Chile

Croatia1 site
  • Pfizer Investigational Site

    Zagreb, 10000

Other trials in Croatia

France1 site
  • Pfizer Investigational Site

    Argenteuil, 95100

Other trials in France

About this study

Official title: A Phase 2, Multicenter, Randomized, Double-Blind, Comparative Study Of The Safety And Efficacy of 2 Doses Of Tigecycline Versus Imipenem/Cilastatin For The Treatment Of Subjects With Hospital-Acquired Pneumonia

This study will compare the safety and efficacy of a tigecycline regimen versus an imipenem/cilastatin regimen for the treatment of subjects who are hospitalized with hospital-acquired pneumonia (HAP). At least 70% of enrolled subjects will have ventilator-associated pneumonia (VAP). Two dose levels of tigecycline will be assessed and compared to imipenem/cilastatin in parallel. Subjects will receive intravenous therapy from a minimum of 7 \& up to 14 consecutive days, the exact duration will be at the decision of the investigator based on the subject's condition. Additional protocol specified antibiotics may be given to ensure appropriate coverage. A final assessment at test-of-cure (TOC) visit will be done 10 to 21 days after the last day of therapy. The total duration of subject participation will be between 17 and 44 days, including a follow up period of 30 days after the last day of therapy for SAEs.

Subjects will be followed for safety and efficacy. The safety assessment will include: physical examinations, vital signs, assessment of the clinical signs and symptoms of pneumonia, collection of adverse events, 12-lead ECG, collection of samples for hematology, serum chemistries, and coagulation parameters, \& a serum or urine pregnancy test before study entry for women of childbearing potential. The clinical and microbiological efficacy will both be evaluated.

Read the detailed description

The sponsor internal decision has been taken to close the study on 15 of July 2011, due to difficulties in enrollment. This decision was not based on any safety issues.

Being tested
tigecycline, imipenem/cilastatin
Keywords
Hospital-acquired pneumonia, Ventilator-associated pneumonia
Medical subject headings
Pneumonia, Bacterial, Healthcare-Associated Pneumonia, Pneumonia, Ventilator-Associated

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • tigecyclineDrug

    An initial intravenous (IV) loading dose of 150 mg of tigecycline, followed by 75 mg of IV tigecycline approximately every 12 hours (q12h), for up to 14 consecutive days. Ceftazidime 2 g IV approximately every 8 hours, an aminoglycoside (tobramycin 7mg/kg daily or amikacin 20 mg/kg daily) and vancomycin placebo given at the start of therapy (unless it is known at baseline that the subject does not have Pseudomonas aeruginosa or methicillin-resistant Staphylococcus aureus [MRSA]).

  • tigecyclineDrug

    An initial intravenous (IV) loading dose of 200 mg of tigecycline, followed by 100 mg of IV tigecycline approximately every 12 hours (q12h), for up to 14 consecutive days. Ceftazidime 2 g IV approximately every 8 hours, an aminoglycoside (tobramycin 7mg/kg daily or amikacin 20 mg/kg daily) and vancomycin placebo given at the start of therapy (unless it is known at baseline that the subject does not have Pseudomonas aeruginosa or methicillin-resistant Staphylococcus aureus [MRSA]).

  • imipenem/cilastatinDrug

    Imipenem/cilastatin 1g intravenous (IV) will be administered approximately every 8 hours, for up to 14 consecutive days. In addition vancomycin 15 mg/kg IV approximately every 12 hours (q12h), an aminoglycoside (tobramycin 7mg/kg daily or amikacin 20 mg/kg daily) and ceftazidime placebo will be given at the start of therapy (unless it is known at baseline that the subject does not have Pseudomonas aeruginosa or methicillin-resistant Staphylococcus aureus [MRSA]).

Study groups in NCT00707239
Study groupRoleWhat they receive
AExperimentalNot described
Receives: Drug: tigecycline
BExperimentalNot described
Receives: Drug: tigecycline
CActive comparatorNot described
Receives: Drug: imipenem/cilastatin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Clinical Response in Clinically Evaluable (CE) Population at Test-of-Cure (TOC) Visit

    Clinical response: Cure=All initial signs/symptoms of pneumonia (SSx) improved; chest x-ray (CXR) improved/stable; no other antibiotics for pneumonia; no worsening or new SSx. Failure=Persistence or worsening SSx; no clinical improvement or initial improvement with clinically important worsening; other antimicrobials for pneumonia; CXR progression; death > study day 2 due to pneumonia. Indeterminate=unable to determine outcome for non-study drug/infection reasons (e.g., lost to follow-up); death in 2 days after 1st dose for any reason, or >2 days but before TOC visit for non-pneumonia reason.

    Measured: Up to Day 24 to 35 (10 to 21 days after last day of therapy [LDOT])

Secondary outcomes (4)
  1. Percentage of Participants With Clinical Response in Clinical Modified Intent-to-treat (c-mITT) Population at Test-of-Cure (TOC) Visit

    Clinical response: Cure=All initial SSx improved; CXR improved/stable; no other antibiotics for pneumonia; no worsening or new SSx. Failure=Persistence or worsening SSx; no clinical improvement or initial improvement with clinically important worsening; other antimicrobials for pneumonia; CXR progression; death > study day 2 due to pneumonia. Indeterminate=unable to determine outcome for non-study drug/infection reasons (e.g., lost to follow-up); death in 2 days after 1st dose for any reason, or >2 days but before TOC visit for non-pneumonia reason.

    Measured: Up to Day 24 to 35 (10 to 21 days after LDOT)

  2. Percentage of Participants With Clinical Response in Ventilator Associated Pneumonia (VAP) and Non-VAP Participants at Test-of-Cure (TOC) Visit

    Clinical response: Cure=All initial SSx improved; CXR improved/stable; no other antibiotics for pneumonia; no worsening or new SSx. Failure=Persistence or worsening SSx; no clinical improvement or initial improvement with clinically important worsening; other antimicrobials for pneumonia; CXR progression; death > study day 2 due to pneumonia. Indeterminate=unable to determine outcome for non-study drug/infection reasons (e.g., lost to follow-up); death in 2 days after 1st dose for any reason, or >2 days but before TOC visit for non-pneumonia reason.

    Measured: Up to Day 24 to 35 (10 to 21 days after LDOT)

  3. Percentage of Participants With Microbiological Response at the Pathogen Level Population at Test-of-Cure (TOC) Visit

    Eradication=baseline isolate not present in repeat culture from the original infection site; Presumed Eradication=clinical response of cure precluded the availability of a specimen for culture; Persistence=baseline isolate present in repeat culture from the original infection site; Presumed Persistence=culture data not available for participants with a clinical response of failure; Indeterminate=unable to determine outcome for non-study drug/infection reasons; no baseline isolate; death in 2 days after 1st dose for any reason, or >2 days but before TOC visit for non-pneumonia reason.

    Measured: Up to Day 24 to 35 (10 to 21 days after LDOT)

  4. Percentage of Participants With Microbiological Response at the Participant Level Population at Test-of-Cure (TOC) Visit

    Microbiological response assessed at participant level. Eradication = baseline isolate not present in repeat culture from the original infection site; Presumed Eradication = clinical response of cure precluded the availability of a specimen for culture; Persistence = baseline isolate present in repeat culture from the original infection site; Presumed Persistence = culture data not available for participants with a clinical response of failure; Superinfection = culture from the primary infection site had new pathogen not identified as a baseline isolate and clinical response was failure.

    Measured: Up to Day 24 to 35 (10 to 21 days after LDOT)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Jun 2008 (estimated)
  2. Study startDec 2008
  3. Primary completionJun 2011
  4. Study completionJun 2011

Why it stopped: See termination reason in detailed description.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
108 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00707239
Sponsor's protocol ID
3074K6-2000
Other IDs
B1811004
Status last verified
Jun 2012
First submitted
26 Jun 2008
Last updated
10 Jul 2012
Data monitoring committee
Yes

Publications

  • Ramirez J, Dartois N, Gandjini H, Yan JL, Korth-Bradley J, McGovern PC. Randomized phase 2 trial to evaluate the clinical efficacy of two high-dosage tigecycline regimens versus imipenem-cilastatin for treatment of hospital-acquired pneumonia. Antimicrob Agents Chemother. 2013 Apr;57(4):1756-62. doi: 10.1128/AAC.01232-12. Epub 2013 Jan 28.

    PubMed 23357775

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing tigecycline and imipenem/cilastatin in people with Pneumonia, Bacterial, run by Pfizer at 40 sites in 14 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 10 Jul 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 40 sites in Russia, Argentina, Hungary, South Korea, Taiwan and 9 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Jul 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Clinical Response in Clinically Evaluable (CE) Population at Test-of-Cure (TOC) Visit (time frame: Up to Day 24 to 35 (10 to 21 days after last day of therapy [LDOT])). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00707239, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jul 2012.

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