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Hospital-Acquired PneumoniaPhase 4NCT04774094

Efficacy and Safety of Ceftazidime-Avibactam (CAZ-AVI) in Chinese Participants With HAP (Including VAP)

A Phase 4 study testing Zavicefta, Ceftazidime-Avibactam in people with Hospital-Acquired Pneumonia, run by Pfizer at 56 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a prospective, single arm, open-label, multi-center clinical study evaluating the effectiveness and safety of CAZ-AVI in participants with HAP (including VAP), who have initiated treatment with CAZ-AVI in an inpatient hospital setting. The duration of antibiotic treatment with the CAZ-AVI is 7-14 days. Read more about this study

Who is it for?
Ages 18 to 90 years
Conditions the study is for
Hospital-Acquired Pneumonia
What is being tested?
Zavicefta, Ceftazidime-Avibactam
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
235 participants
Where
56 sitesChina
Study dates
21 May 2021to 4 May 2023
Phase
Phase 4
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 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female participants ≥18 and ≤90 years of age.
  • Onset of symptoms ≥48 hours after admission or <7 days after discharge from an inpatient acute or chronic care facility.
  • New or worsening infiltrate on chest X-ray obtained within 48 hours prior to screening.
  • Participants have systemic signs and respiratory signs or symptoms of HAP/VAP

Who cannot join

  • Other medical or psychiatric condition may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
  • Participant is expected to require a treatment course for HAP longer than 14 days.
  • The total duration of antibiotic exposure for antibiotics whose administration begins in the 48 hours is longer than 24 hours.
  • Previous administration with an investigational drug within 30 days or 5 half lives preceding the first dose of study intervention used in this study (whichever is longer).
  • Acute Physiology and Chronic Health Evaluation (APACHE) II score >30 or <10 using the most recent available data.

Trial locations and contacts

56 sites in 1 country.

56 sites in 1 country

China56 sites
  • Affiliated Hospital of Hebei University

    Baoding, Hebei, 071000

  • Baotou Central Hospital

    Baotou, Inner Mongolia, 014000

  • Baotou Central Hospital

    Baotou, Inner Mongolia, 014040

  • Peking University Third Hospital

    Beijing, Beijing Municipality, 100191

  • Seventh Medical Center, The General Hospital of People's Liberation Army

    Beijing

  • Hunan Provincial People's Hospital

    Changsha, Hunan, 410005

  • West China Hospital of Sichuan University

    Chengdu, Sichuan, 610041

  • Chengdu Xinhua Hospital

    Chengdu, Sichuan, 610055

  • Affiliated Zhongshan Hospital of Dalian University

    Dalian, Liaoning, 116001

  • Dongyang People's Hospital

    Dongyang, Zhejiang, 322199

  • Fuyang People's Hospital

    Fuyang, Anhui, 236000

  • The First Affiliated Hospital of Fujian Medical University

    Fuzhou, Fujian, 350005

  • Guangzhou First People's Hospital

    Guangzhou, Guangdong, 510180

  • ZhuJiang Hospital of Southern Medical University

    Guangzhou, Guangdong, 510280

  • The First Affiliated Hospital of Jinan University

    Guangzhou, Guangdong, 510630

  • Hainan General Hospital

    Haikou, Hainan, 570311

  • Zhejiang Hospital

    Hangzhou, Zhejiang, 310013

  • Zhejiang Provincial People's Hospital

    Hangzhou, Zhejiang, 310014

  • Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University

    Hangzhou, Zhejiang, 310016

  • Zhejiang Hospital

    Hangzhou, Zhejiang, 310030

  • Huai'an First People's Hospital

    Huai'an, Jiangsu, 223300

  • Huizhou Central People's Hospital

    Huizhou, Guangdong, 516008

  • Jiangyin People's Hospital

    Jiangyin, Jiangsu, 214400

  • The First Hospital of Kunming

    Kunming, Yunnan, 650034

  • The First People's Hospital of Lianyungang City

    Lianyungang, Jiangsu, 222002

  • Luoyang Central Hospital

    Luoyang, Henan, 471009

  • Jiangxi Provincial People's Hospital

    Nanchang, Jiangxi, 330038

  • The First People's Hospital of Nanning

    Nanning, Guangxi, 530022

  • NanYang central hospital

    Nanyang, Henan, 473000

  • NanYang First people's hospital

    Nanyang, Henan, 47300

  • Qingyuan People's Hospital

    Qingyuan, Guangdong, 511500

  • Sanya People's Hospital

    Sanya, Hainan, 572022

  • Huashan Hospital Fudan University

    Shanghai, Shanghai Municipality, 200040

  • Shanghai Fifth People's Hospital, Fudan University

    Shanghai, 200240

  • General Hospital of Northern Theater Command

    Shenyang, Liaoning, 110016

  • Shenzhen People's Hospital

    Shenzhen, Guangdong, 518020

  • The Second People's Hospital of Shenzhen

    Shenzhen, Guangdong, 518035

  • Shiyan Renmin Hospital

    Shiyan, Hubei, 442000

  • Taizhou People's Hospital

    Taizhou, Jiangsu, 225300

  • Tianjin Medical University General Hospital

    Tianjin, Tianjin Municipality, 300052

  • Tianjin Chest Hospital

    Tianjin, Tianjin Municipality, 300222

  • The 2nd Affiliated Hospital of WMU

    Wenzhou, Zhejiang, 325035

  • Wenzhou Central Hospital

    Wenzhou, Zhejiang, 325099

  • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

    Wuhan, Hubei, 430058

  • Renmin Hospital of Wuhan University

    Wuhan, Hubei, 430060

  • Affiliated Hospital of Jiangnan University

    Wuxi, Jiangsu, 214122

  • Zhongshan Hospital Xiamen University

    Xiamen, Fujian, 361004

  • Zhongshan Hospital Xiamen University

    Xiamen

  • The Affiliated Hospital of Xuzhou Medical University

    Xuzhou, Jiangsu, 221002

  • Subei People's Hospital of Jiangsu province

    Yangzhou, Jiangsu, 225001

  • General Hospital of Ningxia Medical University

    Yinchuan, Ningxia, 750004

  • Yueyang People's Hospital

    Yueyang, Hunan, 414020

  • Affiliated Hospital of Guangdong Medical University

    Zhanjiang, Guangdong, 524000

  • Central People's Hospital of Zhanjiang

    Zhanjiang, Guangdong, 524045

  • Henan provincial people's hospital

    Zhengzhou, Henan, 450003

  • The Affiliated Hospital of Zunyi Medical University

    Zunyi, Guizhou, 563000

Other trials in China

About this study

Official title: A SINGLE ARM, OPEN-LABEL, MULTI-CENTER, INTERVENTIONAL STUDY EVALUATING THE EFFICACY AND SAFETY OF CEFTAZIDIME-AVIBACTAM (CAZ-AVI) IN CHINESE ADULTS WITH HAP (INCLUDING VAP)

This is a prospective, single arm, open-label, multi-center clinical study evaluating the effectiveness and safety of CAZ-AVI in participants with HAP (including VAP), who have initiated treatment with CAZ-AVI in an inpatient hospital setting. The duration of antibiotic treatment with the CAZ-AVI is 7-14 days. Participants must receive intravenously (IV) CAZ-AVI in the hospital for at least 7 full days. There are no formal hypothesis tests planned for this study. The number and percent of participants having clinical cure, failure, and indeterminate at TOC visit in the cMITT analysis population will be summarized.

Being tested
Zavicefta, Ceftazidime-Avibactam
Medical subject headings
Healthcare-Associated Pneumonia

What participants receive

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

  • Zavicefta, Ceftazidime-AvibactamDrug

    Participants will receive CAZ-AVI (2000 mg of ceftazidime and 500 mg of avibactam) administered by IV infusion in a volume of 100 mL at a constant rate over 2 hours.

Study groups in NCT04774094
Study groupRoleWhat they receive
CAZ-AVIExperimentalNot described
Receives: Drug: Zavicefta, Ceftazidime-Avibactam

What is being measured

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

  1. Percentage of Participants With Clinical Cure at Test of Cure (TOC) Visit: Clinical Modified Intent-to-Treat (cMITT) Population

    Clinical cure: participants were considered to be a success for clinical response at TOC visit if the participants were not a clinical failure at end of treatment (EOT), and the participants were alive and all signs and symptoms of pneumonia were resolved or improved to an extent that no antibacterial therapy for HAP was taken between EOT and TOC inclusive. Gram negative is abbreviated as gram -ve and gram positive as gram +ve.

    Measured: TOC visit: any day from Day 21 to 25

Secondary outcomes (11)
  1. Percentage of Participants With Clinical Cure at EOT Visit: cMITT Population

    Clinical cure: participants were considered to be a success for clinical response at EOT visit if the participants were alive and all signs and symptoms of pneumonia were resolved or improved such that all antibacterial therapies for HAP/ VAP were stopped. No antibacterial therapy other than those outlined by the protocol was administered for HAP prior to EOT.

    Measured: EOT visit: within 24 hours after the completion of the last infusion of study intervention (study treatment was a minimum of 7 days and maximum of 14 days)

  2. Percentage of Participants With Clinical Cure at EOT and TOC Visit: Microbiological Modified Intent-to-Treat (mMITT) Population

    Clinical cure at EOT: participants were considered to be a success for clinical response at EOT visit if the participants were alive and all signs and symptoms of pneumonia were resolved or improved such that all antibacterial therapies for HAP/VAP were stopped. No antibacterial therapy other than those outlined by the protocol was administered for HAP prior to EOT. Clinical cure at TOC: participants were considered to be a success for clinical response at TOC visit if the participants were not a clinical failure at EOT, and the participants were alive and all signs and symptoms of pneumonia were resolved or improved to an extent that no antibacterial therapy for HAP was taken between EOT and TOC inclusive.

    Measured: EOT visit: within 24 hours after the completion of the last infusion of study intervention (study treatment was a minimum of 7 days and maximum of 14 days); TOC visit: any day from Day 21 to 25

  3. Percentage of Participants With Favorable Per-Participant Microbiological Response at the EOT and TOC Visits: mMITT Population

    For participants from whom only 1 causative pathogen is isolated, the overall microbiological response assessment was based on the microbiological response assessment for that pathogen. For participants from whom more than 1 baseline pathogen was isolated, the overall microbiological response assessment was "favorable" only if the microbiological response assessment for each of the baseline pathogens isolated was "favorable". Favorable microbiological response included eradication (an adequate source specimen demonstrated absence of the original baseline pathogen) and presumed eradication (an adequate source specimen was not available to culture and the participant was assessed as a clinical cure). In this outcome measure percentage of participants with favorable per-participant microbiological response are recorded.

    Measured: EOT visit: within 24 hours after the completion of the last infusion of study intervention (study treatment was a minimum of 7 days and maximum of 14 days); TOC visit: any day from Day 21 to 25

  4. Percentage of Participants With Favorable Per-Pathogen Microbiological Response at the EOT and TOC Visits: mMITT Population

    Favorable microbiological response included eradication (an adequate source specimen demonstrated absence of the original baseline pathogen) and presumed eradication (an adequate source specimen was not available to culture and the participant was assessed as a clinical cure). In this outcome measure percentage of participants with favorable per-pathogen microbiological response are recorded.

    Measured: EOT visit: within 24 hours after the completion of the last infusion of study intervention (study treatment was a minimum of 7 days and maximum of 14 days); TOC visit: any day from Day 21 to 25

  5. Percentage of Participants With Clinical Cure at the EOT and TOC Visits in Participants With Gram-negative Baseline Pathogens Resistant to Ceftazidime: mMITT Population

    Clinical cure at EOT: participants were considered to be a success for clinical response at EOT visit if the participants were alive and all signs and symptoms of pneumonia were resolved or improved such that all antibacterial therapies for HAP/VAP were stopped. No antibacterial therapy other than those outlined by the protocol was administered for HAP prior to EOT. Clinical cure at TOC: participants were considered to be a success for clinical response at TOC visit if the participants were not a clinical failure at EOT, and the participants were alive and all signs and symptoms of pneumonia were resolved or improved to an extent that no antibacterial therapy for HAP was taken between EOT and TOC inclusive.

    Measured: EOT visit: within 24 hours after the completion of the last infusion of study intervention (study treatment was a minimum of 7 days and maximum of 14 days); TOC visit: any day from Day 21 to 25

  6. Percentage of Participants With Favorable Per-Participant Microbiologic Response at the EOT and TOC Visits in Participants With Gram-negative Baseline Pathogens Resistant to Ceftazidime: mMITT Population

    For participants from whom only 1 causative pathogen is isolated, the overall microbiological response assessment was based on the microbiological response assessment for that pathogen. For participants from whom more than 1 baseline pathogen was isolated, the overall microbiological response assessment was "favorable" only if the microbiological response assessment for each of the baseline pathogens isolated was "favorable". Favorable microbiological response included eradication (an adequate source specimen demonstrated absence of the original baseline pathogen) and presumed eradication (an adequate source specimen was not available to culture and the participant was assessed as a clinical cure). In this outcome measure percentage of participants with favorable per-participant microbiological response are recorded.

    Measured: EOT visit: within 24 hours after the completion of the last infusion of study intervention (study treatment was a minimum of 7 days and maximum of 14 days); TOC visit: any day from Day 21 to 25

  7. Percentage of Participants With Death Due to Any Cause at the TOC Visit and at Day 28 Visit: cMITT Population

    Measured: TOC visit: any day from Day 21 to 25; Day 28

  8. Percentage of Participants With Death Due to Any Cause at the TOC Visit and at Day 28 Visit: mMITT Population

    Measured: TOC visit: any day from Day 21 to 25; Day 28

  9. Number of Participants With Treatment Emergent Adverse Events (TEAEs)

    An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Serious adverse event (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 SAEs and all non-SAEs that occurred in the study. TEAEs were AEs between first dose of study treatment and up to 32 days post last dose that were absent before treatment or that worsened relative to pretreatment state.

    Measured: Day 1 up to 32 days after last dose of CAZ-AVI (maximum up to 46 days; maximum treatment duration was of 14 days)

  10. Number of Participants With Clinically Significant Post-Baseline Laboratory Test Abnormalities

    Hematology: Hemoglobin (Hg), hematocrit, erythrocytes: less than (<)0.8*lower limit of normal (LLN) \& change (chg) more than (>)20% decrease (dec); platelets: <0.65*LLN \& chg >50% dec \&, >1.5* upper limit of normal (ULN) \& chg >100% increase (inc); leukocytes: <0.65*LLN \& chg >60% dec \&, >1.6*ULN \& chg >100% inc; lymphocytes, <0.25*LLN \& chg >75% dec; neutrophils: <0.65*LLN \& chg >75% dec \&, >1.6*ULN \& chg >100% inc; basophils, monocytes: >4.0* ULN \& chg >300% inc. Clinical chemistry: bilirubin: >2.0*ULN \& chg >150% inc; aspartate aminotransferase (AT) \& Alanine AT: >3.0*ULN \& chg >200% inc; alkaline phosphatase <0.5*LLN \& chg >80% dec \& >2.0*ULN \& chg >100% inc; creatinine: >2.0*ULN \& >chg 100% inc; sodium: <0.85*LLN \& chg >10% dec \& >1.1*ULN \& chg >10% inc; potassium \& chloride: <0.8*LLN \& chg >20% dec \& >1.2*ULN \& chg >20% dec; calcium: <0.7*LLN \& chg >30% dec \& bicarbonate: <0.7*LLN \& chg >40% dec. Clinical significance was judged by investigator.

    Measured: Day 1 up to 32 days after last dose of CAZ-AVI (maximum up to 46 days; maximum treatment duration was of 14 days)

  11. Number of Participants With Vital Signs Data According to Pre-defined Criteria

    Vital signs included diastolic blood pressure (millimeters of mercury [mmHg]); pulse rate (beats per minute [bpm]) and systolic blood pressure (mmHg). Pre-defined criteria: Diastolic blood pressure: Value <50 mmHg, Diastolic blood pressure: Change more than or equal to (>=) 20 mmHg increase, Diastolic blood pressure: Change >= 20 mmHg decrease, Pulse rate: Value <40 bpm, Pulse rate: Value >120 bpm, Systolic blood pressure: Value <90 mmHg, Systolic blood pressure: Change >= 30 mmHg increase, Systolic blood pressure: Change >= 30 mmHg decrease. One participant could have more than one vital sign abnormality.

    Measured: Day 1 up to 32 days after last dose of CAZ-AVI (maximum up to 46 days; maximum treatment duration was of 14 days)

Timeline

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

  1. First posted1 Mar 2021
  2. Study start21 May 2021
  3. Primary completion4 May 2023
  4. Study completion4 May 2023

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 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
235 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04774094
Sponsor's protocol ID
C3591026
Status last verified
Apr 2024
First submitted
5 Feb 2021
Last updated
19 Sep 2024
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Zavicefta, Ceftazidime-Avibactam in people with Hospital-Acquired Pneumonia, run by Pfizer at 56 sites in China.

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 4 inclusion and 5 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: finished, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 56 sites in China. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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 19 Sep 2024). 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 Cure at Test of Cure (TOC) Visit: Clinical Modified Intent-to-Treat (cMITT) Population (time frame: TOC visit: any day from Day 21 to 25). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 19 Sep 2024.

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