UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000049016
Receipt number R000055809
Scientific Title Randomised Controlled Trial of Meropenem versus Cefmetazole for definitive treatment of bloodstream infections due to ESBL- producing Escherichia coli
Date of disclosure of the study information 2022/09/26
Last modified on 2023/11/08 12:52:29

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Basic information

Public title

Randomised Controlled Trial of Meropenem versus Cefmetazole for definitive treatment of bloodstream infections due to ESBL- producing Escherichia coli

Acronym

CEFMEC Trial

Scientific Title

Randomised Controlled Trial of Meropenem versus Cefmetazole for definitive treatment of bloodstream infections due to ESBL- producing Escherichia coli

Scientific Title:Acronym

CEFMEC Trial

Region

Japan


Condition

Condition

bloodstream infections due to ESBL- producing Escherichia coli

Classification by specialty

Infectious disease

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

The purpose of this trial is to show that cefmetazole (a carbapenem-sparing therapy) is non-inferior to meropenem (a widely used carbapenem) in definitive treatment of bloodstream infections due to ESBL- producing Escherichia coli

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

30-day all-cause mortality of cefmetazole and meropenem after bloodstream infection (randomized day = day 1)

Key secondary outcomes

1) 14-day all-cause mortality of cefmetazole and meropenemafter bloodstream infection (randomized day = day 1)

2) Microbiological success rate: defined as negative blood cultures taken on or before day 5 (randomized day = day 1).

3) Clinical success rate: resolution of fever (body temperature [axillary temperature] 37.5 Celsius or higher) and leukocytosis (WBC>12000/micro-liter) on or before day 5 (randomized days = day 1)

4) clinical and microbiological success rate: 2) and 3)

5) Time to resolution of fever: Number of days from randomization to resolution of fever (eg, if fever resolved on the next day of randomization, count as 1 day). Resolution of fever is defined as temperature less than or equal to 37.5 Celsius for at least 24 hours.The first day when the temperature becomes below 37.5 Celsius is recorded.

6) Recurrence of bloodstream infection: Bloodstream infection due to ESBL-producing E. coli by day 30 after the end of the study drug administration period (randomized day = day 1)

7) Detection rate of carbapenem-resistant bacteria or cefmetazol-resistant bacteria, or incidence of Clostridioides difficile infection: Isolation of carbapenem-resistant organisms (CROs) or cefmetazole resistant organisms (CMZROs) from clinical specimens (excluding specimens for surveillance purposes) or positive stool tests for C. difficile toxin from day 5 of study drug administration to day 30 of randomization.

8) Ordinal scale evaluation by Desirability of Outcome Ranking (DOOR)


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

Study drug: cefmetazole sodium
Cefmetazole 1g intravenously (over 30 minutes) every 8 hours. For 5 day to 14 days.

Interventions/Control_2

Control drug: Meropenem hydrate
Meropenem 1g intravenously (over 30 minutes) every 8 hours. For 5 day to 14 days.

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) Patient or whose legal representatives provided written informed consent for the study participation

2) Persons who are 18 years of age or older at the time of obtaining consent

3) Within 72 hours from the time of the first blood culture collection

4) E. coli isolated from blood meetsany of the following

1. ceftriaxone or cefotaxime-resistant (MIC 2mg/L or higher), meropenem-sensitive (MIC 1mg/L or lower), and cefmetazole MIC 16mg/L or lower

2. E. coli and CTX-M gene are positive in the genetic testing system and any carbapenemase gene is negative

3. ESBL productivity of E. coli is confirmed or strongly suspected (e.g. ESBL pattern in beta-lactamase detection kit or ESBL screening medium test positive)

If a patient is enrolled by meeting criteria 4) 2 or 4) 3, however, later, 4) 1 is found out not to be satisfied, then, the participation in the study will be discontinued.

Key exclusion criteria

1) Participation in other intervention studies

2) History of allergy to cefmetazole or carbapenem

3) Bacteremia due to multiple bacteria (excluding skin contaminants)

4) Patients expected to die within 4 days after randomization (randomized day = day 1)

5) Patients who are expected to be difficult to follow during the first 30 days after randomization (day of randomization = day 1)

6) Pregnant women and breastfeeding women

7) Patients on dialysis or patients whose creatinine clearance (based on Cockcroft-Gault formula) is less than 10ml/min

8) Patients expected to receive additional antibiotics active against Gram-negative bacilli by day 5 after randomization (excluding sulfamethoxazole and trimethoprim for prevention of Pneumocystis pneumonia) (day of randomization = Day 1)

9) Confirmed or strongly suspected carbapenemase-producing or AmpC-producing E. coli from blood culture (e.g. carbapenemase-positive with carbapenemase detection kit or AmpC pattern-positive with beta-lactamase detection kit, carbapenemase screening medium positive)

10) Patients currently using sodium valproate or expected to use it by day 5 after randomization (randomized day = day 1)

11) Persons who are judged inappropriate for inclusion in the research by the principal investigator at each test site

Target sample size

169


Research contact person

Name of lead principal investigator

1st name Kayoko
Middle name
Last name Hayakawa

Organization

National Center for Global Health and Medicine

Division name

Disease Control and Prevention Center

Zip code

162-8655

Address

1-21-1 Toyama Shinjuku-ku, Tokyo, Japan

TEL

0332027181

Email

khayakawa@hosp.ncgm.go.jp


Public contact

Name of contact person

1st name Kayoko
Middle name
Last name Hayakawa

Organization

National Center for Global Health and Medicine

Division name

Disease Control and Prevention Center

Zip code

162-8655

Address

1-21-1 Toyama Shinjuku-ku, Tokyo, Japan

TEL

0332027181

Homepage URL


Email

cefmec-dcc@hosp.ncgm.go.jp


Sponsor or person

Institute

National Center for Global Health and Medicine, Disease Control and Prevention Center

Institute

Department

Personal name



Funding Source

Organization

Ministry of Health, Labour and Welfare

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor

Fujita Health University

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Certified Review Board of National Center for Global Health and Medicine

Address

1-21-1 Toyama Shinjuku-ku, Tokyo 162-8655, Japan

Tel

03-3202-7181

Email

kenkyu-shinsa@hosp.ncgm.go.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

国立研究開発法人国立国際医療研究センター(東京都)、藤田医科大学(愛知県)、京都大学医学部附属病院(京都府)、市立伊勢総合病院(三重県)、横浜市立大学附属病院(神奈川県)、大分大学医学部附属病院(大分県)、りんくう総合医療センター(大阪府)、京都市立病院(京都府)、自治医科大学附属さいたま医療センター(埼玉県)、新潟大学医歯学総合病院(新潟県) 、静岡県立静岡がんセンター(静岡県)、静岡県立総合病院(静岡県)、奈良県立医科大学(奈良県)、兵庫県立はりま姫路総合医療センター(兵庫県)、名古屋医療センター(愛知県)、飯塚病院(福岡県)、愛媛県立中央病院(愛知県)、横浜市立みなと赤十字病院(神奈川県)、社会医療法人財団 慈泉会 相澤病院(長野県)、筑波メディカルセンター病院(茨城県)、敬愛会中頭病院(沖縄県)、島根大学医学部附属病院(島根県)、医療法人渓仁会 手稲渓仁会病院(北海道)、大阪市立総合医療センター(大阪府)、洛和会音羽病院(京都府)、安城更生病院(愛知県)、厚生連高岡病院(富山県)、日本赤十字社愛知医療センター名古屋第一病院(愛知県)、富山県立中央病院(富山県)、愛知県がんセンター(愛知県)、伊勢赤十字病院(三重県)、東京都立多摩総合医療センター(東京都)


Other administrative information

Date of disclosure of the study information

2022 Year 09 Month 26 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Enrolling by invitation

Date of protocol fixation

2022 Year 08 Month 24 Day

Date of IRB

2022 Year 09 Month 20 Day

Anticipated trial start date

2022 Year 10 Month 03 Day

Last follow-up date

2025 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Establishment of the DSMB
At the end of the first 50 patients
At the end of the first 98 patients Total DSMB As above, by treatment group


Management information

Registered date

2022 Year 09 Month 26 Day

Last modified on

2023 Year 11 Month 08 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000055809


Research Plan
Registered date File name
2023/08/29 CEFMEC protocol 20230606_ver 1.2.pdf

Research case data specifications
Registered date File name

Research case data
Registered date File name