Comparison between two antibiotic schemes to improve the results in patients with premature rupture of membranes

ISRCTN ISRCTN25718638
DOI https://doi.org/10.1186/ISRCTN25718638
ClinicalTrials.gov number Nil Known
Secondary identifying numbers 16943243
Submission date
16/08/2023
Registration date
29/08/2023
Last edited
29/08/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Premature rupture of membranes (PROM) is a pregnancy complication when your water breaks before labor starts. The treatment scheme of choice in patients with PROM before 34 weeks, who do not present an infection within their amniotic cavity (intraamniotic infection), is not entirely clear. The national standards of Chile indicate that two antibiotics should be used together. There may be a better rate of absence of intraamniotic infection after treatment with three antibiotics together, reaching a broad spectrum of coverage against germs. Keeping the amniotic cavity free of infection is a determining factor in the management of this type of patient since it improves perinatal health. The aim of this study is to evaluate which antibiotic scheme (a regimen of two antibiotics, ampicillin and erythromycin, versus a regimen of three antibiotics, ceftriaxone, metronidazole and clarithromycin) has better results in maintaining the intraamniotic cavity without infection.

Who can participate?
Women over 18 years of age who are pregnant between 24+0 and 32+6 weeks of single live gestation, with PROM and without intraamniotic infection

What does the study involve?
Patients will be randomly divided into two groups (a regimen of two antibiotics, ampicillin and erythromycin, versus a regimen of three antibiotics, ceftriaxone, metronidazole and clarithromycin). Antibiotics will be administered for 10 days and after 48 to 72 days of finishing the antibiotics, a new test of intrauterine infection will be carried out. The latency of both antibiotic schemes (the days that elapse between starting the antibiotics and the birth), the perinatal results of the newborn and eventual maternal compromises are also measured.

What are the possible benefits and risks of participating?
As both antibiotic schemes are approved for use in pregnant women, patients will not be exposed to risks. However, by agreeing to participate in the study, they must undergo a study of amniotic fluid after the use of antibiotics, which adds an associated risk since this analysis is performed with a sample of amniotic fluid obtained by amniocentesis (puncture of the uterus until reaching the amniotic cavity and obtaining amniotic fluid). Among the risks associated with this procedure is the possibility of triggering labor or producing bleeding within the amniotic cavity or causing injuries to the umbilical cord or directly to the fetus, but all these possible complications occur in less than 1% of cases. On the other hand, by agreeing to participate, they will be able to help determine with a better basis and scientific evidence whether using a new antibiotic therapy scheme that has greater coverage against germs improves the results both for them and for their fetuses.

Where is the study run from?
Padre Hurtado Hospital (Chile)

When is the study starting and how long is it expected to run for?
May 2021 to December 2024

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Rodrigo Benitez Penroz, rodrigo.benitezpenroz@gmail.com

Contact information

Dr Rodrigo Benitez
Public

Esperanza 2150
Santiago
8340267
Chile

ORCiD logoORCID ID 0009-0008-8420-8728
Phone +56 (0)978283446
Email rodrigo.benitezpenroz@gmail.com
Dr Rodrigo Benitez
Scientific

Esperanza 2150
Santiago
8340267
Chile

Phone +56 (0)978283446
Email rodrigo.benitezpenroz@gmail.com

Study information

Study designMulticenter interventional randomized trial
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleComparison between triassociated and biassociated antibiotic scheme in patients with premature rupture of membranes between 24+0 and 32+6 weeks, with negative amniocentesis for intra-amniotic infection: a multicenter randomized prospective study (TRIBIAN)
Study acronymTRIBIAN
Study objectivesThe triassociated antibiotic scheme has better results in patients with PROM under 33 weeks with negative amniocentesis for intraamniotic infection (IAI), in terms of persistence of the absence of IAI and increased latency period compared to the biassociated scheme
Ethics approval(s)

Approved 20/05/2022, Cómite De Etica Servicio De Salud Metropolitano Sur Oriente (Camino Las Lavandulas 7984, Santiago, 8340267, Chile; +56 (0)225762401, +56 (0)225765163; comiteeticocientifico@ssmso.cl), ref: 78283446

Health condition(s) or problem(s) studiedAntibiotic treatment in patients with preterm premature rupture of membranes, less than 33 weeks
InterventionParticipants are randomized using the Excel program and their national identification document into two groups. Group A is managed with biassociated antibiotics: (first 48 hours) ampicillin 1 g every 6 hours intravenously + erythromycin 500 mg every 6 hours po, after 48 hours of treatment ampicillin is changed to amoxicillin 500 mg every 8 hours until completing 10 days of treatment. Group B will be managed with a triassociated antibiotic regimen (ceftriaxone 2 g intravenously every 24 hours, metronidazole 500 mg intravenously every 8 hours, clarithromycin 500 mg every 12 hours orally. After 10 days of treatment, 72 hours will be waited to perform a control amniocentesis and thus compare what percentage of each group remained without intraamniotic infection
Intervention typeOther
Primary outcome measureControl amniocentesis after antibiotic treatment and comparison of infection parameters, such as glucose, cell count, GRAM test and cell culture, at 14 days after the start of antibiotic treatment (10 days of antibiotics and 72 hours after the end, the new amniotic fluid analysis will be performed).
Secondary outcome measures1. The latency period (the period that elapses from diagnosis to delivery): comparison between the date of initiation of antibiotic therapy and the date of birth on the birth certificate
2. The need for respiratory support in the newborn (NB) recorded in clinical records in the first 30 days of life
3. The prevalence of premature abruption of the placenta with normal insertion: clinical diagnosis recorded in the clinical record by the obstetrician or midwife who attends the delivery or caesarean section in the first 6 hours postpartum
4. The prevalence of neonatal necrotizing enterocolitis during the first 30 days of life, through clinical-radiological diagnosis
5. The prevalence of neonatal sepsis during the first 30 days of life, by clinical diagnosis made by a neonatologist using the Kaiser Permanente research classification"Neonatal Early-Onset Sepsis Calculator
6. The hospital stay in the neonatal intensive care unit during the first 30 days of life, through clinical records
7. The prevalence of clinical choriamyonitis diagnosed using Gibbs criteria from the start of antibiotic treatment until delivery
8. Maternal mortality from the moment of diagnosis until 42 days postpartum, evaluated by death certificate
9. Neonatal mortality from the moment of diagnosis until 28 days of life, evaluated by death certificate
10. The prevalence of puerperal endometritis using clinical diagnosis for the first 30 days after delivery
11. The reason for terminating the pregnancy (scheduled interruption of pregnancy vs emergency due to an added diagnosis, determined by evaluating clinical records)
Overall study start date01/05/2021
Completion date20/12/2024

Eligibility

Participant type(s)Patient
Age groupAll
Lower age limit18 Years
Upper age limit50 Years
SexFemale
Target number of participants60 patients, 30 in each group
Key inclusion criteria1. Pregnant women between 24+0 and 32+6 weeks
2. Diagnosis of premature rupture of membranes
3. Negative admission amniocentesis for intra-amniotic infection
Key exclusion criteria1. Patients outside the gestational age range
2. Positive admission amniocentesis for intra-amniotic infection
3. Concomitant infectious process that requires antibiotics (e.g. COVID-19; pyelonephritis, bacterial pneumonia, tonsillitis or another that requires antibiotic use)
4. Patient with a history of recent use of antibiotics in the last 10 days
5. Patient allergic to any of the antibiotics proposed in the different schemes
6. Patient undergoing multiple pregnancy
7. Patients who do not wish to participate and therefore do not sign the informed consent
Date of first enrolment20/05/2022
Date of final enrolment20/11/2024

Locations

Countries of recruitment

  • Chile

Study participating centres

Hospital Padre Hurtado
Esperanza 2150
San Ramon
Santiago
8880465
Chile
Hospital La Florida
Froilán Roa 6542
La florida
Santiago
8242238
Chile

Sponsor information

Hospital Padre Hurtado
Hospital/treatment centre

Esperanza 2150
Santiago
8340267
Chile

Phone +56 (0)981598822
Email berniwalkerl@gmail.com
Website http://www.hph.cl/
ROR logo "ROR" https://ror.org/03b3qq257

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date28/02/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from Dr Rodrigo Benitez Penroz (rodrigo.benitezpenroz@gmail.com)

The type of data that will be shared: The tabulation of the data will be able to be shared.
Dates of availability: After the publication of the study.
Whether consent from participants was required and obtained: Informed consent is required and the patient enters the study only if she has previously accepted and signed it.
Any ethical or legal restrictions: The study is approved by the ethics committee and has no particular ethical restrictions.

Editorial Notes

29/08/2023: Study's existence confirmed by the Cómite De Etica Servicio De Salud Metropolitano Sur Oriente.