Skip to content
Clinical Trials – home
Recruiting

Antibiotic Treatment with Clindamycin and Benzylpenicillin to Prevent Group G and C Streptococcal Infections in Pregnant Women

Verified siteRegistered drug
Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

What is this trial about?

A plain-language summary of the goals, design and what participants do

This clinical trial is focused on preventing infections caused by Group G and C Streptococcus during childbirth. These bacteria can be part of the natural flora found in the vaginal and rectal areas of some pregnant women. The study aims to evaluate the effectiveness of giving antibiotics during labor to prevent infections in both the mother and the newborn. The antibiotics being studied are Clindamycin and Benzylpenicillin, which are administered through an injection or infusion.

Participants in this study are pregnant women who have been found to carry Group G or C Streptococcus in their vaginal-rectal area during routine screening in late pregnancy. The study will compare the effects of the antibiotics with a placebo to determine their effectiveness in preventing infections. The main goal is to see if these antibiotics can reduce the risk of postpartum infections in mothers and any related complications in newborns.

The study will follow participants from the time of labor through the postpartum period, which is the time after childbirth. Researchers will monitor for any infections in the mother that require antibiotic treatment up to three months after delivery. They will also observe the health of the newborn, including any need for additional medical care. The study is expected to provide valuable information on the best ways to prevent infections during and after childbirth.

The research process

The trial runs in 5 steps – from screening to follow-up. Each step says what happens and what the team monitors.

  1. Step 1

    Joining the study

    Participation begins after confirmation of carrying Group G or C Streptococcus in the vaginal-rectal flora. This is determined by a culture taken between 35 and 38 weeks of pregnancy.

  2. Step 2

    Administration of antibiotics during labor

    During labor, antibiotics are administered intravenously to prevent infections. The medications used are Clindamycin and Benzylpenicillin, both provided as solutions for injection or infusion.

    The specific dosage and frequency of administration are determined by the healthcare provider based on individual needs.

  3. Step 3

    Monitoring after childbirth

    After delivery, monitoring occurs to check for any signs of infection in the mother. This includes observing for symptoms that may require further antibiotic treatment up to three months postpartum.

  4. Step 4

    Evaluation of newborn health

    The newborn's health is assessed, including the need for blood cultures or antibiotic treatment. The possibility of transfer to the neonatal intensive care unit (NICU) is evaluated if necessary.

  5. Step 5

    Hospital stay

    The duration of the hospital stay for both the mother and the newborn is recorded. This includes the length of stay after birth or delivery.

Who can join the trial?

4 criteria

  • The study is for pregnant women.
  • Participants must be between 35 and 38 weeks of pregnancy.
  • Participants must have a test showing they carry Group G or C Streptococcus in their vaginal-rectal area. This test is usually done to check for another type of bacteria called GBS.
  • Only women can participate in this study.

Who cannot join the trial?

5 criteria

  • Women who are not pregnant cannot participate.
  • Women who do not have Group G or C Streptococcus bacteria in their vaginal-rectal area cannot participate. This is checked during a routine test for another type of bacteria called GBS.
  • Women who are not in the late stages of pregnancy cannot participate.
  • Men cannot participate in this study.
  • People who are not considered part of a vulnerable population cannot participate. A vulnerable population includes groups that might need special protection or care.
Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

Tell us about your condition – we search every trial in Europe and connect you with the right site.

We usually reply within a few days

Verified sites

All sites with verified contact details – recruitment status may not be available; ask directly

Trial locations

Where you can join this trial

Countries are shaded by recruitment status. Click a recruiting country to ask about joining there.

Recruiting
Not finding your country?

Not sure what to do next?

Joining a clinical trial can seem overwhelming. We guide you step by step, so you know exactly what to expect and how we support you through the process.

See the full process and FAQ

Investigated drugs

Antibiotic Prophylaxis is used in this trial to prevent infections caused by Group G/C Streptococcus bacteria during labor and after childbirth. The antibiotics are given to the mother during labor to reduce the risk of infection for both the mother and the newborn. This approach aims to protect against potential complications that can arise from these bacterial infections.

What is already known about the treatment

Antibiotic Prophylaxis – This medication is administered intravenously during labor to pregnant women who carry Group G or C Streptococcus in their vaginal-rectal flora. It is currently being studied in clinical trials to assess its effectiveness in preventing infections caused by these bacteria in both mothers and newborns during and after childbirth. The main therapeutic indication is to prevent Group G/C Streptococcus infections. The mechanism of action involves inhibiting bacterial cell wall synthesis, leading to the destruction of the bacteria. It is classified as an antibiotic, specifically targeting bacterial infections.

Investigated diseases

  • Group G Streptococcus Infection

    This infection is caused by Group G Streptococcus bacteria, which can be part of the normal flora in the human body but may lead to infections under certain conditions. In pregnant women, these bacteria can be found in the vaginal-rectal area and may pose a risk during childbirth. The infection can progress to cause postpartum complications in the mother, such as fever and inflammation, requiring medical attention. It can also affect the newborn, potentially leading to serious health issues if not managed properly. The bacteria can spread through direct contact during delivery, making it important to monitor and manage the condition to prevent transmission.

  • Group C Streptococcus Infection

    This infection is caused by Group C Streptococcus bacteria, which are similar to Group G in that they can be part of the normal flora but may cause disease under certain circumstances. In pregnant women, these bacteria can be present in the vaginal-rectal area and may lead to complications during and after childbirth. The infection can result in postpartum issues for the mother, such as fever and inflammation, which may require antibiotic treatment. It can also pose a risk to the newborn, potentially leading to infections if not properly addressed. The bacteria can be transmitted during delivery, necessitating careful monitoring and management to prevent complications.

Trial detailsLast updated 2 Oct 2026
Age18+ yearsPhasePhase IIITrial ID2024-519263-18-00Estimated enrolment696 patientsSponsorUniversity Of Oulu

sourced from the EU Clinical Trials Register and site verification

Want to learn more about this trial or check if you can participate?

Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

Tell us about your condition – we search every trial in Europe and connect you with the right site.

Legal notice · Published by CTIN POLAND sp. z o.o., ul. rtm. Witolda Pileckiego 67/109, 02-781 Warsaw, Poland · KRS 0001111334 · REGON 528919042 · NIP 9512598637

© 2026 Clinical Trials EU – European Clinical Trials Information Network

GDPR compliance, ISO 9001 and ISO 27001 certified (LL-C Certification)

On this site, “treatment” means an investigational medicine being studied in a clinical trial. Its safety and efficacy for the use being studied have not yet been confirmed, some participants may receive a placebo or a comparator medicine, and taking part does not guarantee any health benefit. The decision to take part is made by the doctor at the research site. This site is for information only and does not replace medical advice.

This service is not affiliated with the European Commission, the EMA, or the official CTIS system. Most information comes from publicly available international clinical-trial registries, supplemented by data from academic sites, national regulators and commercial sponsors. On this site, “treatment” and “therapy” mean a medicine being tested in a clinical trial. Its safety and effectiveness in the use being studied are not yet confirmed, some participants may receive a placebo or a comparator, and taking part does not guarantee a health benefit. The doctor at the research site decides who can take part. This site provides information, not medical advice. Certain content and visual elements on this website have been generated or enhanced using artificial intelligence (AI).