Infantile ColicNCT07190859
Evaluating the Effect of Probiotic Limosilactobacillus Reuteri (L. Reuteri) on Crying and Fussing Time in Infants With Colic
A study testing L. reuteri in people with Infantile Colic, run by BioGaia AB at 4 sites in Bulgaria.
Trial summary
This is a double-blind, randomized, placebo-controlled, parallel-group study in infants with colic with the primary objective to evaluate crying and fussing time. Read more about this study
- Who is it for?
- Ages 3 to 12 weeks
- Conditions the study is for
- Infantile Colic
- What is being tested?
- L. reuteri
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 50 participants
- Where
- 4 sitesBulgaria
- Study dates
- 4 Aug 2025to 30 Oct 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 3 to 12 weeks
- All sexes
- No healthy volunteers
- Child
Who may be able to join
- Aged between 3-12 weeks at screening.
- Gestational age 37+0 weeks - 42+0 weeks at birth.
- Birth weight appropriate for gestational age (AGA - weight between 10th and 90th percentile) or Large for Gestational Age (LGA - weight above the 90th percentile) determined using WHO Weight-for Age percentile guides.
- Parents/caregivers/legal guardians are >18 years.
- Exclusively or predominantly breastfed infants (> 50 % breast fed).
- Willing to maintain current feeding patterns (not change formula/not change ratio of formula:breast milk etc.).
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- Readiness and the opportunity for parents/caregivers/legal guardians to fill out a study diary, questionnaires.
- Infantile colic diagnosed according to Rome IV criteria (face-to-face consult with a physician, parents/caregivers/legal guardians must report that their infant has cried or fussed for 3 or more hours per day, during 3 or more days in the preceding week). At Visit 2, this will be confirmed by Baby's Day Diary®, at least one 24-hour period should show 3 or more hours of crying/fussing time.
- Parents/caregivers/legal guardians with ability to understand and comply with the requirements of the study, as judged by the Investigator.
- Parents/caregivers/legal guardians willing and able to give informed consent for their and their infant's participation in the study.
- The mother of the infant must be willing to attend Visit 2 (Day 0), Visit 3 (Day 8), and Visit 4 (Day 22).
- Infant is considered healthy, in the opinion of the investigator following physical exam.
Who cannot join
- Infants with severe gastroesophageal reflux (throwing up or spitting up more than a teaspoon of milk > 8 times daily, projectile, bilious or bloody emesis).
- Infants with failure to thrive, intrauterine growth retardation, haematochezia (blood in the stools), diarrhoea (watery stools that takes the shape of a container > 12x in breastfed and >5 in partially breastfed infants daily), or fever (38.0 degrees), as reported by parents/caregivers/ legal guardians.
- Infants with congenital heart disease, immunodeficiency, asplenia, cancer, cystic fibrosis, and those with liver disease.
- Infants with reported exposure to probiotics in the 7 days prior to Screening Visit (V1) and throughout the study period.
- Infants with reported exposure to oral and/or systemic antibiotics in the 7 days prior to Screening Visit (V1) and throughout the study period.
- Infants with reported exposure to medications, therapies, or products with the aim to relieve infantile colic including proton pump inhibitors in the 7 days prior to Screening Visit (V1) and throughout the study period.
Trial locations and contacts
4 sites in 1 country.
Bulgaria4 sites
UMHAT Deva Maria
Burgas, 8127
Medical Centre Asklepiy OOD
Dupnitsa, 2600
AIPSMP
Stara Zagora, 6000
Ipsmp Eood
Stara Zagora, 6000
About this study
Official title: A Double-blind, Randomised, Placebo-controlled, Parallel-group Study Evaluating the Effect of Probiotic Limosilactobacillus Reuteri (L. Reuteri) on Crying and Fussing Time in Infants With Colic
This is a double-blind, randomized, placebo-controlled, parallel-group study in infants with colic with the primary objective to evaluate crying and fussing time.
- Conditions
- Infantile Colic
- Being tested
- L. reuteri, Placebo
- Medical subject headings
- Colic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
L. reuteriDietary supplement
Supplementation with drops containing L. reuteri once daily for 21 consecutive days
PlaceboDietary supplement
Supplementation with identical drops without L. reuteri once daily for 21 consecutive days
| Study group | Role | What they receive |
|---|---|---|
| L. reuteri | Experimental | Dietary supplement: L. reuteri Receives: Dietary Supplement: L. reuteri |
| Placebo | Placebo comparator | Placebo Receives: Dietary Supplement: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Crying and fussing time
Change in mean crying and fussing time as assessed by the Baby's Day Diary
Measured: From baseline to Day 7
Secondary outcomes (5)
Crying and fussing time
Change in mean crying and fussing time as assessed by the Baby's Day Diary
Measured: From baseline up to Day 21
Number of responders
Proportion of responders defined as reduction of daily average crying time with 50 % compared to baseline
Measured: From baseline up to Day 21
Family Quality of Life
Change in family QoL measured by the PedsQL Family Impact Module (Acute) - Total Score
This is a 36-item questionnaire, possible score 0-100, with higher score indicating a better outcome.
Measured: From baseline up to Day 21
Sleeping time
Change in mean sleeping time as assessed by Baby´s Day Diary
Measured: From baseline up to Day 21
Maternal depression
Change in maternal depression as assessed by the Edinburgh Postnatal Depression Scale Total Score
The score range is 0-30 with higher score indicating a worse outcome.
Measured: From baseline up to Day 21
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Sep 2025
- Study start4 Aug 2025
- Primary completion17 Oct 2027 (estimated)
- Study completion30 Oct 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Infantile ColicStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- BioGaia AB
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07190859
- Sponsor's protocol ID
- CSUB0218
- Status last verified
- Oct 2026
- First submitted
- 17 Sep 2025
- Last updated
- 15 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 15 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Double-blind, Randomised, Placebo-controlled, Parallel-group Study Evaluating the Effect of Probiotic Limosilactobacillus Reuteri (L. Reuteri) on Crying and Fussing Time in Infants With Colic
- ClinicalTrials.gov ID
- NCT07190859
- Acronym / sponsor ID
- CSUB0218
- Conditions
- Infantile Colic
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 50 participants (actual)
- Lead sponsor
- BioGaia ABIndustry (pharma, biotech, devices)
- Study start
- 4 Aug 2025 (actual)
- Primary completion
- 17 Oct 2027 (estimated)
- Study completion
- 30 Oct 2027 (estimated)
- First posted
- 24 Sep 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a double-blind, randomized, placebo-controlled, parallel-group study in infants with colic with the primary objective to evaluate crying and fussing time.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| L. reuteri | Experimental | Dietary Supplement: L. reuteriDietary supplement: L. reuteri |
| Placebo | Placebo comparator | Dietary Supplement: PlaceboPlacebo |
Who may qualify
- Ages
- 3 to 12 weeks
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child
Key inclusion criteria (12 listed)
- Aged between 3-12 weeks at screening.
- Gestational age 37+0 weeks - 42+0 weeks at birth.
- Birth weight appropriate for gestational age (AGA - weight between 10th and 90th percentile) or Large for Gestational Age (LGA - weight above the 90th percentile) determined using WHO Weight-for Age percentile guides.
- Parents/caregivers/legal guardians are >18 years.
- Exclusively or predominantly breastfed infants (> 50 % breast fed).
Key exclusion criteria (6 listed)
- Infants with severe gastroesophageal reflux (throwing up or spitting up more than a teaspoon of milk > 8 times daily, projectile, bilious or bloody emesis).
- Infants with failure to thrive, intrauterine growth retardation, haematochezia (blood in the stools), diarrhoea (watery stools that takes the shape of a container > 12x in breastfed and >5 in partially breastfed infants daily), or fever (38.0 degrees), as reported by parents/caregivers/ legal guardians.
- Infants with congenital heart disease, immunodeficiency, asplenia, cancer, cystic fibrosis, and those with liver disease.
- Infants with reported exposure to probiotics in the 7 days prior to Screening Visit (V1) and throughout the study period.
- Infants with reported exposure to oral and/or systemic antibiotics in the 7 days prior to Screening Visit (V1) and throughout the study period.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| L. reuteriSupplementation with drops containing L. reuteri once daily for 21 consecutive days | Dietary supplement | L. reuteri |
| PlaceboSupplementation with identical drops without L. reuteri once daily for 21 consecutive days | Dietary supplement | Placebo |
Primary outcome
Crying and fussing time
Time frame: From baseline to Day 7
Change in mean crying and fussing time as assessed by the Baby's Day Diary
5 secondary outcomes
Crying and fussing time
Time frame: From baseline up to Day 21
Number of responders
Time frame: From baseline up to Day 21
Family Quality of Life
Time frame: From baseline up to Day 21
Sleeping time
Time frame: From baseline up to Day 21
Maternal depression
Time frame: From baseline up to Day 21
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Oct 2026.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing L. reuteri in people with Infantile Colic, run by BioGaia AB at 4 sites in Bulgaria.
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 12 inclusion and 6 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: under way, not looking for participants, as of the sponsor's last update on 15 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in Bulgaria. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
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?
Crying and fussing time (time frame: From baseline to Day 7). 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 15 Oct 2026.