Study of Clostridioides Difficile in Infants

NCT ID: NCT06788769

Last Updated: 2025-01-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-07-01

Study Completion Date

2026-12-30

Brief Summary

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Clostridioides difficile infection (CDI) poses an increasing threat to infant and young child health, with detection rates rising annually. This retrospective study aims to explore the epidemiological characteristics, clinical manifestations, and potential biomarkers of CDI in children aged 0-2 years by examining three cohorts: (1) infants diagnosed with CDI, (2) asymptomatic carriers of C. difficile, and (3) healthy controls. Fecal samples from each group will undergo metagenomic sequencing and metabolomic profiling, coupled with questionnaire-based surveys for risk factor assessment. The findings are anticipated to identify key high-risk factors, elucidate the pathogenic mechanisms underlying infant CDI, and support the development of early diagnostic tools and preventive strategies.

Detailed Description

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Conditions

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Clostridioides Difficile Infection

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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CDI Patients

This group includes infants aged 0-2 years who have been diagnosed with Clostridioides difficile infection (CDI). Diagnosis is based on clinical symptoms such as diarrhea, abdominal pain, or fever, along with positive laboratory confirmation (e.g., stool PCR or culture for C. difficile).

No interventions assigned to this group

Asymptomatic Clostridioides difficile Carriers

This group includes infants aged 0-2 years who are colonized with Clostridioides difficile but show no clinical symptoms of infection. Participants in this group tested positive for C. difficile in fecal samples collected during routine or study-related screening.

No interventions assigned to this group

Healthy Infants

This group includes infants aged 0-2 years who do not show any clinical symptoms of infection and have tested negative for Clostridioides difficile in fecal samples. Participants were recruited from general pediatric clinics or community health programs.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. Age Range: Infants aged 0 to 2 years (inclusive) at the time of sample collection or medical record documentation.
2. Data Availability: Complete medical records or available stool samples within the study's retrospective time frame.
3. Group-Specific Criteria:

CDI Patients: Documented diarrhea or related gastrointestinal symptoms, with laboratory-confirmed C. difficile by PCR or culture.

Asymptomatic Carriers: Positive C. difficile test (PCR or culture) in the absence of diarrhea or other clinical CDI symptoms.

Healthy Controls: Negative C. difficile test and no gastrointestinal symptoms indicative of CDI.
4. Consent/Authorization:Retrospective data (e.g., existing medical records or stored biosamples) may be included under a waiver of consent if approved by the institutional review board (IRB). However, any new information obtained directly from participants or their guardians (e.g., via questionnaires) requires explicit informed consent.

Exclusion Criteria

1. Incomplete Data: Infants whose medical records lack sufficient information to confirm their CDI status or those without adequate stool sample results.
2. Ambiguous Diagnosis: Patients presenting with other infectious diseases or conditions that could not rule out alternative diagnoses for diarrhea (e.g., confirmed concurrent viral or parasitic infections) without conclusive C. difficile testing.
3. Severe Comorbidities: Infants with life-threatening congenital conditions (e.g., severe immunodeficiency syndromes) if these conditions significantly alter the gut microbiota or confound CDI diagnosis.
Minimum Eligible Age

1 Day

Maximum Eligible Age

2 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Westlake University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hangzhou First People's Hospital

Hangzhou, Zhejiang, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Liang Tao, PHD

Role: CONTACT

86-19817412816

Liqian Wang

Role: CONTACT

86-18768156110

Facility Contacts

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Liqian Wang

Role: primary

86-18768156110

Other Identifiers

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20241202TL001

Identifier Type: -

Identifier Source: org_study_id

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