Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 6 Months to 59 Months

Azithromycin for treating non-bloody Shigella watery diarrhea in children

Official title: The Impact of Shigellosis and Recommended Treatment in Children

Run by Johns Hopkins Bloomberg School of Public Health · NCT07433426 · Data updated 2026-11-12

It will test whether giving azithromycin to children 6–59 months with Shigella-positive watery (non-bloody) diarrhea shortens the illness, clears the bacteria faster, and improves growth.

More Diarrhea Infectious trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages6 Months to 59 Months
SexAll
Enrollment700 (estimated)
SponsorJohns Hopkins Bloomberg School of Public Health
Academic / other
Locations4 sites (Chāndpur and 3 other locations)
StatusRecruiting
StartedMarch 18, 2026
Main results expectedAugust 2029
Study endsAugust 2030
Registry record updatedMarch 30, 2026
Trial IDNCT07433426 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Children aged 6–59 months who present with watery (non-bloody) diarrhea, test positive for Shigella by RLDT, live within the study catchment area, and can be followed for three months are the ideal candidates.

Probably not a fit

Children with visible blood in stool, severe acute malnutrition, recent antibiotics for shigellosis, major congenital heart or gastrointestinal abnormalities, or those outside the 6–59 month age range are unlikely to be eligible or to benefit from this intervention.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind, placebo-controlled phase 2b study enrolling children aged 6–59 months with Shigella-positive watery diarrhea at hospitals in Bangladesh and Zambia. Participants are randomized to receive azithromycin or a matched placebo alongside standard rehydration and zinc, and are followed with household visits for three months. Primary outcomes include duration of diarrhea, time to microbiological cure (stool shedding of Shigella), and growth measures such as weight-for-age. Enrollment uses point-of-care RLDT testing and excludes children with bloody stools, recent relevant antibiotic use, or severe acute malnutrition.

Why it matters

Potential benefit: If successful, treating non-dysentery Shigella with azithromycin could shorten diarrheal episodes, reduce bacterial shedding, and improve weight gain and survival in vulnerable young children.

How similar studies have gone: Randomized evidence is limited—WHO currently recommends antibiotics only for bloody diarrhea, so treating non-dysentery Shigella is a relatively untested approach with uncertain prior success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients \>6 and ≤59 months of age seeking care in the study hospitals
* Patients residing within the study catchment area
* Present with watery diarrhea and positive for Shigella by RLDT
* Willing to be available for sample and data collection during the follow up visits

Exclusion Criteria:

* Inability or unwillingness of a participant's parent/guardian to give written informed consent or comply with study protocol
* Diarrhea started more than 96 hours before enrollment
* Antibiotics related to shigellosis treatment (including the investigational drug azithromycin) taken in the past 5 days
* More than 2 doses of antidiarrheal drugs taken in the past 24 hours
* History of allergy to Azithromycin
* Presence of visible blood in stool
* Children with severe acute malnutrition (below -3z scores of the median WHO growth standards).
* History of congenital heart diseases, known gastrointestinal abnormalities, including short bowel syndrome, chronic (inflammatory or irritable) bowel disease, inherited or acquired immune system deficiency rendering the patient immunocompromised, including chronic/long-term steroid treatment or other immunosuppressive treatment
* Fever over 39°C (102°F) with other complications that require antibiotic treatment
* Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study

Where it's running

  • icddr,b Hospital
    Dhaka, Bangladesh
    Recruiting
  • icddr,b Matlab Hospital
    Chāndpur, Bangladesh
    Not yet recruiting
  • Matero Level 1 Hospital
    Lusaka, Zambia
    Not yet recruiting
  • Arthur Davidson Children's Hospital
    Ndola, Zambia
    Not yet recruiting

Study contacts

  • Principal investigator: Subhra Chakraborty, PhD, MPH, MSc — Johns Hopkins Bloomberg School of Public Health
  • Study coordinator: Subhra Chakraborty, PhD, MPH, MSc
  • Email: schakr11@jhu.edu
  • Phone: 410-502-3154

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.