NCT05288023

Brief Summary

The MORDOR trial found that biannual distribution of azithromycin to children 1-59 months old reduced child mortality. The World Health Organization (WHO) released conditional guidelines for this intervention, which include targeting azithromycin distributions to children 1-11 months of age in high mortality settings. The proposed trial aims to demonstrate and evaluate large-scale implementation of azithromycin to children aged 1-11 months old in the context of a programmatic setting while monitoring mortality and resistance antimicrobial resistance.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
169,707

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Dec 2022

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 23, 2022

Completed
23 days until next milestone

First Posted

Study publicly available on registry

March 18, 2022

Completed
9 months until next milestone

Study Start

First participant enrolled

December 1, 2022

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 15, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 15, 2024

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

March 28, 2025

Completed
Last Updated

March 28, 2025

Status Verified

March 1, 2025

Enrollment Period

1.1 years

First QC Date

February 23, 2022

Results QC Date

November 4, 2024

Last Update Submit

March 12, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Prevalence of Genetic Determinants of Macrolide Resistance From Population-based Samples

    Prevalence of genetic determinants of macrolide resistance including those determinants known to be found in Streptococcus pneumoniae, Streptococcus pyogenes, and Staphylococcus aureus in nasopharyngeal swabs in children aged 1-59 months from population-based samples after 1 year of distribution

    2 years

  • Load of Genetic Determinants of Macrolide Resistance From Population-based Samples

    Load of genetic determinants of resistance to macrolides including those determinants known to be found in Campylobacter spp, Salmonella spp, Shigella spp, and Escherichia coli from rectal swabs in children 1-59 months old from population-based samples, defined as read number per million base pairs, using DNA-seq (metagenomic deep sequencing).

    2 years

Secondary Outcomes (3)

  • Prevalence of Genetic Determinants of Macrolide Resistance From Clinic-based Samples

    2 years

  • Load of Genetic Determinants of Macrolide Resistance From Clinic-based Samples

    2 years

  • Number of All-cause Clinic Visits

    2 years

Study Arms (2)

Programmatic azithro 1-11

ACTIVE COMPARATOR

Biannual oral azithromycin administration to children aged 1-11 months distributed by community health workers

Drug: Azithromycin for Oral Suspension

no intervention

NO INTERVENTION

No additional intervention.

Interventions

Azithromycin will be administered as a single dose in oral suspension form for children (up to the maximum adult dose of 1g). Dosage will be calculated by age for children aged 1-5 months. For children 6-59 months of age, height-based dosing will be used via height-stick approximation as currently performed by Niger's trachoma program.

Also known as: Zithromax
Programmatic azithro 1-11

Eligibility Criteria

Age1 Month+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Location in Dosso, Tahoua, Maradi, Zinder, or Tillabéri regions
  • Distinguishable from neighboring communities
  • Verbal consent of community leader(s)

You may not qualify if:

  • Inaccessible or unsafe for study team
  • "Quartier" designation on national census
  • At the individual-level, eligibility includes:
  • Age 1-11 months
  • Primary residence in a study community
  • Verbal consent of caregiver/guardian for study participation
  • Known allergy to macrolides
  • Population-based sample collections
  • At the community-level, eligibility includes:
  • Location in study region
  • Distinguishable from neighboring communities
  • Verbal consent of community leader(s)
  • Inaccessible or unsafe for study team
  • Included in MORDOR trials
  • Not randomly selected
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Proctor foundation

San Francisco, California, 94143, United States

Location

Related Publications (2)

  • WHO Guideline on Mass Drug Administration of Azithromycin to Children under Five Years of Age to Promote Child Survival [Internet]. Geneva: World Health Organization; 2020. No abstract available. Available from http://www.ncbi.nlm.nih.gov/books/NBK561641/

    PMID: 32924384BACKGROUND
  • Keenan JD, Bailey RL, West SK, Arzika AM, Hart J, Weaver J, Kalua K, Mrango Z, Ray KJ, Cook C, Lebas E, O'Brien KS, Emerson PM, Porco TC, Lietman TM; MORDOR Study Group. Azithromycin to Reduce Childhood Mortality in Sub-Saharan Africa. N Engl J Med. 2018 Apr 26;378(17):1583-1592. doi: 10.1056/NEJMoa1715474.

    PMID: 29694816BACKGROUND

MeSH Terms

Interventions

AzithromycinSuspensions

Intervention Hierarchy (Ancestors)

ErythromycinMacrolidesPolyketidesLactonesOrganic ChemicalsColloidsComplex MixturesDosage FormsPharmaceutical Preparations

Results Point of Contact

Title
Kieran O'Brien
Organization
University of California San Francisco

Study Officials

  • Kieran O'Brien, PhD, MPH

    University of California, San Francisco

    PRINCIPAL INVESTIGATOR
  • Tom Lietman, MD

    University of California, San Francisco

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Participants, investigators, and program implementers will not be actively masked from the study arm allocation given that no placebo will be used. Outcome assessors and data analysts will be masked.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Cluster-randomized trial with response adaptive allocation
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 23, 2022

First Posted

March 18, 2022

Study Start

December 1, 2022

Primary Completion

January 15, 2024

Study Completion

January 15, 2024

Last Updated

March 28, 2025

Results First Posted

March 28, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

De-identified data underlying outcomes publications will be made publicly available.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Individual participant data will be made available after publication of the outcomes and will be made available indefinitely.
Access Criteria
Once made available, the data will be open access.

Locations