Mortality Reduction After Oral Azithromycin: Mortality Study
MORDORIMort
Evaluating Impact of Azithromycin Mass Drug Administrations on All-cause Mortality and Antibiotic Resistance: Mortality Trial
1 other identifier
interventional
190,238
5 countries
6
Brief Summary
Our long-term goal is to more precisely define the role of mass azithromycin treatments as an intervention for reducing childhood mortality. We propose a single multi-site (multi-country), cluster-randomized trial comparing communities randomized to oral azithromycin with those randomized to placebo. We hypothesize that mass azithromycin treatments will reduce childhood mortality.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Dec 2014
Longer than P75 for phase_4
6 active sites
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
January 24, 2014
CompletedFirst Posted
Study publicly available on registry
January 29, 2014
CompletedStudy Start
First participant enrolled
December 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2018
CompletedResults Posted
Study results publicly available
January 3, 2020
CompletedNovember 8, 2022
October 1, 2022
3.8 years
January 24, 2014
August 29, 2019
October 11, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
All-cause Mortality Rate in Children Aged 1-60 Months
This is a single multi-site trial, with each country as a secondary analysis. Also, an interim analysis of efficacy and futility will be conducted according to a pre-specified plan in the Statistical Analysis Plan.
24 Months
All-cause Mortality Rate in Children Aged 1-60 Months
This was a pre-specified contingency study in Niger only in which all communities were treated with mass azithromycin during the third year of the study following the primary 24-month endpoint.
36 months
Secondary Outcomes (5)
Cause-specific Mortality Rate in Children Aged 1-60 Months, as Assessed From Verbal Autopsy (Niger Only)
24 Months
Cost-effectiveness of Mass Azithromycin Administration, Per Averted Childhood Death
24 months
All-cause and Cause-specific Health Clinic Visits in 1-60 Month-old Children
24 months
Cause-specific Mortality Rate in Children Aged 1-60 Months, as Assessed From Verbal Autopsy (Tanzania Only)
24 Months
Cause-specific Mortality Rate in Children Aged 1-60 Months, as Assessed From Verbal Autopsy (Malawi Only)
24 Months
Study Arms (2)
Biannual mass oral azithromycin
ACTIVE COMPARATORComparison of childhood mortality in communities randomized to azithromycin versus communities randomized to placebo. Children aged 1 month to 60 months per community will be offered weight or height-based, directly observed, oral azithromycin suspension every 6 months for 2 years. In Niger during year 3, all communities will be offered azithroymcin.
Biannual mass oral placebo
PLACEBO COMPARATORComparison of childhood mortality in communities randomized to azithromycin versus communities randomized to placebo. Children aged 1 month to 60 months per community will be offered weight or height-based, directly observed, oral placebo every 6 months for 2 years In Niger during year 3, all communities will be offered azithroymcin.
Interventions
Children aged 1 month to 60 months per community will be offered weight or height-based, directly observed, oral azithromycin suspension every 6 months for 2 years. In Niger during year 3, all communities will be offered azithroymcin.
Children aged 1 month to 60 months per community will be offered weight or height-based, directly observed, oral placebo every 6 months for 2 years. In Niger during year 3, all communities will be offered azithroymcin.
Eligibility Criteria
You may qualify if:
- Communities
- The community location in target district.
- The community leader consents to participation in the trial
- The community's estimated population is between 200-2,000 people.
- The community is not in an urban area.
- Individuals - All children aged 1-60 months (up to but not including the 5th birthday), as assessed via biannual census.
You may not qualify if:
- Individuals
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of California, San Franciscolead
- Bill and Melinda Gates Foundationcollaborator
- Johns Hopkins Universitycollaborator
- London School of Hygiene and Tropical Medicinecollaborator
Study Sites (6)
UCSF Proctor Foundation
San Francisco, California, 94143, United States
Johns Hopkins University
Baltimore, Maryland, 21205, United States
College of Medicine at the University of Malawi, Blantyre
Blantyre, Malawi
The Carter Center, Niger
Niamey, Niger
Kongwa Trachoma Project
Kongwa, Tanzania
London School of Hygiene & Tropical Medicine
London, United Kingdom
Related Publications (16)
Hinterwirth A, Chen C, Yan D, Zhong L, Zhou Z, Liu Y, Keenan J, O'Brien KS, Lebas E, Porco TC, Lietman TM, Doan T. Co-selection of genetic antibiotic resistance in Streptococcus pneumoniae after repeated azithromycin mass drug administrations in Niger. Antimicrob Agents Chemother. 2025 Dec 23:e0156225. doi: 10.1128/aac.01562-25. Online ahead of print.
PMID: 41432154DERIVEDPeterson B, Arzika AM, Amza A, Maliki R, Karamba AM, Moussa M, Kemago M, Liu Z, Houpt E, Liu J, Pholwat S, Doan T, Porco TC, Keenan JD, Lietman TM, O'Brien KS. Assessment of Spillover of Antimicrobial Resistance to Untreated Children 7-12 Years Old After Mass Drug Administration of Azithromycin for Child Survival in Niger: A Secondary Analysis of the MORDOR Cluster-Randomized Trial. Clin Infect Dis. 2024 Nov 22;79(5):1136-1143. doi: 10.1093/cid/ciae267.
PMID: 38739754DERIVEDArzika AM, Abdou A, Maliki R, Beido N, Kadri B, Harouna AN, Galo AN, Alio MK, Lebas E, Oldenburg CE, O'Brien KS, Chen C, Zhong L, Zhou Z, Yan D, Hinterwirth A, Keenan JD, Porco TC, Lietman TM, Doan T; MORDOR Study Group. Prolonged mass azithromycin distributions and macrolide resistance determinants among preschool children in Niger: A sub-study of a cluster-randomized trial (MORDOR). PLoS Med. 2024 May 6;21(5):e1004386. doi: 10.1371/journal.pmed.1004386. eCollection 2024 May.
PMID: 38709718DERIVEDChao DL, Arzika AM, Abdou A, Maliki R, Karamba A, Galo N, Beidi D, Harouna N, Abarchi M, Root E, Mishra A, Lebas E, Arnold BF, Oldenburg CE, Keenan JD, Lietman TM, O'Brien KS. Distance to Health Centers and Effectiveness of Azithromycin Mass Administration for Children in Niger: A Secondary Analysis of the MORDOR Cluster Randomized Trial. JAMA Netw Open. 2023 Dec 1;6(12):e2346840. doi: 10.1001/jamanetworkopen.2023.46840.
PMID: 38100110DERIVEDPickering H, Hart JD, Burr S, Stabler R, Maleta K, Kalua K, Bailey RL, Holland MJ. Impact of azithromycin mass drug administration on the antibiotic-resistant gut microbiome in children: a randomized, controlled trial. Gut Pathog. 2022 Jan 6;14(1):5. doi: 10.1186/s13099-021-00478-6.
PMID: 34991704DERIVEDArzika AM, Maliki R, Abdou A, Mankara AK, Harouna AN, Cook C, Hinterwirth A, Worden L, Zhong L, Chen C, Ruder K, Zhou Z, Lebas E, O'Brien KS, Oldenburg CE, Le V, Arnold BF, Porco TC, Keenan JD, Lietman TM, Doan T. Gut Resistome of Preschool Children After Prolonged Mass Azithromycin Distribution: A Cluster-randomized Trial. Clin Infect Dis. 2021 Oct 5;73(7):1292-1295. doi: 10.1093/cid/ciab485.
PMID: 34037753DERIVEDDoan T, Worden L, Hinterwirth A, Arzika AM, Maliki R, Abdou A, Zhong L, Chen C, Cook C, Lebas E, O'Brien KS, Oldenburg CE, Chow ED, Porco TC, Lipsitch M, Keenan JD, Lietman TM. Macrolide and Nonmacrolide Resistance with Mass Azithromycin Distribution. N Engl J Med. 2020 Nov 12;383(20):1941-1950. doi: 10.1056/NEJMoa2002606.
PMID: 33176084DERIVEDO'Brien KS, Arzika AM, Maliki R, Manzo F, Mamkara AK, Lebas E, Cook C, Bailey RL, West SK, Oldenburg CE, Porco TC, Arnold B, Keenan JD, Lietman TM; MORDOR Study Group. Biannual azithromycin distribution and child mortality among malnourished children: A subgroup analysis of the MORDOR cluster-randomized trial in Niger. PLoS Med. 2020 Sep 15;17(9):e1003285. doi: 10.1371/journal.pmed.1003285. eCollection 2020 Sep.
PMID: 32931496DERIVEDDoan T, Hinterwirth A, Arzika AM, Worden L, Chen C, Zhong L, Oldenburg CE, Keenan JD, Lietman TM. Reduction of Coronavirus Burden With Mass Azithromycin Distribution. Clin Infect Dis. 2020 Nov 19;71(16):2282-2284. doi: 10.1093/cid/ciaa606.
PMID: 32426812DERIVEDKeenan JD, Arzika AM, Maliki R, Elh Adamou S, Ibrahim F, Kiemago M, Galo NF, Lebas E, Cook C, Vanderschelden B, Bailey RL, West SK, Porco TC, Lietman TM; MORDOR-Niger Study Group. Cause-specific mortality of children younger than 5 years in communities receiving biannual mass azithromycin treatment in Niger: verbal autopsy results from a cluster-randomised controlled trial. Lancet Glob Health. 2020 Feb;8(2):e288-e295. doi: 10.1016/S2214-109X(19)30540-6.
PMID: 31981558DERIVEDBloch EM, Munoz B, Mrango Z, Weaver J, Mboera LEG, Lietman TM, Sullivan DJ Jr, West SK. The impact on malaria of biannual treatment with azithromycin in children age less than 5 years: a prospective study. Malar J. 2019 Aug 23;18(1):284. doi: 10.1186/s12936-019-2914-8.
PMID: 31443654DERIVEDDoan T, Arzika AM, Hinterwirth A, Maliki R, Zhong L, Cummings S, Sarkar S, Chen C, Porco TC, Keenan JD, Lietman TM; MORDOR Study Group. Macrolide Resistance in MORDOR I - A Cluster-Randomized Trial in Niger. N Engl J Med. 2019 Jun 6;380(23):2271-2273. doi: 10.1056/NEJMc1901535. No abstract available.
PMID: 31167060DERIVEDKeenan JD, Arzika AM, Maliki R, Boubacar N, Elh Adamou S, Moussa Ali M, Cook C, Lebas E, Lin Y, Ray KJ, O'Brien KS, Doan T, Oldenburg CE, Callahan EK, Emerson PM, Porco TC, Lietman TM. Longer-Term Assessment of Azithromycin for Reducing Childhood Mortality in Africa. N Engl J Med. 2019 Jun 6;380(23):2207-2214. doi: 10.1056/NEJMoa1817213.
PMID: 31167050DERIVEDPorco TC, Hart J, Arzika AM, Weaver J, Kalua K, Mrango Z, Cotter SY, Stoller NE, O'Brien KS, Fry DM, Vanderschelden B, Oldenburg CE, West SK, Bailey RL, Keenan JD, Lietman TM; Macrolides Oraux pour Reduire les Deces avec un Oeil sur la Resistance (MORDOR) Study Group. Mass Oral Azithromycin for Childhood Mortality: Timing of Death After Distribution in the MORDOR Trial. Clin Infect Dis. 2019 May 30;68(12):2114-2116. doi: 10.1093/cid/ciy973.
PMID: 30561577DERIVEDKeenan 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: 29694816DERIVEDPorco TC, Stoller NE, Keenan JD, Bailey RL, Lietman TM. Public key cryptography for quality assurance in randomization for clinical trials. Contemp Clin Trials. 2015 May;42:167-8. doi: 10.1016/j.cct.2015.03.016. Epub 2015 Apr 7. No abstract available.
PMID: 25858004DERIVED
MeSH Terms
Conditions
Interventions
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Ying Lin
- Organization
- UCSF F.I. Proctor Foundation
Study Officials
- PRINCIPAL INVESTIGATOR
Tom M Lietman, MD
University of California, San Francisco
- STUDY DIRECTOR
Elodie J Lebas, RN
University of California, San Francisco
Publication Agreements
- PI is Sponsor Employee
- Yes
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 24, 2014
First Posted
January 29, 2014
Study Start
December 1, 2014
Primary Completion
September 1, 2018
Study Completion
September 1, 2018
Last Updated
November 8, 2022
Results First Posted
January 3, 2020
Record last verified: 2022-10
Data Sharing
- IPD Sharing
- Will not share