An Adaptive Multi-arm Trial to Improve Clinical Outcomes Among Children Recovering From Complicated SAM
Co-SAM
Co-SAM: An Adaptive Multi-arm Trial to Improve Clinical Outcomes Among Children Recovering From Complicated Severe Acute Malnutrition
1 other identifier
interventional
674
3 countries
9
Brief Summary
Malnutrition underlies 45% of child deaths, and has far-reaching educational, economic and health consequences. Severe acute malnutrition (SAM) affects 17 million children globally and is the most life-threatening form of malnutrition. Community-based management of acute malnutrition using ready-to-use therapeutic food (RUTF) has transformed outcomes for children with uncomplicated SAM, but those presenting with poor appetite or medical complications (categorised as having 'complicated' SAM) require hospitalisation. Data show that pneumonia, diarrhoea and malaria are leading causes of death in children with complicated SAM after discharge from hospital. High risk of infectious deaths suggests that sustained antimicrobial interventions may reduce mortality following discharge from hospital. Furthermore, children with complicated SAM respond less well to nutritional rehabilitation, and oftentimes are discharged to a home environment characterised by poverty and multiple caregiver vulnerabilities including depression, low decision making autonomy, lack of social support, gender-restricted family relations, and competing demands on scarce resources. Caregivers have to navigate diverse challenges that impede engagement with clinical care after discharge from hospital. The objective is to address the biological and social determinants of multimorbidity in children with complicated SAM by comparing an antimicrobial intervention with standard of care.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Jul 2024
9 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 14, 2023
CompletedFirst Posted
Study publicly available on registry
August 16, 2023
CompletedStudy Start
First participant enrolled
July 15, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 15, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 15, 2026
March 19, 2026
March 1, 2026
2.1 years
July 14, 2023
March 17, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Death or first hospitalisation or failed nutritional recovery within 24 weeks post-randomisation
a) All-cause mortality. b) Overnight admission to a health facility for any reason. This includes cases where there was a clinical plan to hospitalise the child, which was refused by the caregiver. c) Failed nutritional recovery is defined as either: i) Persistent WHZ\<-2 or MUAC\<12.5cm or bilateral pedal oedema at week 12; or ii) WHZ\<-2 or MUAC\<12.5cm or bilateral pedal oedema at any time between baseline and week 24 post-randomisation in a child who had previously recovered.
24 weeks post-randomisation
Secondary Outcomes (5)
Change in weight-for-height Z-score
24 weeks post-randomisation
Change in mid-upper arm circumference
24 weeks post-randomisation
Change in weight-for-age Z-score
24 weeks post-randomisation
Change in height-for-age Z-score
24 weeks post-randomisation
Number of participants with suspected or confirmed tuberculosis,pneumonia, diarrhoea or malaria
24 weeks post-randomisation
Other Outcomes (8)
Change in anthropometry: Weight-for-height Z score (WHZ)
4 weeks post-randomisation and 12 weeks post-randomisation
Change in anthropometry: Weight-for-age Z score (WAZ)
4 weeks post-randomisation and 12 weeks post-randomisation
Change in anthropometry: Height-for-age Z score (HAZ)
4 weeks post-randomisation and 12 weeks post-randomisation
- +5 more other outcomes
Study Arms (3)
Arm 1: Standard-of-care (control)
ACTIVE COMPARATORChildren in the control arm will receive Ready to Use Therapeutic Food (RUTF) for at least 2 weeks, plus all standard care. Children with HIV will receive long-term Cotrimoxazole prophylaxis and antiretroviral therapy, as per current guidelines.
Arm 2: Antimicrobial package
EXPERIMENTALChildren will receive a bundle of azithromycin (3 days every month), isoniazid (daily), rifampicin (daily) and pyridoxine (daily) for 12 weeks.
Arm 3: Psychosocial Support (PSS) Package
EXPERIMENTALDuring the Psychosocial Support intervention, caregiver-child pairs receive weekly intervention visits at weeks 1, 3, and 5. These visits are designed to deliver weekly problem-solving therapy and behavior-change modules for a total duration of 6 weeks. The content and focus of these psychosocial sessions aim to support the psychosocial well-being of the participants. Additionally, there are standard intervention visits for all arms at weeks 2, 4, 6, 8, and 12 post-randomization, which include other aspects of the intervention such as the resupply of Ready-to-Use Therapeutic Food (RUTF).
Interventions
Azithromycin is a macrolide antibiotic, and is approved for use in children by the FDA (ID: 3263750) and EMA (EMA/2872/2021).
Rifampicin is commonly used in the first-line management of paediatric tuberculosis, and is approved by the FDA (ID: 2862628) and the EMA (EMA/31710/2020).
Isoniazid is an antibiotic commonly used in the firstline treatment of tuberculosis, and as tuberculosis prophylaxis.
Pyridoxine is a form of vitamin B6 used to prevent peripheral neuropathy among children receiving isoniazid.
All children will receive care according to WHO guidelines, which includes standard RUTF and any other medications required.
The Friendship Bench was developed in Zimbabwe as a low-cost psychological intervention utilising problem-solving therapy (delivered by trained lay workers) and peer-to-peer support to address depression and other common mental disorders. There is a strong evidence-base for its use in urban LMIC settings. Peer support groups meet every 1-2 weeks and focus on communal problem solving, and establishing income-generation activities (such as making bags).
Care for Child Development is a UNICEF package that helps families build stronger relationships and solve problems in caring for their child at home, through play and communication activities to stimulate children, through a series of age-appropriate interactive modules delivered by a lay worker using 'flash' cards. It has been used in other African contexts and has good acceptability.
Educational and behaviour-change messages around better nutrition; play for children with SAM; stigma, HIV and gender-based violence; financial planning; causes of SAM; and health-seeking behaviours. These have been developed with caregivers affected by SAM in a previous study, through a series of co-design workshops, ensuring they are contextually relevant.
Eligibility Criteria
You may qualify if:
- Age 6-59 months, of either sex
- Hospitalised with complicated severe acute malnutrition, as per WHO definition
- Started transition to RUTF
- Caregiver willing and able to attend the study clinic for all visits
- Caregiver able and willing to give informed consent
You may not qualify if:
- Any acute or chronic condition which mean that receipt of one or more study interventions, or participation in the trial, would not be advisable.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Queen Mary University of Londonlead
- University of Oxfordcollaborator
- KEMRI-Wellcome Trust Collaborative Research Programcollaborator
- University of Washingtoncollaborator
- Wageningen Universitycollaborator
- Zvitambo Institute for Maternal & Child Healthcollaborator
- Tropical Gastroenterology & Nutrition Group (TROPGAN)collaborator
- University of Cambridgecollaborator
- Kenya Medical Research Institutecollaborator
- National Institute for Health Research, United Kingdomcollaborator
Study Sites (9)
Homa Bay
Homa Bay, Kenya
Mbagathi Hospital
Mbagathi, Kenya
Migori Referral Hospital
Migori, Kenya
Coast General
Mombasa, Kenya
Matero Hospital
Lusaka, Zambia
UTH - University Teaching Hospital
Lusaka, Zambia
Chitungwiza Central Hospital
Harare, Zimbabwe
Parirenyatwa Hospital
Harare, Zimbabwe
Sally Mugabe Hospital
Harare, Zimbabwe
Related Publications (1)
Bwakura-Dangarembizi M, Amadi B, Singa BO, Muyemayema S, Ngosa D, Mwalekwa L, Ngao N, Kazhila L, Mutasa B, Mpofu E, Mudawarima L, Gonzales GB, Mudzingwa S, Mutenda M, Keter LK, Mutasa K, Njunge JM, Jones H, Phiri TN, Mudibo E, Chulu N, Majo FD, Chasekwa B, Tembo A, Nyabinda C, Oduol C, Sauramba V, Tavengwa NV, Langhaug L, Cordani I, Smuk M, Jaki T, Ntozini R, Walson J, Tickell KD, Berkley J, Kelly P, Prendergast AJ; Co-SAM Trial Team. An adaptive multiarm randomised trial of biomedical and psychosocial interventions to improve convalescence following severe acute malnutrition in sub-Saharan Africa: Co-SAM trial protocol. BMJ Open. 2025 May 24;15(5):e093758. doi: 10.1136/bmjopen-2024-093758.
PMID: 40413053DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 14, 2023
First Posted
August 16, 2023
Study Start
July 15, 2024
Primary Completion (Estimated)
August 15, 2026
Study Completion (Estimated)
August 15, 2026
Last Updated
March 19, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- January 2028
- Access Criteria
- Via ClinEpiDB
Data will be shared at the end of the trial on ClinEpiDB.