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NCT04945681: EEPICC

Evaluating the Effectiveness of a Pneumococcal Immunisation Campaign in a Camp for Internally Displaced People

Active, enrolled Phase 4 Last updated 4 June 2025
What this trial tests

Phase 4 trial testing Pneumococcal conjugate vaccine in Pneumococcal Infections in 2,882 participants. Participants enrolled and being followed up; not accepting new ones.

Timeline
27 November 2022
Primary endpoint
18 January 2025
28 February 2026

Quick facts

Lead sponsorLondon School of Hygiene and Tropical Medicine
PhasePhase 4
StatusActive, enrolled
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposeprevention
Enrollment2,882
Start date27 November 2022
Primary completion18 January 2025
Estimated completion28 February 2026
Sites1 location across Somalia

Drugs / interventions tested

Conditions studied

Sponsor

London School of Hygiene and Tropical Medicine

Who can join

Adults 6 Weeks to 4, any sex, with Pneumococcal Infections. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Pneumococcal conjugate vaccine (PCV) is used routinely worldwide as part of infant immunisations to prevent acquisition of S. pneumoniae, the aetiologic agent responsible for a large proportion of early childhood pneumonia and invasive disease. However, PCV has seen minimal uptake in populations affected by forced displacement and humanitarian crises, where the burden of pneumococcal disease is plausibly elevated. This study seeks to generate evidence on appropriate vaccination strategies for crisis-affected populations. The investigators plan to exhaustively vaccinate children aged between six months and four years in a camp for displaced persons outside Hargeisa, the capital of Somaliland. The study will deliver PCV in a campaign modality, so as to achieve both short- and long-term herd immunity effects that, the investigators hypothesise, will reduce population-wide nasopharyngeal S. pneumoniae transmission and thereby protect young children from pneumococcal disease. The study will adopt a quasi-experimental design, with baseline and post-intervention surveys to evaluate changes in pneumococcal carriage, complemented by safety assessment in children aged over 2 years, who fall outside of the WHO prequalification age range for the vaccine that will be used in this study (i.e. PNEUMOSIL) and for whom PCV safety data are scarce. In addition, we the study will also collect longitudinal data on incidence of pneumonia and antibiotic prescriptions in the camp.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

  1. Safety and coverage of Pneumosil pneumococcal polysaccharide conjugate vaccine (10-valent PCV) in a camp for internally displaced persons in Somaliland.
    McGowan CR, van Zandvoort K, Ibrahim SA, Hassan AI, et al · · 2026 · PMID 41265006 · DOI 10.1016/j.vaccine.2025.127991

Verify or expand the search:

Other trials of Pneumococcal conjugate vaccine

Trials testing the same drug.

Other recruiting trials for Pneumococcal Infections

Currently open trials in the same condition.

Other London School of Hygiene and Tropical Medicine trials

Trials by the same sponsor.

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