The Effects of Iron Treatment on Malaria and Measles Vaccine Response in Kenyan Infants With Iron Deficiency

NCT ID: NCT06816524

Last Updated: 2025-12-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

324 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-05

Study Completion Date

2028-04-30

Brief Summary

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Malaria and iron deficiency cause a significant burden of disease in Africa. Iron deficiency (ID) might affect immune responses to vaccination.

In this double-blind randomized controlled trial, we aim to assess: (1) whether ID impairs R21/Matrix-M and measles (MR) vaccine response, (2) whether iron treatment at time of vaccination improves vaccine response.

Detailed Description

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Conditions

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Iron Deficiencies

Keywords

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Iron deficiency Vaccine immunogenicity Malaria Measles

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Iron treatment group

daily multivitamin + daily iron syrup from age 6 to 10 months

Group Type ACTIVE_COMPARATOR

Iron syrup

Intervention Type DIETARY_SUPPLEMENT

Iron syrup administered daily from 6 to 10 months of age.

Multivitamin syrup

Intervention Type DIETARY_SUPPLEMENT

Multivitamin syrup administered daily from 6 to 10 months of age.

R21-Matrix/M Vaccine (malaria vaccine)

Intervention Type BIOLOGICAL

R21-Matrix/M vaccine administered in 3 doses at 7, 8 and 9 months of age.

Measles-Rubella vaccine

Intervention Type BIOLOGICAL

Measles-Rubella vaccine administered at 9 months of age.

Control group

daily multivitamin syrup from age 6 to 10 months

Group Type OTHER

Multivitamin syrup

Intervention Type DIETARY_SUPPLEMENT

Multivitamin syrup administered daily from 6 to 10 months of age.

R21-Matrix/M Vaccine (malaria vaccine)

Intervention Type BIOLOGICAL

R21-Matrix/M vaccine administered in 3 doses at 7, 8 and 9 months of age.

Measles-Rubella vaccine

Intervention Type BIOLOGICAL

Measles-Rubella vaccine administered at 9 months of age.

Interventions

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Iron syrup

Iron syrup administered daily from 6 to 10 months of age.

Intervention Type DIETARY_SUPPLEMENT

Multivitamin syrup

Multivitamin syrup administered daily from 6 to 10 months of age.

Intervention Type DIETARY_SUPPLEMENT

R21-Matrix/M Vaccine (malaria vaccine)

R21-Matrix/M vaccine administered in 3 doses at 7, 8 and 9 months of age.

Intervention Type BIOLOGICAL

Measles-Rubella vaccine

Measles-Rubella vaccine administered at 9 months of age.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Subject's caregiver is willing and able to give informed consent
* Male or Female, 6 months (+/- 2 weeks) of age
* Mother at least ≥15 years of age
* Iron deficient (erythrocyte zinc protoporphyrin (ZnPP) \>61 μmol/mol heme)
* With or without anemia (anemia defined by Hb \<110 g/L)

Exclusion Criteria

* Severely anemic (Hb \<70 g/L)
* Malaria vaccination prior to enrollment
* Medical condition that precludes study involvement
* Iron supplementation 2 weeks before enrollment
* Acute or chronic infection (e.g. HIV)
* Wasted (length for height z score of ≥-2) or underweight (weight for age z score ≥-2).
Minimum Eligible Age

6 Months

Maximum Eligible Age

6 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jomo Kenyatta University of Agriculture and Technology

OTHER

Sponsor Role collaborator

University of Oxford - Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences

UNKNOWN

Sponsor Role collaborator

Faculty of Medical Sciences, Radboud University of Medical Center

UNKNOWN

Sponsor Role collaborator

National Institute for Public Health and the Environment (RIVM)

OTHER_GOV

Sponsor Role collaborator

Nicole Stoffel

OTHER

Sponsor Role lead

Responsible Party

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Nicole Stoffel

Prof.

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Nicole Stoffel, PhD

Role: PRINCIPAL_INVESTIGATOR

ETH Zurich

Central Contacts

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Nicole Stoffel, PhD

Role: CONTACT

Phone: 044 632 83 93

Email: [email protected]

Giulia Pironaci, MSc

Role: CONTACT

Phone: 0799343770

Email: [email protected]

Other Identifiers

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MEMA

Identifier Type: -

Identifier Source: org_study_id