About this trial
This study aims to design, develop and optimise a non-invasive, saliva sample-based point-of-care lateral flow test for use in low and middle income settings that can return a qualitative result on whether an individual has or has not immunity to tetanus within 10-15mins. If successful, this approach would not require blood sampling or laboratory facilities, empower personalised decision making on vaccine needs and support the development of population level data-driven public health policies.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Able and willing to provide informed consent to take part in the study; either directly or from a parent/guardian, where appropriate
[Group A] Aged 5-10 years inclusive, and determined as healthy by a member of the study team
[Group B] Aged 18-25yrs inclusive, and determined as healthy by a member of the study team
[Group C] Currently pregnant at any stage of pregnancy, prior to receipt of a tetanus booster vaccine in pregnancy, and determined as healthy by a member of the study team and safe to provide a blood sample
Disqualifiers
Participants or parents/guardians unwilling or unable to provide informed consent to take part
Unwilling or unable to comply with study procedures
Have a bleeding disorder deemed significant by study doctor
[Groups A, B and C only] Any health condition which, in the opinion of a study physician which could
Trial design
Single group
Treatments tested in this trial
Point of care, saliva-based lateral flow test
Diagnostic testMeasurement of anti-tetanus toxoid antibody concentration in saliva
Blood based immunoassay
Diagnostic testMeasurement of anti-tetanus toxoid antibody concentration in blood
Treatment groups
Trial outcomes
Primary outcomes
The clinical diagnostic performance of the saliva-based lateral flow test in determining immune status as compared to bead-based multiplexed assay on serum.
Immune status according to the saliva-based lateral flow test. Any pigment on the test line will be interpreted as immune.
The clinical diagnostic performance of the saliva-based lateral flow test in determining immune status as compared to bead-based multiplexed assay on serum.
Immune status as measured on serum by bead-based multiplex assay. Antibody titres at or above the WHO antibody immune correlate for protection of 0.1 IU/mL will be classed as immune.
Secondary outcomes
Perspectives of healthcare workers and the public
Perceptions and acceptability of this approach from healthcare workers and members of the public around using a novel salivary point-of-care lateral flow test for tetanus and vaccination decisions. This will be determined by thematic analysis of transcripts from focus groups of 5-15 people who have either been a participant in the study or helped with delivery of the study.
Serum anti-tetanus toxoid antibody concentration
Serum anti-tetanus toxoid antibody concentration as measured by bead-based multiplex assay.
Serum antibody titres to other EPI vaccine antigens
Serum antibody titres to diptheria, haemophilus influenzae, hepatitis B and measles as measured by multiplex assay or enzyme-linked immunosorbent assay.
Vaccination history
Vaccination history either by electronic healthcare records, vaccination card or maternal recall.
Sponsors and contacts
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University of Birmingham
Lead sponsor
Rwanda Biomedical Centre
Collaborator
Center for Family Health Research/Projet San Francisco
Collaborator
This trial is not recruiting at the moment. You can still explore other options: