An observational study in Meningoccocal Disease, sponsored by Serum Institute of India Pvt. Ltd.. Recruiting at 2 sites in 2 countries. Open to participants aged 7 Years to 36 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-06-03.
Sponsored by Serum Institute of India Pvt. Ltd. · Observational
This study will measure immune persistence of the NmCV-5 more than 5 years after a single dose vaccination in participants 2-29 years of age in Mali and The Gambia.
This non-interventional long-term follow-up study will involve one telephonic contact in all 1800 former participants from study ACYWX-03 followed by one visit beyond five years after vaccination in a subset of 450 participants. This subset will be randomly selected to participate in a follow-on immune persistence evaluation. To document the duration of the immune response and any requirement of booster dose in the target population, this study is intended to explore antibody persistence.
Serum Institute of India Pvt. Ltd. is the lead sponsor of 26 studies on the registry; 6 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Participants from the previous study ACYWX-03 conducted at the Gambia and Mali
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Geometric mean titers (GMTs) measured by rSBA against serogroups A, C, Y, W and X
Time frame: five-six years after vaccination.
Percentage of participants with rSBA titers ≥ 8
Time frame: five-six years after vaccination.
Percentage of participants with rSBA titers ≥ 128
Time frame: five-six years after vaccination
Plan to share: No
No publications or documents are linked to this record.
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