A Phase 4 interventional study of IXCHIQ and VIMKUNYA in Chikungunya Virus Infection, sponsored by Centre Hospitalier Universitaire de la Réunion. Recruiting at 2 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-28.
Sponsored by Centre Hospitalier Universitaire de la Réunion · Phase 4, Interventional, and Other
In the context of the ongoing chikungunya epidemic in Réunion Island and the anticipated epidemic in French Guiana, the investigators propose an ambispective study to evaluate the real-world effectiveness, safety, and immunogenicity of the recommended vaccines, IXCHIQ® and VIMKUNYA®, as defined by the French National Authority for Health (HAS).
88 studies on the registry are indexed under Chikungunya Fever; 21 are open to participants now.
This study's planned enrollment of 1,505 is above the median of 263 across 57 interventional studies indexed under Chikungunya Fever.
Browse Chikungunya Fever studies →Centre Hospitalier Universitaire de la Réunion is the lead sponsor of 141 studies on the registry; 37 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Retrospective study VIMKUNYA or IXCHIQ
Prospective study
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.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
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.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients who will be vaccinated with the IXCHIQ vaccine or the VIMKUNYA vaccine
Biological: IXCHIQ · Biological: VIMKUNYA
Patient who will not be vaccinated
Group of vaccinated arm will be with the IXCHIQ vaccine
Other group of vaccinated arm will be with the VIMKUNYA vaccine
To measure the vaccine effectiveness at 6 months
Vaccine effectiveness defined at 6 months as the difference in attack rate between unvaccinated and vaccinated participants divided by the attack rate in unvaccinated participants
Time frame: 6 months
Not enrolling at this site.
Started Apr 2025 (actual). Primary completion is estimated for Jun 2027, 26 months after the start.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Studies of the drug tested here: Chikungunya vaccine
Centre Hospitalier Universitaire de la Réunion →