Long-Term Protection of Vi Antibodies Induced by Bio TCV in Indonesian Population Compared to PQe… (NCT06921460) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Long-Term Protection of Vi Antibodies Induced by Bio TCV in Indonesian Population Compared to PQed TCV
Indonesia624 participantsStarted 2025-06-15
Plain-language summary
Typhoid fever is a serious systemic infection caused by the enteric pathogen Salmonella enterica serovar typhi. S typhi is spread by the fecal-oral route. Although largely an endemic disease, S. typhi has epidemic potential. This research aims to determine the long-term immune response after administration of one dose of Bio TCV and PQed TCV vaccines in the population in Indonesia. Research participants will be taken from research participants who complete the Bio TCV (Typhoid 0319) Phase III clinical trial research included in the Main Study Group I.
Who can participate
Age range
6 Months – 60 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Healthy
* Subject/Parents/legal guardian(s) have been informed properly regarding the study and signed the informed consent form/and informed assent form.
* Subject/parents/legal guardian(s) will commit to comply with the instructions of the investigator and the schedule of the trial.
Exclusion Criteria:
* History of uncontrolled coagulopathy or blood disorders contraindicating for phlebotomy.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
To evaluate antibody persistence 5 years after vaccination with one dose of Vi-DT vaccine (Bio TCV), compared to PQed TCV (Typbar)