Inflammatory Challenge and Fear

Based on the public registry summary, this study is trying to understand: The goal of this study is to learn if short-term changes in the immune system alter how we process information and experience fear. The main questions it aims to answer are: Do people who receive typhoid vaccine respond differently than those who receive a placebo saline. The study team can confirm the exact objective and what it means for you.

This appears to be a biological / biomarker / imaging study involving Typhoid VI Polysaccharide Vaccine Injectable Solution, Saline Placebo (0.5mL injection). The listed phase is PHASE1. Ask the study team what that means in practice for safety, monitoring, and criteria.

This study may concern people with ptsd; age range: From 18 Years to 60 Years. The criteria appear strict, but you should not assume you are eligible. The study team must confirm diagnosis, age, exclusions, available locations, and next steps.

You may need to provide biological samples, complete lab tests, or take part in imaging or measurement procedures. The listed study locations suggest that at least part of participation may involve a physical site. Ask whether some steps can be done remotely.

If the study involves samples, imaging, or biomarkers, ask what is collected, how it is stored, who can access results, whether there may be discomfort, and whether results are shared with you. For any mental health study, also ask who to contact if you feel worse, whether participation may affect current treatment, whether you can stop, and who confirms eligibility.

The listed study locations suggest that at least part of participation may involve a physical site. Ask which sites are open, how many visits are expected, whether any steps can be done remotely, and whether travel costs or compensation are listed.

This study is sponsored by University of California, San Francisco, which appears to be a university. If available, it can be useful to check the sponsor website, collaborators, investigator affiliation, and the official registry before deciding. HopeStage does not judge the quality of a sponsor or researcher, but helps you identify what to verify.

The registry indicates that this study is currently recruiting. This does not mean you are eligible: the study team must confirm the criteria, available locations, and next steps. The registry lists an estimated enrollment of 288 participants.