# Inflammatory Challenge and Fear

> **NCT06630884** · PHASE1 · RECRUITING · sponsor: **University of California, San Francisco** · enrollment: 288 (estimated)

## Conditions studied

- Posttraumatic Stress Disorder (PTSD)

## Interventions

- **BIOLOGICAL:** Typhoid VI Polysaccharide Vaccine Injectable Solution
- **OTHER:** Saline Placebo (0.5mL injection)

## Key facts

- **NCT ID:** NCT06630884
- **Lead sponsor:** University of California, San Francisco
- **Sponsor class:** OTHER
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2025-03-28
- **Primary completion:** 2028-11
- **Final completion:** 2028-11
- **Target enrollment:** 288 (ESTIMATED)
- **Last updated:** 2025-12-15

## Collaborators

- [object Object]
- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06630884

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06630884, "Inflammatory Challenge and Fear". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT06630884. Licensed CC0.

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