# Predictive Efficacy of Fecal Calprotectin Assay by Magnetic Particle Chemiluminescence for Mucosal Healing in Moderate-to-Severe Ulcerative Colitis Patients Undergoing Initial Biologic Therapy（PRECAL）

> **NCT07721441** · — · ENROLLING_BY_INVITATION · sponsor: **Tang-Du Hospital** · enrollment: 200 (estimated)

## Conditions studied

- Ulcerative Colitis (UC)

## Interventions

- **DIAGNOSTIC_TEST:** fecal calprotectin test

## Key facts

- **NCT ID:** NCT07721441
- **Lead sponsor:** Tang-Du Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** ENROLLING_BY_INVITATION
- **Start date:** 2026-06-18
- **Primary completion:** 2027-06-30
- **Final completion:** 2027-10-30
- **Target enrollment:** 200 (ESTIMATED)
- **Last updated:** 2026-07-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07721441

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07721441, "Predictive Efficacy of Fecal Calprotectin Assay by Magnetic Particle Chemiluminescence for Mucosal Healing in Moderate-to-Severe Ulcerative Colitis Patients Undergoing Initial Biologic Therapy（PRECAL）". Retrieved via MORVS 2026-10-20 from https://api.morvs.ai/clinical/NCT07721441. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*