Skip to content

A Participant- and Investigator-blind, Randomised, Placebo controlled Phase II Study to Evaluate Safety, Tolerability, and Mucosal Repair with AZD7798 in Patients with Active Ileal Crohn’s Disease and an Ileostomy (CALLISTO)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-514407-33-00
Acronym
D9690C00006
Enrollment
27
Registered
2024-11-04
Start date
2024-12-10
Completion date
Unknown
Last updated
2025-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crohn’s Disease and an Ileostomy

Brief summary

Safety and tolerability evaluations using AEs, clinical laboratory assessments, vital sign measures, and 12 lead ECGs.

Detailed description

Safety and tolerability evaluations using AEs, clinical laboratory assessments, vital sign measures, and 12 lead ECGs since week12 to week 52., a) Change from baseline in endoscopic score (SES CD using endoscopic assessment) at Week 12. b) Change from baseline in endoscopic score (MM SES-CD) at Week 12. c) Endoscopic response (≥ 50% decrease from baseline in SES-CD total score) at Week 12. d) Endoscopic remission (SES-CD total score < 4 and at least 2‑point reduction from baseline with no subscore > 1 in any individual variable) at Week 12., a) Serum AZD7798 concentration. b) Incidence and titre of ADA response

Interventions

DRUGAZD7798 Placebo: 0.9% saline solution for injection
DRUGcommercially available.

Sponsors

AstraZeneca AB
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Safety and tolerability evaluations using AEs, clinical laboratory assessments, vital sign measures, and 12 lead ECGs.

Secondary

MeasureTime frame
Safety and tolerability evaluations using AEs, clinical laboratory assessments, vital sign measures, and 12 lead ECGs since week12 to week 52., a) Change from baseline in endoscopic score (SES CD using endoscopic assessment) at Week 12. b) Change from baseline in endoscopic score (MM SES-CD) at Week 12. c) Endoscopic response (≥ 50% decrease from baseline in SES-CD total score) at Week 12. d) Endoscopic remission (SES-CD total score < 4 and at least 2‑point reduction from baseline with no subscore > 1 in any individual variable) at Week 12., a) Serum AZD7798 concentration. b) Incidence and titre of ADA response

Countries

Belgium, Italy, Netherlands, Poland, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026