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The Effect of Appendectomy in Ulcerative Colitis patients with active disease: COlonic Salvage by Therapeutic Appendicectomy (COSTA study)

The Effect of Appendectomy in Ulcerative Colitis patients with active disease: COlonic Salvage by Therapeutic Appendicectomy (COSTA study) - COSTA study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON52601
Enrollment
134
Registered
2018-08-21
Start date
2018-08-24
Completion date
Unknown
Last updated
2026-07-13

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

Conditions

inflammatory bowel disease Ulcerative colitis

Interventions

Laparoscopic appendectomy in day-care setting

Sponsors

Academisch Medisch Centrum
Lead Sponsor

Eligibility

Age
16 Years to 64 Years

Inclusion criteria

Inclusion criteria: - Age 16 years and older - Established diagnosis of ulcerative colitis - Active disease (defined both clinically and endoscopically as Mayo-score >=5 with endoscopy score of 2 or 3) despite standard step-up treatment including optimized biological treatment - Obtained written informed consent

Exclusion criteria

Exclusion criteria: - Prior appendectomy or other abdominal surgery. - Any suspicion of Crohn*s disease. - Toxic megacolon - Patients with active extra-intestinal infections, liver or kidney failure, mayor lung and heart co-morbidity. - Insufficient command of Dutch or cognitively unable to complete Dutch questionnaires - Daily dosage of oral prednison equal to or higher than 20 mg - History of dysplasia and/or cancer in bowel

Design outcomes

Primary

MeasureTime frame
Steroid-free remission rate (total mayo score

Secondary

MeasureTime frame
- Time to remission - Endoscopic disease activity after 6 and 12 months, measured with the Mayo score - Reduction of medical therapy including corticosteroids - Failure (upscaling of medication, start trial medication or colectomy) - Biological free remission - Global, health related, and disease specific quality of life (EORTC-QLQ-C30-QL, EQ-5D-5L, and IBDQ) - Patient self-reported assessment of symptomatology (MYMOP score) - Percentage of patients interested in appendectomy after counselling - Cost-effectiveness - Radiological analysis of preoperative ultrasound images of the appendix to determine characteristics predictive of response. The main - Pathological analysis of coecal biopsies and resection specimen to determine histological characteristics predictive of response.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Jul 23, 2026