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Protective Ileostomy Versus Protective Colostomy in Anterior Rectal Resection

PROtective ileoStomy Versus ProtectivE Colostomy in Anterior Rectal resectIon - a Multicenter, Open-label, Randomized conTrolled studY (PROSPERITY)

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06650085
Acronym
PROSPERITY
Enrollment
350
Registered
2024-10-21
Start date
2025-10-06
Completion date
2033-10-01
Last updated
2026-06-09

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

Conditions

Stoma Colostomy, Stoma Ileostomy

Brief summary

Loop ileostomy and loop colostomy are both used as protective stomas after anterior resection. There is a lack of evidence on the superiority of loop ileostomy versus loop colostomy. This is a multicenter, open-label, superiority, individually randomized controlled trial including patients undergoing anterior rectal resection with primary anastomosis and a protective stoma. Patients scheduled for anterior rectal resection are randomized 1:1 to loop ileostomy or loop colostomy intraoperatively. Primary outcome is cumulative stoma-related adverse events within 60 days post-primary surgery (scored using Comprehensive Complication Index (CCI)).

Interventions

Patient undergoing anterior rectal resection will receive loop ileostomy

PROCEDURELoop colostomy

Patient undergoing anterior rectal resection will receive loop colostomy

Sponsors

Helsinki University Central Hospital
Lead SponsorOTHER
Mary and Georg Ehrnrooth's foundation
CollaboratorUNKNOWN
Helsinki University Hospital Research Funds
CollaboratorUNKNOWN

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patients undergoing anterior resection (resection of the rectum and colorectal or coloanal anastomosis) due to a rectal tumour and a protective stoma is planned. The

Exclusion criteria

are: (1) patient already having a stoma (or another stoma made during surgery), (2) technical inability to create ileo- or colostomy (e.g. previous bowel resection, anatomical factors), (3) age \<18 years, (4) inadequate ability to co-operate.

Design outcomes

Primary

MeasureTime frameDescription
Stoma-related adverse eventsWithin 60 days from randomizationStoma-related adverse events score by using Comprehensive Complication Index

Secondary

MeasureTime frameDescription
Postoperative complicationsWithin 30 days from randomizationAll complications scored using Comprehensive Complication Index
Postoperative complications after stoma closureWithin 30 days from stoma closureAll complications after stoma closure using Comprehensive Complication Index (including only patients who have undergone stoma closure within 1 year from primary surgery)
Hospital-free daysWithin 30 days from randomizationDays patient is alive and out of any hospital
Quality of lifeAt 2 months from randomizationQuality of life measured using EORTC Quality of life questionnaires core 30 with colorectal 29 extension (QLQ-C30+QLQ-CR29)
Kidney function changeWithin 1 year from randomizationKidney function change defined as difference in eGFR before and 1 year after randomization

Countries

Finland

Contacts

CONTACTLaura Koskenvuo, MD, PhD
laura.koskenvuo@hus.fi+358-9-4711
CONTACTVille Sallinen, MD, PhD
ville.sallinen@helsinki.fi+358-9-4711
PRINCIPAL_INVESTIGATORVille Sallinen, MD, PhD

Helsinki University Central Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 10, 2026