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5-HT3 Receptor Antagonist (Ramosetron) vs Loperamide for the Treatment of Low Anterior Resection Syndrome(RALARS)

Safety & Efficacy of 5-HT3 Receptor Antagonist (Ramosetron) Versus Loperamide for the Treatment of Low Anterior Resection Syndrome (RALLARS): Multicenter Randomized Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05577845
Acronym
RaLARS
Enrollment
212
Registered
2022-10-13
Start date
2023-03-27
Completion date
2032-12-31
Last updated
2023-04-25

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

Conditions

LARS - Low Anterior Resection Syndrome

Brief summary

Safety & Efficacy of 5-HT3 Receptor Antagonist (Ramosetron) versus Loperamide for the Treatment of Low Anterior Resection Syndrome (RALLARS): Multicenter Randomized Controlled Trial

Interventions

DRUGRamosetron

Ramosetron, 4 weeks

Sponsors

Seoul National University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* mid and low rectal cancer (AV\<15cm) * stage II, III, preop long-course CCRT, then ileostomy repair * about 1\ 12 months after operation (no stomy) * about 1\ 6 months after ileostomy repair * major LARS

Exclusion criteria

* recurred rectal cancer * stage IV * IBD * uncontrolled preoperative fecal incontinence or constipation

Design outcomes

Primary

MeasureTime frameDescription
major Low Anterior Resection Syndrome (LARS)0 weeksLARS score (0-20, no, 21-29, minor, 30-42, major)
Difference of improvement of major Low Anterior Resection Syndrome (LARS)4 weeksLARS score (0-20, no, 21-29, minor, 30-42, major)

Secondary

MeasureTime frameDescription
EORTC QLQ-C30 score0 weeksQuality of life surveillance

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026