CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 78 enrolled
Drug / intervention
Fexofenadine Hcl 180Mg Tab +1 moredrug
Likely dose
Fexofenadine Hcl 180Mg Tabfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04726345
NCT04726345Phase 2Completed

Effect of Antihistamines on Ureteral Stent-Related Symptoms: Randomized Controlled Trial

Columbia University·interventional·Posted Jan 27, 2021·Updated Jul 16, 2025

In Brief

A Phase 2 clinical trial evaluating Fexofenadine Hcl 180Mg Tab and Placebo for Nephrolithiasis. Completed, enrolled 78 participants across 1 site.

Detailed Summary

This is a prospective, double-blind, randomized, open-label, single-center trial of up to 78 participants who are adult patients (aged 18-80 years) and are undergoing unilateral retrograde ureteroscopy with planned ureteral stent placement for treatment of urinary tract stones. Eligible patients will be randomly and divided into two groups in a 1:1 ratio. Group A will receive fexofenadine 180 mg once daily in addition to standard of care treatment. Group B will receive placebo in addition to standard of care treatment. The routine standard of care treatment will consist of oral non-steroidal anti-inflammatory drugs (NSAIDs). The primary outcomes of the study are the Ureteral Stent Symptom Questionnaire (USSQ) urinary symptom score and pain score. Secondary outcomes include (i) number of office phone calls due to urinary symptoms; (ii) duration of analgesic use; (iii) duration and quantity of narcotic use; (iv) number of emergency department visits; (v) drug-related adverse effects; (vi) other domains of the USSQ.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsNephrolithiasis
CountriesUnited States
CollaboratorsColoplast A/S

Timeline

Phase 2CompletedFinished
202120222023202420252026
First PostedJan 27, 2021
Enrollment StartJun 29, 2021
Primary CompletionJun 30, 2024
TodayJul 2, 2026
Enrollment to primary: 3.0 yearsPosted 5.4 years ago

Interventions

Fexofenadine Hcl 180Mg Tabdrug

Fexofenadine 180mg tablet to be taken orally once a day until stent removal.

Placebodrug

Placebo tablet to be taken orally once a day until stent removal.