CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 10 enrolled / 10 target
Drug / intervention
Sirolimusdrug
Likely dose
Sirolimus 2mgfrom 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/NCT05269849
NCT05269849Phase 2CompletedUpdate Overdue (0.2/mo)Completion was 18mo ago

Sirolimus for Nosebleeds in HHT: A Phase II Pilot Study

Unity Health Toronto·interventional·Posted Mar 8, 2022·Updated Jun 4, 2026

In Brief

A Phase 2 clinical trial evaluating Sirolimus for Hereditary Hemorrhagic Telangiectasia and 2 related conditions. Completed, enrolled 10 participants across 1 site.

Signals

Enrollment appears stalled

Detailed Summary

This pilot study is to determine the safety and efficacy of oral sirolimus (blood trough level 6-10ng/ml) in patients with HHT that are experiencing moderate or severe epistaxis. The effect of oral sirolimus on epistaxis will be compared to baseline using the Patient-Reported Outcome of cumulative weekly nose Bleeding Duration (PRO-CB). The PRO-CB association with biomarker variability over the duration of the study will be investigated. In the pilot study subjects will be treated with 2mg of sirolimus once daily to obtain a trough level of 6-10ng/ml for 3 months.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada

Timeline

Phase 2CompletedFinished
2023202420252026
First PostedMar 8, 2022
Enrollment StartMar 16, 2022
Primary CompletionDec 2, 2024
TodayJul 2, 2026
Enrollment to primary: 2.7 yearsPosted 4.3 years ago

Arms & Interventions

All Participantsexperimental

All participants received Sirolimus and were followed over the 9-month study period (3-month baseline, 3-month treatment period, 3-month follow up period). During 3-month treatment period, oral sirolimus was provided with a target blood trough of 6-10 ng/ml

Drug: Sirolimus

Interventions

Sirolimusdrug

Oral sirolimus provided with starting dose of 2mg once daily, adjusted to maintain drug blood levels of 6-10 ng/ml (3-month course)