CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 177 enrolled
Drug / intervention
aCRT ON +1 moredevice
Likely dose
Not stated in 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/NCT04180696
NCT04180696N/ACompleted

Mid-Q Response Study

Medtronic Cardiac Rhythm and Heart Failure·interventional·Posted Nov 27, 2019·Updated Jul 9, 2025

In Brief

A clinical study evaluating aCRT ON and aCRT OFF for Heart Failure and 5 related conditions. Completed, enrolled 177 participants across 61 sites in 10 countries.

Detailed Summary

The Mid-Q Response study is a prospective, multi-center, randomized controlled, interventional, single-blinded, post-market study. The purpose of the Mid-Q Response study is to test the hypothesis that the AdaptivCRT (aCRT) algorithm is superior to standard CRT therapy regarding patient outcomes in CRT indicated patients with moderate QRS duration, preserved atrioventricular (AV) conduction and left bundle branch block (LBBB). The study will be executed at approximately 60 centers in Asia. The subjects will be randomly assigned in a 1:1 ratio to the aCRT ON (Adaptive Bi-V and LV) group or the aCRT OFF (Nonadaptive CRT) group. The primary objective is to test the hypothesis that aCRT ON increases the proportion of patients that improve on the Clinical Composite Score (CCS) compared to aCRT OFF at 6 months of follow-up.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesBrunei, China, Hong Kong, Indonesia, Japan, Malaysia, Philippines, Singapore, South Korea, Taiwan

Timeline

N/ACompletedFinished
2020202120222023202420252026
First PostedNov 27, 2019
Enrollment StartJan 23, 2020
Primary CompletionMar 28, 2024
TodayJul 2, 2026
Enrollment to primary: 4.2 yearsPosted 6.6 years ago

Interventions

aCRT ONdevice

CRT device with AdaptivCRT enabled

aCRT OFFdevice

CRT device with AdaptivCRT disabled