Table of contents
- Trial overview
- Asthma study: treatment use and control
- COPD study: clinical control in high-risk patients
- Study design, phases, and enrollment
- Main endpoints and what they mean
- Who the trials were designed for
Trial overview
The source data includes two completed Phase 3 interventional trials that studied lung disease treatment in people with asthma and chronic obstructive pulmonary disease (COPD).[1][2]
The provided trial records do not describe Indacaterol as the main study drug in the trial titles, but Indacaterol-containing treatments appear in the intervention lists of the COPD study data.[2]
Asthma study: treatment use and control
The first study, NCT05626777, was a completed Phase 3 trial in people with asthma.[1]
This study compared two ways of giving mepolizumab after the sixth injection: a nurse-administered pre-filled syringe group and a self-administered auto-injector pen group.[1]
The main goal was to compare treatment compliance, which means how well patients used the study treatment as planned, and to compare the proportion of patients with controlled asthma after 6 months.[1]
The study used pharmacy records and monthly patient diaries to check compliance, and it used the ACT score to measure asthma control.[1]
COPD study: clinical control in high-risk patients
The second study, 2023-507304-32-00, was a completed Phase 3 trial in patients with chronic obstructive pulmonary disease.[2]
It studied whether Trelegy® could improve clinical control compared with LABA-LAMA treatment in high-risk GOLD B+ patients.[2]
Clinical control in this study was a validated composite endpoint, which means it combined more than one measure of disease control, including stability and impact.[2]
The primary outcome asked whether patients stayed persistently controlled at all study visits over months 3, 6, 9, and 12.[2]
The intervention list for this study included many inhaled COPD treatments, including Indacaterol-containing products such as Onbrez Breezhaler and Xoterna Breezhaler among many others listed in the source data.[2]
Study design, phases, and enrollment
Both studies were interventional, meaning researchers assigned treatments rather than only observing usual care.[1][2]
Both were Phase 3 studies, which are late-stage clinical trials used to compare treatments in larger groups of patients.[1][2]
The asthma study planned for 130 participants, while the COPD study planned for 1028 participants.[1][2]
Both trials were marked as completed in the source data.[1][2]
Main endpoints and what they mean
A primary outcome is the main result a trial wants to measure.[1][2]
In the asthma study, the primary outcomes were compliance and the proportion of patients with controlled asthma after 6 months.[1]
In the COPD study, the primary outcome was whether patients remained clinically controlled at every study visit during the 12-month study period.[2]
The asthma study used the ACT score, pharmacy accountability, and monthly diaries, while the COPD study used a composite endpoint based on stability and impact.[1][2]
Who the trials were designed for
The asthma trial was designed for people with asthma who were receiving mepolizumab treatment in one of two delivery methods.[1]
The COPD trial was designed for high-risk GOLD B+ patients with chronic obstructive pulmonary disease.[2]
Across the provided records, the focus is on patient groups where treatment use, follow-up, and symptom control can be measured over time.[1][2]




