Table of contents
- Overview of the trials
- COPD trial: add-on treatment in maintenance therapy
- Chronic hand eczema trial
- Main outcomes measured in the studies
- Study design, phases, and enrollment
- Patient-friendly explanation of key terms
Overview of the trials
The source data includes two interventional studies of Roflumilast, one in people with chronic obstructive pulmonary disease (COPD) and one in adults with chronic hand eczema.[1][2] Both studies are marked as completed.[1][2]
These trials are not general drug descriptions; they are research studies that ask whether Roflumilast may help in specific patient groups and what results can be measured over time.[1][2]
COPD trial: add-on treatment in maintenance therapy
The COPD study, NCT04636814, tested two doses of CHF6001 as an add-on to maintenance triple therapy in people with COPD.[1] The trial also included Roflumilast 500 micrograms and Roflumilast 250 micrograms as oral treatment options, with matching placebo groups for comparison.[1]
This was a phase 3 study with 3,978 participants.[1] The main goal was to see whether treatment could lower the annual rate of moderate and severe exacerbations over 52 weeks.[1] In simple words, the study looked at whether patients had fewer serious worsening episodes during one year of treatment.[1]
The study population was people with COPD who were already receiving maintenance triple therapy, which in the source is described as free or fixed combination of ICS, LABA, and LAMA.[1] This means the trial focused on patients who were already on regular COPD treatment, not on untreated patients.[1]
Chronic hand eczema trial
The second study, called HERO, tested oral Roflumilast in adults with chronic hand eczema.[2] It compared Roflumilast 500 micrograms with placebo.[2]
This was a phase 2 trial with 40 participants.[2] The purpose was to investigate both efficacy and safety in this skin condition.[2] Because it was a smaller phase 2 study, it was designed to get early information on whether the treatment may help adults with chronic hand eczema.[2]
The main outcome was the proportion of patients who achieved at least a 75% reduction in the Hand Eczema Severity Index, called HECSI75, at week 16 compared with baseline.[2] HECSI is a score that measures how severe hand eczema is by looking at both extent and intensity of the disease.[2]
Main outcomes measured in the studies
In the COPD trial, the main endpoint was the annual rate of moderate and severe exacerbations over 52 weeks.[1] An endpoint is the main result researchers plan to measure in a trial.[1]
In the hand eczema trial, the main endpoint was HECSI75 at week 16.[2] This means the researchers checked how many patients improved by at least 75% on the HECSI scale after 16 weeks of treatment.[2]
These endpoints show that the studies were designed to measure real patient outcomes: fewer COPD flare-ups and better control of hand eczema symptoms.[1][2]
Study design, phases, and enrollment
Both studies were interventional, which means the researchers gave a treatment and compared it with placebo or another study arm.[1][2] This type of design helps show whether a treatment may make a difference.
NCT04636814 was a phase 3 COPD study with 3,978 participants and a completed status.[1]
2022-503011-42-00 was a phase 2 hand eczema study with 40 participants and a completed status.[2]
The large difference in enrollment suggests that the COPD trial was meant to test the treatment in a much bigger group, while the hand eczema study was an earlier and smaller trial.[1][2]
Patient-friendly explanation of key terms
Maintenance therapy means the regular treatment a patient already uses to keep a chronic condition under control.[1] In the COPD study, Roflumilast was studied as an add-on to this ongoing treatment.[1]
Placebo is a look-alike treatment without the active study drug.[1][2] It helps researchers compare results fairly.
Baseline means the starting point before treatment begins.[2] In the hand eczema trial, the HECSI score at week 16 was compared with the baseline score.[2]
Moderate and severe exacerbations are worsening episodes of COPD symptoms that are serious enough to matter in daily life and medical care.[1] The COPD study measured how often these events happened over one year.[1]
HECSI is a scoring system for hand eczema severity.[2] HECSI75 means a 75% or greater improvement in that score.[2]



