Comparison · NCT01551758-05fc32aa
FF/VI 100 mcg/25 mcg vs Usual Care: Time to an Event of Discontinuation of Initial Therapy Occurring in a Year
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
Cite this record
ConductScience Library. FF/VI 100 mcg/25 mcg vs Usual Care: Time to an Event of Discontinuation of Initial Therapy Occurring in a Year. Trial comparisons, record NCT01551758-05fc32aa. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01551758-05fc32aa
On this page
Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0.268 | 0.245 | 0.292 | wilson | |
| Risk in group 2 | 0.156 | 0.138 | 0.176 | wilson | |
| Risk difference, group 1 minus group 2 | 0.112 | 0.0817 | 0.142 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.72 | 1.48 | 1.99 | log | |
| Odds ratio, group 1 over group 2 | 1.98 | 1.64 | 2.38 | log | |
| Number needed to treat, for one more participant with the outcome on FF/VI 100 mcg/25 mcg than on Usual Care | 8.94 | 7.06 | 12.2 | from the risk difference interval |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: usual care.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | FF/VI 100 mcg/25 mcg | Participants were prescribed one inhalation of fluticasone fuorate /vilaneterol (FF/VI) 100 mcg/25 mcg via dry powder inhaler (DPI) once daily in the morning for 12 months in lieu of existing maintenance therapy. Participants on previous triple therapy received LAMA therapy additionally. | 374 | 1,396 | OG001 |
| Group 2 | Usual Care | Participants continued their existing maintenance therapy that included one of the following: an inhaled corticosteroid (ICS) alone or Long Acting Beta Agonist (LABA) alone or Long Acting Muscarinic Antagonist (LAMA) alone or combination of any two (ICS+LABA/ ICS+LAMA/ LABA+LAMA) or triple therapy (ICS+LABA+LAMA) at the appropriate dosing schedule, for 12 months | 219 | 1,403 | OG000 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Time to an Event of Discontinuation of Initial Therapy Occurring in a Year
- Description
Initial therapy was defined as the treatment that the subject was randomised to at randomisation. Discontinuation of initial therapy was defined as any modification of initial therapy. These included stepping up, stepping down or switching to another class/class combination, or withdrawal from the study. Switching within the same drug class did not count unless participant switched from FF/VI to a different ICS/LABA. The analysis method was a Cox proportional hazards model adjusted for randomized treatment. The probability of discontinuation of initial therapy was measured from the date of randomisation (i.e., exposure start date) to the date of discontinuation of initial therapy to which the participant was randomized, or date of treatment termination (Visit 6 or early withdrawal visit) for participants who completed the study without discontinuing the initial therapy (censored). Number of participants with event is presented.
- Time frame
- Up to 364 days
- Population
- ITT Population
Source ClinicalTrials.gov
Trial
- Title
- A Randomised Effectiveness Study Comparing Fluticasone Furoate (FF, GW685698)/Vilanterol (VI, GW642444) With Standard Treatment in Chronic Obstructive Pulmonary Disease (COPD)
- NCT number
- NCT01551758
- Phases
- PHASE3
- Conditions
- Pulmonary Disease, Chronic Obstructive
- Interventions
- FF/VI, Existing Maintenance Therapy
- Lead sponsor
- GlaxoSmithKline
- Results first posted
- 2017-03-07
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01551758?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
For software
Read this comparison from software.
The record is JSON. No key.
GET https://conductscience.org/api/comparisons/v1/NCT01551758-05fc32aa