Trial reportRespiratory research2018
A phase IIb randomized, chronic-dosing, incomplete block, cross-over study of glycopyrronium, delivered via metered dose inhaler, compared with a placebo and an active control in patients with moderate-to-severe COPD.
Trial report in Respiratory research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01350128 (A Randomized, Double-Blind, Chronic Dosing), which is not on this map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Randomized, Double-Blind, Chronic Dosing (7 Days), Three-Period, Six-Treatment, Placebo-Controlled, Incomplete Block, Cross-Over, Multi-Center Study to Assess Efficacy and Safety of Four Doses of PT001 in Patients With Moderate to Severe COPD, Compared With Atrovent® HFA Inhalation Aerosol (Open-Label) as An Active Control
Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- Glycopyrronium/Formoterol: A Review in COPD.Drugs · 2019Review
- Inhaled glycopyrrolate for the treatment of chronic obstructive pulmonary disease.International journal of chronic obstructive pulmonary disease · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLong-acting muscarinic antagonist (LAMA) and long-acting β
methodsIn this randomized, double-blind, 7-day chronic-dosing, three-period incomplete block, cross-over study, patients with moderate-to-severe COPD received two of the four doses of GP MDI (28.8 μg, 14.4 μg, 7.2 μg, and 3.6 μg) twice daily (BID), and either placebo MDI BID or open-label ipratropium MDI 34 μg four times daily. The primary efficacy endpoint was forced expiratory volume in 1 s (FEV
resultsAll GP MDI treatments were superior to placebo MDI for the primary efficacy endpoint (all p < 0.0001). However, only GP MDI 28.8 μg and 14.4 μg demonstrated statistical superiority to placebo MDI for all secondary efficacy endpoints analyzed in this study, with the exception of GP MDI 14.4 μg versus placebo MDI for the proportion of patients achieving ≥12% improvement in FEV
conclusionsThis study indicated that there was no advantage of GP MDI 28.8 μg compared with GP MDI 14.4 μg. It therefore added to the evidence from the Phase I/II clinical trial program, which identified GP MDI 14.4 μg as the most appropriate dose for use in the Phase III clinical studies.
trial registrationClinicalTrials.gov (NCT01350128). Registered May 09, 2011.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.