ArticleAAPS PharmSciTech2025
Innovative Drug Development Approach to Address the Transition to Low Global Warming Potential Propellant Using Hydrofluoroalkane-152a, for Triple Combination Pressurized Metered-Dose Inhaler Products Targeting Small Airways.
Article in AAPS PharmSciTech, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Global pMDI Use and the Potential Impact of European PFAS Legislation on Access to These Essential Inhaled Medications.Pulmonary therapy · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent and emerging environmental policies have boosted the investigation of pressurized metered-dose inhalers (pMDI) that have a minimal impact on climate change. There is a current move away from existing hydrofluorocarbon (HFC)-based propellants, specifically the hydrofluoroalkane (HFA)-134a and HFA-227ea based pMDI products that are approved for the treatment of asthma and chronic obstructive pulmonary disease (COPD), towards those that use low global warming potential (LGWP) propellants. Changing the propellant to, for example, the less environmentally-damaging HFA-152a, is a focus for many manufacturers. In this paper, we report an innovative approach to developing new pMDI drug products with a LGWP propellant. Moreover, proof of the hypothesis that products containing the current propellant and those using a LGWP propellant can achieve equivalent performance is reported, by showing comparability of a triple combination pMDI (Trimbow®) formulated using the LGWP HFA-152a propellant compared with HFA-134a. This paper will present the use of in silico mathematical modelling, leveraging on Chiesi proprietary Modulite® principles to predict and validate in vitro performances of the drug product under development. Validation is carried out using realistic aerodynamic particle size distribution (rAPSD), a novel approach that offers a more accurate prediction of aerosol distribution by incorporating variations compared to the standard aerodynamic particle size distribution (APSD). Additional in vitro testing validates the prediction of in silico models and confirms good comparability in terms of aerodynamic performance between HFA-152a and HFA-134a, which translates in vivo as evidenced by the preliminary pharmacokinetics (PK) in animal models and the formal clinical PK bioequivalence (BE) studies. (Rony et al. in Pulm Pharmacol Ther 85, 2024).
Indexed as
Identifiers
40011324What OpenQuestion holds
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.