Evidence map›Paper›PMID 23918220›Full record

ArticlePharmaceutical research2014

Towards a more desirable dry powder inhaler formulation: large spray-dried mannitol microspheres outperform small microspheres.

Waseem Kaialy, Tariq Hussain, Amjad Alhalaweh, Ali Nokhodchi

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 60 citations in OpenAlex.

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  9. The effect of metal salts on aerosol performance of spray dried carrier-free formulations of levofloxacin.Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 4 countries.

Waseem KaialyChemistry and Drug Delivery Group, Medway School of Pharmacy, University of Kent, ME4 4TB, Kent, UK, waseemkaialy@hotmail.co.uk.
Tariq Hussain
Amjad Alhalaweh
Ali Nokhodchi
SDS Life Science (Sweden) · SETabriz University of Medical Sciences · IRUniversity of Greenwich · GBUniversity of Kent · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate, for the first time, the performance of a dry powder inhaler (DPI, Aerolizer(®)) in the case of a model drug (i.e. albuterol sulphate) formulated with spray dried mannitol carrier particles with homogeneous shape and solid-state form but different sizes.

methodsSpray dried mannitol (SDM) particles were characterized in terms of size, surface area, morphology, water content, solid-state, density and electrostatic charge by a novel approach. DPI formulations composed of SDM and albuterol sulphate (AS) were prepared and evaluated in terms of drug content homogeneity and in vitro aerosolization performance.

resultsAll SDM particles generated similar fine particle fractions of AS. Formulations consisting of larger SDM particles demonstrated better drug content homogeneity, reduced amounts of drug loss and reduced oropharyngeal deposition. Comparing different SDM products demonstrated that SDM powders with relatively poorer flowability, wider size distributions and higher charge density generated DPI formulations with poorer drug content homogeneity and deposited higher amount of drug on the inhaler, mouthpiece adaptor and throat. DPI formulation total desirability increased linearly with the mean diameter of SDM.

conclusionParticle shape and solid-state form of mannitol could dominate over carrier size, bulk density, flowability and charge in terms of determining the aerosolization behaviour of AS formulated with mannitol carrier, at least within the experimental protocols applied in the present study.

Indexed as

Administration, InhalationAlbuterolChemistry, PharmaceuticalDrug CarriersDry Powder InhalersMannitolMicrospheresParticle SizePorosityPowdersAlbuterolDrug CarriersMannitolPowders

Identifiers

PMID23918220
OpenAlexW1970607021

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.