Evidence map›Paper›PMID 20373908›Full record

Trial reportJournal of aerosol medicine and pulmonary drug delivery2010

Mode of breathing-tidal or slow and deep-through the I-neb Adaptive Aerosol Delivery (AAD) system affects lung deposition of (99m)Tc-DTPA.

Kurt Nikander, Ivan Prince, Steven Coughlin, Simon Warren, Glyn Taylor

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of aerosol medicine and pulmonary drug delivery, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06157515 (Inhaled Dose Analysis Using a Breath Actuated Nebulizer in Healthy Subjects), which is not on this map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–field-weighted citation impact
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.

NCT06157515 nacompletednot on this mapstarted 2024, after this paper: background citation

Inhaled Dose Analysis Using a Breath Actuated Nebulizer in Healthy Subjects

TypeinterventionalSponsorChang Gung UniversityRan2024 to 2024Enrolled25ConditionsHealthy Volunteers, Aerosol Therapy, Inhaled Drug Dose, Pharmacogenomic Drug InteractionArmsBreath-actuated vibrating mesh nebulizer, Continuous vibrating mesh nebulizer
3 · Its place in the literature

Who cites it

31 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Trial
  4. Dynamics of nanoparticles in a 3D breathing lung-on-a-chip.Drug delivery and translational research · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Devices for Improved Delivery of Nebulized Pharmaceutical Aerosols to the Lungs.Journal of aerosol medicine and pulmonary drug delivery · 2019
    Review
  14. Review
  15. Article
  16. Article
  17. Fundamentals of aerosol therapy in critical care.Critical care (London, England) · 2016
    Review
  18. Inhalation drug delivery devices: technology update.Medical devices (Auckland, N.Z.) · 2015
    Review
  19. Review
  20. Article
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

5 authors.

Kurt NikanderPhilips Respironics, Parsippany, New Jersey 01970, USA. Kurt.nikander@philips.com
Ivan Prince
Steven Coughlin
Simon Warren
Glyn Taylor

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe I-neb AAD System was designed to deliver aerosol with two different breathing pattern algorithms: the Tidal Breathing Mode (TBM) and the Target Inhalation Mode (TIM). For the purpose of the study, the TBM breathing pattern algorithm was set to guide the subjects to inhalation during tidal breathing with aerosol pulsed during 50-80% of the time spent on inhalation, whereas the TIM breathing pattern was set to guide the subject to a slow and deep inhalation of up to approximately 9 sec with aerosol pulsed for up to 7 sec, leaving 2 sec for particle deposition in the lungs. In TIM, the inspiratory flow was guided to approximately 20 L/min through a built-in resistance in the mouthpiece.

methodsWe have, in a randomized, open-label, crossover study of 12 healthy subjects evaluated lung deposition following administration of a radiolabeled aerosol from the I-neb AAD System with the TBM and TIM breathing patterns.

resultsThe results showed that mean lung deposition was significantly higher when using the I-neb AAD System with the TIM breathing pattern (73.3%) than with the TBM breathing pattern (62.8%). The mean exhaled fractions were low (<1%) for both breathing patterns. The nebulization time was significantly shorter with the TIM breathing pattern (3.0 min) than with the TBM breathing pattern (4.7 min).

conclusionsThe results of the present study showed that lung deposition with the slow and deep inhalation achieved through the I-neb AAD System in TIM was superior to the lung deposition achieved during tidal breathing in TBM. With the combination of high lung deposition, almost no loss of aerosol during exhalation, and short nebulization time the I-neb AAD System with the TIM breathing pattern should be of special value to patients who require multiple daily dosing of aerosolized medication, are using drugs that should not be wasted into the room air, or would benefit from a more efficient delivery system.

Indexed as

Nebulizers and VaporizersRespiratory MechanicsAdministration, InhalationAdultAerosolsAgedAlgorithmsCross-Over StudiesDrug Delivery SystemsFemaleHumansLungMaleMiddle AgedRadiopharmaceuticalsTechnetium Tc 99m PentetateAerosolsRadiopharmaceuticalsTechnetium Tc 99m Pentetate

Identifiers

PMID20373908
PMCPMC3116638

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.