Evidence map›Paper›PMID 28132845›Full record

Trial reportJournal of cystic fibrosis : official journal of the European Cystic Fibrosis Society2017

Use of hyperpolarized helium-3 MRI to assess response to ivacaftor treatment in patients with cystic fibrosis.

Talissa A Altes, Mac Johnson, Meredith Fidler, Martyn Botfield, Nicholas J Tustison, Carlos Leiva-Salinas, Eduard E de Lange, Deborah Froh, John P Mugler

Registry-linked trialAbstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05392855 (Symptom Based Performance of Airway Clearance Therapy After Starting Highly Effective CFTR Modulator Therapy for Cystic Fibrosis), which is not on this map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
–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.

NCT05392855 naterminatednot on this mapstarted 2023, after this paper: background citation

Symptom Based Performance of Airway Clearance Therapy After Starting Highly Effective CFTR Modulator Therapy for Cystic Fibrosis

TypeinterventionalSponsorUniversity of Missouri-ColumbiaRan2023 to 2024Enrolled6ConditionsCystic Fibrosis, Mucociliary Clearance DefectArmsSymptom driven performance of airway clearance, Continuous daily performance of airway clearance
3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Pulmonary MRI in Newborns and Children.Journal of magnetic resonance imaging : JMRI · 2025
    Review
  4. Article
  5. Article
  6. Review
  7. [Magnetic resonance imaging of the lung : State of the art].Radiologie (Heidelberg, Germany) · 2023
    Article
  8. Lung functional imaging.Breathe (Sheffield, England) · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. In vivo methods and applications of xenon-129 magnetic resonance.Progress in nuclear magnetic resonance spectroscopy · 2021
    Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Airway Inflammation and Host Responses in the Era of CFTR Modulators.International journal of molecular sciences · 2020
    Review
  20. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Talissa A AltesDepartment of Radiology, One Hospital Drive, University of Missouri, Columbia, MO 65212, USA. Electronic address: altest@health.missouri.edu.
Mac JohnsonVertex Pharmaceuticals Incorporated, 50 Northern Ave Boston, MA 02210, USA. Electronic address: mac_johnson@vrtx.com.
Meredith FidlerVertex Pharmaceuticals Incorporated, 50 Northern Ave Boston, MA 02210, USA. Electronic address: meredith_fidler@vrtx.com.
Martyn BotfieldVertex Pharmaceuticals Incorporated, 50 Northern Ave Boston, MA 02210, USA. Electronic address: martynbotfield@gmail.com.
Nicholas J TustisonUniversity of Virginia, 480 Ray C. Hunt Drive, Snyder Building, Office 124, Charlottesville, VA 22903, USA. Electronic address: ntustison@gmail.com.
Carlos Leiva-SalinasUniversity of Virginia, University Hospital, First Floor 1215 Lee St., Charlottesville, VA, 22908, USA. Electronic address: carlosleivasalinas@gmail.com.
Eduard E de LangeUniversity of Virginia, University Hospital, First Floor 1215 Lee St., Charlottesville, VA, 22908, USA. Electronic address: eed6s@virginia.edu.
Deborah FrohUniversity of Virginia, 100 Hospital Dr #5408, Charlottesville, VA 22903, USA. Electronic address: dkf2x@virginia.edu.
John P MuglerUniversity of Virginia, Snyder Translational Research Building - Room 154, 480 Ray C. Hunt Drive, Charlottesville, VA 22903, USA. Electronic address: jpm7r@virginia.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis pilot study evaluated the effect of short- and long-term ivacaftor treatment on hyperpolarized

methodsPart A (single-blind) comprised 4weeks of ivacaftor treatment; Part B (open-label) comprised 48weeks of treatment. The primary outcome was change from baseline in total ventilation defect (TVD; total defect volume:total lung volume ratio).

resultsMean change in TVD ranged from -8.2% (p=0.0547) to -12.8% (p=0.0078) in Part A (n=8) and -6.3% (p=0.1953) to -9.0% (p=0.0547) in Part B (n=8) as assessed by human reader and computer algorithm, respectively.

conclusionsTVD responded to ivacaftor therapy.

Indexed as

Cystic FibrosisPulmonary VentilationAdultAminophenolsChloride Channel AgonistsCystic Fibrosis Transmembrane Conductance RegulatorDrug Administration ScheduleDrug MonitoringFemaleForced Expiratory VolumeHeliumHumansIsotopesMagnetic Resonance ImagingMaleMiddle AgedAminophenolsChloride Channel AgonistsCystic Fibrosis Transmembrane Conductance RegulatorHeliumHelium-3IsotopesivacaftorQuinolonescystic fibrosis transmembrane conductance regulator modulatorforced expiratory volumepulmonary

Identifiers

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.