Evidence map›Paper›PMID 31187190›Full record

SynthesisJournal of neurology2019

Forced vital capacity and cross-domain late-onset Pompe disease outcomes: an individual patient-level data meta-analysis.

Kenneth I Berger, Steve Kanters, Jeroen P Jansen, Andrew Stewart, Susan Sparks, Kristina An Haack, Anna Bolzani, Gaye Siliman, Alaa Hamed

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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.

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

7 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. 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

9 authors.

Kenneth I BergerAndré Cournand Pulmonary Physiology Laboratory, Bellevue Hospital, New York, NY, USA. Kenneth.Berger@nyumc.org.ORCID http://orcid.org/0000-0003-4879-6071
Steve KantersPrecision Xtract, Vancouver, BC, Canada.
Jeroen P JansenPrecision Xtract, Oakland, CA, USA.
Andrew StewartSanofi Genzyme, Cambridge, MA, USA.
Susan SparksSanofi Genzyme, Cambridge, MA, USA.
Kristina An HaackSanofi Genzyme, Cambridge, MA, USA.
Anna BolzaniPrecision Xtract, Vancouver, BC, Canada.
Gaye SilimanPrecision Xtract, Vancouver, BC, Canada.
Alaa HamedSanofi Genzyme, Cambridge, MA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLate-onset Pompe disease (LOPD) is a rare, metabolic disease primarily affecting the musculoskeletal and respiratory systems. Forced vital capacity (FVC) is commonly used to measure pulmonary function; however, associations between FVC and other LOPD outcomes remain unclear.

methodsA systematic literature review was conducted on November 2015, updated September 2016 and supplemented with clinical trial data from the sponsor. Outcomes included: 6-min walk test distance (6MWT), FVC, maximal inspiratory/expiratory pressure (MIP/MEP), Medical Research Council-skeletal muscle strength score (MRC), 36-item short-form survey-physical component score (SF-36), Rotterdam Handicap Scale (RHS), Fatigue Severity Scale (FSS) and survival. Individual patient data meta-analysis was used for cross-sectional analyses and longitudinal analyses to determine associations between percent of predicted FVC and LOPD measures and outcomes.

resultsFifteen studies were selected. From cross-sectional analyses, FVC and MRC were most strongly associated. Specifically, patients with 10% higher FVC (a round number for illustrative purposes only) were associated with a 4.72% (95% confidence interval [CI]: 3.37, 6.07) higher MRC score, indicating a positive association. Similarly, slopes for the 6MWT and SF-36 relative to a 10% higher FVC were estimated at 33.2 meters (95% CI 24.0, 42.4) and 1.2% (95% CI 0.24, 2.16%), respectively. From longitudinal analyses, a 10% incremental increase in predicted FVC was associated with an average increase of 4.12% in MRC score (95% CI 1.29, 6.95), 35.6 m in the 6MWT (95% CI 19.9, 51.6), and 1.34% in SF-36 (95% CI 0.08, 2.60). There was insufficient data to conduct analyses for RHS, FSS and survival.

conclusionsFVC is positively associated with LOPD measures and outcomes across multiple domains. Additionally, longitudinal changes in FVC are positively associated with changes in the 6MWT, MRC and SF-36.

Indexed as

Age of OnsetCross-Sectional StudiesGlycogen Storage Disease Type IIHumansTreatment OutcomeVital Capacity6-min walk testForced vital capacityIndividual patient-level data meta-analysisLate-onset Pompe disease

Identifiers

PMID31187190
PMCPMC6687674

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Registered trials

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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.