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Power calculations and placebo effect for future clinical trials in progressive supranuclear palsy

Overview of attention for article published in Movement Disorders, March 2016
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  • Average Attention Score compared to outputs of the same age and source

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3 X users
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1 patent

Citations

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32 Dimensions

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108 Mendeley
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Title
Power calculations and placebo effect for future clinical trials in progressive supranuclear palsy
Published in
Movement Disorders, March 2016
DOI 10.1002/mds.26580
Pubmed ID
Authors

Maria Stamelou, Jakob Schöpe, Stefan Wagenpfeil, Teodoro Del Ser, Jee Bang, Iryna Y. Lobach, Phi Luong, Gesine Respondek, Wolfgang H. Oertel, AdamL. Boxer, Günter U. Höglinger, Tauros Investigators for the AL‐108‐231 Investigators

Abstract

Two recent randomized, placebo-controlled trials of putative disease-modifying agents (davunetide, tideglusib) in progressive supranuclear palsy (PSP) failed to show efficacy, but generated data relevant for future trials. We provide sample size calculations based on data collected in 187 PSP patients assigned to placebo in these trials. A placebo effect was calculated. The total PSP-Rating Scale required the least number of patients per group (N = 51) to detect a 50% change in the 1-year progression and 39 when including patients with ≤ 5 years disease duration. The Schwab and England Activities of Daily Living required 70 patients per group and was highly correlated with the PSP-Rating Scale. A placebo effect was not detected in these scales. We propose the 1-year PSP-Rating Scale score change as the single primary readout in clinical neuroprotective or disease-modifying trials. The Schwab and England Activities of Daily Living could be used as a secondary outcome. © 2016 International Parkinson and Movement Disorder Society.

X Demographics

X Demographics

The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 108 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Philippines 1 <1%
Germany 1 <1%
Unknown 106 98%

Demographic breakdown

Readers by professional status Count As %
Other 20 19%
Researcher 15 14%
Professor 12 11%
Student > Ph. D. Student 8 7%
Student > Bachelor 7 6%
Other 21 19%
Unknown 25 23%
Readers by discipline Count As %
Medicine and Dentistry 34 31%
Neuroscience 24 22%
Psychology 4 4%
Nursing and Health Professions 3 3%
Pharmacology, Toxicology and Pharmaceutical Science 2 2%
Other 10 9%
Unknown 31 29%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 5. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 January 2023.
All research outputs
#6,766,869
of 24,565,648 outputs
Outputs from Movement Disorders
#2,304
of 4,971 outputs
Outputs of similar age
#88,629
of 304,330 outputs
Outputs of similar age from Movement Disorders
#65
of 106 outputs
Altmetric has tracked 24,565,648 research outputs across all sources so far. This one has received more attention than most of these and is in the 72nd percentile.
So far Altmetric has tracked 4,971 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 10.5. This one has gotten more attention than average, scoring higher than 53% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 304,330 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 70% of its contemporaries.
We're also able to compare this research output to 106 others from the same source and published within six weeks on either side of this one. This one is in the 37th percentile – i.e., 37% of its contemporaries scored the same or lower than it.