Evidence map›Paper›PMID 27014181›Full record

ArticleFrontiers in neurology2016

Espresso Coffee for the Treatment of Somnolence in Parkinson's Disease: Results of n-of-1 Trials.

Joaquim J Ferreira, Tiago Mestre, Leonor Correia Guedes, Miguel Coelho, Mário M Rosa, Ana T Santos, Márcio Barra, Cristina Sampaio, Olivier Rascol

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. 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 at 2 institutions in 2 countries.

Joaquim J FerreiraClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon, Lisbon, Portugal; Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
Tiago MestreClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon , Lisbon , Portugal.
Leonor Correia GuedesClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon , Lisbon , Portugal.
Miguel CoelhoClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon , Lisbon , Portugal.
Mário M RosaClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon, Lisbon, Portugal; Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
Ana T SantosClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon , Lisbon , Portugal.
Márcio BarraClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon , Lisbon , Portugal.
Cristina SampaioClinical Pharmacology Unit, Faculty of Medicine, Instituto de Medicina Molecular, University of Lisbon, Lisbon, Portugal; Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
Olivier RascolDepartments of Clinical Pharmacology and Neurosciences, University Hospital of Toulouse and Clinical Investigation Center INSERM CIC9302 and UMR825, University of Toulouse III , Toulouse , France.
University of Lisbon · PTUniversité Fédérale de Toulouse Midi-Pyrénées · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is limited information available concerning the treatment of daytime somnolence associated with Parkinson's disease (PD); the most frequently applied therapeutic strategies include decreasing the dose of dopamine agonists or adding potential wake-promoting agents. There is recent data from a placebo-controlled trial concluding on a non-significant trend in favor of caffeine. We aimed to evaluate the efficacy of espresso-coffee in the treatment of daytime somnolence in PD. To evaluate the efficacy of espresso-coffee in the treatment of daytime somnolence in PD, we have conducted multiple single-patient (n-of-1) clinical trials comparing regular espresso coffee to decaffeinated coffee in PD patients presenting moderate to severe daytime somnolence defined as an Epworth Sleepiness Scale score >9. Each single-patient (n-of-1) trial included a sequence of three crossovers (two treatment periods separated by two days of washout). Four patients were included in the studies and three completed the three pairs of treatment periods. In two of the four patients, espresso coffee was considered beneficial. This study concludes that multiple single patient trials are feasible in PD and suggests that espresso-coffee may have a beneficial effect on daytime somnolence in some patients. These results cannot be generalized beyond the patients included in these trials.

Indexed as

caffeinedaytime sleepinessn-of-1 trialsParkinson’s diseasesleep

Identifiers

PMID27014181
PMCPMC4782159
OpenAlexW2333734633

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.