Evidence map›Paper›PMID 34478245›Full record

Observational studyBrain and behavior2021

Effects of safinamide on pain in patients with fluctuating Parkinson's disease.

Sotirios Grigoriou, Pablo Martínez-Martín, K Ray Chaudhuri, Katarina Rukavina, Valentina Leta, Denise Hausbrand, Björn Falkenburger, Per Odin, Heinz Reichmann

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Health-related quality of life in Parkinson's disease: systematic review and meta-analysis of EuroQol (EQ-5D) utility scores.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2024
    Pooled it
  2. Electrophysiological Evidence for Impaired Central Pain Modulation in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2025
    Article
  3. Observational
  4. Article
  5. Observational
  6. Review
  7. Article
  8. Review
  9. Review
  10. Management of OFF condition in Parkinson disease.The mental health clinician · 2023
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Effects of melatonin prolonged-release on both sleep and motor symptoms in Parkinson's disease: a preliminary evidence.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  16. Article
  17. A critical appraisal of MAO-B inhibitors in the treatment of Parkinson's disease.Journal of neural transmission (Vienna, Austria : 1996) · 2022
    Review
  18. Observational
  19. 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 4 institutions in 4 countries.

Sotirios GrigoriouDivision of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.ORCID 0000-0003-4951-6123
Pablo Martínez-MartínNational Center of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain.
K Ray ChaudhuriDepartment Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College London, Cutcombe Road, London, UK.
Katarina RukavinaDepartment Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College London, Cutcombe Road, London, UK.
Valentina LetaDepartment Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College London, Cutcombe Road, London, UK.
Denise HausbrandDepartment of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Björn FalkenburgerDepartment of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Per OdinDivision of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
Heinz ReichmannDepartment of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
King's College London · GBUniversity Hospital Carl Gustav Carus · DELund University · SEInstituto de Salud Carlos III · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-motor symptoms (NMS) are integral to Parkinson's Disease (PD) and management remains a challenge. Safinamide is a novel molecule in relation to addressing NMS due to its multifocal mechanism of action with both dopaminergic and non-dopaminergic properties.

objectiveTo investigate the efficacy of safinamide on NMS and its burden in PD patients with motor fluctuations after 6 months of treatment.

methodsThis observational, multicenter, open-label, pilot study assessed a wide range of NMS using the following rating scales, NMSS (non-motor symptom scale), KPPS (King's PD pain scale), HADS (hospital anxiety and depression scale), PDQ-8 (Parkinson's disease quality of life questionnaire), and PDSS-2 (Parkinson's disease sleep scale), EuroQol-5D 3 level version (EQ-5D-3L), CGI-I (clinical global impression of improvement), and PGI-C (patient global impression of change). Motor examination using UPDRS part III (Unified Parkinson's disease rating scale, motor examination), UPDRS IV (complications of therapy) and Hoehn and Yahr staging were also obtained.

results27 patients were included in the analysis and were evaluated at baseline and ≥ 6 months after safinamide treatment. 26 patients had a daily maintenance dose of 100 mg and 1 patient a daily dose of 50 mg. Significant improvements in UPDRS IV, KPPS item 5 (region-specific "off" dystonia), KPPS domain 3 (items 4-6, fluctuation related pain) and KPPS total score were observed after treatment with safinamide, while maintaining stable dopaminergic medication. No statistically significant differences were found in NMSS, HADS, PDSS-2, EQ-5D-3L, and PDQ-8 after treatment.

conclusionsOur results suggest that safinamide may have a beneficial effect on pain, a key unmet need in fluctuating PD patients.

Indexed as

Parkinson DiseaseAlanineAntiparkinson AgentsBenzylaminesHumansPainPilot ProjectsQuality of LifeAlanineAntiparkinson AgentsBenzylaminessafinamideglutamateMAO-B inhibitornon-motor symptomspainParkinson's diseasesafinamide

Identifiers

PMID34478245
PMCPMC8553314
OpenAlexW3197835798

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.