Evidence map›Paper›PMID 33908647›Full record

Observational studyMovement disorders : official journal of the Movement Disorder Society2021

Concomitant Medication Usage with Levodopa-Carbidopa Intestinal Gel: Results from the COSMOS Study.

Alfonso Fasano, Tanya Gurevich, Robert Jech, Norbert Kovács, Per Svenningsson, József Szász, Juan Carlos Parra, Lars Bergmann, Anita Johnson, Olga Sanchez-Soliño and 2 more

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Movement disorders : official journal of the Movement Disorder Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Effects of levodopa/carbidopa intestinal gel infusion on autonomic symptoms in advanced Parkinson's disease: a systematic review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
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  14. Advanced therapies in Parkinson's disease: an individualized approach to their indication.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  15. Monotherapy with infusion therapies - useful or not?Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  16. Article
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  19. Current and novel infusion therapies for patients with Parkinson's disease.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Review
  20. Punding in Parkinson's Disease: An Update.Movement disorders clinical practice · 2023
    Review
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

12 authors at 8 institutions in 8 countries.

Alfonso FasanoEdmond J Safra Program in Parkinson's Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital and Division of Neurology, UHN, Division of Neurology, University of Toronto, Toronto, Ontario, Canada.
Tanya GurevichMovement Disorders Unit, Neurological Institute, Tel Aviv Sourasky Medical Center, and Tel Aviv University, Tel Aviv, Israel.
Robert JechDepartment of Neurology and Center of Clinical Neurosciences, 1st Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic.
Norbert KovácsUniversity of Pécs Medical School, Pécs, Hungary.
Per SvenningssonDepartment of Clinical Neuroscience, Section for Neurology, Karolinska Institutet, Stockholm, Sweden.
József SzászGeorge Emil Palade University of Medicine, Pharmacy, Science and Technology of Tîrgu Mureș, Emergency Clinical County Hospital Tîrgu Mureș, Târgu Mureș, Romania.
Juan Carlos ParraAbbVie Inc., North Chicago, Illinois, USA.
Lars BergmannAbbVie Inc., North Chicago, Illinois, USA.
Anita JohnsonAbbVie Inc., North Chicago, Illinois, USA.
Olga Sanchez-SoliñoAbbVie Inc., North Chicago, Illinois, USA.
Zhongwen TangAbbVie Inc., North Chicago, Illinois, USA.
Lydia Vela-DesojoDepartment of Neurology, Hospital Universitario Fundación Alcorcón, Madrid, Spain.
AbbVie (United States) · USGeneral University Hospital in Prague · CZHospital Universitario Fundación Alcorcón · ESKarolinska Institutet · SEKrembil Foundation · CATel Aviv University · ILUniversitatea de Medicină, Farmacie, Științe și Tehnologie „George Emil Palade” din Târgu Mureș · ROUniversity of Pecs · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLevodopa-carbidopa intestinal gel (LCIG) is administered directly to the small intestine of patients with advanced Parkinson's disease (APD) to help maintain stable plasma levodopa levels.

objectiveThe objective of this study was to investigate the effect of LCIG in reducing polypharmacy for the treatment of APD.

methodsThe COmedication Study assessing Mono- and cOmbination therapy with levodopa-carbidopa inteStinal gel (COSMOS) is a large, real-world, multinational observational study investigating comedication use with LCIG. All enrolled patients had used LCIG for ≥12 months and data were collected cross-sectionally (study visit) and retrospectively. The primary endpoint was the percentage of patients using LCIG as monotherapy (without add-on PD medications) at initiation and at 3, 6, 9, and 12 months thereafter.

resultsOverall, 409 patients were enrolled from 14 countries and were treated with LCIG for a mean of 35.8 ± 23.2 months. A total of 15.2% of patients initiated LCIG as monotherapy and 31.7% were receiving monotherapy at 12 months after initiation. The mean duration of LCIG monotherapy was 39.3 ± 25.6 months. Use of add-on medications decreased over time with all LCIG regimens. From LCIG initiation to the patient visit, mean off time decreased by 3.8, 4.6, and 3.9 hours/day for LCIG monotherapy, LCIG daytime monotherapy, and LCIG polytherapy groups, respectively, while duration of dyskinesia decreased by 1.7, 2.0, and 1.9 hours/day, respectively. Adverse events likely related to study treatment occurred in 112 patients (27.4%) during LCIG treatment.

conclusionsLCIG is an effective long-term monotherapy option with a positive risk-benefit profile and contributes to reduced polypharmacy for patients with APD. © 2021 The AbbVie Inc. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

CarbidopaParkinson DiseaseAntiparkinson AgentsDrug CombinationsGelsHumansLevodopaRetrospective StudiesAntiparkinson AgentsCarbidopaDrug CombinationsGelsLevodopalevodopa-carbidopa intestinal gel; monotherapy; Parkinson's disease; drug polytherapy; observational studies

Identifiers

PMID33908647
PMCPMC8453961
OpenAlexW3159808103

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.