Evidence map›Paper›PMID 35943202›Full record

ArticleBrain and behavior2022

Real-life benefits of intrajejunal levodopa infusion therapy in four patients with the parkinsonian variant of progressive supranuclear palsy: A 1-year follow-up data report.

Vinod Metta, K Ray Chaudhuri, Valentina Leta, Kandadai Rukmini Mridula, Chaitanya Koduri, Sai Deepak, Rakesh Kalpala, Nageswar Reddy, Guy Chung-Faye, Rupam Borgohain

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

6 citing papers in PubMed, 6 citations in OpenAlex.

  1. Progressive Supranuclear Palsy-A Global Review.Movement disorders clinical practice · 2026
    Review
  2. Review
  3. Progressive Supranuclear Palsy in India: Past, Present, and Future.Annals of Indian Academy of Neurology · 2025
    Article
  4. Article
  5. Article
  6. 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

10 authors at 4 institutions in 2 countries.

Vinod MettaDepartment of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.ORCID 0000-0002-8970-8595
K Ray ChaudhuriDepartment of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Valentina LetaDepartment of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Kandadai Rukmini MridulaNizams Institute of Medical Sciences, Hyderabad, India.
Chaitanya KoduriAsian Institute of Gastroenterology, Hyderabad, India.
Sai DeepakAsian Institute of Gastroenterology, Hyderabad, India.
Rakesh KalpalaAsian Institute of Gastroenterology, Hyderabad, India.
Nageswar ReddyAsian Institute of Gastroenterology, Hyderabad, India.
Guy Chung-FayeDepartment of Gastroenterology, King's College Hospital, London, UK.
Rupam BorgohainNizams Institute of Medical Sciences, Hyderabad, India.
Asian Institute of Gastroenterology · INKing's College London · GBNizam's Institute of Medical Sciences · INKing's College Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProgressive supranuclear palsy (PSP) is a progressive neurodegenerative condition presenting with different clinical endophenotypes. The parkinsonian variant of PSP (PSP-P) is characterised by early but fading responsiveness to high-dose levodopa therapy; however, high-dose oral therapy is often associated with intolerance due to dopaminergic side effects and so doses may have to be capped despite clinical benefits. Evidence from animal models and real-life registries suggest far higher doses of levodopa can be tolerated if given in a continuous drug delivery (CDD) manner. We investigated tolerance and possible clinical benefits in patients with PSP-P still responsive to levodopa after initiating CDD in the form of intrajejunal levodopa infusion (IJLI) therapy as part of a compassionate usage program (CU).

methodsThis is an observational clinical data report from the IJLI implementation program undertaken in regional tertiary referral Parkinson's centres in India and at King's College Hospital London, Dubai as part of a CU. Four patients with PSP-P receiving IJLI as a part of a CU underwent evaluations of liver and renal function, motor and nonmotor function, quality of life, sleep dysfunction, fatigue, anxiety and depression, and cognitive impairment at baseline and 6 and 12 months post-IJLI initiation.

resultsIn total, three out of four patients successfully completed 12 months of treatment (6 months in one patient). All four patients showed good tolerability to IJLI even at higher doses (1400 and 1960 mg at 6 and 12 months, respectively) when compared to oral levodopa (812.5 ± 103 levodopa equivalent daily dose [LEDD]) and presented with overall persistent improvements in motor and nonmotor scores and quality-of-life scores at 6 and 12 months post-IJLI. All patients showed improvement in estimated glomerular filtration rate (43.50 ml/min/1.73 m

conclusionsIJLI led to persistent beneficial effects on motor and some nonmotor aspects in patients with PSP-P at up to 12 months after treatment with associated improvement in overall renal function.

Indexed as

Parkinson DiseaseSupranuclear Palsy, ProgressiveAntiparkinson AgentsFollow-Up StudiesHumansLevodopaQuality of LifeAntiparkinson AgentsLevodopaintrajejunal levodopa-carbidopa infusionmotor and nonmotor symptomsParkinsonian variant of progressive supranuclear palsyquality of life

Identifiers

PMID35943202
PMCPMC9480946
OpenAlexW4296039019

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.