Evidence map›Paper›PMID 41565857›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2026

Efficacy and safety of IPX203 in Parkinson's patients: a systematic review and meta-analysis.

Asmaa Zakria Alnajjar, Maha AbuZarifa, Khaled A Zakout, Younis Alemour, Moaz Elsayed Abouelmagd, Siham Alshawamreh, Tayef Aldirawi, Mostafa Meshref

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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

8 authors.

Asmaa Zakria AlnajjarFaculty of Medicine, Al-Azhar University, Gaza, Palestine. asmaaalnjjar246@gmail.com.ORCID http://orcid.org/0000-0002-1254-4289
Maha AbuZarifaAl-Quds University, Al-Azhar Branch, Gaza, Palestine.ORCID http://orcid.org/0000-0003-3637-6221
Khaled A ZakoutAl-Quds University, Al-Azhar Branch, Gaza, Palestine. Khaledzakout9@gmail.com.ORCID http://orcid.org/0009-0006-2038-0305
Younis AlemourFaculty of Medicine, Al-Quds University, Al-Azhar Branch, Gaza, Palestine.ORCID http://orcid.org/0000-0001-7975-1154
Moaz Elsayed AbouelmagdFaculty of Medicine, Cairo University, Cairo, Egypt. moaz.s.sayed@gmail.com.ORCID http://orcid.org/0000-0002-0511-2429
Siham AlshawamrehFaculty of Medicine, Al-Quds University, Al-Azhar Branch, Gaza, Palestine.ORCID http://orcid.org/0000-0003-1101-0442
Tayef AldirawiFaculty of Medicine, Al-Quds University, Al-Azhar Branch, Gaza, Palestine.ORCID http://orcid.org/0000-0003-3400-3026
Mostafa MeshrefDepartment of Neurology, Faculty of Medicine, Al-Azhar university, Cairo, Egypt.ORCID http://orcid.org/0000-0003-0692-6309

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundParkinson's disease (PD) is one of the most common neurodegenerative disorders, characterized by motor symptoms in addition to non-motor symptoms that significantly impact the quality of life. While levodopa remains the gold standard for PD treatment, chronic use is associated with motor complications, including the "wearing-off" phenomenon and dyskinesia. IPX203, a novel extended-release carbidopa-levodopa (CD-LD) formulation, combines immediate-release granules with extended-release effects to maintain therapeutic plasma levels longer, potentially improving motor symptom management for PD patients.

methodsA computer literature search of PubMed, Scopus, Web of Science, Google Scholar, and Cochrane Library was conducted using relevant keywords. Records were screened for eligible studies and data were extracted and synthesized using Review Manager version 4.5 for Windows. Sensitivity analysis was conducted to investigate the efficacy of IPX203 against IR CD-LD.

resultsFour RCTs with a total of 712 patients were eligible for the final analysis. The mean difference (MD) of change in the main outcomes from baseline to endpoint favored IPX203 over IR CD-LD (UPDRS) (MD = -6.80, 95% CI: [-9.38, -4.23]; p < 0.00001). change in the off time favored IPX203 over IR CD-LD after sensitivity analysis (MD = -2.42, 95% CI: [-3.12, -1.71]; P < 0.00001). The mean difference (MD) of change in the " good on" time favored IPX203 over IR CD-LD after sensitivity analysis (MD = 2.15, 95% CI: [1.45, 2.86]; P < 0.00001). None of the adverse events were significantly higher in the case of IPX203 compared to IR CD-LD.

conclusionIPX203 shows a significant potential in improving motor functions, reducing "off" time while increasing "good on" time. This makes IPX203 a valuable addition to current PD treatment strategies.

Indexed as

Antiparkinson AgentsCarbidopaLevodopaParkinson DiseaseDrug CombinationsHumansAntiparkinson AgentsCarbidopacarbidopa, levodopa drug combinationDrug CombinationsLevodopaIPX203Parkinson disease

Identifiers

What OpenQuestion holds

Textmetadata
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.