Observational Retrospective Cohort of Patient Support Program Data on Practical Experiences of Treatment with Foslevodopa/Foscarbidopa in Advanced Parkinson's Disease: The ORCHESTRA Study.
Observational Retrospective Cohort of Patient Support Program Data on Practical Experiences of Treatment with Foslevodopa/Foscarbidopa in Advanced Parkinson's Disease: The ORCHESTRA Study.
Where did the research take place?
The study site has not been established. Author addresses may differ from where the research occurred.
Münster, DE · Author affiliation
Department of Neurology and Neurorehabilitation, Klinikum Osnabrück-Academic Teaching Hospital of the University of Münster, Am Finkenhügel 1, 49076, Osnabrück, Germany. tobias.warnecke@klinikum-os.de.Location evidence
Osnabrück, DE · Author affiliation
Department of Neurology and Neurorehabilitation, Klinikum Osnabrück-Academic Teaching Hospital of the University of Münster, Am Finkenhügel 1, 49076, Osnabrück, Germany. tobias.warnecke@klinikum-os.de.Location evidence
Leiderdorp, NL · Author affiliation
Alrijne Hospital Leiderdorp, Simon Smitweg 1, 2353 GA, Leiderdorp, Netherlands.Location evidence
Graz, AT · Author affiliation
Department of Neurology, Medical University of Graz, Auenbruggerplatz 22, 8036, Graz, Austria.Location evidence
Stockholm, SE · Author affiliation
Department of Clinical Neuroscience, Karolinska Institutet, NKS A8:06, 171 76, Stockholm, Sweden.Location evidence
Timişoara, RO · Author affiliation
Department of Neurology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.Location evidence
North Chicago, US · Author affiliation
AbbVie Inc., North Chicago, IL, USA.Location evidence
Potsdam, DE · Author affiliation
Department of Neurology, Klinikum Ernst Von Bergmann, Charlottenstrasse 72, 14467, Potsdam, Germany.Location evidence
Düsseldorf, DE · Author affiliation
Department of Neurology, University Hospital Düsseldorf, Moorenstrasse 5, 40225, Düsseldorf, Germany.Location evidence
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Original abstract
INTRODUCTION: Foslevodopa/foscarbidopa (LDp/CDp) is a continuous 24-h subcutaneous infusion therapy for advanced Parkinson's disease (aPD). Clinical trials have demonstrated the efficacy and safety of LDp/CDp; however, real-world evidence is limited. METHODS: This retrospective multi-country cohort study used data recorded by AbbVie's patient support program (PSP) nurses during routine interactions with patients with aPD on LDp/CDp (December 2023-February 2025). Patients were followed until earliest of treatment discontinuation or database lock. Patients who started therapy during the study period were included without a pre-defined follow-up duration or standardized scheduled visits. RESULTS: A total of 2590 patients (38.3% female) were followed on average for 141.1 days. During follow-up, mean LDp/CDp base infusion rate was 0.36 (SD = 0.14) mL/h, equivalent to 62.0 (SD = 23.6) mg/h. During the optimization period (mean = 5.4 days), infusion rates generally increased from initial recorded dose to optimization, then remained stable. Among participants with available effectiveness data, 60.0% and 83.0% reported 0 h/day of "Off" and dyskinesia symptoms, respectively, in the first month post-optimization; with similar observations over time. 61.1% of patients were assessed as handling the pump well and 80.5% as applying skin care well during the optimization period; both increased post-optimization. The most common reason for discontinuation was infusion site events (5.1%). Exploratory results indicated that younger patients (< 65 years) with shorter disease duration (< 10 years), managed the system better and had more favorable discontinuation outcomes compared to the total population. CONCLUSION: This study describes real-world use of LDp/CDp in patients with aPD demonstrating that a stable infusion rate was achieved within 5.4 days and provides initial observations on effectiveness. Data completeness varied substantially across variables due to the non-mandatory nature of data collection within the PSP and variable follow up duration. Ongoing efforts to improve data completeness and standardization will support future analyses and enhance understanding of real-world use of LDp/CDp and patient's experience. CLINICAL TRIAL REGISTRATION: The study is registered on ClinicalTrials.gov under NCT06937034.