Research Article

Collective Expert Perspectives on the Use of Safinamide as Adjunctive Therapy for Parkinson’s Disease: Online-Based Delphi Survey

Table 1

Consensus of clinically important indicators or methods for the use of safinamide in each scenario.

RankCases or methods that achieved consensus agreement ((%) of agreement)

Optimal patient profiles: selection of safinamide based on history of receiving other MAO-B inhibitors (Q4)
1Can become a treatment option in MAO-B inhibitor-naïve patients (97.8%)
2Can become a treatment option in patients in whom the efficacy of other MAO-B inhibitors was not sufficient in the past (95.7%)
3Can become a treatment option in patients who previously experienced adverse events related to other MAO-B inhibitors (91.3%)

Treatment methods: patients for whom safinamide should be administered after carefully balancing risks and benefits of treatment (Q7)
1Experienced hallucinations or drug-induced hallucinations (93.5%)
2Concerns of impulse control disorder (87.0%)
3High blood pressure variability (82.6%)

Treatment methods: cases in which dose increase to 100 mg/day is recommended (Q10)
1Insufficient improvement of symptoms and difficulty in dose increase of other medication (97.8%)
2Insufficient effect of another MAO-B inhibitor at the approved dose (97.8%)
3Non-motor symptoms that affect daily life (93.5%)

Treatment methods: cases in which dose reduction or discontinuation is required (Q11)
1No improvement in symptoms (97.8%)
2Occurrence of adverse reactions (hallucination, sleepiness, orthostatic hypotension) (95.7%)
3Requirement for use of anti-depressants (95.7%)

Treatment methods: safinamide use in elderly (aged ≥ 75 years) patients with Parkinson’s disease (Q8)
1Adopt the same usage and cautions as in non-elderly patients (100.0%)
2Be careful of the occurrence of psychiatric symptoms, hallucination, or visual hallucination (97.8%)
3Confirm the degree of hepatic toxicity (95.7%)
4Dose increase is possible if there is no concern of tolerability (95.7%)
5Initial dose should be 50 mg/day (93.5%)

Only cases that met consensus (≥80%) were extracted. MAO: monoamine oxidase.