Interventions for fatigue in Parkinson's disease

Area of Science:

• Neurology
• Clinical Trials
• Systematic Reviews

Background:

• Subjective fatigue is a common and poorly understood symptom in Parkinson's disease (PD).
• Effective management of fatigue in PD is hindered by a lack of knowledge regarding its contributing factors.

Purpose of the Study:

• To systematically evaluate the efficacy of pharmacological and non-pharmacological interventions for subjective fatigue in people with PD.
• To compare these interventions against inactive control groups.

Main Methods:

• A comprehensive literature search was conducted across multiple databases (CENTRAL, MEDLINE, EMBASE, CINAHL, PsycINFO, PEDro, WHO ICTRP).
• Randomized controlled trials (RCTs) reporting on subjective fatigue in PD patients were included.
• Study selection, data collection, and risk of bias assessments were performed independently by two reviewers.

Main Results:

• High-quality evidence indicates rasagiline effectively reduces physical aspects of fatigue in PD.
• Levodopa-carbidopa showed an increased risk of nausea; other medications (memantine, caffeine, methylphenidate, modafinil, doxepin) showed no significant effect on subjective fatigue.
• Low-quality evidence suggests exercise may reduce the impact of fatigue, but further research is needed.

Conclusions:

• Current evidence does not allow for definitive treatment recommendations for subjective fatigue in PD.
• Rasagiline may benefit physical fatigue, and doxepin warrants further investigation for its impact on daily activities.
• Future research should explore exercise intensity, behavioral/cognitive aspects of fatigue, and standardized outcome measures.