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A randomized comparative feasibility study of neuromodulation and cognitive training for post-COVID fatigue
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A randomized comparative feasibility study of neuromodulation and cognitive training for post-COVID fatigue
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Journal Article
A randomized comparative feasibility study of neuromodulation and cognitive training for post-COVID fatigue
2025
Overview
Fatigue and cognitive deficits are common and disabling symptoms in patients experiencing post-COVID condition. This randomized parallel study aimed to evaluate the effects of transcranial direct current stimulation (tDCS) over the primary motor cortex combined with cognitive training (M1 + CT), compared to tDCS over the dorsolateral prefrontal cortex with cognitive training (DLPFC + CT), on fatigue, cognition, and other clinical symptoms in post-COVID. Sixty-three patients completed the treatment (n = 32 in the M1 + CT group and n = 31 in the DLPFC + CT group) with a mean age of 47 years and an average symptom duration of 32 months. Both groups underwent comprehensive neuropsychological and clinical evaluations, including ecological momentary assessments of fatigue, at baseline, post-treatment, and one-month follow-up. The Fatigue Severity Scale (FSS) was used as the primary endpoint. Patients were randomly assigned to the M1 + CT or DLPFC + CT groups and received 15 sessions of tDCS administered concurrently with adaptive CT. The M1 + CT group showed a slightly higher efficacy in reducing fatigue and improving sleep quality than the DLPFC + CT group. Both groups demonstrated significant improvements in cognition, anxiety, depression, pain, and sleep quality. These improvements were sustained over time. These findings indicate that tDCS combined with cognitive training is a feasible, safe, and effective approach for reducing fatigue and enhancing cognition in post-COVID patients. The results highlight the potential of brain stimulation and cognitive training to alleviate fatigue and cognitive impairment in post-COVID, warranting further confirmation through additional randomized controlled trials.
Trial registration:
ClinicalTrials.gov
NCT05753202.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ Adult
/ Cognitive Behavioral Therapy - methods
/ COVID-19
/ Dorsolateral Prefrontal Cortex
/ Electrical stimulation of the brain
/ ESB
/ Fatigue
/ Female
/ Humanities and Social Sciences
/ Humans
/ Male
/ Motor Cortex - physiopathology
/ Patients
/ Science
/ Sleep
/ tDCS
/ Training
