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Benefit of increasing Levodopa in the treatment of musculoskeletal pain in Parkinson’s disease

Efficacy of Additional Dopaminergic Replacement Therapy on Nociceptive Pain in Patients with Parkinson’s Disease: A Prospective Randomized Controlled Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
REBEC
Registry ID
RBR-103bk9wn
Enrollment
90
Registered
2026-06-03
Start date
2025-08-01
Completion date
Unknown
Last updated
2026-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson Disease

Interventions

This is a randomized, double-blind, placebo-controlled clinical trial. Participants will be randomized to receive either additional dopaminergic replacement therapy (DRT group) or placebo tablets (pla

Sponsors

Centro de Dor do Departamento de Neurologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
Lead Sponsor
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
Collaborator

Eligibility

Age
18 Years to 85 Years

Inclusion criteria

Inclusion criteria: Non-pregnant men and women aged between 18 and 85 years; idiopathic Parkinson’s disease; chronic nociceptive pain as defined by the Parkinson’s Disease Pain Classification System (PD-PCS); chronic pain of at least moderate intensity defined as a score equal to or greater than 4 on a 0–10 visual analog pain scale; capable of providing informed consent in accordance with current institutional policies

Exclusion criteria

Exclusion criteria: Patients with unstable psychiatric comorbidities; musculoskeletal pain intensity lower than 4 on a 0–10 visual analog scale; inability to provide free and informed consent; presence of uncontrolled active infection or severe decompensated clinical conditions; uncontrolled diabetes mellitus; uncontrolled systemic arterial hypertension; symptomatic pulmonary or cardiac diseases; concurrent participation in other clinical trials; and women who are pregnant or breastfeeding.

Design outcomes

Primary

MeasureTime frame
Proportion of individuals presenting with 50% or more reduction in the average pain intensity, assessed by the verbal numeric pain rating scale (Brief Pain Inventory item 5) at the end of two-week follow-up period, when compared to baseline values.

Secondary

MeasureTime frame
The total score of the Parkinson's Disease Pain Classification System (PD-PCS) at the end of the 2-week follow-up period.;The scores of the Brief Pain Inventory at the end of the two-week follow-up period.;The score of the PDQ-8 (8-item Parkinson's Disease Questionnaire) at the end of the 2-week follow-up period.;The total score of The Hospital Anxiety and Depression Scale (HADS), as well as of its anxiety and depression subscales, at the end of the 2-week follow-up period.;The score of the Clinical Global Impression of Change scale at the end of the 2-week follow-up period.;The scores of the Patient Global Impression of Change scale at the end of the 2-week follow-up period.;The score of the MDS-UPDRS (Movement Disorders Society - Unified Parkinson's Disease Rating Scale) Part III scale at the end of the end of the 2-week follow-up period.

Countries

BR

Contacts

Public ContactGabriel Kubota

Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo

gabriel.kubota@hc.fm.usp.br+55 (11) 2661-7585

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Jun 29, 2026