NCT06977204

Brief Summary

Parkinson's Disease (PD) is a chronic progressive neurodegenerative disorder clinically defined by the association of resting tremor, rigidity, bradykinesia, and postural instability. The histopathology of PD is characterized by the loss of neurons in the substantia nigra pars compacta (SNPc) and the accumulation of α-synuclein aggregates within Lewy bodies. The pathogenic mechanisms underlying the development of the disease, however, are not yet fully understood: genetics, cellular oxidative stress, mitochondrial dysfunction, environmental factors, and neuroinflammation are all potential mechanisms involved in the pathogenesis of PD. Several studies have now established the involvement of neuroinflammation in the pathogenesis of PD. It is known that α-synuclein aggregates stimulate microglia and astroglia to secrete pro-inflammatory mediators such as IL 1β, IL6, and TNFα. These molecules activate an inflammatory response characterized by altered blood-brain barrier permeability, leukocyte recruitment, and the expression of other pro-inflammatory cytokines. These events contribute to exposing neurons to oxidative stress and cellular damage. Additionally, cellular damage induces neurons to stimulate the release of DAMPs (Damage Associated Molecular Patterns), which in turn activate glial cells. This creates a state of chronic inflammation that could play a role in the progression of the disease. Supporting this hypothesis, elevated levels of IL1β, IL6, and TNFα have been found in the striatum and SNPc of post-mortem PD samples. The transcription factor Nrf2 is one of the main regulators of cellular protection in response to stress (inflammation, redox, xenobiotics). Nrf2 promotes the expression of several genes that cooperate in a cytoprotective response, which includes antioxidant defense, resolution of inflammation, increased mitochondrial activity, and protein turnover. Recent clinical studies seem to confirm the hypothesis that Nrf2 plays a role in the pathogenesis of PD, as already suggested by preclinical models. Specifically, altered plasma levels of the Nrf2-activated pathway have been observed in preclinical models. Studies conducted on animal models of PD have hypothesized how exercise might correlate with protective mechanisms and might promote neuroplasticity and neuro-regeneration, especially when practiced at high intensity. Physical exercise can indeed modulate various systems (including inflammatory pathways and oxidative stress) that regulate neuroinflammation and glial activation. However, the available results are not definitive and often focus on single and separate aspects of the disease. The aim of the study is to investigate the beneficial effect of physical exercise in patients with Parkinson's Disease (PD). Literature already suggests an improvement in various domains of motor and non-motor aspects, as well as in the overall quality of life, of PD patients even after a period of aerobic activity. Generally, training periods included 3-4 sessions per week of 40-60 minutes each for 4-16 weeks. In general, the literature describes the effects of moderate physical training, while little or nothing is known about how PD is affected by high-intensity sports training. The primary objective of our study is to compare a group of PD patients undergoing regular and constant intense exercise (PD-sport) with a control group consisting of PD patients leading a sedentary life (PD-sedentary). The primary outcome will be the difference in systemic inflammatory status between the PD-sport group and the PD-sedentary group.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
1mo left

Started Jan 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress98%
Jan 2023Jun 2026

Study Start

First participant enrolled

January 1, 2023

Completed
2.3 years until next milestone

First Submitted

Initial submission to the registry

April 28, 2025

Completed
20 days until next milestone

First Posted

Study publicly available on registry

May 18, 2025

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Expected
Last Updated

May 18, 2025

Status Verified

May 1, 2025

Enrollment Period

3 years

First QC Date

April 28, 2025

Last Update Submit

May 14, 2025

Conditions

Keywords

Physical activityNeurological disorderNeuroinflammation

Outcome Measures

Primary Outcomes (1)

  • Set of serum pro-inflammatory and anti-inflammatory cytokines

    the investigators will dose a set of of pro-inflammatory and anti-inflammatory cytokines in the serum, namely interleukin 1β (IL-1β), interleukin 2 (IL-2), interleukin 4 (IL-4), interleukin 6 (IL-6), interleukin 10 (IL-10), interleukin 12 (IL-12), tumor necrosis factor alpha (TNF-alpha), and interferon (IFN).

    Single evaluation at baseline

Secondary Outcomes (14)

  • Time Up and Go test

    Single evaluation at baseline

  • Inertial Gait Analysis

    Single evaluation at baseline

  • Inertial Gait Analysis

    Single evaluation at baseline

  • 5 Sit to Stand Test

    Single evaluation at baseline

  • Hand Grip Test

    Single evaluation at baseline

  • +9 more secondary outcomes

Study Arms (2)

PD-SPORT

In PD-SPORT group the investigators aim to enroll subjects affected by Parkinson's Disease who regularly performed intensive physical activity. For the purpose of this study, the intensive physical activity is defined by the International Physical Activity questionnaire (IPAQ).

PD-SEDENTARY

In PD-SEDENTARY group the investigators aim to enroll subjects affected by Parkinson's Disease who did not regularly performed intensive physical activity. For the purpose of this study, the intensive of physical activity is defined by the International Physical Activity questionnaire (IPAQ).

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The study population consists of individuals diagnosed with Parkinson's disease, but without other clinically relevant medical conditions. PD-sport group: this population will include a group of PD subjects who regularly performed a high-intensity and regular physical activity (based on IPAQ questionnaire). PD-sedentary group: this population will include a group of PD subjects who did not regularly performed regular physical activity (based on IPAQ questionnaire). The absence of other pathological and voluptuary condition is intended to reduce to possible biases of confounders on the inflammatory status.

You may qualify if:

  • Subjects of both sexes, aged between 40 and 80 years (extremes included)
  • Diagnosis of Parkinson's disease according to the clinical diagnostic criteria of the Movement Disorder Society
  • Hoehn \& Yahr between 1 and 3

You may not qualify if:

  • Concomitant diagnosis of other neurological diseases
  • Presence of confirmed cognitive decline (MMSE \< 24)
  • Presence of depression with (BDI \> 40)
  • Patients with deep brain stimulation implant or undergoing DuoDopa therapy
  • Presence of significant diseases affecting the musculoskeletal system
  • Presence of internal medicine conditions, considered clinically significant by the investigator
  • Acute or recent infections
  • Body Mass Index (BMI) \>= 30
  • Active smoking behavior
  • Ongoing treatment with N-acetylcysteine or anti-oxidants
  • Pregnancy or lactation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

IRCCS Mondino Foundation

Pavia, Pavia, 27100, Italy

RECRUITING

Related Publications (3)

  • Szymura J, Kubica J, Wiecek M, Pera J. The Immunomodulary Effects of Systematic Exercise in Older Adults and People with Parkinson's Disease. J Clin Med. 2020 Jan 9;9(1):184. doi: 10.3390/jcm9010184.

    PMID: 31936624BACKGROUND
  • Xu J, He X, Xu Y, Chen X, Li M, Zhang L, Fu X, Pan M, Wang Q, Hu X. Characteristics of systemic inflammation and brain iron deposition in Parkinson's disease patients. Ann Clin Transl Neurol. 2022 Mar;9(3):276-285. doi: 10.1002/acn3.51512. Epub 2022 Jan 25.

    PMID: 35078271BACKGROUND
  • Pajares M, I Rojo A, Manda G, Bosca L, Cuadrado A. Inflammation in Parkinson's Disease: Mechanisms and Therapeutic Implications. Cells. 2020 Jul 14;9(7):1687. doi: 10.3390/cells9071687.

    PMID: 32674367BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

Venous blood samples from the anticubital vein.

MeSH Terms

Conditions

Parkinson DiseaseSedentary BehaviorMotor ActivityNervous System DiseasesNeuroinflammatory Diseases

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesBehaviorInflammationPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 28, 2025

First Posted

May 18, 2025

Study Start

January 1, 2023

Primary Completion

December 31, 2025

Study Completion (Estimated)

June 1, 2026

Last Updated

May 18, 2025

Record last verified: 2025-05

Locations