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Impact of C-Mill Rehabilitation on the Gut-Brain Axis in Parkinson's Disease

Gut-Brain Axis and Rehabilitation: Study on the Effects of C-Mill Technology on the Intestinal Microbiota of Parkinson's Disease Patients

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07434089
Enrollment
60
Registered
2026-02-25
Start date
2025-10-20
Completion date
2028-10-20
Last updated
2026-02-25

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

Conditions

Parkinson Disease

Brief summary

The GM-REHAB-2025 study aims to evaluate the impact of physiotherapy interventions using the C-Mill treadmill, with and without semi-immersive virtual reality, on gut microbiota and metabolic parameters in patients with Parkinson's disease. Three groups will be involved: one undergoing conventional physiotherapy, one treated with the C-Mill without virtual reality (VR), and one treated with C-Mill technology combined with VR. Clinical assessments and the collection of biological samples (stool, serum, and plasma) will be carried out at three time points: at baseline, at the end of treatment (21 days), and after 3 months.

Interventions

DEVICEC-Mill technology treadmill equipped with semi-immersive VR

C-Mill treatment combined with semi-immersive virtual reality (VR). The VR component will feature visual obstacles, such as virtual traffic cones or country paths, in conjunction with audio-visual stimuli to promote engagement and guide movement.

DEVICEC-Mill treatment without semi-immersive virtual reality (VR)

C-Mill treatment will be administrated as a standalone therapy, without the integration of virtual reality (VR).

OTHERConventional physiotherapy training

Will be carried under the manual guidance and supervision of a physiotherapist. The rehabilitation program will include weight-shifting exercises, as well as monopodal and bipodal balance exercises.

Sponsors

IRCCS Centro Neurolesi Bonino Pulejo
Lead SponsorOTHER
Università degli studi di Messina
CollaboratorUNKNOWN

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
40 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of PD according to the Movement Disorder Society Clinical * Diagnostic Criteria for Parkinson's Disease * Age comprised between 40 to 70 years * Patients with moderate to advanced disease (2 ≤ Hoehn and Yahr classification grade ≤ 4) * Individuals able to walk independently (FAC \> 2)

Exclusion criteria

* PD patients with (1) weight \> 135 kg and Height \> 200 cm * Open lesions or bandages whether in contact with the harness of C-Mill strumentation * chronic gastro-intestinal (GI) disease including malabsorption; * clinical history of gastric lesions, gastro-resection or major intestinal surgery; * systemic and/or neurologic infectious, inflammatory, or autoimmune diseases of gastro-intestinal (GI) eg. Chron disease; * Acute GI phlogosis or GI disease in the last 4 weeks before recruitment; * Use of domperidone, or any drug potentially affecting gastrointestinal motility and integrity; * Use, in the last 4 weeks preceding the recruitment and until t2, of pre-probiotics or therapy based upon steroids, nonsteroidal anti-inflammatory drugs, antibiotics or antifungals; * anamnesis suggestive of GI cancer pathology.

Design outcomes

Primary

MeasureTime frameDescription
Relative abundance of bacterial and fungal taxa in fecal samplesFrom enrollment to the 3 months follow-upRelative abundance of bacterial and fungal taxa determined by sequencing the V3-V4 regions of the 16S rRNA and ITS1-IT2 regions from fecal samples. Unit of measurement: percentage of total sequencing reads(%).
Alpha Diversity of the Gut MicrobiotaFrom enrollment to the 3 months follow-upWithin-sample microbial diversity derived from sequencing of the V3-V4 regions of the 16S rRNA gene and ITS1-ITS2 regions from fecal samples, expressed as an alpha diversity index. Unit of Measure: alpha diversity index value. Higher values indicate greater microbial diversity.
Beta Diversity of the Gut MicrobiotaFrom enrollment to the 3 months follow-upBetween-sample microbial community derived from the sequencing of V3-V4 regions of the 16S rRNA and ITS1-ITS2 and expressed as a beta diversity distance. Unit of Measure: beta diversity distance. Higher values indicate greater dissimilarity between samples.
Distance Covered During the 6-Minute Walk TestFrom enrollment to the 3 months follow-upFunctional walking capacity measured as the total distance walked during the 6-Minute Walk Test. Unit of Measure: meters. Higher values indicate better walking capacity.
Time Required to Complete the 10-Meter Walk TestFrom enrollment to the 3 months follow-upWalking ability assessed by measuring the time required to walk 10 meters at usual pace. Unit of Measure: seconds. Lower values indicate better walking performance.
Time Required to Complete the Timed Up and Go TestFrom enrollment to the 3 months follow-upMobility and fall risk assessed by the time needed to stand up, walk 3 meters, turn, return, and sit down. Unit of Measure: seconds. Lower values indicate better functional mobility.
Balance Performance Assessed by the Berg Balance ScaleFrom enrollment to the 3 months follow-upBalance measured using the Berg Balance Scale (range: 0-56). Higher scores indicate better balance and lower fall risk. Unit of Measure: total score.
Balance and Gait Performance Assessed by the Tinetti ScaleFrom enrollment to the 3 months follow-upBalance and gait evaluated using the Tinetti Scale (range: 0-29). Higher scores indicate better mobility and lower fall risk. Unit of Measure: total score.
Fear of Falling Assessed by the Short Falls Efficacy Scale-InternationalFrom enrollment to the 3 months follow-upConcern about falling measured using the Short Falls Efficacy Scale-International (range: 7-28). Higher scores indicate greater fear of falling. Unit of Measure: total score.
Motor Symptom Severity Assessed by the MDS-UPDRS Part III (Motor Examination)From enrollment to the 3 months follow-upMotor impairment evaluated using the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III, the Motor Examination section. Total score range from 0 to 132. Unit of Measure: total score. Higher scores indicate worse motor impairment.
Functional Independence Assessed by the Functional Independence MeasureFrom enrollment to the 3 months follow-upGlobal functional status assessed using the Functional Independence Measure (range: 18-126). Higher scores indicate greater independence in daily activities. Unit of Measure: total score.
Severity of Constipation Assessed by the Constipation Scoring SystemFrom enrollment to the 3 months follow-upConstipation severity measured using the Constipation Scoring System questionnaire (range: 0-30). Higher scores indicate more severe constipation. Unit of Measure: total score.

Secondary

MeasureTime frameDescription
Serum Concentration of TNF-αFrom enrollment to the 3 months follow-upSerum TNF-α, a key pro-inflammatory cytokine, measured by ELISA to assess systemic inflammatory activation. Unit of Measure: pg/mL
Serum Concentration of IL-1βFrom enrollment to the 3 months follow-upSerum IL-1β, a pro-inflammatory cytokine involved in immune response, measured by ELISA. Unit of Measure: pg/mL
Serum Concentration of IL-6From enrollment to the 3 months follow-upSerum IL-6, a pro-inflammatory cytokine that mediates systemic inflammation, measured by ELISA. Unit of Measure: pg/mL
Serum Concentration of IL-10From enrollment to the 3 months follow-upSerum IL-10, an anti-inflammatory cytokine that regulates immune responses, measured by ELISA. Unit of Measure: pg/mL
Serum Concentration of IL-4From enrollment to the 3 months follow-upSerum IL-4, an anti-inflammatory cytokine involved in immune modulation, measured by ELISA. Unit of Measure: pg/mL
Serum Concentration of FNDC5From enrollment to the 3 months follow-upSerum FNDC5, a metabolic peptide measured by ELISA. Unit of Measure: ng/mL
Serum Concentration of AdiponectinFrom enrollment to the 3 months follow-upSerum Adiponectin, a metabolic peptide measured by ELISA. Unit of Measure: ng/mL
Serum Concentration of Reduced GlutathioneFrom enrollment to the 3 months follow-upSerum Reduced Glutathione (GSH), a key antioxidant reflecting oxidative stress status, measured by ELISA. Unit of Measure: µmol/L
Serum Concentration of Oxidized GlutathioneFrom enrollment to the 3 months follow-upSerum Oxidized Glutathione (GSSG), the oxidized form of glutathione indicating oxidative stress, measured by ELISA. Unit of Measure: µmol/L
Serum Concentration of High-Sensitivity C-Reactive ProteinFrom enrollment to the 3 months follow-upSerum High-Sensitivity C-Reactive Protein (hs-CRP), an acute-phase protein reflecting systemic inflammation, measured by ELISA. Unit of Measure: mg/L

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026