Clinical trial Recruiting at 1 site Interventional Ages 18 to 75

Exploring brain metabolism in early Parkinson's disease using advanced MRI techniques

Official title: Exploration of Differences in Metabolite Concentrations by 7Teslas NMR Spectroscopy in Striatum and Subthalamic Nuclei in de Novo Parkinsonian Patients and Control Subjects

Run by University Hospital, Clermont-Ferrand · NCT04735172 · Data updated 2026-11-12

This study is testing how brain chemistry changes in people who have just been diagnosed with Parkinson's disease compared to healthy individuals using advanced MRI technology.

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment44 (estimated)
SponsorUniversity Hospital, Clermont-Ferrand
Academic / other
Locations2 sites (Clermont-Ferrand and 1 other locations)
StatusRecruiting
StartedApril 7, 2022
Main results expectedAugust 2029
Study endsAugust 2029
Registry record updatedFebruary 27, 2026
Trial IDNCT04735172 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include treatment-naïve individuals aged 18 to 75 diagnosed with idiopathic Parkinson's disease at stages I-II.

Probably not a fit

Patients with severe tremors or contraindications for MRI examinations will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the differences in metabolite concentrations in the striatum and subthalamic nuclei of treatment-naïve patients with de novo Parkinson's disease compared to healthy controls using 7 Tesla Nuclear Magnetic Resonance Spectroscopy. It is a cross-sectional, open-label study where participants will undergo a single visit for assessments including motor disorder evaluations and MRI scans. The study aims to enhance understanding of the neurochemical changes associated with early Parkinson's disease and their potential implications for treatment.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic and therapeutic strategies for patients with Parkinson's disease.

How similar studies have gone: While studies using advanced MRI techniques in Parkinson's disease have shown promise, this specific approach utilizing 7 Tesla NMR spectroscopy is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients will be included:

* suffering from idiopathic Parkinson's disease according to UKPDSBB criteria (Gibb \& Lees, 1988; Hughes et al., 1992),
* the stage of the disease is I-II according to the Hoehn and Yahr scale,
* which do not receive dopaminergic treatment,
* duration of disease development 5 years,
* without major cognitive impairment (Moca \> 24)
* men or women aged 18 to 75,
* having understood and signed the informed consent form,
* members of a social security scheme.

Controls:

* subjects male or female aged 18 -75 years
* subjects affiliated to a social security scheme.
* volunteers who have given their written consent.

Exclusion Criteria:

Patients will be excluded:

* having a severe tremor (\> 3 for a trembling sub-item of UPDRS 3) making the MR examination impossible,
* patients with "contra-indications" to an MRI exam (without administration of a gadolinium chelate): presence of metal parts in the body (electronic devices such as a pacemaker, a neurostimulator, a cochlear implant, prostheses, etc.), claustrophobia,
* taking any treatment that may interact with brain concentrations of neurotransmitters, such as all psychotropic drugs and in particular antidepressants, neuroleptics, benzodiazepines, antiepileptics,
* pregnant women,
* treated by deep brain neurostimulation,
* patients under guardianship or guardianship or protection of justice,
* patients who are excluded from another study.

Controls:

* persons suffering from progressive neurological and psychiatric pathology,
* persons with "contra-indications" to an MRI examination (without administration of a gadolinium chelate): presence of metal parts in the body (electronic devices such as a pacemaker, a neurostimulator, a cochlear implant, prostheses, etc.), claustrophobia,
* taking any treatment that may interact with brain concentrations of neurotransmitters, such as: all psychotropic drugs and in particular antidepressants, neuroleptics, benzodiazepines, antiepileptics,
* pregnant women,
* persons under guardianship or trusteeship or protection of justice,
* people who are excluded from another study.

Where it's running

  • CHU Poitiers
    Poitiers, France
    Recruiting
  • Chu Clermont Ferrand
    Clermont-Ferrand, France
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.