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Parkinson's Disease (Disorder)PSYCHOSTIMNCT04608123

Effect of Deep Brain Stimulation on Neuropsychiatric Fluctuations in Patients With Parkinson's Disease

An observational study of Parkinson's Disease (Disorder), run by University Hospital, Grenoble at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Retrospective, monocentric, observational study designed to evaluate the effects of Bilateral Subthalamic Nucleus Deep Brain Stimulation (DBS STN) on Neuropsychiatric fluctuations in Patients with Parkinson's Disease (PD) Read more about this study

Who is it for?
Any age
Conditions the study is for
Parkinson's Disease (Disorder)
What is being tested?
none (observational study)
How many people
31 participants
Where
1 siteFrance
Study dates
1 May 2020to 21 Jul 2020
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Child, Adult, Older adult

Study population: PD patients treated with DBS STN at Grenoble Hospital within September 2016 and June 2019

Who may be able to join

  • Parkinson's disease
  • Treatment with Bilateral STN DBS
  • Evaluation with NFS in both preoperative and 12 months post-surgery follow-up context

Who cannot join

  • DBS for non PD patients
  • Unilateral DBS or other DBS targets
  • Patients not evaluated with NFS
  • Patients with incomplete preoperative evaluation
  • Patients who refused the use of their data

Trial locations and contacts

1 site in 1 country.

France1 site
  • University Hospital, Grenoble

    Grenoble, Isère, 38000

Other trials in France

About this study

Official title: Effect of Bilateral Subthalamic Nucleus Deep Brain Stimulation on Neuropsychiatric Fluctuations in Patients With Parkinson's Disease, Evaluated With a New, Dedicated Scale

Retrospective, monocentric, observational study designed to evaluate the effects of Bilateral Subthalamic Nucleus Deep Brain Stimulation (DBS STN) on Neuropsychiatric fluctuations in Patients with Parkinson's Disease (PD)

Read the detailed description

Pre-operative versus 12-Month Follow-Up analysis of changing in Neuropsychiatric Fluctuations Scale (NFS) score in preoperative versus postoperative MED OFF (during acute withdrawal of dopaminergic therapy) and MED ON (during super-liminal Levodopa dose) conditions. Postoperative evaluations are always performed with DBS turned on and stimulating (STIM ON)

Being tested
none (observational study)
Keywords
DBS, Deep Brain Stimulation, Neuropsychiatric Fluctuations, Nonmotor Fluctuations, Scale
Medical subject headings
Parkinson Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • none (observational study)Other

    DBS

Study groups in NCT04608123
Study groupRoleWhat they receive
DBS Patients with NFSPatients with PD treated with STN DBS between 2016 and 2019 who underwent NFS testing in pre and post-op conditions
Receives: Other: none (observational study)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Effectiveness of DBS for Neuropsychiatric Fluctuations

    Improvement of Neuropsychiatric Fluctuation Scale (NFS) Score between preoperative MED ON and MED OFF conditions versus postoperative MED ON-STIM ON and MED OFF-STIM ON conditions. NFS ON and OFF med scores are independent and they ranges from -30 to +30. Positive scores represent good outcomes (good feelings, non OFF neuropsychiatric symptoms), whereas negative scores denote the presence of negative feelings in a quantity exceeding the positive ones

    Measured: 12 months after surgery

Secondary outcomes (5)
  1. Preoperative and Postoperative demographical and clinical factors linked to a post-surgical change in Neuropsychiatric Fluctuations

    Changing in pre-post op NFS scores correlated with:

    • Demographic and Clinical data: age, sex, disease duration, side onset, clinical phenotype, years passed with fluctuations, comorbidities, psychiatric history not linked to the disease or its treatment, psychiatric complications of dopaminergic therapy
    • Dopaminergic treatment data: years of therapy with Levodopa, percentage of motor improvement with Levodopa-test, pre and postoperative LEDD, changing in psychiatric treatment (doses and number of medications)
    • Perioperative variables: type of anaesthesia, perioperative complications
    • DBS parameters: stimulation type, plots selected, amplitude, rate, duration of impulse, stereo tactical coordinates of electrodes, stimulator type (rechargeable, not rechargeable)

    Measured: 12 months

  2. Neuropsychiatric Fluctuations, Cognitive and Psychiatric state

    Changing in pre-postop NFS scores correlated with:

    • Cognitive evaluation scales (Mattis Scale, Score Frontal, Wisconsin Card Sorting Test - WCST, Luria manual sequencing task)
    • Psychiatric evaluation scales (Beck Depression Scale - BDI-II, Evaluation Comportamentale dans la Maladie de Parkinson - ECMP, Starkstein Apathy Scale)

    Measured: 12 months

  3. Neuropsychiatric Fluctuations, preoperative and postoperative motor status

    Changing in pre-postop NFS scores correlated with:

    • Preoperative UPDRS III Score (total score, sub scores of tremor, rigidity, akinesia, parole, posture-gait-instability) in MED ON and MED OFF conditions
    • Changing in UPDRS III Scores (total and sub scores) in preoperative MED ON and MED OFF conditions versus postoperative MED ON STIM ON and MED OFF STIM ON conditions

    Measured: 12 months

  4. Neuropsychiatric Fluctuations and other Nonmotor Symptoms

    Changing in pre-postop NFS scores correlated with:

    • Changing in MDS-UPDRS scores and sub scores (total, section I, section II, section IV)

    Measured: 12 months

  5. Neuropsychiatric Fluctuations and Dopaminergic Therapy

    Changing in pre-postop NFS scores correlated with:

    • Preoperative versus postoperative Levodopa equivalent dose (LEDD)

    Measured: 12 Months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Oct 2020
  2. Study start1 May 2020
  3. Primary completion21 Jul 2020
  4. Study completion21 Jul 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04608123
Sponsor's protocol ID
0
Acronym
PSYCHOSTIM
Status last verified
Jul 2020
First submitted
22 Oct 2020
Last updated
2 Nov 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Schmitt E, Krack P, Castrioto A, Klinger H, Bichon A, Lhommee E, Pelissier P, Fraix V, Thobois S, Moro E, Martinez-Martin P. The Neuropsychiatric Fluctuations Scale for Parkinson's Disease: A Pilot Study. Mov Disord Clin Pract. 2018 Mar 23;5(3):265-272. doi: 10.1002/mdc3.12607. eCollection 2018 May-Jun.

    PubMed 30363450
  • Abbes M, Lhommee E, Thobois S, Klinger H, Schmitt E, Bichon A, Castrioto A, Xie J, Fraix V, Kistner A, Pelissier P, Seigneuret E, Chabardes S, Mertens P, Broussolle E, Moro E, Krack P. Subthalamic stimulation and neuropsychiatric symptoms in Parkinson's disease: results from a long-term follow-up cohort study. J Neurol Neurosurg Psychiatry. 2018 Aug;89(8):836-843. doi: 10.1136/jnnp-2017-316373. Epub 2018 Feb 7.

    PubMed 29436490
  • Hogg E, Wertheimer J, Graner S, Tagliati M. Deep Brain Stimulation and Nonmotor Symptoms. Int Rev Neurobiol. 2017;134:1045-1089. doi: 10.1016/bs.irn.2017.05.022. Epub 2017 Jul 3.

    PubMed 28805564
  • Kurtis MM, Rajah T, Delgado LF, Dafsari HS. The effect of deep brain stimulation on the non-motor symptoms of Parkinson's disease: a critical review of the current evidence. NPJ Parkinsons Dis. 2017 Jan 12;3:16024. doi: 10.1038/npjparkd.2016.24. eCollection 2017.

    PubMed 28725706
  • Azulay JP, Witjas T, Eusebio A. Effect of subthalamic deep brain stimulation on non-motor fluctuations in Parkinson's disease. J Neural Transm (Vienna). 2013 Apr;120(4):655-7. doi: 10.1007/s00702-012-0958-9. Epub 2012 Dec 23.

    PubMed 23263599

Questions about this trial

What is this clinical trial studying?

An observational study of Parkinson's Disease (Disorder), run by University Hospital, Grenoble at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Effectiveness of DBS for Neuropsychiatric Fluctuations (time frame: 12 months after surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04608123, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Nov 2020.

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