Skip to content

Parkinson’s Disease: PET scan and evaluation of memantines pharmacological effect. (Parkinsons sygdom bedømt med PET skanning, herunder memantins farmakologiske effekt.) - N/A

Parkinson’s Disease: PET scan and evaluation of memantines pharmacological effect. (Parkinsons sygdom bedømt med PET skanning, herunder memantins farmakologiske effekt.) - N/A

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2004-004139-74-DK
Enrollment
12
Registered
2005-03-22
Start date
2005-04-20
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

Parkinson's Disease

Interventions

Trade Name: Ebixa Product Name: Ebixa Pharmaceutical Form: Tablet INN or Proposed INN: memantine Concentration unit: mg/g milligram(s)/gram Concentration type: equal Concentration number: 10 mg-

Sponsors

Neurologisk afdeling F
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients: 1) Idiopathic Parkinson's Disease (ICD-10: G20.9) 2) Age 50-70 Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Patients: 1) Any current use of tobacco substances containing nicotine. 2) Conditions prohibiting MR scan (implanted pacemaker, protheses etc.) 3) Brain diseases apart from Parkinson's Disease (Aneurisms, AV-malformations, stroke, cranial trauma, dementia etc.) 4) Psychiatric disorders (Schizophrenia, bi-polar mood disorder, depression) 5) Other major diseases (heartfailure, arhytmias, infarcts, kidney failure, liver failure, cirrhosis, active hepatitis, portal hypertension etc.) 6) Current use of drugs with major influence on CNS (eg. amphetamine, metamphetamine, cocaine, opioids, antipsychotics, antiepileptics, NMDA-antagonists) 7) Current use of the anti-parkinsonian drugs Cabergolin and Amantadine. 8) Pregnancy

Design outcomes

Primary

MeasureTime frame
Primary end point(s): Using PET tracers (15O Oxygen, 15O H2O, F-DOPA) we wish to evaluate the changes in: 1) Regional oxidative metabolism (rCMRO2) in cortex and basal ganglia before and after trial of Memantine. 2) Regional cerebral blood flow (rCBF) before and after trial of Memantine. 3) Dopamine metabolism before and after trial of Memantine.;Main Objective: To elucidate Memantines actions in brain of patients with Parkinson's disease. Administer MEMANTINE for 6 weeks (3 weeks uptitration to final dose of 2x10 mg daily to be administered in week 4, 5 and 6) to patients with Parkinson's Disease. Using PET methodology we wish to evaluate changes in: 1) Regional cerebral cortical oxidative metabolism (rCMRO2) before and after trial of Memantine. 2) Regional basal ganglia oxidative metabolism (rCMRO2) before and after trial of Memantine. 3) Regional cerebral blood flow (rCBF) before and after trial of Memantine. 4) Dopamine metabolism before and after trial of Memantine.;Secondary Objective: UPDRS score improvements in patients with Parkinson's Disease after 6 weeks treatment with memantine.

Countries

Denmark

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026