Exendin-4 as a Treatment for Parkinson's Disease - Pilot Study

NCT01174810 | Unknown Phase 2

• 2 other identifiers: 09/03912009-018137-37
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

Exenatide is a licensed, safe and effective treatment for patients with Diabetes mellitus. Laboratory work has shown strong, reproducible evidence that this drug has beneficial "disease modifying" effects when given to animals with a range of experimental models of Parkinson's disease (PD). This project aims to make an initial evaluation of possible benefits of Exenatide among patients with moderate symptoms of PD. The drug will be given as a twice daily 10microgram injection under the skin in a similar way to one of the conventional "symptomatic" treatments for PD (Apomorphine). Forty patients with moderate symptoms of PD will be recruited and randomised to receive Exenatide injections twice daily, or to act as controls in this open label trial. Detailed assessments will be made of all patients at baseline and periodically for a total of 14 months. The primary outcome measure will be the change between baseline and follow up, in the severity of a validated PD assessment scale (the UPDRS part 3 motor score) after an overnight period free of conventional PD medication. Secondary measures will include adverse event reports, self completed questionnaires, and blood test results. Aside from these assessments, all patients will continue their regular PD medications throughout the trial with adjustments made only according to clinical need. In a subgroup of patients (n=10), brain scans that assess the severity of PD, will be performed at both baseline and follow up to help understand possible mechanisms of action of Exenatide.

Conditions

Parkinson's Disease

Keywords

Parkinson's Disease; PD; Moderate Parkinson's Disease

Outcome Measures

Primary Outcomes (1)

• Change from baseline to 12 months & 14 months between patients on active Exenatide treatment and PD controls in respect of their UPDRS-off-medication motor subscore.

Secondary Outcomes (1)

• Adverse event profile among patients treated with Exenatide compared with matched PD controls. Change from baseline to 12 months/ 14 months between patients on active treatment and PD controls in respect of list given below

Study Arms (2)

Control

NO INTERVENTION

Exenatide

EXPERIMENTAL

Drug: Exenatide

Interventions

Exenatide DRUG

Exenatide, 5 micrograms twice a day for 1 month and 10 micrograms twice a day for 11 months. Total duration of treatment 12 months

Also known as: Byetta, Exendin-4

Exenatide

Eligibility Criteria

• Age: 45 Years - 70 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Diagnosis of Idiopathic Parkinson's disease of moderate severity- equivalent to Hoehn/ Yahr stage 2 to 2.5 (Bilateral symptoms but still physically independent).
• Male or female. Female patients to be post menopausal (defined as 12 months of spontaneous amenorrhoea or 6 months spontaneous amenorrhoea with FSH levels greater than 40mIU/ml), surgically sterilised (post hysterectomy and/or oophorectomy). Male patients with female partners that have child bearing potential must use adequate contraception (condoms +/-spermicidal gel/foam) throughout the duration of the trial period.
• Age 45-70 years
• Disease onset after age 40 years
• Disease duration \> 5 years
• On L-dopa treatment. Patient must be on oral L-dopa treatment - with or without dopamine agonist including Apomorphine, MAO-B inhibitor, COMT inhibitor, Amantadine, Beta blocker, anticholinergic treatment History of wearing off phenomena- duration of action of single dose of L-dopa \< 6 hours Stable PD medication for preceding 3 months- i.e. no change in medication type or dose.
• UPDRS motor off medication score \>15
• L-dopa responsiveness. Defined as \>33% improvement in UPDRS motor off medication score following L-dopa challenge
• Able to give informed consent
• Able to comply with trial protocol and willing to attend necessary clinic visits off medication.

You may not qualify if:

• Diagnosis or suspicion of other cause for parkinsonism including Vascular parkinsonism, post traumatic parkinsonism, drug or toxin induced parkinsonism, or other neurodegenerative condition including Multiple System Atrophy, Progressive Supranuclear Palsy, Huntington's disease, Wilson's disease, Pantothenate kinase Neurodegeneration (PKAN), Alzheimer's disease, Creutzfeld Jacob disease.
• Known abnormality on CT or MRI brain imaging considered to be causing symptoms or signs of neurological dysfunction, or considered likely to compromise compliance with trial protocol.
• Concurrent dementia defined by a score lower than 120 on the Mattis Dementia Rating Scale.
• Concurrent severe depression defined by a score greater than 16 on the MADRS Exposure to neuroleptic drugs within 6 months prior to baseline assessment Prior intracerebral surgical intervention for Parkinson's disease including Deep Brain stimulation, lesional surgery, growth factor administration, gene therapy or cell transplant
• Already actively participating in a trial of a device, drug or surgical treatment for Parkinson's disease, or trial participation within previous 30 days.
• Type 1 Diabetes mellitus
• Type 2 Diabetes mellitus on insulin treatment
• End stage renal disease or severely impaired renal function with creatinine clearance \<30ml/min
• History of severe cardiac disease (Angina, Myocardial infarction or cardiac surgery in preceding 2 years)
• History of pancreatitis
• History of alcoholism
• Severe gastrointestinal disease including gastroparesis
• Ongoing treatment with sulphonylurea
• Females that are pregnant or breast feeding or of child bearing potential.

Sponsors & Collaborators

• University College, London: lead

Study Sites (1)

National Hospital for Neurology and Neurosurgery

London, WC1E 3BG, United Kingdom

Location

Related Publications (1)

• Aviles-Olmos I, Dickson J, Kefalopoulou Z, Djamshidian A, Ell P, Soderlund T, Whitton P, Wyse R, Isaacs T, Lees A, Limousin P, Foltynie T. Exenatide and the treatment of patients with Parkinson's disease. J Clin Invest. 2013 Jun;123(6):2730-6. doi: 10.1172/JCI68295.

  PMID: 23728174 DERIVED

MeSH Terms

Conditions

Parkinson Disease

Interventions

Exenatide

Condition Hierarchy (Ancestors)

Parkinsonian Disorders; Basal Ganglia Diseases; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Movement Disorders; Synucleinopathies; Neurodegenerative Diseases

Intervention Hierarchy (Ancestors)

Peptides; Amino Acids, Peptides, and Proteins; Venoms; Complex Mixtures; Toxins, Biological; Biological Factors

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: August 2, 2010
• First Posted: August 4, 2010
• Study Start: July 1, 2010
• Primary Completion: March 1, 2013
• Study Completion: March 1, 2013
• Last Updated: March 23, 2012

Record last verified: 2012-03

Locations

GB (1)