NCT02112812

Brief Summary

A higher prevalence of Helicobacter pylori infection rate has been demonstrated among PD patients compared to controls. As H. pylori infection is known to interfere with levodopa absorption, we embarked on this is a study to understand the effects of Helicobacter pylori infection eradication among a selected Malaysian population with Parkinsons disease, in relation to levodopa effectiveness and motor improvements. The study hypotheses are:

  1. 1.H. pylori eradication improves L-dopa 'onset' time and prolongs the L-dopa 'on-time' duration.
  2. 2.PD patients with H. pylori infection show clinical improvement in motor disability and quality of life after eradication therapy of H. pylori, assessed using UPDRS-III / PDQ39 questionnaires.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
82

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2012

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2012

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2013

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2013

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

April 10, 2014

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 14, 2014

Completed
Last Updated

April 14, 2014

Status Verified

April 1, 2014

Enrollment Period

3 months

First QC Date

April 10, 2014

Last Update Submit

April 10, 2014

Conditions

Keywords

Parkinsons diseaseHelicobacter pyloriEradicationLevodopa responseMotor outcomesQuality of LifeOpen label

Outcome Measures

Primary Outcomes (2)

  • 1. H. pylori eradication improves L-dopa 'onset' time and prolongs the L-dopa 'on-time' duration.

    This was measured by asking the patient to determine the time taken to experience on from the time of ingestion of levodopa and to determine the duration of time that they are ON, while receiving levodopa. The patients are asked to keep a diary if possible. If not, the patients are asked during their visits, baseline visit, visit 1, visit 2 and visit 3

    3months

  • Improvement in L-dopa 'onset' time and L-dopa 'on-time' duration following H.pylori eradication

    Patients are followed up every 4 weeks, for 12 weeks ( 3 visits). The levodopa onset time is calculated based on the time taken to achieve on following levodopa ingestion, while the ON-time duration is the time the patient remains on following levodopa ingestion. Patients are asked to keep a diary, if possible.

    3 months post eradication

Secondary Outcomes (1)

  • Improvement in motor disability after eradication therapy of H. pylori, assessed using UPDRS-III , and improvement in quality of life using PDQ39

    3 months post eradication

Study Arms (1)

Eradication therapy

EXPERIMENTAL

The patients who were positive for H.pylori infection are entered into an eradication therapy protocol which includes oral esomeprazole 40mg daily, oral clarithromycin 500mg bd and oral amoxicillin 1000mg bd for 14 days.

Drug: Eradication therapy for H.pylori infectionDrug: Eradication of Helcobacter PyloriDrug: Eradication therapy for Helicobacter pylori

Interventions

Patients who were positive for H.pylori infection received an eradication therapy consisting of oral esomeprazole 40 md daily, oral clarithromycin 500mg bd and oral amoxicillin 1000mg bd for 14 days.

Eradication therapy

Patients who are positive on urea breath test are given eradication therapy for 14 days, Eradication therapy includes esomeprazole 40mg daily, clarithromycin 500mg bd, amoxicillin 1g bd

Eradication therapy

Eligibility Criteria

Age17 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of idiopathic Parkinson's disease (PD) by a neurologist
  • Age more than 18 years
  • Written informed consent given either by the patient or next of kin
  • Patient on L-DOPA therapy

You may not qualify if:

  • Patients with a diagnosis of secondary parkinsonism, and Parkinson's plus syndrome
  • History of recent proton pump inhibitors (PPIs) or Histamine (H2) antagonist use for at least 4 weeks prior to the urea breath test
  • History of recent antibiotics use (less than 6 months)
  • Inability to perform urea breath test

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UKM Medical Center

Cheras, Kuala Lumpur, 56000, Malaysia

Location

Related Publications (1)

  • Hashim H, Azmin S, Razlan H, Yahya NW, Tan HJ, Manaf MR, Ibrahim NM. Eradication of Helicobacter pylori infection improves levodopa action, clinical symptoms and quality of life in patients with Parkinson's disease. PLoS One. 2014 Nov 20;9(11):e112330. doi: 10.1371/journal.pone.0112330. eCollection 2014.

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Norlinah Mohamed Ibrahim, MBBCH, MRCP

    Department of Medicine, Faculty of Medicine, National University of Malaysia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof Datin

Study Record Dates

First Submitted

April 10, 2014

First Posted

April 14, 2014

Study Start

December 1, 2012

Primary Completion

March 1, 2013

Study Completion

April 1, 2013

Last Updated

April 14, 2014

Record last verified: 2014-04

Locations