Study Stopped
Prevalence of H Pylori in the study population was much lower than anticipated
Treating H. Pylori in Parkinson's Patients With Motor Fluctuations
Helicobacter Pylori Eradication and Motor Fluctuations in Parkinson's Disease
2 other identifiers
interventional
64
1 country
1
Brief Summary
The purpose of this study is to determine whether treatment of H. pylori (an infection of the stomach) improves treatment effectiveness in patients with Parkinson's disease and motor fluctuations.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Jan 2008
Typical duration for phase_3
1 active site
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
January 1, 2008
CompletedFirst Submitted
Initial submission to the registry
April 21, 2008
CompletedFirst Posted
Study publicly available on registry
April 22, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2012
CompletedResults Posted
Study results publicly available
December 2, 2017
CompletedDecember 2, 2017
October 1, 2017
3.4 years
April 21, 2008
October 31, 2017
October 31, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
"Off" Time
Average total daily "off" time (measured by patient symptom diaries) in hours
2 months
Secondary Outcomes (4)
Improvement in UPDRS Total Scores
2 months
Improvement in UDPRS Part III
2 months
Improvement in Quality of Life as Assessed by PDQ-39
2 months
Participants With Side Effects From Study Treatment
2 months
Study Arms (2)
Active-placebo
OTHERThese subject receive treatment with active triple therapy followed by treatment with placebo therapy.
Placebo-active
OTHERThese subject receive treatment with placebo therapy followed by treatment with active triple therapy.
Interventions
clarithromycin 500mg - i PO BID x10 days; amoxicillin 1gm - i PO BID x10 days; omeprazole 10mg - i PO BID x10 days
Eligibility Criteria
You may qualify if:
- Adults diagnosed with idiopathic Parkinson's disease, Hoehn \& Yahr stage 2-4 in the "off" state, with no other concomitant neurologic diseases.
- Stable (≥30 days) Parkinson's disease therapy, with demonstrable medication efficacy, but with wearing off phenomenon present between levodopa doses (average off time ≥3 hours off time/day).
- Levodopa therapy required; Any formulation (e.g. Sinemet, Sinemet CR, Stalevo) is acceptable. Parkinson's disease treatment may also include any of the following medications or classes: non-ergot dopamine agonists, COMT inhibitors, MAO-B inhibitors, amantadine, anticholinergics.
You may not qualify if:
- Current abdominal pain, unexplained nausea/vomiting, or gastrointestinal bleeding.
- History of gastric cancer, peptic ulcer, duodenal ulcer, or other gastric or duodenal lesions.
- History of previous gastric surgery.
- History of previous brain surgery for Parkinson's disease.
- Family history of gastric cancer.
- Prior treatment for H. pylori+ status.
- Recent use (previous 4 weeks) of proton-pump inhibitor, amoxicillin, or clarithromycin.
- Allergy or sensitivity to penicillin, amoxicillin, clarithromycin, or omeprazole.
- Use of drugs affecting gastric motility (e.g. domperidone, metoclopramide).
- Inability to tolerate or participate in testing in the morning in an "off" state.
- Inability to communicate effectively with study personnel in English.
- Pregnancy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
UCLA Neurology
Los Angeles, California, 90095, United States
Related Publications (5)
Belhoussine-Idrissi L, Boedeker EC. Helicobacter pylori infection: treatment. Curr Opin Gastroenterol. 2002 Jan;18(1):26-33. doi: 10.1097/00001574-200201000-00005.
PMID: 17031226BACKGROUNDPierantozzi M, Pietroiusti A, Brusa L, Galati S, Stefani A, Lunardi G, Fedele E, Sancesario G, Bernardi G, Bergamaschi A, Magrini A, Stanzione P, Galante A. Helicobacter pylori eradication and l-dopa absorption in patients with PD and motor fluctuations. Neurology. 2006 Jun 27;66(12):1824-9. doi: 10.1212/01.wnl.0000221672.01272.ba.
PMID: 16801644BACKGROUNDPierantozzi M, Pietroiusti A, Galante A, Sancesario G, Lunardi G, Fedele E, Giacomini P, Stanzione P. Helicobacter pylori-induced reduction of acute levodopa absorption in Parkinson's disease patients. Ann Neurol. 2001 Nov;50(5):686-7. doi: 10.1002/ana.1267. No abstract available.
PMID: 11706979BACKGROUNDPierantozzi M, Pietroiusti A, Sancesario G, Lunardi G, Fedele E, Giacomini P, Frasca S, Galante A, Marciani MG, Stanzione P. Reduced L-dopa absorption and increased clinical fluctuations in Helicobacter pylori-infected Parkinson's disease patients. Neurol Sci. 2001 Feb;22(1):89-91. doi: 10.1007/s100720170061.
PMID: 11487216BACKGROUNDWolle K, Malfertheiner P. Treatment of Helicobacter pylori. Best Pract Res Clin Gastroenterol. 2007;21(2):315-24. doi: 10.1016/j.bpg.2006.11.001.
PMID: 17382279BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
Screening yield was much lower than anticipated based on the literature which prohibited completion of the study
Results Point of Contact
- Title
- Jeff Bronstein MD, PhD
- Organization
- UCaliforniaLA
Study Officials
- PRINCIPAL INVESTIGATOR
Jeff M Bronstein, MD, PhD
UCLA Neurology
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Neurology
Study Record Dates
First Submitted
April 21, 2008
First Posted
April 22, 2008
Study Start
January 1, 2008
Primary Completion
June 1, 2011
Study Completion
June 1, 2012
Last Updated
December 2, 2017
Results First Posted
December 2, 2017
Record last verified: 2017-10