NCT00664209

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

57
Monitor

Trial Health Score

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

Enrollment
64

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Jan 2008

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
terminated

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

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

April 21, 2008

Completed
1 day until next milestone

First Posted

Study publicly available on registry

April 22, 2008

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2011

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2012

Completed
5.5 years until next milestone

Results Posted

Study results publicly available

December 2, 2017

Completed
Last Updated

December 2, 2017

Status Verified

October 1, 2017

Enrollment Period

3.4 years

First QC Date

April 21, 2008

Results QC Date

October 31, 2017

Last Update Submit

October 31, 2017

Conditions

Keywords

Parkinson's diseaselevodopaHelicobacter pylori

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

OTHER

These subject receive treatment with active triple therapy followed by treatment with placebo therapy.

Drug: clartihromycin, amoxicillin, and omeprazoleDrug: placebo

Placebo-active

OTHER

These subject receive treatment with placebo therapy followed by treatment with active triple therapy.

Drug: clartihromycin, amoxicillin, and omeprazoleDrug: placebo

Interventions

clarithromycin 500mg - i PO BID x10 days; amoxicillin 1gm - i PO BID x10 days; omeprazole 10mg - i PO BID x10 days

Also known as: Biaxin, Prilosec
Active-placeboPlacebo-active

placebo therapy

Active-placeboPlacebo-active

Eligibility Criteria

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

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

Location

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: 17031226BACKGROUND
  • Pierantozzi 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: 16801644BACKGROUND
  • Pierantozzi 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: 11706979BACKGROUND
  • Pierantozzi 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: 11487216BACKGROUND
  • Wolle 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

Parkinson DiseaseHelicobacter Infections

Interventions

AmoxicillinOmeprazoleClarithromycin

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Intervention Hierarchy (Ancestors)

AmpicillinPenicillin GPenicillinsbeta-LactamsLactamsAmidesOrganic ChemicalsSulfur CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds2-PyridinylmethylsulfinylbenzimidazolesSulfoxidesPyridinesHeterocyclic Compounds, 1-RingBenzimidazolesErythromycinMacrolidesPolyketidesLactones

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

  • Jeff M Bronstein, MD, PhD

    UCLA Neurology

    PRINCIPAL INVESTIGATOR

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

Locations