Extended Release Amantadine Safety and Efficacy Study in Levodopa-Induced Dyskinesia (EASED Study)

NCT ID: NCT01397422

Last Updated: 2017-12-13

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

83 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-07-31

Study Completion Date

2013-10-31

Brief Summary

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This is a multi-center, randomized, double-blind, placebo-controlled, 4-arm parallel group study to evaluate the tolerability and efficacy of each of three dose levels of ADS-5102 oral capsules, an extended release formulation of amantadine, dosed once daily for the treatment of levodopa-induced dyskinesia (LID) in subjects with Parkinson's disease (PD). The novel pharmacokinetic profile of ADS-5102 is expected to achieve i) higher amantadine plasma concentrations during daytime hours when dyskinesia as well as motor and non-motor symptoms of PD are most problematic, ii) low amantadine plasma concentrations overnight, which may reduce the sleep disturbances and vivid dreams occasionally associated with amantadine, and iii) a reduced initial rate of rise in plasma concentration, which is expected to improve overall tolerability of amantadine.

Detailed Description

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Conditions

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Dyskinesia Levodopa Induced Dyskinesia Parkinson's Disease

Keywords

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Levodopa-induced dyskinesia Parkinsonism

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Treatment C

A mid-dose ADS-5102 (amantadine extended release)

Group Type ACTIVE_COMPARATOR

ADS-5102 (extended release amantadine HCl)

Intervention Type DRUG

Oral capsules to be administered once daily at bedtime, for 8 weeks

Treatment D

High dose ADS-5102 (amantadine extended release)

Group Type ACTIVE_COMPARATOR

ADS-5102 (extended release amantadine HCl)

Intervention Type DRUG

Oral capsules to be administered once daily at bedtime, for 8 weeks

Treatment A

Group Type PLACEBO_COMPARATOR

ADS-5102 (extended release amantadine HCl)

Intervention Type DRUG

Oral capsules to be administered once daily at bedtime, for 8 weeks

Treatment B

Low dose ADS-5102 (amantadine extended release)

Group Type ACTIVE_COMPARATOR

ADS-5102 (extended release amantadine HCl)

Intervention Type DRUG

Oral capsules to be administered once daily at bedtime, for 8 weeks

Interventions

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ADS-5102 (extended release amantadine HCl)

Oral capsules to be administered once daily at bedtime, for 8 weeks

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Signed a current IRB/IEC-approved informed consent form
* Parkinson's disease, per UK Parkinson's Disease Society (UKPDS) Brain Bank Clinical Diagnostic Criteria
* On a stable regimen of antiparkinson's medications , including any levodopa preparation administered not less than three times daily, and willing to continue the same doses and regimens during study participation
* Experiencing troublesome dyskinesia following levodopa dosing (peak dose dyskinesia)
* Able to understand and complete a standardized PD home diary, following training

Exclusion Criteria

* History of neurosurgical intervention related to Parkinson's disease (e.g. deep brain stimulation)
* History of seizures or stroke/TIA within 2 years of screening
* History of cancer within 5 years of screening, except adequately treated non-melanomatous skin cancers, localized bladder cancer, non-metastatic prostate cancer or in situ cervical cancer
* Estimated GFR \< 50 mL/min/1.73m2
* Presence of cognitive impairment, as evidenced by a Mini-Mental Status Examination (MMSE) score of less than 24 during screening
* If female, is pregnant or lactating, or has a positive pregnancy test result pre-dose
* If a sexually active female, is not surgically sterile or at least 2 years post-menopausal, or does not agree to utilize an effective method of contraception from screening through at least 4 weeks after the completion of study treatment
* Treatment with an investigational drug or device within 30 days prior to screening
* Treatment with an investigational biologic within 6 months prior to screening
Minimum Eligible Age

30 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Adamas Pharmaceuticals, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials Director

Role: STUDY_DIRECTOR

Adamas Pharmaceuticals, Inc.

Locations

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Sun City, Arizona, United States

Site Status

Fountain Valley, California, United States

Site Status

Long Beach, California, United States

Site Status

Los Angeles, California, United States

Site Status

Oxnard, California, United States

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Pasadena, California, United States

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Reseda, California, United States

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Sunnyvale, California, United States

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Ventura, California, United States

Site Status

Fairfield, Connecticut, United States

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Boca Raton, Florida, United States

Site Status

Bradenton, Florida, United States

Site Status

Port Charlotte, Florida, United States

Site Status

Tampa, Florida, United States

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Atlanta, Georgia, United States

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Augusta, Georgia, United States

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Chicago, Illinois, United States

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Winfield, Illinois, United States

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Des Moines, Iowa, United States

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Kansas City, Kansas, United States

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Boston, Massachusetts, United States

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West Bloomfield, Michigan, United States

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Toms River, New Jersey, United States

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New York, New York, United States

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Durham, North Carolina, United States

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Raleigh, North Carolina, United States

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Toledo, Ohio, United States

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Tulsa, Oklahoma, United States

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Houston, Texas, United States

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San Antonio, Texas, United States

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Richmond, Virginia, United States

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Kirkland, Washington, United States

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Milwaukee, Wisconsin, United States

Site Status

Countries

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United States

Other Identifiers

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ADS-PAR-AM201

Identifier Type: -

Identifier Source: org_study_id