Evidence map›Paper›PMID 29777529›Full record

Trial reportClinical pharmacokinetics2019

Pharmacokinetics of ADS-5102 (Amantadine) Extended Release Capsules Administered Once Daily at Bedtime for the Treatment of Dyskinesia.

Robert A Hauser, Rajesh Pahwa, William A Wargin, Cindy J Souza-Prien, Natalie McClure, Reed Johnson, Jack T Nguyen, Rajiv Patni, Gregory T Went

Open access · hybridAbstract readClinical Trial, Phase IClinical Trial, Phase IIClinical Trial, Phase III
In one paragraph

Trial report in Clinical pharmacokinetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.8field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 44 citations in OpenAlex.

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  12. Antiviral Drugs in Influenza.International journal of environmental research and public health · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Robert A HauserUSF Parkinson's Disease and Movement Disorders Center, Parkinson Foundation Center of Excellence, USF Health Byrd Institute, 4001 E. Fletcher Ave, 6th Floor, Tampa, FL, 33613, USA. rhauser@health.usf.edu.
Rajesh PahwaDepartment of Neurology, University of Kansas Medical Center, 3599 Rainbow Boulevard, Mailstop 3042, Kansas City, KS, 66160, USA.
William A WarginNuventra Pharma Sciences, 2525 Meridian Parkway, Suite 280, Durham, NC, 27713, USA.
Cindy J Souza-PrienAdamas Pharmaceuticals, Inc, 1900 Powell Street, Suite 750, Emeryville, CA, 94608, USA.
Natalie McClureAdamas Pharmaceuticals, Inc, 1900 Powell Street, Suite 750, Emeryville, CA, 94608, USA.
Reed JohnsonAdamas Pharmaceuticals, Inc, 1900 Powell Street, Suite 750, Emeryville, CA, 94608, USA.
Jack T NguyenAdamas Pharmaceuticals, Inc, 1900 Powell Street, Suite 750, Emeryville, CA, 94608, USA.
Rajiv PatniAdamas Pharmaceuticals, Inc, 1900 Powell Street, Suite 750, Emeryville, CA, 94608, USA. rpatni@adamaspharma.com.
Gregory T WentAdamas Pharmaceuticals, Inc, 1900 Powell Street, Suite 750, Emeryville, CA, 94608, USA.
Adamas Pharmaceuticals (United States) · USFoundation Center · USUniversity of Kansas Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreclinical and clinical studies suggest amantadine immediate-release (IR) may reduce dyskinesia in Parkinson's disease (PD), although higher doses are associated with increased CNS adverse events (AEs). ADS-5102 is an extended release amantadine capsule formulation, designed for once-daily dosing at bedtime (qhs) to provide high concentrations upon waking and throughout the day, with lower concentrations in the evening. The pharmacokinetics (PK) of ADS-5102 were assessed in two phase I studies in healthy subjects, and a blinded, randomized phase II/III dose-finding study in PD patients.

methodsThe first phase I study assessed single ADS-5102 doses (68.5, 137, and 274 mg) in a crossover design, whereas the second phase I study evaluated ADS-5102 137 mg for 7 days followed by amantadine IR 81 mg twice daily (or reverse order). In the phase II/III double-blind study, PD patients with dyskinesia were randomized to ADS-5102 (210, 274, or 338 mg) or placebo for 8 weeks.

resultsSingle ADS-5102 doses resulted in a slow initial rise in amantadine plasma concentration, with delayed time to maximum concentration (12-16 h). Amantadine plasma concentrations were higher in PD patients versus healthy volunteers. The steady-state profile of once-daily ADS-5102 was significantly different from that of twice-daily amantadine IR, such that the two formulations are not bioequivalent. PK modeling suggested the recommended daily ADS-5102 dosage (274 mg qhs) resulted in 1.4- to 2.0-fold higher amantadine plasma concentrations during the day versus amantadine IR.

conclusionsADS-5102 can be administered once-daily qhs to achieve high amantadine plasma concentrations in the morning and throughout the day, when symptoms of dyskinesia occur.

Indexed as

AdolescentAdultAgedAged, 80 and overAmantadineAntiparkinson AgentsCross-Over StudiesDelayed-Action PreparationsDouble-Blind MethodDrug Administration ScheduleDyskinesiasFemaleHumansMaleMiddle AgedParkinson DiseaseAmantadineAntiparkinson AgentsDelayed-Action Preparations

Identifiers

PMID29777529
PMCPMC6325984
OpenAlexW2804952730

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.