Evidence map›Paper›PMID 26626430›Full record

Trial reportClinical neuropharmacology

Clinical Pharmacokinetics of IPX066: Evaluation of Dose Proportionality and Effect of Food in Healthy Volunteers.

Hsuan-Ming Yao, Ann Hsu, Suneel Gupta, Nishit B Modi

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Clinical neuropharmacology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Medical Management and Prevention of Motor Complications in Parkinson's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2020
    Review
  5. Review
  6. Review
  7. Review
  8. Extended-release oral capsule of carbidopa-levodopa in Parkinson disease.Therapeutic advances in neurological disorders · 2018
    Review
  9. Article
  10. Pharmacokinetics of RytaryClinical pharmacokinetics · 2017
    Review
  11. Review
  12. Review
  13. Review
  14. Review
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

4 authors.

Hsuan-Ming YaoImpax Specialty Pharma, a Division of Impax Laboratories, Inc, Hayward, CA.
Ann Hsu
Suneel Gupta
Nishit B Modi

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesIPX066 is an oral, extended-release capsule formulation of carbidopa-levodopa (CD-LD) available in 4 strengths. The goals of this investigation were to assess the dose proportionality of IPX066 and to study the effects of a high-fat, high-calorie meal and of sprinkling the capsule contents on applesauce on the pharmacokinetics of IPX066 in healthy volunteers.

methodsThree open-label studies were conducted. In the first study, subjects received 1 capsule of each IPX066 strength (23.75-95, 36.25-145, 48.75-195, and 61.25-245 mg of CD-LD). In the second study, subjects received 1 and 2 capsules of IPX066 245-mg LD under fasting conditions. In the third study, subjects received 2 capsules of IPX066 245-mg LD under 3 conditions: fasting; following a high-fat, high-calorie breakfast; and with the capsule contents sprinkled on applesauce under fasting conditions.

resultsPeak plasma concentrations (Cmax) and systemic exposure (AUCt, AUCinf) for LD and CD increased dose-proportionally over the range of the IPX066 capsule strengths. Comparison of 1 and 2 IPX066 245-mg LD capsules showed dose-proportional pharmacokinetics for Cmax and AUCt. Sprinkling the capsule contents on applesauce did not affect the pharmacokinetics. A high-fat, high-calorie meal delayed the initial increase in LD concentration by approximately 1 to 2 hours, reduced Cmax by 21%, and increased AUCinf by 13% compared with the fasted state.

conclusionsIPX066 shows dose-proportional pharmacokinetics. Sprinkling the capsule contents on applesauce does not affect the pharmacokinetics; a high-fat, high-calorie meal delayed absorption by 1 to 2 hours, slightly reduced Cmax, and slightly increased extent of absorption.

Indexed as

AdolescentAdultAntiparkinson AgentsArea Under CurveCarbidopaCross-Over StudiesDose-Response Relationship, DrugDrug CombinationsElectrocardiographyFastingFemaleHealthy VolunteersHeart RateHumansJoint Capsule ReleaseLevodopaAntiparkinson AgentsCarbidopacarbidopa, levodopa drug combinationDrug CombinationsLevodopa

Identifiers

PMID26626430
PMCPMC4714633

What OpenQuestion holds

Textmetadata
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.