Evidence map›Paper›PMID 32298376›Full record

ArticlePloS one2020

Pharmacological and pharmacokinetic profile of the novel ocular hypotensive prodrug CKLP1 in Dutch-belted pigmented rabbits.

Uttio Roy Chowdhury, Rachel A Kudgus, Tommy A Rinkoski, Bradley H Holman, Cindy K Bahler, Cheryl R Hann, Joel M Reid, Peter I Dosa, Michael P Fautsch

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

10 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Evaluation of Pregabalin bioadhesive multilayered microemulsion IOP-lowering eye drops.Journal of controlled release : official journal of the Controlled Release Society · 2024
    Article
  5. KThe Journal of pharmacology and experimental therapeutics · 2023
    Article
  6. Preclinical Pharmacokinetic Profile of Topical Ophthalmic and Intravenous Delivery of QLS-101, a Novel ATP-Sensitive Potassium Channel Opening Ocular Hypotensive Agent.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Pharmacological Profile and Ocular Hypotensive Effects of Cromakalim Prodrug 1, a Novel ATP-Sensitive Potassium Channel Opener, in Normotensive Dogs and Nonhuman Primates.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2021
    Article
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 2 institutions in 1 country.

Uttio Roy ChowdhuryDepartment of Ophthalmology, Mayo Clinic, Rochester, MN, United States of America.
Rachel A KudgusDepartment of Oncology Research, Mayo Clinic, Rochester, MN, United States of America.
Tommy A RinkoskiDepartment of Ophthalmology, Mayo Clinic, Rochester, MN, United States of America.
Bradley H HolmanDepartment of Ophthalmology, Mayo Clinic, Rochester, MN, United States of America.
Cindy K BahlerDepartment of Ophthalmology, Mayo Clinic, Rochester, MN, United States of America.
Cheryl R HannDepartment of Ophthalmology, Mayo Clinic, Rochester, MN, United States of America.
Joel M ReidDepartment of Oncology Research, Mayo Clinic, Rochester, MN, United States of America.
Peter I DosaDepartment of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, University of Minnesota, Minneapolis, MN, United States of America.
Michael P FautschDepartment of Ophthalmology, Mayo Clinic, Rochester, MN, United States of America.ORCID 0000-0002-9115-2485
Mayo Clinic in Florida · USUniversity of Minnesota · US

Funding

University of Minnesota Clinical and Translational Science Institute (UMN CTSI)UL1TR000114 · NCATS · UNIVERSITY OF MINNESOTA · PI BLAZAR, BRUCE R · 2012 to 2015
$35.0M
Intraocular pressure regulation via ATP-sensitive potassium channelsR01EY021727 · NEI · MAYO CLINIC ROCHESTER · PI FAUTSCH, MICHAEL P. · 2011 to 2021
$4.1M
Pathogenesis of age-related Fuchs Endothelial Corneal DystrophyR01EY026490 · NEI · MAYO CLINIC ROCHESTER · PI FAUTSCH, MICHAEL P., GOTTESFELD, JOEL M. · 2016 to 2019
$2.0M
Object ConceptsR01EY021717 · NEI · UNIVERSITY OF PENNSYLVANIA · PI THOMPSONSCHILL, SHARON L · 2011 to 2014
$1.6M
NCATS NIH HHS UL1 TR000114NEI NIH HHS R01 EY021717NEI NIH HHS R01 EY021727NEI NIH HHS R01 EY026490
6 · The paper itself

Abstract

Elevated intraocular pressure is the only treatable risk factor for glaucoma, an eye disease that is the leading cause of irreversible blindness worldwide. We have identified cromakalim prodrug 1 (CKLP1), a novel water-soluble ATP-sensitive potassium channel opener, as a new ocular hypotensive agent. To evaluate the pharmacokinetic and safety profile of CKLP1 and its parent compound levcromakalim, Dutch-belted pigmented rabbits were treated intravenously (0.25 mg/kg) or topically (10 mM; 4.1 mg/ml) with CKLP1. Body fluids (blood, aqueous and vitreous humor) were collected at multiple time points and evaluated for the presence of CKLP1 and levcromakalim using a liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) based assay. Histology of tissues isolated from Dutch-belted pigmented rabbits treated once daily for 90 days was evaluated in a masked manner by a certified veterinary pathologist. The estimated plasma parameters following intravenous administration of 0.25 mg/kg of CKLP1 showed CKLP1 had a terminal half-life of 61.8 ± 55.2 min, Tmax of 19.8 ± 23.0 min and Cmax of 1968.5 ± 831.0 ng/ml. Levcromakalim had a plasma terminal half-life of 85.0 ± 37.0 min, Tmax of 61.0 ± 32.0 min and Cmax of 10.6 ± 1.2 ng/ml. Topical CKLP1 treatment in the eye showed low levels (<0.3 ng/mL) of levcromakalim in aqueous and vitreous humor, and trace amounts of CKLP1 and levcromakalim in the plasma. No observable histological changes were noted in selected tissues that were examined following topical application of CKLP1 for 90 consecutive days. These results suggest that CKPL1 is converted to levcromakalim in the eye and likely to some extent in the systemic circulation.

Indexed as

Administration, IntravenousAdministration, TopicalAnimalsAqueous HumorChromatography, LiquidCorneaCromakalimEyeFemaleMass SpectrometryProdrugsRabbitsVitreous BodyCromakalimProdrugs

Identifiers

PMID32298376
PMCPMC7162492
OpenAlexW3016888476

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.