Evidence map›Paper›PMID 29114841›Full record

ArticleInvestigative ophthalmology & visual science2017

Effect of Cromakalim Prodrug 1 (CKLP1) on Aqueous Humor Dynamics and Feasibility of Combination Therapy With Existing Ocular Hypotensive Agents.

Uttio Roy Chowdhury, Tommy A Rinkoski, Cindy K Bahler, J Cameron Millar, Jacques A Bertrand, Bradley H Holman, Joseph M Sherwood, Darryl R Overby, Kristen L Stoltz, Peter I Dosa and 1 more

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Human Anterior Segment Perfusion Organ Culture.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  4. KThe Journal of pharmacology and experimental therapeutics · 2023
    Article
  5. 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
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. 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
  14. Vascular Aspects in Glaucoma: From Pathogenesis to Therapeutic Approaches.International journal of molecular sciences · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Pharmacological regulation of outflow resistance distal to Schlemm's canal.American journal of physiology. Cell physiology · 2018
    Article
  19. 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

11 authors at 4 institutions in 2 countries.

Uttio Roy ChowdhuryDepartment of Ophthalmology, Mayo Clinic, Rochester, Minnesota, United States.
Tommy A RinkoskiDepartment of Ophthalmology, Mayo Clinic, Rochester, Minnesota, United States.
Cindy K BahlerDepartment of Ophthalmology, Mayo Clinic, Rochester, Minnesota, United States.
J Cameron MillarNorth Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States.
Jacques A BertrandDepartment of Bioengineering, Imperial College London, London, United Kingdom.
Bradley H HolmanDepartment of Ophthalmology, Mayo Clinic, Rochester, Minnesota, United States.
Joseph M SherwoodDepartment of Bioengineering, Imperial College London, London, United Kingdom.
Darryl R OverbyDepartment of Bioengineering, Imperial College London, London, United Kingdom.
Kristen L StoltzInstitute for Therapeutics Discovery and Development, Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota, United States.
Peter I DosaInstitute for Therapeutics Discovery and Development, Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota, United States.
Michael P FautschDepartment of Ophthalmology, Mayo Clinic, Rochester, Minnesota, United States.
Mayo Clinic · USImperial College London · GBUniversity of Minnesota · USUniversity of North Texas · 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
eNOS-Dependent Mechanoregulation of Intraocular PressureR01EY022359 · NEI · DUKE UNIVERSITY · PI STAMER, W DANIEL · 2012 to 2025
$5.6M
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
NCATS NIH HHS UL1 TR000114NEI NIH HHS R01 EY021727NEI NIH HHS R01 EY022359NEI NIH HHS R01 EY026490
6 · The paper itself

Abstract

Purpose: Cromakalim prodrug 1 (CKLP1) is a water-soluble ATP-sensitive potassium channel opener that has shown ocular hypotensive properties in ex vivo and in vivo experimental models. To determine its mechanism of action, we assessed the effect of CKLP1 on aqueous humor dynamics and in combination therapy with existing ocular hypotensive agents. Methods: Outflow facility was assessed in C57BL/6 mice by ex vivo eye perfusions and by in vivo constant flow infusion following CKLP1 treatment. Human anterior segments with no trabecular meshwork were evaluated for effect on pressure following CKLP1 treatment. CKLP1 alone and in combination with latanoprost, timolol, and Rho kinase inhibitor Y27632 were evaluated for effect on intraocular pressure in C57BL/6 mice and Dutch-belted pigmented rabbits. Results: CKLP1 lowered episcleral venous pressure (control: 8.9 ± 0.1 mm Hg versus treated: 6.2 ± 0.1 mm Hg, P < 0.0001) but had no detectable effect on outflow facility, aqueous humor flow rate, or uveoscleral outflow. Treatment with CKLP1 in human anterior segments without the trabecular meshwork resulted in a 50% ± 9% decrease in pressure, suggesting an effect on the distal portion of the conventional outflow pathway. CKLP1 worked additively with latanoprost, timolol, and Y27632 to lower IOP, presumably owing to combined effects on different aspects of aqueous humor dynamics. Conclusions: CKLP1 lowered intraocular pressure by reducing episcleral venous pressure and lowering distal outflow resistance in the conventional outflow pathway. Owing to this unique mechanism of action, CKLP1 works in an additive manner to lower intraocular pressure with latanoprost, timolol, and Rho kinase inhibitor Y27632.

Indexed as

AmidesAnimalsAnterior Eye SegmentAntihypertensive AgentsAqueous HumorCromakalimDrug SynergismDrug Therapy, CombinationFemaleHumansIntraocular PressureLatanoprostMaleMiceMice, Inbred C57BLMiddle AgedAmidesAntihypertensive AgentsCromakalimLatanoprostOphthalmic SolutionsProdrugsProstaglandins F, SyntheticPyridinesTimololY 27632

Identifiers

PMID29114841
PMCPMC5678549
OpenAlexW2738338254

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.