Evidence map›Paper›PMID 26559479›Full record

ArticleInvestigative ophthalmology & visual science2015

In Vitro and In Vivo Sustained Zero-Order Delivery of Rapamycin (Sirolimus) From a Biodegradable Intraocular Device.

Kevin D Lance, Samuel D Good, Thaís S Mendes, Mynna Ishikiriyama, Patrick Chew, Laurel S Estes, Kazuhito Yamada, Sri Mudumba, Robert B Bhisitkul, Tejal A Desai

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Review
  3. Progress in Ocular Drug Delivery: Challenges and Constraints.Handbook of experimental pharmacology · 2024
    Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Co-Delivery of Timolol and Brimonidine with a Polymer Thin-Film Intraocular Device.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Long-term intraocular pressure reduction with intracameral polycaprolactone glaucoma devices that deliver a novel anti-glaucoma agent.Journal of controlled release : official journal of the Controlled Release Society · 2018
    Article
  16. Review
  17. Article
  18. 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

10 authors at 3 institutions in 2 countries.

Kevin D LanceUniversity of California at Berkeley-University of California, San Francisco Bioengineering Graduate Program, San Francisco, California, United States.
Samuel D GoodDepartment of Ophthalmology, University of California, San Francisco, San Francisco, California, United States.
Thaís S MendesDepartment of Ophthalmology, University of California, San Francisco, San Francisco, California, United States.
Mynna IshikiriyamaDepartment of Ophthalmology, University of California, San Francisco, San Francisco, California, United States.
Patrick ChewDepartment of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, United States.
Laurel S EstesDepartment of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, United States.
Kazuhito YamadaPharmaceutical Development Group, Pharmaceutical Development Center, Santen Pharmaceutical Co., Ltd., Nara, Japan.
Sri MudumbaPharmaceutical Development, Santen, Inc., Emeryville, California, United States.
Robert B BhisitkulDepartment of Ophthalmology, University of California, San Francisco, San Francisco, California, United States.
Tejal A DesaiUniversity of California at Berkeley-University of California, San Francisco Bioengineering Graduate Program, San Francisco, California, United States 3Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Fra.
University of California, San Francisco · USSanten (Japan) · JPSanten (United States) · US

Funding

Nanoporous Films for Ocular Drug DeliveryR01EY021574 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DESAI, TEJAL A. · 2011 to 2014
$1.5M
NEI NIH HHS R01 EY021574NEI NIH HHS R01EY021574
6 · The paper itself

Abstract

purposeWe created implantable intraocular devices capable of constant and continuous rapamycin release on the scale of months to years.

methodsPolycaprolactone (PCL) thin films were used to encapsulate rapamycin to create implantable and biodegradable intraocular devices. Different film devices were studied by modifying the size, thickness, and porosity of the PCL films.

resultsIn vitro release of rapamycin was observed to be constant (zero-order) through 14 weeks of study. Release rates were tunable by altering PCL film porosity and thickness. In vivo release of rapamycin was observed out through 16 weeks with concentrations in the retina-choroid in the therapeutic range. Rapamycin concentration in the blood was below the lower limit of quantification. The drug remaining in the device was chemically stable in vitro and in vivo, and was sufficient to last for upwards of 2 years of total release. The mechanism of release is related to the dissolution kinetics of crystalline rapamycin.

conclusionsMicroporous PCL thin film devices demonstrate good ocular compatibility and the ability to release rapamycin locally to the eye over the course of many weeks.

Indexed as

Absorbable ImplantsDrug Delivery SystemsAnimalsAnterior Eye SegmentDelayed-Action PreparationsDisease Models, AnimalFollow-Up StudiesImmunosuppressive AgentsRabbitsSirolimusTime FactorsUveitisDelayed-Action PreparationsImmunosuppressive AgentsSirolimus

Identifiers

PMID26559479
PMCPMC4642602
OpenAlexW2263452530

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.