Evidence map›Paper›PMID 28738417›Full record

ArticleInvestigative ophthalmology & visual science2017

A Pharmacodynamic Analysis of Choroidal Neovascularization in a Porcine Model Using Three Targeted Drugs.

Jeffrey Tran, Caroline Craven, Kathy Wabner, Jenn Schmit, Brock Matter, Uday Kompella, Hans E Grossniklaus, Timothy W Olsen

Open access · goldAbstract readComparative Study
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 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 17 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Jeffrey TranEmory Eye Center, Emory University Department of Ophthalmology, Atlanta, Georgia, United States.
Caroline CravenEmory Eye Center, Emory University Department of Ophthalmology, Atlanta, Georgia, United States.
Kathy WabnerEmory Eye Center, Emory University Department of Ophthalmology, Atlanta, Georgia, United States 2The University of Minnesota, Department of Civil, Environmental, and Geo-Engineering, Minneapolis, Minnesota, United States.
Jenn SchmitEmory Eye Center, Emory University Department of Ophthalmology, Atlanta, Georgia, United States 2The University of Minnesota, Department of Civil, Environmental, and Geo-Engineering, Minneapolis, Minnesota, United States.
Brock MatterThe University of Colorado, Department of Pharmaceutical Sciences, University of Colorado School of Pharmacy, Aurora, Colorado, United States.
Uday KompellaThe University of Colorado, Department of Pharmaceutical Sciences, University of Colorado School of Pharmacy, Aurora, Colorado, United States.
Hans E GrossniklausEmory Eye Center, Emory University Department of Ophthalmology, Atlanta, Georgia, United States.
Timothy W OlsenEmory Eye Center, Emory University Department of Ophthalmology, Atlanta, Georgia, United States.
Emory University · USEmory Eye Center · USUniversity of Colorado Denver · US

Funding

P30-Core Grant for Vision Research Core CP30EY006360 · NEI · EMORY UNIVERSITY · PI NICKERSON, JOHN M · 1986 to 2025
$15.3M
Suprachroidal Drug Delivery for Retina DisordersR01EY022097 · NEI · UNIVERSITY OF COLORADO DENVER · PI KOMPELLA, UDAY B, PRAUSNITZ, MARK R. · 2013 to 2016
$2.3M
NEI NIH HHS P30 EY006360NEI NIH HHS R01 EY022097
6 · The paper itself

Abstract

Purpose: To compare the efficacy of microneedle-delivered suprachoroidal (SC) pazopanib to intravitreal (Ivit) delivery of pazopanib, bevacizumab, or a fusion protein hI-con1 versus vehicle controls on choroidal neovascularization (CNV) growth in a pig model. Methods: Forty-one pigs were injected on the day of CNV induction (hI-con1 on postinduction day 14) with either 2.5 mg Ivit bevacizumab (n = 9), 1 mg Ivit pazopanib (n = 9), 300 Ivit μg hI-con1 (n = 4), or 1 mg SC pazopanib (n = 9), vs. 10 vehicle controls (3 SC + 7 Ivit = 10). Pigs were euthanized at week 2 (11), 3 (8), 4 (11), and 8 (11), and eyes were fixed for histology. The size of the CNV was determined from histology, and CNV height was the primary outcome measure. Immunostaining for cytotoxic T-cells was performed in the hI-con1 study. Results: In 39 of 41 (95%) eyes, type 2 CNV lesions were identified. One CNV lesion was lost during dissection. One animal was euthanized due to surgical complications. For mean CNV size comparisons, Ivit pazopanib had smaller mean height measurements (90 ± 20 μm) versus controls (180 ± 20 μm; P = 0.009), and Ivit pazopanib had smaller maximum CNV height (173 ± 43 μm) compared to SC pazopanib (478 ± 105 μm; P = 0.018). The mean lesion size in hI-con1-treated animals trended smaller than in controls (P = 0.11). Immunostaining did not detect cytotoxic T-cells. Conclusions: Intravitreal pazopanib and to a lesser extent hI-con1 reduced the size of CNV lesions. The pig model has nearly a 100% rate of type 2 CNV induction and is a reliable preclinical model with pharmacodynamics similar to humans.

Indexed as

Disease Models, AnimalAngiogenesis InhibitorsAnimalsBevacizumabChoroidal NeovascularizationFluorescein AngiographyImmunoconjugatesIndazolesIntravitreal InjectionsPyrimidinesSulfonamidesSwineT-Lymphocytes, CytotoxicVascular Endothelial Growth Factor AAngiogenesis InhibitorsBevacizumabhI-con1ImmunoconjugatesIndazolespazopanibPyrimidinesSulfonamidesVascular Endothelial Growth Factor A

Identifiers

PMID28738417
PMCPMC5525553
OpenAlexW2737858630

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.