Topical Recombinant Human Nerve Growth Factor (Cenegermin) for Neurotrophic Keratopathy

医学 病变 随机对照试验 眼科 神经营养因子 外科 视力 内科学 受体
作者
Stephen C. Pflugfelder,Mina Massaro‐Giordano,Victor L. Perez,Pedram Hamrah,Sophie X. Deng,Ladan Espandar,C. Stephen Foster,J. Affeldt,John A. Seedor,Natalie A. Afshari,Wendy Chao,Marcello Allegretti,Flavio Mantelli,Reza Dana
出处
期刊:Ophthalmology [Elsevier BV]
卷期号:127 (1): 14-26 被引量:171
标识
DOI:10.1016/j.ophtha.2019.08.020
摘要

Purpose

To evaluate the efficacy and safety of topical cenegermin (recombinant human nerve growth factor) in patients with neurotrophic keratopathy.

Design

Multicenter, randomized, double-masked, vehicle-controlled trial.

Participants

Patients with neurotrophic persistent epithelial defect with or without stromal thinning.

Methods

The NGF0214 trial, conducted among 11 sites in the United States, randomized 48 patients 1:1 to cenegermin 20 μg/ml or vehicle eye drops, 6 drops daily for 8 weeks of masked treatment. Follow-up was 24 weeks. Safety was assessed in all patients who received study drug. Efficacy was assessed by intention to treat.

Main Outcome Measures

The primary end point was healing of the neurotrophic lesion (persistent epithelial defect or corneal ulcer) after 8 weeks of masked treatment. Masked central readers measured neurotrophic lesions in randomized clinical pictures, then assessed healing status conventionally (<0.5 mm of fluorescein staining in the greatest dimension of the lesion area) and conservatively (0-mm lesion staining and no other residual staining). Secondary variables included corneal healing at 4 weeks of masked treatment (key secondary end point), overall changes in lesion size, rates of disease progression, and changes in visual acuity and corneal sensitivity from baseline to week 8.

Results

Conventional assessment of corneal healing showed statistically significant differences at week 8: compared to 7 of 24 vehicle-treated patients (29.2%), 16 of 23 cenegermin-treated patients (69.6%) achieved less than 0.5 mm of lesion staining (+40.4%; 95% confidence interval [CI], 14.2%–66.6%; P = 0.006). Conservative assessment of corneal healing also reached statistical significance at week 8: compared to 4 of 24 vehicle-treated patients (16.7%), 15 of 23 cenegermin-treated patients (65.2%) achieved 0 mm of lesion staining and no other residual staining (+48.6%; 95% CI, 24.0%–73.1%; P < 0.001). Moreover, the conservative measure of corneal healing showed statistical significance at week 4 (key secondary end point). Compared to vehicle, cenegermin-treated patients showed statistically significant reductions in lesion size and disease progression rates during masked treatment. Cenegermin was well tolerated; adverse effects were mostly local, mild, and transient.

Conclusions

Cenegermin treatment showed higher rates of corneal healing than vehicle in neurotrophic keratopathy associated with nonhealing corneal defects.
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