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Phase 2 Clinical Trial to Evaluate OC-01 Nasal Spray in Subjects With Neurotrophic Keratopathy


Brief Summary

The objective of this study is to evaluate the safety and effectiveness of OC-01 (varenicline) nasal spray as compared to placebo nasal spray for mean change from baseline in corneal fluorescein staining in subjects with Stage 1 (corneal epithelial hyperplasia/punctate keratopathy) neurotrophic keratopathy (NK) in one or both eyes.

Primary Purpose
Study Type
Phase 2


Healthy Volunteers
Minimum Age
18 Years
Maximum Age

Inclusion Criteria:

  • Be at least 18 years of age at Visit 1.
  • Patients with Stage 1 (corneal epithelial hyperplasia/punctate keratopathy) NK in one or both eyes, as defined by the Mackie Criteria.
  • Evidence of decreased corneal sensitivity (≤ 4 cm using the Cochet-Bonnet aesthesiometer) in at least 1 corneal quadrant.
  • Schirmer's test without anesthesia >3 mm/ 5 minutes in the affected eye with a cotton swab nasal stimulation Schirmer's Test score at least 7 mm greater in the same eye
  • Have provided verbal and written informed consent.
  • If a female is of childbearing potential, they must: use an acceptable means of birth control (acceptable methods of contraception include hormonal - oral, implantable, injectable, or transdermal contraceptives, mechanical - spermicide in conjunction with a barrier such as a diaphragm or condom, IUD, or surgical sterilization of partner), and have a negative urine pregnancy test on Day 1.

Exclusion Criteria:

  • Have Stage 2 or Stage 3 NK affecting one or both eyes.
  • Have ocular graft versus host disease or Stevens-Johnson syndrome.
  • Have any active ocular infection (COVID-19 conjunctivitis, bacterial, viral, fungal, or protozoal) or active ocular inflammation not related to NK in the affected eye.
  • Be currently receiving autologous serum tears, amniotic membrane, Fresh Frozen plasma or cord blood derivative tears.
  • Have severe blepharitis and/or severe meibomian gland disease in the study eye.

Join this Trial

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Study Stats
Protocol No.
Sofia Gudiel
  • UCLA Westwood
For Providers
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