- Adolor Corporation
- Alcon Research, Ltd.
- Allergan
- Aventis Pharmaceuticals
- Bausch & Lomb
- Inspire Pharmaceuticals, Inc.
- Isis Pharmaceuticals
- Otsuka
- Pharmacia & Upjohn (have been acquired by Pfizer, Inc)
- Pharmos Corporation
- Santen, Inc.
- Senju Pharmaceuticals
- SmithKline Beecham Pharmaceuticals (now GlaxoSmithKline)
- Touch Scientific, Inc.
To see a complete listing of clinical trials, click here.