1. Novartis AG
2. Lexicon Pharmaceuticals
3. Ipsen Biopharmaceuticals
4. Pfizer Inc.
5. Hutchison China MediTech Limited (Chi-Med)
6. Progenics Pharmaceuticals
7. Ipsen Pharma
8. Teva Pharmaceutical Industries Ltd.
9. Helsinn Group
10. Omega Laboratories Ltd.