|
| Main | | |
| Brand Name | Plavix |
| Generic Name | clopidogrel |
| Indication | Antithrombotic mostly used in patients with heart attack, stroke, PAD or in conjunction with stenting. Chronic use for prevention of chronic heart disease. |
| | Aspirin inhibits the thromboxane-A synthase pathway. Plavix inhibits adenosine diphosphate (ADP). |
| Mechanism | Antiplatelet that inhibits the aggregation of platelets, suppressing the formation of blood clots. |
| Market | Drug-eluting stent panic may increase duration of Plavix use. |
| Competition | Prasugrel. |
| IP | expires 5/17/2012 |
| | European at-risk filer Schweizerhall -- Germany -- different salt form. |
| | Bristol and Plavix innovator Sanofi-Aventis vs. Apotex (private Candian co) and Dr. Reddy's Labs |
| | Patent 4,847,265 in question. SNY has said additional Orange Book patents irrelevant |
| | Is Plavix novel? (validity) |
| | Was the patent appropriately acquired? (enforceability) |
| | Racemic mix patent (4,529,596) |
| | Single isomer patent ('265) |
| | Single isomer acts differently from '596. |
| | No prior art kept from patent examiner, so inequitable conduct argument is weak. |
| | Single isomer precedents? |
| | Levaquin upheld vs. Mylan |
| | Judge Stein ruled against Purdue and for Endo before--but Endo waited for launch because the case wasn’t clear--treble damages. |
| | Same thing could happen here. FDA definition of when the 180-day window starts will confuse this further. |
| | Case began 1/22/2007. '265 patent likely valid & enforceable - comments from Judge Stein |
| Clinical Trials | |
| | CURRENT OASIS 7 |
| | n=18,000 High dose vs low dose Plavix. |