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Microsoft word - brand management in pharmaceuticals sb abstract.doc
Brand Management in Pharmaceuticals
James G. Conley1, Morton I. Kamien2 and Israel Zang3
This paper is concerned with trade marks and patented products. While patent protection is
limited in time, trademarks are practically indefinite (Conley 2005). Hence, Conley and
Szobocsan (2001) suggested that trade marking a product, protected by a patent, can create a
product value transference from the limited life length patent to the unlimited trademark.
This value can be realized in the post patent protection period in competition against legal
imitators of the product who were unable to distinct their products with trademarks during the
patent protection period. Furthermore, in some cases the incumbent who establishes a
trademark while enjoying patent protection introduces, once the patent expires, a new
generation improved substitute patented product competing with both the imitating entrants
(of the old generation product) and the original branded product. In these circumstances the
incumbent may transfer the trademark (and the value it brings) from the old brand to the new
generation patented product to make it an even better competitor.
A notable example for cases of value transference is the branded / generic drug industry (see
Conley and Szobocsan 2001 for more examples). Kamien and Zang 1999 have established, in
the absence of trademarks and new generation drugs, that a drug maker, expecting generic
competition as its patent is about to expire, will prefer to cannibalize its own patent protected
brand and launch its own generic drug before entry becomes possible. This way he captures
and maintains market leadership. The trademark option gives the incumbent drug producer
the additional choice between maintaining market leadership in the old brand by preserving
the trademark assignment, or transferring the trademark value and enhancing market
leadership of an entirely new patented drug (or a combination of both strategies).
Below are the details concerning the case of the Prilosec and Nexium drugs:
1. Prilosec is a trademark (TM) for a formerly patented pharmaceutical compound
known as Omeprazole. Nexium (Esomeprazole magnesium) is the “new generation”
1 1 Department Technology Industry Management, Kellogg Graduate School of Management, Northwestern University, Evanston, Illinois 60208. email@example.com
2 Department of Managerial Economics and Decision Sciences, Kellogg Graduate School of Management, Northwestern University, Evanston, Illinois 60208. firstname.lastname@example.org
3 Faculty of Management, The Leon Recanati Graduate School of Business Administration, Tel Aviv University, Tel Aviv 69978, Israel. email@example.com
patented substitute drug to Prilosec. Both are medications for gastrointestinal reflux
2. AstraZeneca (AZ) is the company owning the patent on Nexium as well as TM's on
Prilosec and Nexium. It also owned the now expired patent on Prilosec. AZ also
owns TM on use of Color Purple
for pill and packaging (prescription or OTC) in the
market GIRD medications. AZ has no TM on Omeprazole.
3. Retail price per pill for prescription Prilosec pre patent expiration was about
4. Nexium is a slightly improved version of Prilosec, launched onto the market in the
first quarter of 2001. Its color is purple. Furthermore, AZ started advertising Nexium
as "Today's Purple Pill, from the Makers of Prilosec". Advertising for Prilosec has
5. AZ's patent on Omeprazole compound expired October 5, 2001 (after 21.5 year life).
6. Prior to patent expiration, a number of generic manufacturers filed with Federal Drug
Administration (FDA) to get an abbreviated new drug application (ANDA) approval
to sell their bioequivalent pill on the market (at substantially reduced price). First
successful ANDA applicant gets a 6 month market exclusivity to sell generic
7. Immediately after ANDA filing, AZ sued all generics who intended to enter market
for prescription Omeprazole based on a theory of infringement of a separate patent on
the enteric coating of the pill. This triggered a 30 month delay in FDA approval of
related generic ANDA applications. This action resulted in a period beyond patent
expiry that is an effective extended monopoly.
8. This followed by heavy litigation between AZ and the generics (Andrx, Genpharm,
KUDCO (division of Schwartx Pharma of Germany)), during December 2001
through October 2002. On October 11, 2002, court ruled that Andrx and Genpharm
were indeed infringing the enteric coating patents while KUDCO was not.
9. On October 31, 2002, FDA issued initial ANDA approval for generic Omeprazole
and 6 month market exclusivity to two companies, Genpharm and Andrx. Neither
could enter the market because of the infringement liability described in 2.8 above.
10. In early Nov. 2002 Andrx, Genpharm and KUDCO concluded a deal agreeing to
11. On November 5, 2002, Andrx and Genpharm formally relinquished their six month
exclusive right to sell generic Omeprazole.
12. On November 16 2002, the FDA approved KUDCO's ANDA application and
KUDCO entered the market as the only company approved to sell generic
Omeprazole. Retail price was about $1.1/pill. They later reported over US$ 1 billion
revenue in 2003 as a result of sales of generic Omeprazole. Genpharm and Andrx got
13. In June 2003, Prilosec over the counter (OTC) was launched by AZ, in a joint venture
with Procter and Gamble under a heavy advertising campaign. Under this partnership
AZ controls supply. The Prilosec OTC pill was not purple but rather pink. As an
OTC product however, it is sold in a package that makes it impossible for OTC buyer
to see pill color. Furthermore, box/packaging for Prilosec OTC is Purple.
Additionally, the dosage of Prilosec OTC (20 mg active ingredient per pill) is exactly
the same as that for generic Omeprazole approved in KUDCO’s ANDA. Hence, the
OTC and Generic offering are perfect substitutes. The OTC product, however, is
cheaper and does not require a prescription. Retail price of Prilosec OTC is
14. In March 2005, AZ sales of Nexium, priced at about $4.0/pill, exceeded the pre-
expiry peak sales of Prilosec. Supply of Prilosec OTC is very limited.
Following the above case, we consider the question of whether incumbent patented brand
producers, facing generic competition, having trademarks assigned to their products, and
introducing new improved patented versions of their brands, will choose to maintain the
trademark with the old branded product or to transfer it to its new version (the "Nexium"). We
discuss this question for a monopolist brand producer (facing a generic entrant), as well as for
the competitive case where there are two substitute brand producers (facing the same generic
entrant). We characterize the optimal or equilibrium solutions and discuss their effects on
consumers and producers. Our analysis shows that a monopolist brand producer will prefer to
transfer its TM to the improved new brand and that this will lower or maintain prices
(compared to the alternative) and hence customers are at large better off. In the competitive
case, when there are two brand producers, the pure strategies Nash equilibrium is that both
brand producers will transfer their TM's to their new improved brands.
Conley, J. G. and J. Szobocsan 2001. Snow White Shows the Way. Managing Intellectual
(a web based Journal), http://www.managingip.com, June issue.
Conley J. G. 2005. Patents Come and Go - Trademarks are Forever. Executive counsel (a web
based Journal), http://www.executivecounsel.info, Vol. 2, No. 2, March – April issue.
Kamien, M. I. and I. Zang 1999. Virtual Patent Extension by Cannibalization. Southern
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Description Product # Used in Research Packaging Product is packed in 12.5 kg box. Each box is identified with the Ingredient Lead Time Gamma-Irradiation Shelf Life Control Diets Used as a control diet for D12451and D12492Formulated by E. A. Ulman, Ph.D., Research Diets, Inc., 8/26/98and 3/11/99. *Typical analysis of cholesterol in lard = 0.95 mg/gram. Cholesterol (mg