(Adds background, analyst, updates share price)
By Jan Lopatka
PRAGUE, July 22 (Reuters) - Czech financial group PPF gave up the race to take over generic drugs maker Zentiva <
> on Tuesday, clearing the field for shareholders to weigh the merits of a competing bid from Sanofi-Aventis of France.PPF said it planned to withdraw its bid for Zentiva, which provoked a counter-offer from Sanofi <SASY.PA> valuing the firm at 40.04 billion crowns ($2.77 billion).
PPF, owned by Petr Kellner, a businessman believed to be the richest Czech, offered 950 crowns per share, while Sanofi bid 1,050, raising investors' hopes of a bidding war that drove the stock to this year's high of 1,174 in June.
"PPF Group does not intend to participate in a bidding war with Sanofi-Aventis," PPF said in a statement.
"The decision was influenced by some doubts about the real value of the company and also by recent steps taken by Zentiva's management," PPF said without elaborating.
Shares in Zentiva slumped 5.5 percent after the news to 1,065 crowns, just 1.4 percent above Sanofi's competing bid, but later pared losses to trade 4.3 percent lower at 1,079 crowns at 1322 GMT.
Sanofi, the world's third largest drug maker by sales which makes mainly original cardiovascular, thrombosis, metabolism and oncology drugs, now holds 24.9 percent in Zentiva. PPF holds 19.2 percent.
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Sanofi's bid is conditional on gaining over 50 percent interest.
If it succeeds, the maker of drugs such as the thrombosis treatment Lovenox would get a bigger foothold in the mostly growing central and eastern European markets and in generics.
Analyst Josef Nemy of Komercni Banka in Prague rated Sanofi's chances of success at 50-50. "It's possible now that PPF could sell its stake," he said.
Generics traditionally have been shunned by large pharmaceutical companies but is now seen as a path to tap booming emerging markets.
Zentiva among others focuses on cardiovascular disorders, inflammatory conditions, pain and nervous system diseases. It employs over 6,000 people, a fraction of Sanofi's 100,000 global workforce.
A Sanofi spokesman reiterated his firm's offer would close on Sept. 19.
"We consider that the price we offered reflects a fair valuation of the laboratory," he said.
Analyst Barbara Janosi of KBC Securities said she would recommend Sanofi's bid to shareholders.
"Based on the fundamental value of the stock... Sanofi is already offering a premium."
Analysts said the Sanofi bid valued Zentiva at around 23 times forecast 2008 earnings, above the central and eastern Europe average of around 20.
A spokeswoman for Zentiva had no immediate comment and an investment relations officer was not immediately available.
Zentiva earlier reported expectations of a 32 percent rise in first-half revenue to 8.9 billion crowns, driven by its newly acquired Turkish unit.
It will report full first-half results on Aug. 4. (Additional reporting by Michael Winfrey and Jason Hovet in Prague and Noelle Mennella in Paris; Editing by David Cowell)