ZURICH/GDANSK, Sep 12(Reuters) -Here are some of the main factors that may affect Swiss stocks on Thursday:

Roche ROG.S

Roche said on Wednesday the promising results of an early-stage trial of its experimental weight-loss pill that bolstered its shares in July were based on just six patients, underscoring the uncertainty of the development project.

COMPANY STATEMENTS

Baloise Holding BALN.S - Half year earnings release due.

Flughafen Zuerich FHZN.S - Passengers Up 6% Y/Y In August

ECONOMY

No major Swiss economic data scheduled.

Reporting by Zurich newsroom and Gdansk newsroom

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