A Phase III Study of TMC435 in Treatment-naive, Genotype 1, Hepatitis C-infected Patients

Placebo capsule taken by mouth once daily for 12 weeks

100-mg capsule taken by mouth once daily for 12 weeks

PegIFN alfa-2a (PEGASYS) will be administered according to the manufacturer's prescribing information as 180 mcg once weekly injected subcutaneous (under the skin) for up to 24-48 weeks for patients randomized to TMC435 and for up to 48 weeks for patients randomized to placebo.

RBV (COPEGUS) will be administered according to the manufacturer's prescribing information. If body weight is \> 80 kg the total daily dose of RBV will be 1000 mg, taken by mouth as 400 mg (2 tablets of 200 mg) after breakfast and 600 mg (3 tablets of 200 mg) after supper. If body weight is \> 60 kg to \<=80 kg the total daily dose will be 800 mg, taken by mouth as 400 mg (2 tablets of 200 mg per intake) after breakfast and supper. If body weight is \<=60 kg the total daily dose of RBV will be 600 mg, taken by mouth as 200 mg (1 tablet of 200 mg) after breakfast and 400 mg (2 tablets of 200 mg) after supper. Total duration of RBV will be 24-48 weeks.