094 and 093: Eligible Patients

Patients on

SU + metformin

combination therapy

4 wks maintenance

1 wk

1 wk

1 wk

Stop SU and enter

run-in period at

appropriate step

Diet/exercise

only patients

Patients on

SU

monotherapy

Patients on

acarbose

monotherapy

STOPPED

STOPPED

1 g metformin

1.5 g metformin

2.0 g metformin

2.5 g metformin

RANDOMIZE

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