Inclusion Criteria:

- Histologically or cytologically confirmed Stage IIIb with pleural/pericardial
effusion or Stage IV non-small cell lung cancer (NSCLC).

- Progression of disease after one prior systemic chemotherapeutic regimen for locally
advanced or metastatic NSCLC. (Systemic therapies given in the adjuvant setting are
counted only if the patient relapses within 6 months of the last cycle of therapy.)
In addition to the one prior chemotherapeutic regimen, patients may have received
erlotinib in any setting.

- All patients must have measurable disease.

- No unstable or progressive brain metastases.

- Patients may have received prior radiation therapy but they must have recovered from
all treatment-related toxicities.

- ECOG performance status 0-1

- Adequate hematologic function

- Adequate liver and renal function

- Ability to swallow oral medication

Exclusion Criteria:

- Prior chemotherapy regimen containing docetaxel.

- Active secondary malignancy.

- Uncontrolled concurrent illness including, but not limited to: serious uncontrolled
infection, symptomatic congestive heart failure (CHF), unstable angina pectoris,
cardiac arrhythmia, or psychiatric illness/social situations that would limit
compliance with the study requirements.

- Failure to recover from toxicities related to prior therapy (e.g., surgery,
radiation, chemotherapy).