Inclusion Criteria:

- Be diagnosed with previously treated breast, lung, or prostate cancer where docetaxel
is indicated.

- Prior treatment; at least one prior regimen required.

- Able to perform the activities of daily living.

- Off prior cancer therapy for at least 4 weeks.

- If female neither pregnant nor nursing.

- Willing to use contraceptives to prevent pregnancy.

- No other serious illnesses.

- No other active malignancy.

- No serious infections.

- No other current drug therapy for the cancer.

- Blood counts and blood chemistries in or near normal range.

- Prior radiation is permitted.

Exclusion Criteria:

- Active brain metastases.