6. Expected remaining life span \> or = three months.
7. ECOG performance status 0 - 2.
8. 18 years or of legal age.
9. Male patients or non-pregnant and non-lactating female patients, who are either using adequate birth control, are surgically sterile or post-menopausal.
10. Negative serum pregnancy test, if fertile female.
11. Willingness and ability to sign an informed consent document.
You may not be if
1. Evidence of CNS involvement.
2. Other active malignancy or history of treatment of any malignancy (excluding non-melanoma skin cancer) within the previous three years.
3. Previous therapy with Campath.
4. Patients with low-risk chronic lymphocytic leukemia according to the Rai Staging System.
5. Concurrent immunotherapy.
6. Concurrent use of steroids.
7. Use of an investigational medication or device within 1 month of initiating study therapy.
8. Patients who have had allogeneic bone marrow transplantation.
9. Total serum bilirubin above the upper limit of normal; serum creatinine above the upper limit of normal.
10. AST or ALT \> 2.5 times the upper limit of normal.
11. Any condition or any medication which may interfere with the conduct of the study.
