Phase Ia/Ib Multicenter Trial of Mogamulizumab for Advanced or Recurrent Cancer.

Inclusion Criteria:

1. Patients with histologically confirmed, CCR4 negative lung, stomach, esophageal, ovarian or skin cancer.
2. Patients with therapy-resistant cancer. Patients with recurrent cancer or advanced cancer who refused standard therapies.
3. Eastern Cooperative Oncology Group (ECOG) Performance Status is 0, 1 or 2.
4. Patients should be 20 years or older at the time of informed consent.
5. No serious dysfunction of major organs (bone marrow, heart, lung, liver and kidney) and meet the following conditions ; 1) WBC count : \>=1,500/mm3 2) Hemoglobin : \>=8.0g/dL 3) Platelet count : \>=75,000/mm3 4) Serum total bilirubin : \<=2.0 x ULN 5) AST and ALT : \<=2.5 x ULN (Patients with hepatic infiltration which is attributed to primary disease\<=5.0 x ULN) 6) Serum creatinine : \<=1.5 mg/dL 7) SpO2 : \>=93 % 8) ECG : No abnormal findings. 9) EF : \>=50 %
6. Agree to use birth control including condom etc. from the time of obtaining the first consent to 24 weeks after the final administration of the study drug (except female after menopause (1 year or more after the last menstruation) and female/male after the operation for sterilization).
7. Given written informed consent.
8. Patients who can be hospitalized from the day of first administration to the next day.
9. Patients who have target lesions measurable by RECIST ver.1.1.
10. Life expectancy \>= 3 months.

Exclusion Criteria:

1. Patients with HIV antibody positive.
2. Patients with HCV antibody positive.
3. Patients with autoimmune disease.
4. Patients with HBs antigen or HBV-DNA positive.
5. History of serious anaphylaxis induced by antibody preparation.
6. Patients with double cancer.
7. Within 4 weeks after treatment with anticancer agent, immune suppressant, immune enhancer, cytokine therapy, radiotherapy or surgery for the primary disease.
8. Pregnant or breast-feeding females and females who have a possibility of pregnancy.
9. Patients with active infection.
10. Patients with psychosis or dementia.
11. Patients who need continuous systemic administration of adrenocorticosteroid.
12. Patients who have received hematopoietic stem cell transplantation.
13. Patients who have presence or suspicion of CNS involvement.
14. Patients who are administered the other investigational product within 4 weeks of the entry.
15. Patients treated with immunotherapy for cancer (e.g. cancer vaccine therapy) within 12 weeks of the entry.
16. Any other inadequacy for this study.