Investigator-initiated Clinical Trial (Phase II) of Cancer Vaccine "Dainippon Sumitomo Phama(DSP)-7888" for Acute Myeloid Leukemia Patients.

Osaka University

Status and phase: Unknown; Phase 2

Conditions: Acute Myeloid Leukemia in Remission

Treatments: Drug: DSP-7888

Study type: Interventional

Funder types: Other

Identifiers

NCT04747002

WT1-AM-05

Details and patient eligibility

About

This study is an investigator-initiated clinical trial (Phase II) using DSP-7888 for acute myeloid leukemia patients with 1st hematological complete remission (CR). DSP-7888 is a novel cocktail peptide vaccine designed to induce cytotoxic T lymphocytes that recognize Wilms Tumor Gene 1 (WT1) peptides.

Full description

This study is an investigator-initiated clinical trial (Phase II) using DSP-7888 for acute myeloid leukemia patients with 1st hematological CR. DSP-7888 is a novel cocktail peptide vaccine designed to induce cytotoxic T lymphocytes that recognize WT1 peptides. Primary endpoint is relapse-free survival, and 2nd endpoint is hematological relapse-free survival, overall survival and adverse event.

Enrollment: 100 estimated patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. acute myeloid leukemia defined by World Health Organization (WHO) 2016 classification
2. favorable or intermediate risk based on European Leukemia Net (ELN) 2017 risk classification
3. 1st hematological after chemotherapy
4. Human Leukocyte Antigen (HLA)-A*02:01, 02:06, 24:02
5. 20-80 years old
6. Eastern Cooperative Oncology Group (ECOG) performance Status 0-2
7. within 35 days after White Blood Cell (WBC) and Neutrophil recovers over 1500 and 500, respectively
8. sufficient organ function as below within 7 days

(1) Neutrophil : >= 1000 (2) Cr : >= 3.0mg/dl (3) Aspartate aminotransferase (AST), Alanine transaminase (ALT) : 5 x the upper limit of normal (ULN) for the reference lab (4) Percutaneous oxygen saturation (SpO2): >= 95% 9) patients who agree contraception until 6 months after the last injection 10) non-candidate for hematopoietic stem cell transplantation.

1. illegible for hematopoietic stem cell transplantation (HSCT)
2. lack of appropriate donor
3. patients who don't select HSCT at the 1st hematological complete remission (hCR) timing

Exclusion criteria

1. multiple primary cancer
2. autoimmune disease
3. usage of investigational or unapproved drug within 28 days
4. severe organ failure
5. Human Immunodeficiency Virus (HIV) antibody / Hepatitis B surface (HBs) antigen / Hepatitis C Virus (HCV) antibody positive
6. pregnant woman
7. lactating woman
8. under treatment against active infection
9. difficult to enroll because of mental problem
10. other reasons which investigator judge appropriate for enrollment

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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100 participants in 2 patient groups

Administration Group

Active Comparator group

Description:

Patients who are injected with DSP-7888.

Treatment:

Drug: DSP-7888

Non-administration Group

No Intervention group

Description:

Patients who are only under observation.