Study to Evaluate the Pharmacokinetics and Safety of Oral Decitabine and Cedazuridine in Cancer Patients With Hepatic Impairment

Exclusion Criteria

• •Treatment with azacitidine or decitabine within 4 weeks before screening. Prior cytotoxic chemotherapy for AML except for hydroxyurea to control high white blood cell (WBC) counts.
• •Hospitalization for more than 2 days for documented febrile neutropenia, pneumonia, sepsis, or systemic infection 30 days prior to first dose.
• •Treatment with any investigational medicinal product (IMP), investigational therapy, chemotherapy, immunotherapy, or targeted therapy within 2 weeks or 5 half-lives, whichever is longer, before the first dose of study treatment, or ongoing clinically significant adverse events from previous treatment.
• •Concurrent MDS therapies, including lenalidomide, erythropoietin, cyclosporine/tacrolimus, granulocyte-colony-stimulating factor (G-CSF), granulocyte-macrophage colony-stimulating factor, etc. Prior treatment with these agents is permitted, provided that completion is at least 1 week before the first dose of study treatment. Short-term use of G-CSF for febrile neutropenia is permitted at the discretion of the treating physician and should be guided by accepted practice or institutional guidelines. Hematopoietic growth factors will not be routinely used unless cleared by Taiho medical expert.
• •Administration of live (attenuated) vaccines within 4 weeks before the first administration of oral decitabine and cedazuridine until after the follow-up visit. Other vaccines, e.g., inactivated or ribonucleic acid (RNA)-based, may be administered but should not occur from 7 days before first administration of oral decitabine and cedazuridine until after the follow-up visit.
• •High medical risk because of other conditions such as uncontrolled systemic diseases, active uncontrolled infections, or comorbidities that may put the participant at risk of not being able to complete 1 cycle of treatment.
• •Conditions which likely promote delayed ventricular repolarization (QT prolongation):
• •1. QTc using Fridericia's correction (QTcF) at screening or Day -1 \>470 ms for males and \>480 ms for females.
• •or
• •2. History or disposition for torsades des pointes (TdP) (e.g., heart failure, hypokalemia, family history of long QT Syndrome).
• •or
• •3. Concomitant medications that prolong the QT/QTc interval.
• •Cardiac abnormalities or unstable cardiovascular conditions:
• •1. Unstable ischemic heart disease or severe heart failure (New York Heart Association Class III or IV).
• •or
• •2. Uncontrolled treated/untreated hypertension (defined as a mean of 3 repeated measurements for systolic blood pressure ≥180 millimeters of mercury (mmHg) and/or diastolic blood pressure ≥110 mmHg; current or documented history of repeated clinically significant hypotension or severe episodes of orthostatic hypotension (systolic blood pressure \<90 mmHg and/or diastolic blood pressure \<50 mmHg).
• •Known significant mental illness or other condition, such as active alcohol or other substance abuse or addiction, that in the opinion of the investigator predisposes the participant to high risk of noncompliance with the protocol.
• •In participants with AML/MDS, rapidly progressive or highly proliferative disease or other criteria that render the participant at high risk of requiring intensive cytotoxic chemotherapy within the next 3 months.
• •Life-threatening illness or severe organ system dysfunction, such as uncontrolled congestive heart failure or chronic obstructive pulmonary disease, or other reasons including laboratory abnormalities, that, in the investigator's opinion, could compromise the participant's safety, interfere with the absorption or metabolism of oral decitabine and cedazuridine, or compromise completion of the study or integrity of the study outcomes.
• •Untreated central nervous system (CNS) metastases. Participants with treated CNS metastases are eligible provided they have been clinically stable for at least 4 weeks before screening.
• •Participants infected with human immunodeficiency virus (HIV).
• •Positive blood screen for hepatitis C antibody (HCV+) and positive RNA polymerase chain reaction (PCR). Participant can be included if HCV+ but negative for RNA PCR.
• •Positive blood screen for hepatitis B surface antigen (HBsAg+). Participants with positive blood screen for hepatitis B surface antibody (HBsAb+) and negative hepatitis B core antibody (HBcAb-) can be included if negative for hepatitis B surface antigen (HBsAg-).
• •Average intake of more than 24 units of alcohol per week for male participants and 17 units per week for female participant (1 unit of alcohol equals 10 mL of pure alcohol, i.e., approximately 250 mL of beer, 75 mL of wine, or 25 mL of spirits).
• •Donation or loss of more than 500 mL of blood within 60 days prior to the first study drug administration.
• •Hypersensitivity to decitabine, cedazuridine, or any of the excipients in oral decitabine and cedazuridine.