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Phase 1, open-label, non-randomized, dose-escalation study to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of HBI-8000 administered orally.
Full description
Phase 1, open-label, non-randomized, dose-escalation study to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of HBI-8000 administered orally. Patients must be hospitalized as per guidance of the treating investigator throughout Cycle 1. Patients will receive HBI 8000 twice weekly (BIW) (after breakfast), in 28 day treatment cycles.
Patients will be enrolled in cohorts of 3 patients. The first cohort of 3 patients will receive 30 mg BIW. Decisions regarding cohort escalation will be based upon the clinical experience in Cycle 1 (first 28 days) only. For a given cohort, if 1 patient enrolled in the cohort experiences a dose limiting toxicity (DLT) within 28 days of the first dose, the cohort will be expanded to 6 patients.
Enrollment
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Inclusion criteria
Histologically or cytologically diagnosed non Hodgkin's lymphoma patients for whom no other standard therapy is available
Male or female, aged 20 years or over at time of signing informed consent
Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2 and life expectancy, per the investigator, of more than 3 months at time of signing informed consent
Patients for whom at least 1 measurable lesion is confirmed in the lesion assessment before the start of study drug administration
Patients must have recovered to Grade 1 or less (Common Terminology Criteria for Adverse Events [CTCAE], Version 4.03) from all toxicity associated with previous chemotherapy, antibody, or radiotherapy. (Exception: patients may enter with continuing alopecia regardless of CTCAE grade.) The following intervals between ending of another treatment and starting of HBI-8000 must elapse:
Patients must agree not to consume grapefruit, grapefruit juices, Seville oranges, St.John's wort, or any products containing Seville oranges, grapefruit, or St. John's wort during their participation on the study
Patients who signed the informed consent form and are capable of giving informed consent in accordance with the policies of the Institutional Review Board (IRB)
Patients must be willing to be hospitalized as per guidance of the treating investigator throughout Cycle 1
Exclusion criteria
Patients with current, previous, or clinically suspected invasion of the central nervous system (CNS)
Organ transplant recipients
Allogeneic stem cell transplant recipients
Previous extensive radiotherapy involving ≥30% of hematopoietic bone marrow, excluding patients who have had total body irradiation as part of a conditioning regimen for ASCT
Patients with an electrocardiogram (ECG) finding at screening of QT interval corrected for heart rate using Fridericia's method (QTcF) prolongation >450 ms in male patients and >470 ms in female patients, ventricular tachycardia, ventricular fibrillation, second- or third-degree heart block, unstable angina, coronary angioplasty or stenting, myocardial infarction, chronic congestive heart failure (New York Heart Association Class III or IV) within 6 months of starting the study drug, any cardiomyopathy, or long QT syndrome
Any condition including the presence of laboratory abnormalities, which, as judged by the investigator, places the patient at unacceptable risk if he/she were to participate in the study. Examples of such medical conditions are, but are not limited to, as follows:
• Uncontrolled diabetes mellitus (e.g., glycosylated hemoglobin [HbA1c] >8%), as judged by the investigator
Patients who have had any of the following abnormal measurements at screening performed within 2 weeks (14 days) prior to the start of study drug administration:
Any cardiac arrhythmia requiring anti-arrhythmic medication
Patients with a history of seizures
Patients with known hypersensitivity to histone deacetylase (HDAC) inhibitors or any of the components of the HBI-8000 tablets
Patients with a history or complication of malignant tumors, unless the patients have been free of the disease for 5 years or longer, except the following, if successfully treated, in which case they are not excluded:
Patients with uncontrolled inter-current infection
Patients with active clinically significant bleeding or recently occurred thrombotic diseases, including patients who are at a high risk for a thromboembolic event and are not willing to take venous thromboembolic prophylaxis
Women who are pregnant, women who are not willing to stop breastfeeding during study period and for 10 days after the last dose of study drug, women of child bearing potential, or men with a sexual partner of child bearing potential who are not willing to use double-barrier method during study period and at least 3 months (for men) or at least 1 month (for women) after the last dose of study drug. Double-barrier method is defined as a combination of 2 effective contraceptive methods, such as condom or condom containing spermicide in combination with a diaphragm, oral contraceptive, or intrauterine device.
Note: Female subjects will be considered to be a woman of childbearing potential unless having undergone permanent contraception or postmenopausal. Postmenopausal is defined as at least 12 months without menses with no other medical reasons (i.e., chemical menopause because of treatment with anti-malignant tumor agents).
Seropositivity for the human immunodeficiency virus (HIV) antibody
Hepatitis B surface antigen-positive, or hepatitis C virus antibody positive. In case hepatitis B core antibody and/or hepatitis B surface antibody is positive even if hepatitis B surface antigen negative, a hepatitis B virus deoxyribonucleic acid (DNA) test [real-time polymerase chain reaction (PCR]) measurement] should be performed and if positive, the patient should be excluded
Patients who were in other experimental clinical studies with investigational agents within 30 days before the start of study drug administration (12 weeks for any investigational antibody therapy or investigational ASCT), or in current clinical studies with investigational agents
Patients with a history of drug abuse or long-term excessive alcohol consumption which could affect study result assessment
Patients considered by the investigator to be unsuitable for the study because of any significant medical condition, laboratory abnormality, or psychiatric illness that would prevent the patient from participating in the study, or because of any condition that confounds the ability to interpret data from the study
Primary purpose
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13 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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