A Phase I, open-label clinical pharmacology study designed to evaluate the effect of tipifarnib on cardiac repolarization (corrected QT interval \[QTc\] duration) following a single dose of 900 mg and after repeated twice daily administration of 600 mg in subjects with advanced solid malignancies. Subjects will receive a 900 mg single dose at cycle 1 day 1 follow by 600 mg twice a day orally with a meal (Days 2-7 and 15-21) in 28-day cycles. Beginning on Day 2 of Cycle 1, subjects will self-administer 600 mg tipifarnib, orally with a meal, bid for 7 days in alternating weeks (Days 2-7 and 15-21) in 28-day cycles. The secondary objectives are to evaluate the safety and PK of tipifarnib. Series of PK will be collected on day -1 of Cycle 1, Cycle 1 day 1 and Cycle 1 day 7.
Phase I study will evaluate the effect of tipifarnib on cardiac repolarization (corrected QT interval \[QTc\] duration) following a single dose of 900 mg and after repeated twice daily administration of 600 mg in subjects with advanced solid malignancies. The study will enroll approximately 20 subjects with advanced solid malignancies (at least 8, but no more than 12, male subjects). Subjects must have no approved/appropriate therapeutic options available. Subject will undergo series of ECG at Cycle 1 day -1 follow by study drug dosing, series of Pharmacokinetic and ECG at Cycle 1 day 1 and Cycle 1 day 7. Beginning on Day 2 of Cycle 1, subjects will self-administer 600 mg tipifarnib, orally with a meal, bid for 7 days in alternating weeks (Days 2-7 and 15-21) in 28-day cycles. For Cycle 2 and beyond, subjects will self-administer 600 mg bid on Days 1-7 and Days 15-21 in 28-day cycles.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
6
Cardiac Safety of Tipifarnib
Gabrail Cancer Center Research
Canton, Ohio, United States
NEXT Oncology
Austin, Texas, United States
NEXT Oncology
San Antonio, Texas, United States
The change from baseline in time-matched difference in QTc interval to post-baseline time points after a single 900 mg dose and multiple 600 mg BID doses of tipifarnib in subjects with Advanced Solid Malignancies
The analysis will be performed using the concentration-QTc modeling approach (Garnett 2018) and the by-time point modeling approach defined in the International Council on Harmonisation (ICH) E14 guidance. The analysis will be performed using triplicate, time-matched ECG measurements of the QTc interval will be taken at baseline, Day 1 (900 mg tipifarnib) and Day 7 (600 mg tipifarnib BID) at predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12 and 24 hours post dose (24 hour on day 1 only).
Time frame: 7 days
Investigate safety and tolerability of tipifarnib according to NCI CTCAE v5.0
Incidence of adverse events, incidence of abnormal laboratory test results, abnormal vital signs, and abnormal ECG results
Time frame: 30 days after treatment discontinuation
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