This is a nonrandomized, open-label, no-control, dose-escalation Phase 1b trial in 18 patients with chronic HBV infection to determine the safety, preliminary efficacy, and pharmacokinetics (PK) of QL-007 after administration over 28 days of multiple oral doses in a fasted state at the following planned dose levels: 200 mg/day (100 mg two times a day (BID)), 400 mg/day (200 mg BID), then 600 mg once daily (QD), with 6 patients for each cohort.
Administration of the next dose level will occur only if the preceding dose was determined to be safe and well tolerated. The decision to proceed to the next higher dose level will be made by a Safety Review Committee (SRC) based upon review of efficacy and safety data including AEs, safety laboratory results, vital signs and ECGs. PK data for up to 12 hours post-dose will also be reviewed. The review will be conducted after the last subject in a cohort completes the Day 28 visit. The planned dose levels can be modified based on the data reviewed.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
18
Patients will be enrolled in 1 of 3 cohorts (6 patients per cohort): QL 007 200 mg/day (100 mg BID), or QL 007 400 mg/day (200 mg/BID), or QL 007 600 mg QD. QL 007 will be administered orally daily over the 28 days under fasted state. Patients fast for 2h before administration and 1h after administration.
P3 Research
Wellington, New Zealand
RECRUITINGIncidence of Adverse Events of QL-007
Safety assessments will include adverse events, clinical safety laboratory parameters, vital signs, physical examinations, and electrocardiogram results.
Time frame: From randomization up to Day 36
Peak Plasma Concentration (Cmax) of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
The time to Cmax (tmax) of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
AUC0-t (area under the plasma concentration versus time curve) of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Days 1, 3, 8, 15, 22 and 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
AUC0-∞ of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
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t1/2 (terminal elimination half-life) of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
Vz/F(apparent volume of distribution for the terminal disposition phase) of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
CL/F (apparent clearance) of QL-007 following multiple doses
Concentrations of QL-007 in plasma will be collected on Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28.
Time frame: On Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28, samples will be collected pre-dose; on Day 1 and 28, samples will also be collected at 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 10h and 12h post dose.
Change in serum HBsAg from baseline at Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28
To evaluate serum levels of HBsAg, multiple blood samples will be drawn as specified in the Schedule of Assessments. Blood samples will be collected into \<\[specify type of tube\]\> tubes during screening and on Day -1; prior to investigational product administration on Days1, 3, 8, 15, 22, 28; and on the follow-up 7 ±1 days after the last dose of the investigational product.
Time frame: Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28
Change in serum HBV DNA from baseline at Day3, 8, 15, 22 and 28
To evaluate serum levels of HBV DNA, multiple blood samples will be drawn as specified in the Schedule of Assessments. Blood samples will be collected into \<\[specify type of tube\]\> tubes during screening and on Day -1; prior to investigational product administration on Days 1, 3, 8, 15, 22, 28; and on the follow-up 7 ±1 days after the last dose of the investigational product.
Time frame: Day 1, Day 3, Day 8, Day 15, Day 22 and Day 28