This study is a First in Human, three-parts, double-blind, randomized, placebo-controlled, single and multiple ascending dose study. The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of TT5 at different doses in healthy and surgical participants.
The study will be divided into three parts: Part A: Single Ascending Dose - healthy participants cohorts with up to 5 dose levels. Part B: Multiple Ascending Doses - healthy participants cohorts with up to 3 dose levels. Part C: Surgical patients cohorts with up to 3 dose levels. The primary Objective is to investigate the safety and tolerability of TT5 in single and multiple ascending intravenous doses in healthy participants and in surgical patients. The Secondary Objectives are To investigate the pharmacokinetics (PK) of TT5 after single and multiple ascending intravenous doses in healthy participants and after intravenous doses in surgical patients. * To investigate the acute and chronic psychological subjective response of the healthy participants and surgical patients to TT5 * To assess the pharmacodynamics (PD) of TT5 after intravenous doses in surgical patients. Exploratory Objectives areto explore potential fluid biomarkers for TT5
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
94
Direct Intravenous administration of TT5 (5 ascending doses in Single Ascending Dose Part and 3 ascending doses administered during 7 days in Multiple Ascending Dose Part in healthy volunteers) Direct Intravenous administration of TT5 in surgical patients (4 doses administered on the same day) in surgical patients
Intravenous administration of vehicule, according to the same drug regimen than TT5
Cmax & PARC
Adelaide, South Australia, Australia
RECRUITINGIncidence of Adverse Events (AEs) and serious adverse events (SAEs)
Number of AEs and SAEs:To investigate the safety and tolerability of TT5
Time frame: SAD cohorts: Day-1 through Day 8; MAD cohorts: Day-1 through Day 14
Clinically significant changes in physical examinations
% of participants with clinically significant changes from baseline in physical examinations by measuring general appearance, head, eyes, ears, nose, throat (HEENT), neck (including thyroid and nodes), cardiovascular, respiratory, gastrointestinal, renal, neurological, musculoskeletal, and skin.
Time frame: SAD cohorts: Baseline through Day 8; MAD cohorts: Baseline through Day 14
Clinically significant changes in vital signs
% of participants with clinically significant change from baseline in vital signs by measuring heart rate, blood pressure, temperature, and respiratory rate
Time frame: SAD cohorts: Day-1 through Day 8; MAD cohorts: Day-1 through Day 14
Clinically significant changes in laboratory analysis
Mean and SD of clinically significant changes from baseline in laboratory analysis including hematology, coagulation, biochemistry, and urinalysis
Time frame: SAD cohorts: Day-1 through Day 8; MAD cohorts: Day-1 through Day 14
Bond and Lader Visual Analog Scale (VAS)
VAS item values: To assess vigilance will using a Visual Analogic Scale namely the Bond-Lader VAS of Mood and Alertness
Time frame: SAD cohorts: Day 1 through Day 8; MAD cohorts: Day 1 through Day 14
Plasma AUC0-t measurement
Area under the concentration-time curve from time zero until the last observed concentration (AUC0-t) h\*ng/ml
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Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma AUC0-inf measurement
Area under the concentration-time curve from time zero to infinity (AUC0-inf) h\*ng/ml
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma Cmax measurement
Maximum concentration measurement in plasma (ng/ml)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma Tmax measurement
Time to maximum observed concentration in plasma (hours)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma T½ el measurement
Terminal elimination half-life (T½ el) in plasma (hours)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma Kel measurement
Terminal elimination rate constant (Kel) in plasma (fraction/h)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma Cl/F measurement
Apparent clearance (Cl/F) in plasma (mL/min)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Plasma Vz/F measurement
Apparent volume of distribution (Vz/F) in plasma (liters)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Urine CLr measurement
Renal clearance measurement in urine (mL/min)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Urine Aet1-t2 measurement
Amount excreted in urine (Aet1-t2) per interval (mL/min)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Urine Ae0-t measurement
Cumulative urinary excretion from time zero to time t (Ae0-t) ( (mL/min)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
Urine Ae%dose measurement
% of drug recovered in urine (Ae%dose)
Time frame: SAD cohorts: Day 1 through Day 2; MAD cohorts: Day 1 through Day 8
ARCI
Total Score and Sub-scores of Addiction Research Center Inventory questionnaire to investigate subjective effects
Time frame: SAD cohorts: Day 1 through Day 8; MAD cohorts: Day 1 through Day 14