The aim of this early phase two-part study was to compare the bioavailability (BA) pharmacokinetics (PK) and pharmacodynamics (PD) of racemic pindolol with the benzoate salt of the S-enantiomer of pindolol (ACM-001.1) and provide safety information. A total of 51 healthy male and female subjects were enrolled, and 48 healthy subjects completed the study. Part 1 consisted of two Groups to compare BA and PK, Group 1 received two treatment sequences of a single dose of ACM-001.1 versus racemic pindolol; Group 2 ran in parallel with Group 1 and assessed the PK of a single dose of racemic pindolol in a single period. Part 2 consisted of four groups, to evaluate the steady state PK and PD of ACM-001.1 with multiple ascending doses over 4 days.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
51
Drug: ACM-001.1 immediate release tablets for oral use and matching placebo, and pindolol tablets for oral use. Subjects randomised to Regimen A received placebo tablets to match the tablet number received by subjects in Regimen B.
Drug: Pindolol tablets for oral use.
Drug: Pindolol tablets for oral use. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Drug: ACM-001.1 immediate release tablets for oral use and matching placebo. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Drug: ACM-001.1 immediate release tablets for oral use and matching placebo. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Drug: ACM-001.1 immediate release tablets for oral use and matching placebo. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Drug: pindolol tablets for oral use. Subjects randomised to Regimen A received placebo tablets to match the tablet number received by subjects in Regimen B.
Placebo for oral use. Subjects randomised to Regimen A received placebo tablets to match the tablet number received by subjects in Regimen B.
Placebo for oral use. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Placebo for oral use. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Placebo for oral use. Subjects were dosed over a four day treatment period twice daily. Subjects receiving ACM-001.1 in regimens E, F and G also received placebo tablets to match the tablet number received by subjects receiving pindolol in Regimen D.
Quotient Sciences Ltd
Ruddington, United Kingdom
Part 1 Composite of PK parameters following single doses
Comparative bioavailability of S- pindolol and pindolol include: area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC\[0-infinite\].
Time frame: Up to 5 days
Part 1 PK parameters following single doses
Comparative bioavailability of S- pindolol and pindolol include:maximum observed concentration (Cmax)
Time frame: Up to 5 days
Part 1 PK parameters following single doses
Comparative bioavailability of S- pindolol and pindolol include:time of occurrence of Cmax (Tmax)
Time frame: Up to 5 days
PK parameters following single doses
Comparative PK parameters of S- pindolol and racemic pindolol include: area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC\[0-infinite\]).
Time frame: Up to 5 days
PK parameters following single doses
Comparative PK parameters of S- pindolol and racemic pindolol include: maximum observed concentration (Cmax)
Time frame: Up to 5 days
PK parameters following single doses
Comparative PK parameters of S- pindolol and racemic pindolol include: t time of occurrence of Cmax (Tmax)
Time frame: Up to 5 days
Stoichiometric dose relationship measured using PK parameters following single doses
PK parameters of S- pindolol and racemic pindolol include: area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC\[0-infinite\])
Time frame: Up to 5 days
Stoichiometric dose relationship measured using PK parameters following single doses
PK parameters of S- pindolol and racemic pindolol include: maximum observed concentration (Cmax).
Time frame: Up to 5 days
Part 2 Composite of PK parameters following multiple doses in plasma
PK parameters of S- pindolol/racemic pindolol:Area under the curve for interval between doses (tau) (AUC(0 tau);Area under the concentration-time curve from time zero (pre-dose) to last time of measurable concentration (AUC\[0-t\])
Time frame: Up to 6 days
Part 2 Composite of PK parameters following multiple doses in plasma
PK parameters of S- pindolol/racemic pindolol: Maximum observed concentration (Cmax),
Time frame: Up to 6 days
Part 2 Composite of PK parameters following multiple doses in plasma
PK parameters of S- pindolol/racemic pindolol: Time to first occurrence of Cmax from plasma concentration-time data(Tmax).
Time frame: Up to 6 days
Pharmacodynamics of ACM-001.1: Cardiovascular vital parameter- heart rate
Heart rate (beats per minute)
Time frame: Up to 6 days
Cardiovascular vital parameter- blood pressure
Systolic blood pressure (mmHG) and diastolic blood pressure (mmHG)
Time frame: Up to 6 days
Serum biomarker- DHEA/Cortisol
Dehydroepiandrosterone (DHEA)/Cortisol (ng/mL). Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours
Serum biomarker- Myostatin
Myostatin (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker- Folistatin
Folistatin (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker-IGF1
Insulin-like growth factor (IGF)1 (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker - (Type 3 procollagen peptide) PIIINP
PIIINP (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker - monokine-induced by gamma interferon (MIG/CXL9) Leptin
Leptin (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker - epithelial neutrophil activating peptide 78 (ENA78)
ENA78 (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker - Ghrelin
Ghrelin (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker - Growth Hormone Receptor Hormone
Growth Hormone Receptor Hormone (ng/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose. Day 4 at pre-dose, 1.5 hours.
Serum biomarker - Somatostatin
Somatostatin (pg/mL).Serum concentrations were determined using validated analytical method.
Time frame: Day 1 at pre-dose (baseline). Day 4 at pre-dose, 1.5 hours.
Part 1 Composite PK parameters in urine following single doses
PK parameters of S-pindolol, R-pindolol and pindolol: Amount excreted (Ae), Cumulative amount excreted (CumAe), Fraction of dose excreted (%Ae) and Cumulative fraction of dose excreted (%CumAe)
Time frame: Up to 5 days
Part 2 Composite PK parameters in urine following multiple doses and pindolol
PK parameters of S-pindolol, R-pindolol and pindolol: Amount excreted (Ae), Cumulative amount excreted (CumAe), Fraction of dose excreted (%Ae) and Cumulative fraction of dose excreted (%CumAe)
Time frame: Up to 7 days
Part 1 and Part 2 Analysis of S-pindolol and R-pindolol concentrations in plasma for any in vivo conversion
Plasma concentrations were determined using validated analytical methods.
Time frame: Up to 4 days
Part 1 Number of participants with adverse events following single doses as a measure of safety and tolerability
AEs will be collected from provision of written informed consent until discharge at the follow-up contact.
Time frame: From screening: day -28 to follow up call on day 8 (part 1), up to 36 days.
Part 2 Number of participants with adverse events following single doses as a measure of safety and tolerability
AEs will be collected from provision of written informed consent until discharge at the follow-up contact
Time frame: From screening: day -28 to follow up call on day 11 (part 2), up to 39 days.
Part 2 only - Pulmonary function test
Forced expiratory spirometry to determine parameters FEV1, FVC, FEV1/FVC
Time frame: Up to 32 days
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