A Study to Assess the Safety, Tolerability and PK of NPT520-34 in Healthy Subjects

Neuropore Therapies Inc.49 enrolled

Overview

To evaluate the PK, safety and tolerability of orally administered NPT520-34 in healthy subjects at single and multiple doses that may be therapeutically relevant.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

Conditions

Healthy Volunteers

Interventions

NPT520-34 (125 mg)DRUG

NPT520-34, 125 mg oral capsules (size 1)

Placebos (125 mg)DRUG

Placebo, 125 mg oral capsules

Eligibility

Sex: ALLMin age: 18 YearsMax age: 55 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. informed of, and willing and able to comply with, all of the protocol requirements and the investigational nature of the study, and have signed an informed consent form in accordance with institutional and regulatory guidelines; 2. male or female adults between 18 and 55 years of age, inclusive; 3. female subjects must be of non-childbearing potential (i.e. post-menopausal for at least 2 years) or surgically sterile (hysterectomy, bilateral oophorectomy, tubal ligation) or nonsurgically sterile (hysteroscopic sterilization, i.e. Essure); 4. male subjects must be willing to use an adequate barrier method of contraception for the duration of the study and for 90 days after dosing and no sperm donations for the duration of the study and for 90 days after dosing. Male subjects who are surgically sterile (16 weeks post-surgery, or documented proof of Post-Vasectomy Semen Analysis (PVSA) with negative sperm results) need not employ a method of contraception; 5. non-smokers for at least six months; 6. BMI = 18.0 - 32.0 kg/m2 inclusive; 7. in good health, in the judgment of the Investigator, as determined by: 7a. medical history indicative of no serious or severe chronic conditions requiring frequent medical intervention or continual pharmacologic management, and no medical or social conditions that would potentially interfere with the subject's ability to comply with the study visit schedule or the study assessments; 7b. no clinically significant abnormalities in body temperature, heart rate, respiratory rate, blood pressure; 7c. no clinically significant abnormalities in the 12-lead electrocardiogram (ECG); 7d. no clinically significant abnormalities in clinical chemistry (ALT, AST, total bilirubin must be at or below the upper limit of normal and eGFR must be ≥ 90 mL/min), hematology (hemoglobin ≥ 11.5 g/dL for females and ≥ 13 g/dL for males), coagulation and urinalysis; lab tests may be repeated, if necessary (details are provided in the attached flow chart of study assessments). 8. negative results on the following screening laboratory tests: urine drug screen, urine alcohol screen, serum pregnancy test, hepatitis B surface antigen, hepatitis C antibody, and human immunodeficiency virus antibody. Exclusion Criteria: 1. females of child bearing potential 2. history of a significant medical condition, including cholecystectomy or clinically significant GI tract resection, that may interfere with absorption, distribution or elimination of NPT520-34, or with the clinical and laboratory safety assessments in this study; 3. history of pre-existing thyroid abnormalities, such as hyper or hypothyroidism; 4. history of lactose intolerance; 5. history of drug hypersensitivity and disorders affecting respiratory function (e.g., COPD, asthma) and cardiac disorders predisposing to cardiac adverse events 6. history of or current alcohol abuse and/or other drug addiction \< 2 years prior to screening, or a positive urine drug or alcohol screen (e.g., amphetamines, barbiturates, benzodiazepines, opiates, cannabinoids, alcohol and cocaine); 7. positive for HBVsAg, HCV Ab, HIV Ab; 8. 12 lead ECG showing the following: having a corrected QTc interval \> 450 msec or \<340 msec (Fridericia's correction); 9. sustained supine systolic blood pressure \> 140 or \< 90 mm Hg or supine diastolic blood pressure \> 90 or \< 50 mm Hg at Screening or Day -1. The average of the 2 assessments of BP taken at each visit will be used to exclude a subject; 10. resting pulse rate at screening of \> 100 or \< 45. 11. donated or lost \> 500 mL of blood \< 56 days prior to enrollment into this study; 12. plasma donation within 7 days prior to enrollment into this study; 13. active infection or febrile illness \< 14 days prior to the first dose of study medication; 14. use of prescription (including hormone replacement therapy) or over-the-counter medications or herbal supplements ≤ 14 days prior to dosing and until completion of follow-up visit on Day 7 for the SAD subjects and Day 21 for the MAD subjects; 15. excessive regular caffeine intake (\>250 mg of caffeine per day); 16. have participated in other clinical studies of a new chemical entity within 30 days prior to admission to the CRU.

Locations (1)

Celerion, Inc

Tempe, Arizona, United States

Outcomes

Primary Outcomes

Safety/Tolerability of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

A) Incidence of clinically significant treatment-emergent changes in the following clinical measures: 1) physical examination, 2) suicidal ideation, 3) vital signs 4) continuous telemetry for 1 hour prior to dosing and for 2 hours post-dose, 5) continuous telemetry for 1 hour prior to dosing and for 2 hours post-dose. B) Incidence in clinical significant treatment-emergent changes in the following laboratory measures: 1) hematology, 2) clinical chemistry, 3) FSH (post-menopausal women only), 4) coagulation, 5) urinalysis C) Incidence of treatment-emergent adverse events D) Incidence of treatment-emergent serious adverse events

Time frame: Baseline, Day 1, 2 3, 5 and 7

Maximum observed plasma concentration of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of maximum observed plasma concentration (Cmax);

Time frame: Day 1, 2, 3, 5, 7

Time to maximum plasma concentration of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of time to maximum plasma concentration (Tmax);

Time frame: Day 1, 2, 3, 5, 7

Area under the plasma concentration-time curve from 0 hour to the time of the last quantifiable plasma concentration of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of area under the plasma concentration-time curve from 0 hour to the time of the last quantifiable plasma concentration \[AUCt\];

Time frame: Day 1, 2, 3, 5, 7

Area under the plasma concentration-time curve extrapolated to infinity of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of area under the plasma concentration-time curve extrapolated to infinity (AUCinf) after dosing

Time frame: Day 1, 2, 3, 5, 7

Data from ClinicalTrials.gov

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Apparent oral clearance of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of apparent oral clearance (CL/F)

Time frame: Day 1, 2, 3, 5, 7

Apparent oral volume of distribution during the terminal phase of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of apparent oral volume of distribution during the terminal phase (Vz/F)

Time frame: Day 1, 2, 3, 5, 7

Mean residence time of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of mean residence time (MRT)

Time frame: Day 1, 2, 3, 5, 7

Terminal elimination half-life of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

Noncompartmental calculation of terminal elimination half-life (T½);

Time frame: Day 1, 2, 3, 5, 7

Safety/Tolerability as measures of hematology, clinical chemistry, FSH, coagulation and urinalysis of multiple ascending doses (250 mg and 500 mg)

A) Incidence in clinical significant treatment-emergent changes in hematology B) Incidence in clinical significant treatment-emergent changes in clinical chemistry C) Incidence in clinical significant treatment-emergent changes in FSH (post-menopausal women only) D) Incidence in clinical significant treatment-emergent changes in coagulation E) Incidence in clinical significant treatment-emergent changes in urinalysis

Time frame: Baseline, Day 2, 4, 7, 11, 12, 13, 14, and 21

Safety/Tolerability as measures of vital signs and physical examination of multiple ascending doses (250 mg and 500 mg)

A) Incidence of clinically significant treatment-emergent changes in vital signs B) Incidence of clinically significant treatment-emergent changes in physical examination

Time frame: Baseline, Day 1, 2, 7, 8, 9, 10, 11, 14, 16, 18 Day 21

Safety/Tolerability as measures of continuous telemetry of multiple ascending doses (250 mg and 500 mg)

A) Incidence of clinically significant treatment-emergent changes in continuous telemetry

Time frame: Baseline, Day 1, 2, 7, 8, 9, 10, 11, 14, and 15

Safety/Tolerability as measures of suicidal ideation, 12-lead ECG, adverse events and serious adverse events of multiple ascending doses (250 mg and 500 mg)

A) Incidence in clinical significant treatment-emergent changes in suicidal ideation B) Incidence in clinical significant treatment-emergent changes in 12-lead ECG C) Incidence of treatment-emergent adverse events D) Incidence of treatment-emergent serious adverse events

Time frame: Baseline, Day 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18 Day 21

Safety/Tolerability as measure of continuous ECG of Multiple Ascending Doses (250 mg and 500 mg)

A) Incidence in clinical significant treatment-emergent changes in continuous ECG telemetry

Time frame: Baseline, Day 1, 7, and 14

Maximum observed plasma concentration (Cmax) after dosing on Day 1 of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of maximum observed plasma concentration (Cmax) after dosing on Day 1

Time frame: Baseline, Day 1 and 2

Maximum observed concentration at steady-state after dosing on Day 14 of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of maximum observed concentration at steady-state after dosing on Day 14

Time frame: Day 14

Concentration observed at the end of the dosing interval of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of concentration observed at the end of the dosing interval (Ctrough)

Time frame: Day 14, 16, 18

Time to max. plasma concentration after dosing on Day 1 of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of time to max. plasma concentration after dosing on Day 1

Time frame: Day 1

Time to reach Cmax,ss of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of time to reach Cmax,ss

Time frame: Day 14, 16, 18 and 21

Area under the plasma concentration-time curve from 0 hour to the time of the last quantifiable plasma concentration of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of area under the plasma concentration-time curve from 0 hour to the time of the last quantifiable plasma concentration (AUCt)

Time frame: Baseline, Day 1, 2, 7, 8, 9, 10, 11, 14, 16, 18 and 21

Area under the plasma concentration-time curve extrapolated to infinity after dosing of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of area under the plasma concentration-time curve extrapolated to infinity after dosing (AUCinf)

Time frame: Baseline, Day 1, 2, 7, 8, 9, 10, 11, 14, 16, 18 and 21

Area under the concentration time curve from 0-24 hours after dosing on Day 1 of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of the area under the concentration time curve from 0-24 hours after dosing on Day 1 (AUC0-24)

Time frame: Day 1

The area under the concentration time curve during a dosing interval (tau) at steady state after dosing on Day 14 of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of the area under the concentration time curve during a dosing interval (tau) at steady state after dosing on Day 14 (AUCtau)

Time frame: Baseline, Day 1, 2, 7, 8, 9, 10, 11, 14, 16, 18 and 21

Apparent oral clearance of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of apparent oral clearance (CL/F)

Time frame: Day 1

Apparent total plasma clearance after oral administration, calculated as Dose/AUCtau after dosing on Day 14 of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of apparent total plasma clearance after oral (extravascular) administration (CL,ss/F), calculated as Dose/AUCtau after dosing on Day 14

Time frame: Day 14

Apparent oral volume of distribution during the terminal phase of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of apparent oral volume of distribution during the terminal phase (Vz/F)

Time frame: Day 14, 16, 18 and 21

Mean residence time of Multiple Ascending Doses (250 mg, 500 mg)

Noncompartmental calculation of mean residence time (MRT)

Time frame: Baseline, Day 1, 2, 7, 8, 9, 10, 11, 14, 16, 18 and 21

Terminal elimination half-life of Multiple Ascending Doses (250 mg, 500 mg)

Terminal elimination half-life

Time frame: Day 14, 16, 18 and 21

Secondary Outcomes

Maximum Tolerated Dose of Single Ascending Doses (125 mg, 250 mg, 500 mg and 1000 mg)

A) 2/6 subjects assigned to NPT520-34 have SAEs or Grade ≥3 lab abnormalities, considered related to study drug B) 1/6 subjects assigned to NPT520-34 has liver function tests, which: 1) ALT or AST\>3x ULN or bilirubin \>1.5x ULN and related to study drug C) 1/6 subjects assigned to NPT520-34 have liver function tests, which: 1) ALT or AST\>3x ULN or bilirubin\>1.5x ULN and related to study drug D) 1/ 6 subjects assigned to NPT520-34 have kidney function tests, which: 1) eGFR\<60 mL/min and relationship to study drug is considered related, 2) serum creatinine\>2x above baseline and relationship to study drug is considered related E) 2/ 6 subjects assigned to NPT520-34 have kidney function tests, which: 1) eGFR\<60 mL/min and related to study drug, 2) serum creatinine \> 2x above baseline and related to study drug F) Any subject experiences a SAE related to study drug G) Further dose escalation poses inappropriate safety risk according to Sponsor/Investigator

Time frame: Day 1, 2, 3, 5, Day 7

Maximum Tolerated Dose of Multiple Ascending Doses (250 mg and 500 mg)

Time frame: Baseline, Day 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18 Day 21