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Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Norketotifen in Healthy Subjects

A Double-Blind, Placebo-Controlled, 2-Part, Single Ascending Dose and Multiple Dose Cohort Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Norketotifen in Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03712163
Enrollment
74
Registered
2018-10-19
Start date
2018-10-15
Completion date
2019-03-14
Last updated
2019-03-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Subjects

Brief summary

This is a Phase 1, single-center, double-blind, randomized, placebo-controlled, 2-part, single ascending dose and multiple dose cohort study of orally administered Norketotifen (NKT) in healthy subjects.

Detailed description

Single Ascending Dose: Three single ascending dose cohorts are planned. A total of 10 subjects will be enrolled in each cohort and will be randomly assigned to receive a single oral dose of NKT (n=8) or a matching placebo (n=2). A Safety Review Team (SRT) will review all available safety data in a blinded manner following the completion of each cohort to determine the next dose level to be evaluated in the next cohort. Multiple Dose Cohort: A total of 10 subjects will be enrolled and will be randomly assigned to receive multiple oral doses of NKT (n=8) or a matching placebo (n=2) once daily for an adequate number of days to reach steady state (the number of days will be determined based on the half-life of NKT in Part A). The dose of NKT to be evaluated will be determined by the SRT.

Interventions

DRUGNorketotifen Oral Capsule (Cohort 1)

Single dose Norketotifen

DRUGNorketotifen Oral Capsule (Cohort 2)

Single dose Norketotifen

DRUGNorketotifen Oral Capsule (Cohort 3)

Single dose Norketotifen

DRUGNorketotifen Oral Capsule (Multiple Dose Cohort)

Multiple dose Norketotifen

DRUGPlacebo Oral Capsule

Placebo

Sponsors

Emergo Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * Body mass index (BMI) of 18 to 30 kg/m\^2 * Negative serum pregnancy test (females); females of childbearing potential and males must agree to use acceptable contraception Key

Exclusion criteria

* Pregnant or lactating (females) * Clinically significant past or current medical or surgical history * Clinically significant illness or abnormality on physical examination, 12-lead ECG, laboratory values * Participation in an investigational drug or device study within 30 days prior to Screening

Design outcomes

Primary

MeasureTime frameDescription
Number of subjects with adverse events following single dosesThrough Day 4Including clinically significant and Grade 3 abnormalities in laboratory values, vital signs, ECGs, and physical examination
Number of subjects with adverse events following multiple dosesThrough Day 7Including clinically significant and Grade 3 abnormalities in laboratory values, vital signs, ECGs, and physical examination

Secondary

MeasureTime frame
Time to maximum concentration (Tmax) following single dosesThrough Day 4
Time to maximum concentration (Tmax) following multiple dosesThrough Day 7
Area under the plasma concentration time curve (AUC) following single dosesThrough Day 4
Area under the plasma concentration time curve (AUC) following multiple dosesThrough Day 7
Elimination half-life (t1/2) following single dosesThrough Day 4
Maximum plasma concentration (Cmax) following single dosesThrough Day 4
Apparent clearance (CL/F) following single dosesThrough Day 4
Apparent clearance (CL/F) following multiple dosesThrough Day 7
Apparent volume of distribution (Vz/F) following single dosesThrough Day 4
Apparent volume of distribution (Vz/F) following multiple dosesThrough Day 7
Elimination half-life (t1/2) following multiple dosesThrough Day 7
Maximum plasma concentration (Cmax) following multiple dosesThrough Day 7

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026