Healthy
Conditions
Brief summary
The purpose of this first in human study is to assess safety, pharmacokinetics, pharmacodynamics, and immunogenicity of single ascending doses of HZN-457.
Interventions
HZN-457 will be given in one subcutaneous administration
Placebo will be given in one subcutaneous administration
Sponsors
Study design
Eligibility
Inclusion criteria
* Screening serum uric acid (sUA) ≥ 4 mg/dL (238 µmol/L) * Screening body mass index (BMI) between 20 to 34.0 kg/m2, inclusive * Medically healthy with no clinically significant medical history, physical examination, laboratory profiles, vital signs, or ECG findings, as deemed by the Investigator. * Male participants must refrain from donating sperm and either agree to remain abstinent from heterosexual intercourse OR agree to utilize contraception * Female participants must be non-pregnant, non-lactating postmenopausal woman of non-childbearing potential (WONCBP) with a follicle-stimulating hormone (FSH) level in the postmenopausal range (\> 40 IU/L)
Exclusion criteria
* History or presence of gout. * Use of any prescription medication within 14 days or 5 half-lives prior to dosing * Participation in another investigational clinical study (eg, drug, vaccine, invasive device) within 30 days or 5 half-lives, whichever is longer, prior to Day 1. * Current liver disease, as determined by alanine transaminase (ALT) or aspartate transaminase (AST) levels \> upper limit of normal (ULN) at Screening or Day -1.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change from Baseline in ECG QTc values. | Baseline, Day 1 Post-Dose, Day 2, Day 4 |
| Change from Baseline in Respiratory Rate values. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Body Temperature values. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in ECG Heart Rate values. | Baseline, Day 1 Post-Dose, Day 2, Day 4 |
| Change from Baseline in ECG PR values. | Baseline, Day 1 Post-Dose, Day 2, Day 4 |
| Change from Baseline in ECG QRS values. | Baseline, Day 1 Post-Dose, Day 2, Day 4 |
| Change from Baseline in ECG QT values. | Baseline, Day 1 Post-Dose, Day 2, Day 4 |
| Incidence of treatment-emergent adverse events (TEAEs) and adverse events of special interest (AESIs) (injection site reactions (ISRs). | Day 1 up to Day 337 |
| Change from Baseline in Hemoglobin value. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in white blood cell counts. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in platelet counts. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Prothrombin Time. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Activated Partial Thromboplastin Time. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Aspartate Aminotransferase (AST) value. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Alanine Aminotransferase (ALT) value. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Urinalysis values. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Systolic Blood Pressure values. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Diastolic Blood Pressure values. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
| Change from Baseline in Pulse Rate values. | Baseline, Day 2, Day 4, Day 8, Day 15, Day 43, Day 85 |
Secondary
| Measure | Time frame |
|---|---|
| Area under the concentration-time curve from time 0 extrapolated to infinity (AUCinf) | Day 1 to Day 8 |
| Elimination half-life (t1/2) | Day 1 to Day 8 |
| Fraction of the administered dose excreted into the urine (Fe) | Day 1 to Day 2 |
| Change and percent change from baseline in serum uric acid (sUA) evaluated post dosing | Day 1 to Day 337 |
| Peak plasma concentration (Cmax) | Day 1 to Day 8 |
| Time to peak plasma concentration (Tmax) | Day 1 to Day 8 |
Countries
New Zealand