Phase 1 of this study will consist of 2 parts * Part 1 will evaluate the safety, tolerability, pharmacokinetics and immunogenicity of PRA-216 in healthy volunteers through single ascending dose administered by either intravenous (IV) or subcutaneous (SC). * Part 2 will evaluate the safety, tolerability, pharmacokinetics (PK) and immunogenicity of PRA-216 in healthy volunteers with repeat doses of multiple ascending dose administered subcutaneously. Phase 2a of this study is a randomized, double-blind, placebo-controlled study to investigate the efficacy, safety and immunogenicity of PRA-216 in participants with mild to moderate asthma. The dose of PRA-216 for this phase will be determined from Phase 1.
This study is a Phase 1/2a randomized, double-blind, placebo-controlled, single- and multiple-dose study with staggered dose escalations in healthy participants and participants with mild to moderate asthma. Single-ascending dose (SAD) cohorts will be evaluated for one single dose administered. Multiple ascending dose (MAD) cohorts will be evaluated for repeat doses . Participants with mild to moderate asthma will be recruited for Phase 2a of this study, to evaluate safety of randomized, double blind, placebo controlled PRA-216. The dose of PRA-216 for this phase will be determined from Phase 1 safety, tolerability, and PK data. Additional dose levels or schedules may be used for Phase 2a, depending on data from Phase 1. This study consists of 2 phases, as follows: Phase 1, Part 1: SAD in healthy volunteers. Study visits in this section will entail a single dose administration of PRA-216 or placebo and collection of study data. Phase 1, Part 2: MAD in healthy volunteers. Study visits in this section will entail repeat doses of PRA-216 or placebo and collection of study data. Phase 2a Participants with mild to moderate asthma will receive PRA-216 or placebo. The dose will be determined from Phase 1.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
96
Linear
Joondalup, Western Australia, Australia
NOT_YET_RECRUITINGLinear
Nedlands, Western Australia, Australia
RECRUITINGPhase 1: Incidence, nature, and severity of serious adverse events (SAEs) with a single dose of PRA-216 in healthy volunteers (SAD arm)
Incidence, nature, and severity of serious adverse events (SAEs)
Time frame: Up to 25 weeks
Phase 1: Incidence, nature, and severity of serious adverse events (SAEs) of multiple doses of PRA-216 in healthy volunteers (MAD arm)
Incidence, nature, and severity of and serious adverse events (SAEs)
Time frame: up to 29 weeks
Phase 2a: To evaluate the effect of multiple doses of PRA-216 compared to placebo on exhaled nitric oxide (FeNO) in asthma participants
Fractional exhaled nitric oxide (FeNO) is a non-invasive biomarker of airway inflammation in asthma.
Time frame: Up to 29 weeks
Phase 1: Immunogenicity of PRA-216: ADA in healthy volunteers
Incidence and magnitude of anti-drug antibody following single or multiple doses of PRA-216
Time frame: Up to 29 weeks
Phase 1: Pharmacokinetics of PRA-216: Tmax in healthy volunteers
Time to maximum concentration of drug in plasma following single or multiple doses of PRA-216
Time frame: Up to 29 weeks
Phase 1: Pharmacokinetics of PRA-216: AUC in healthy volunteers
Area under the curve following single or multiple doses of PRA-216
Time frame: Up to 29 weeks
Phase 1: Pharmacokinetics of PRA-216: Cmax in healthy volunteers
Maximum concentration of PRA-216 in plasma following single or multiple doses of PRA-216.
Time frame: Up to 29 weeks
Phase 2a: Incidence, nature, and severity of serious adverse events (SAEs) of PRA-216 in patients with asthma
Incidence, nature, and severity of serious adverse events (SAEs)
Time frame: Up to 29 weeks
Phase 2a: Immunogenicity of PRA-216: ADA in patients with asthma
Incidence and magnitude of anti-drug antibody following drug administration
Time frame: Up to 29 weeks
Phase 2a: Pharmacokinetics of PRA-216: Tmax in patients with asthma
Time to maximum concentration of drug in plasma following multiple doses of PRA-216
Time frame: Up to 29 weeks
Phase 2a: Pharmacokinetics of PRA-216: AUC in patients with asthma
Area under the curve of PRA-216 following multiple doses of PRA-216
Time frame: Up to 29 weeks
Phase 2a: Pharmacokinetics of PRA-216: Cmax in patients with asthma
Maximum concentration in plasma of PRA-216 following multiple doses
Time frame: Up to 29 weeks
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