Study of PRA-216 in Healthy Participants and Participants With Mild-to-Moderate Asthma
A Phase 1 Randomized, Double-Blind, Placebo-Controlled, Single Ascending and Multiple Ascending Dose Study Investigating PRA-216 in Healthy Volunteers Followed by a Phase 2a Randomized, Double-Blind, Placebo-Controlled Study in Participants With Mild-to-Moderate Asthma
1 other identifier
interventional
96
2 countries
7
Brief Summary
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 was determined from Phase 1.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Nov 2025
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 4, 2025
CompletedFirst Submitted
Initial submission to the registry
November 17, 2025
CompletedFirst Posted
Study publicly available on registry
November 24, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 31, 2027
March 20, 2026
March 1, 2026
11 months
November 17, 2025
March 18, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Phase 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)
Up to Study Day 169
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)
up to Study Day 169
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.
Up to Study Day 57
Secondary Outcomes (9)
Phase 1: Immunogenicity of PRA-216: ADA in healthy volunteers
Up to Study Day 169
Phase 1: Pharmacokinetics of PRA-216: Tmax in healthy volunteers
Up to Study Day 169
Phase 1: Pharmacokinetics of PRA-216: AUC in healthy volunteers
Up to Study Day 169
Phase 1: Pharmacokinetics of PRA-216: Cmax in healthy volunteers
Up to Study Day 169
Phase 2a: Incidence, nature, and severity of serious adverse events (SAEs) of PRA-216 in patients with asthma
Up to Study Day 197
- +4 more secondary outcomes
Study Arms (6)
Phase 1, Part 1: SAD Cohorts: Active Drug
EXPERIMENTALHealthy volunteers will receive a single dose of PRA-216 in a dose escalation format.
Phase 1, Part 1: SAD Cohorts: Placebo
PLACEBO COMPARATORHealthy volunteers will receive a single dose of placebo
Phase 1, Part 2: MAD Cohort: Active Drug
EXPERIMENTALHealthy volunteers will receive repeated doses of PRA-216 in a dose escalation format.
Phase 1, Part 2 MAD Cohort: Placebo Comparator
PLACEBO COMPARATORHealthy volunteers will receive repeated doses of placebo comparator.
Phase 2a: Participants with mild to moderate asthma-active drug
EXPERIMENTALParticipants with mild to moderate asthma will be randomized to receive repeat doses of PRA-216.
Phase 2a: Participants with mild to moderate asthma-placebo
PLACEBO COMPARATORParticipants with mild to moderate asthma will be randomized to receive repeat doses of placebo.
Interventions
matching placebo for PRA-216
biologic
Eligibility Criteria
You may qualify if:
- Age 18-65
- Must be in good health with no significant medical history
- Willing and able to attend all study visits, comply with study requirements
- Able and willing to provide written informed consent
You may not qualify if:
- Evidence of clinically significant condition or disease
- Any physical or psychological condition that prohibits study completion
- Known history of illicit drug use or drug abuse, harmful alcohol use (at the Investigator's discretion), alcoholism, and/or smoking or nicotine-containing product use within 3 months prior to the first dose of study agent
- History of severe allergic reactions or hypersensitivity
- Donation or loss of ≥ 1 unit of whole blood or plasma within 2 months prior to dosing
- Phase 2a
- Age 18-65
- Must be in good health with no significant medical history
- Willing and able to attend all study visits, comply with study requirements.
- Able and willing to provide written informed consent
- Documented asthma diagnosis prior for at least 12 months prior to screening.
- Symptomatic asthma
- Currently receiving maintenance asthma medications
- Evidence of clinically significant condition or disease
- Known history of illicit drug use or drug abuse, harmful alcohol use (at the Investigator's discretion), alcoholism, and/or smoking or nicotine-containing product use within 3 months prior to the first dose of study agent
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (7)
Emertitus Research Sydney
Botany, New South Wales, 2019, Australia
Emeritus Research Camberwell
Camberwell, Victoria, 3124, Australia
Linear
Joondalup, Western Australia, 6027, Australia
Linear
Nedlands, Western Australia, 6009, Australia
PCRN Waikato, Nawton
Hamilton, Auckland, 3200, New Zealand
Pacific Clinical Research Network-Auckland
Takapuna, Auckland, 0622, New Zealand
PCRN Wellington, Ebdentown
Upper Hutt, Auckland, 5018, New Zealand
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 17, 2025
First Posted
November 24, 2025
Study Start
November 4, 2025
Primary Completion (Estimated)
October 1, 2026
Study Completion (Estimated)
January 31, 2027
Last Updated
March 20, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share