Actively Recruiting
A Phase 1, Randomized, Placebo-Controlled, Double-Blind, Single and Multiple Ascending Dose Trial of S-4321 in Healthy Volunteers
Led by Seismic Therapeutic AU Pty Ltd · Updated on 2025-04-15
96
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
Sponsors
S
Seismic Therapeutic AU Pty Ltd
Lead Sponsor
A
Avance Clinical Pty Ltd.
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating S-4321 in this first-in-human, phase 1 clinical trial to gather information on its safety, tolerability, and how the body processes and responds to it. The study involves healthy adult volunteers and aims to provide initial data on potential effects and biological activity of S-4321 compared to a placebo. This randomized, double-blind, placebo-controlled study is sponsored by Seismic Therapeutic AU Pty Ltd and includes two parts to test different dosing schedules. The trial has two parts: Part 1 where participants receive single ascending doses of S-4321 or placebo, and Part 2 where participants receive multiple ascending doses, administered either subcutaneously or intravenously. This design allows researchers to carefully monitor how the drug behaves in the body at different dose levels and over time. Both S-4321 and placebo are given under controlled conditions during these periods. Participants are closely monitored through various safety assessments and laboratory tests over about two months. The main focus is on any treatment-related adverse events. Researchers will also measure how much of the drug enters the bloodstream, how long it stays, and how it affects receptor occupancy. Additional evaluations include antibody response against the drug. Participants must be available for the entire study period and follow-up to ensure complete data collection.
CONDITIONS
Brief Title
A Phase 1 Study of S-4321
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Available for the entire duration of the study and follow-up
- Willing and able to comply with all study assessments and protocol schedule
- Voluntarily consents by signing the informed consent form
- Body mass index (BMI) between 18 and 32 kg/m2, inclusive, and weighs at least 45 kg
- In good physical and mental health as determined by the Investigator or delegate
You will not qualify if you...
- History of severe allergic or anaphylactic reaction
- Pregnant, nursing, or planning to become pregnant or breastfeed during the trial
- Known immunodeficiency disorder
- History of malignancy or confirmed cervical dysplasia
- History of HIV or positive HIV test at screening
- Positive laboratory evidence for active hepatitis at screening
- Any condition or prior therapy that may compromise safety, compliance, or study completion as judged by the Investigator or delegate
- Other inclusion/exclusion criteria apply
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Up to several days depending on dosing cohort
Participants receive a single ascending dose of the study drug or placebo to assess safety and tolerability.
1 to multiple visits depending on cohort assignment
Duration - Up to 2 months
Participants receive multiple ascending doses of the study drug or placebo to assess safety, tolerability, and pharmacokinetics.
Weekly visits for up to 8 weeks
Duration - Up to 2 months after final dose
Participants are monitored for safety and potential adverse events after treatment completion.
1 to 2 follow-up visits
Trial Site Locations
Total: 1 location
1
Veritus Research
Bayswater, Victoria, Australia
Actively Recruiting
Research Team
S
Seismic Contact
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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