Study to Evaluate HT-4253 in Healthy Subjects
A Phase 1, First-in-Human, Randomized, Placebo-Controlled, Double-Blind Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single Ascending Doses (SAD) and Multiple Ascending Doses (MAD) of Oral HT-4253 in Healthy Adults
1 other identifier
interventional
80
1 country
1
Brief Summary
The primary objectives of this study are to evaluate the safety and tolerability of HT-4253 when administered as single oral doses and multiple oral doses at escalating dose levels in healthy volunteer subjects. The secondary objectives of this study are to characterize the pharmacokinetics (PK) and pharmacodynamics (PD) of HT-4253.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Sep 2024
Shorter than P25 for phase_1
1 active site
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
First Submitted
Initial submission to the registry
July 30, 2024
CompletedFirst Posted
Study publicly available on registry
August 5, 2024
CompletedStudy Start
First participant enrolled
September 17, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 12, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
May 12, 2025
CompletedJune 11, 2025
June 1, 2025
8 months
July 30, 2024
June 6, 2025
Conditions
Outcome Measures
Primary Outcomes (4)
To evaluate the safety and tolerability of single and multiple ascending doses of oral HT-4253 in healthy adults
Incidence of adverse events (AEs)
up to 6 weeks
To evaluate the safety and tolerability of single and multiple ascending doses of oral HT-4253 in healthy adults
Serious adverse events (SAEs)
up to 6 weeks
To evaluate the safety and tolerability of single and multiple ascending doses of oral HT-4253 in healthy adults
Treatment-related adverse events (TRAEs)
up to 6 weeks
To evaluate the safety and tolerability of single and multiple ascending
Incidence of withdrawals due to AE
up to 6 weeks
Secondary Outcomes (4)
To evaluate the plasma pharmacokinetics (PK) of single and multiple ascending doses of oral HT-4253 in healthy adults
up to 6 weeks
To evaluate the plasma pharmacokinetics (PK) of single and multiple ascending doses of oral HT-4253 in healthy adults
up to 6 weeks
To evaluate the plasma pharmacokinetics (PK) of single and multiple ascending doses of oral HT-4253 in healthy adults
up to 6 weeks
To evaluate the plasma pharmacokinetics (PK) of single and multiple ascending doses of oral HT-4253 in healthy adults
up to 6 weeks
Study Arms (2)
HT-4253
EXPERIMENTALSubjects will participate in 1 of 10 groups and receive single or multiple doses of HT-4253 or matching placebo. In each group 6 subjects will receive HT-4253.
Placebo to match HT-4253
PLACEBO COMPARATORSubjects will participate in 1 of 10 groups and receive single or multiple doses of HT-4253 or matching placebo. In each group 2 subjects will receive matching placebo.
Interventions
Eligibility Criteria
You may qualify if:
- Age is ≥ 18 years to 65 years
- Body mass index between 18 and 32 kg/m2
- Female subjects must be surgically sterile or post menopausal for at least 12 months. Females may be of child-bearing potential but must use double contraception.
You may not qualify if:
- Any clinically significant central nervous system, cardiac, pulmonary, renal, gastrointestinal, endocrinological, respiratory, or metabolic conditions (or history), or other pathological or physiological conditions,
- History of suicidal behavior and/or ongoing suicidal ideation per C-SSRS evaluation when screening
- Use of any medications, including prescription, over-the-counter (OTC) medications, vitamins, herbal preparations, and supplements
- Positive drug screen or alcohol breath tests
- History of heavy smoking more than 10 cigarettes a day or the tobacco/nicotine equivalent within 3 months of Screening or refuses to abstain from tobacco or nicotine-containing products throughout the duration of the study
- Clinical significant abnormalities in laboratory test results
- Chronic or current active infectious disease
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CMAX Clinical Research
Adelaide, South Australia, 5000, Australia
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 30, 2024
First Posted
August 5, 2024
Study Start
September 17, 2024
Primary Completion
May 12, 2025
Study Completion
May 12, 2025
Last Updated
June 11, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will not share