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A Phase 1, SAD and MAD to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Oral FB-101 in Healthy Adult Male Subjects

A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Single-Ascending Dose and Multiple-Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Oral FB-101 in Healthy Adult Male Subjects

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07126704
Enrollment
72
Registered
2025-08-17
Start date
2027-01-01
Completion date
2028-03-01
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

This is a Phase 1, randomized, double-blind, placebo-controlled study consisting of SAD and MAD investigation at a single clinical trial center conducted in healthy adult male subjects assessing the safety, tolerability, PK, and PD of oral FB-101 administration. Up to 72 healthy adult male subjects will be enrolled. Additional subjects may be enrolled (8 subjects per cohort) if it is deemed appropriate following review (e.g., in the circumstances where a dose level is repeated, or an intermediate dose is conducted or to add another dose level(s) (higher than those planned)).

Interventions

DRUGFB-101

FB-101 10mg

DRUGPlacebo for FB-101

Placebo for FB-101

Sponsors

1ST Biotherapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
MALE
Age
19 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: 1. Healthy, adult, male 19-55 years of age, inclusive, at screening. 2. A continuous non-smoker who has not used nicotine-containing products for at least 3 months prior to (the first) dosing and throughout the study, based on subject self-reporting. 3. Body mass index (BMI) ≥ 18.5 and ≤ 30.0 kg/m2 at screening. 4. Medically healthy with no clinically significant medical history, physical examination, neurological examination, ophthalmic examination, clinical laboratory profiles, vital signs, or safety 12-lead ECGs, as deemed by the PI or designee. 5. A non-vasectomized, male subject must agree to use a condom with spermicide or abstain from sexual intercourse during the study until 90 days after (the last) dosing. (No restrictions are required for a vasectomized male provided his vasectomy has been performed 4 months or more prior to (the first) dosing of the investigational product. A male who has been vasectomized less than 4 months prior to study (first) dosing must follow the same restrictions as a non-vasectomized male). 6. Must agree not to donate sperm from the first dosing until 90 days after the last dosing. 7. Able to swallow multiple capsules. Key

Exclusion criteria

1. Is mentally or legally incapacitated or has significant emotional problems at the time of the screening visit or expected during the conduct of the study. 2. History or presence of clinically significant medical or psychiatric condition or disease in the opinion of the PI or designee. 3. Is at suicidal risk in the opinion of the PI or designee. 4. History of any illness that, in the opinion of the PI or designee, might confound the results of the study or pose an additional risk to the subject by their participation in the study.

Design outcomes

Primary

MeasureTime frameDescription
Number and severity of TEAEsup to 2 monthNumber and severity of TEAEs following single ascending oral doses of FB-101 compared to placebo in healthy adult male subjects.

Countries

South Korea

Contacts

CONTACTIn Jin Jang, MD, Ph.D.
ijjang@snu.ac.kr+8227408290

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026