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FB102 Single dose

Phase 1

Healthy Volunteer | Small molecule | Other |Forte Biosciences, Inc.|Last Updated: Aug 19, 2026

Target and mechanism

Molecular targetCD122
Target classProtein
ModalitySmall molecule

Also known as FB102

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment48

FDA Designations

FAST_TRACK

Clinical trial landscape

FB102 Single dose · 1 trial · 1 indication

Phase 1 1
NCT07623057A Study Testing the Safety and Effects of FB102 in Healthy VolunteersHealthy Volunteer
RECRUITING48 Analytics
PHASE1RECRUITING
A Study Testing the Safety and Effects of FB102 in Healthy Volunteers
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Study Endpoints

Primary Endpoints

Incidence, severity, and relationship to treatment of treatment-emergent adverse events (TEAEs)
From day 1 to Day 85 (End of treatment visit)
Incidence, severity, and relationship to treatment of SAEs
From day 1 to Day 85 (End of treatment visit)

Secondary Endpoints

Plasma PK parameters for single dose- maximum serum concentration (Cmax)
Day 1,2,3,4,5,8,15,22,36,50,85
Plasma PK parameters for single dose- time to maximum concentration (Tmax)
Day 1,2,3,4,5,8,15,22,36,50,85
Plasma PK parameters for Multiple dose- maximum serum concentration (Cmax)
Days 1 and 22
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
FB102 Single doseEXPERIMENTALPart A (single ascending dose, SAD), FB102 will be administered as a single dose.
FB102 Multiple doseEXPERIMENTALPart B (multiple ascending dose, MAD), FB102 will be administered once weekly for 4 doses.
FB102 PlaceboPLACEBO_COMPARATORThe placebo will be administered on the same schedule as the corresponding FB-102 cohort.

Interventions

NameTypeDescription
FB102 Single doseDRUGFB102 will be administered as a single dose
FB102 Multiple dosesDRUGFB102 will be administered once weekly for 4 doses.
FB102 PlaceboDRUGMatching placebo identical to FB102 formulation but without the active pharmaceutical ingredient
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Eligibility Criteria

Age Range18 Years to 60 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: 1. Body mass index (BMI) between 18.0 and 32.0 kg/m2, inclusive, at Screening. 2. Weight ≥50 kg and ≤100kg. 3. Men are required to agree to practice true abstinence; be surgically sterilized (performed at least 6 months prior and documented to no longer produce sperm - verbal co...

Countries:Australia
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Recent Changes (Last 90 Days)

LOWAug 20, 2026NCT07623057Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 20, 2026NCT07623057Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 20, 2026NCT07623057Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 20, 2026NCT07623057Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about FB102 Single dose

What is FB102 used for?

FB102 is an investigational small molecule being developed for dermatologic and autoimmune conditions, including non-segmental vitiligo, severe to very severe alopecia areata, and celiac disease. It is also being studied in healthy volunteers to assess safety and effects. FB102 is currently in clinical development and is not yet approved by the FDA.

What does FB102 target?

FB102 targets CD122, a protein that is part of the interleukin-2 receptor. By targeting CD122, FB102 is designed to modulate immune responses relevant to autoimmune diseases. This mechanism is being evaluated in clinical trials for conditions such as vitiligo, alopecia areata, and celiac disease.

Who is developing FB102?

FB102 is being developed by Forte Biosciences, Inc., a biopharmaceutical company traded on NASDAQ under the ticker FBRX. The company is conducting clinical trials to evaluate the safety and efficacy of FB102 in multiple indications, including vitiligo, alopecia areata, and celiac disease.

What phase is FB102 in?

FB102 is in Phase 1 and Phase 2 clinical development. Phase 1 trials are recruiting for vitiligo, alopecia areata, and healthy volunteer studies, while a Phase 2 trial is recruiting for celiac disease. FB102 has received Fast Track designation from the FDA, but it remains investigational and is not yet approved.

What clinical trials is FB102 in?

FB102 is being studied in four recruiting trials: NCT06905873, a Phase 1 study in non-segmental vitiligo (64 participants); NCT06982963, a Phase 2 study in celiac disease (100 participants); NCT07205159, a Phase 1 study in severe to very severe alopecia areata (32 participants); and NCT07623057, a Phase 1 study in healthy volunteers (48 participants).

Is FB102 the same as FB102 Single dose?

Yes, FB102 is also known as FB102 Single dose. This alternative name may be used in some contexts to refer to the same investigational drug being developed by Forte Biosciences for conditions such as vitiligo, alopecia areata, and celiac disease.