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ABCL575

Phase 1

Healthy Volunteers | Monoclonal antibody | Other |AbCellera Biologics Inc.|Trials Updated: Jun 16, 2026

Development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Aug 2025

Target and mechanism

Molecular targetOX40L
ModalityMonoclonal antibody

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment40

FDA Designations

No designations recorded

Clinical trial landscape

ABCL575 · 1 trial · 1 indication

Phase 1 1
NCT07108894A First-in-Human Phase 1 Single-Ascending Dose Study of ABCL575 in Healthy ParticipantsHealthy Volunteers
ACTIVE NOT_RECRUITING40 Analytics
PHASE1ACTIVE NOT_RECRUITING
A First-in-Human Phase 1 Single-Ascending Dose Study of ABCL575 in Healthy Participants
Healthy VolunteersUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence, frequency, and severity of adverse events (AEs)
Day 0 to day 337
Changes from baseline in laboratory parameters including general biochemistry, lipid profile, coagulation, hematology, and urinalysis
Day 0 to day 337
Changes from baseline in physical examination
Day 0 to day 337
Changes from baseline in vital signs
Day 0 to day 337
Changes from baseline in 12-lead safety ECGs
Day 0 to day 337
Incidence and severity of injection site reactions
Day 0 to day 337

Secondary Endpoints

Plasma concentrations of ABCL575
Day 0 to day 337
Incidence of anti-ABCL575 antibodies
Day 0 to day 337
PK parameters; maximum plasma concentration (Cmax)
Day 0 to day 337
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ABCL575EXPERIMENTALHealthy participants will receive a single dose of ABCL575 administered by subcutaneous (SC) injection
PlaceboPLACEBO_COMPARATORHealthy participants will receive a single dose of placebo administered by subcutaneous (SC) injection

Interventions

NameTypeDescription
ABCL575BIOLOGICALParticipants will receive SC injection of ABCL575
Placebo (Normal Saline 0.9%)BIOLOGICALParticipants will receive SC injection of placebo (Normal Saline 0.9%)
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy male or female ≥ 18 and ≤ 65 years of age at the time of screening * Good general health as determined through medical history and general physical examination * Body weight ≥ 50 and ≤ 100 Kg * Body mass index (BMI) between 18.5 kg/m2 and 30.0 kg/m2 * Non- or ex-smoker...

Countries:Canada
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Frequently asked questions about ABCL575

What is ABCL575 used for?

ABCL575 is an investigational monoclonal antibody being studied in healthy volunteers. It is currently in a Phase 1 first-in-human clinical trial to evaluate its safety, tolerability, and pharmacokinetics. The drug is not approved for any condition and is in early clinical development.

What does ABCL575 target?

ABCL575 targets OX40L, a protein involved in immune system regulation. By binding to OX40L, the antibody may modulate immune responses. This mechanism is being investigated in a Phase 1 study in healthy participants to assess its safety and pharmacological profile.

Who is developing ABCL575?

ABCL575 is being developed by AbCellera Biologics Inc., a biotechnology company listed on the NASDAQ under the ticker symbol ABCL. The company is conducting a Phase 1 clinical trial of ABCL575 in healthy volunteers in Canada.

What phase is ABCL575 in?

ABCL575 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing Phase 1 study is a first-in-human, single-ascending-dose trial designed to evaluate the drug's safety and tolerability in healthy participants.

What clinical trials is ABCL575 in?

ABCL575 is being studied in a Phase 1 clinical trial with the identifier NCT07108894. This is a first-in-human, single-ascending-dose study in healthy participants, with an enrollment of 40 individuals. The trial is active but not recruiting, and is being conducted in Canada.

Is ABCL575 the same as OX40L antibody?

ABCL575 is an antibody that targets OX40L, but it is a distinct investigational drug. It is not known by any alternative names. The drug is being developed by AbCellera Biologics and is currently in Phase 1 testing in healthy volunteers.