Clinical-Stage BiopharmaceuticalNASDAQ: INBX

Precision biologics for oncology and rare diseases

We engineer multivalent, multispecific therapeutics using our proprietary single-domain antibody platform — designed to act precisely within the tumor microenvironment.

Core Technology

The sdAb platform: precision at the molecular level

Our single-domain antibody (sdAb) platform enables the creation of multivalent and multispecific biologics — molecules engineered to engage multiple targets simultaneously with exceptional precision. Unlike conventional antibodies, sdAbs are smaller, more stable, and uniquely suited to penetrate the complex architecture of the tumor microenvironment.

sdAb
Single-domain antibody platform
Multi-specific
Simultaneous multi-target engagement
TME
Tumor microenvironment precision
Single-domain antibody molecular structure visualization

Research Pipeline

Programs advancing across oncology and rare disease

ProgramTargetIndicationAreaStage
INBRX-109
Tetravalent DR5 agonist antibody targeting chondrosarcoma and other solid tumors
DR5 Agonist
Chondrosarcoma
Oncology
Phase 2
INBRX-106
Hexavalent OX40 agonist designed to potently activate T cells within the tumor microenvironment
OX40 Agonist
Solid Tumors
Oncology
Phase 1
INBRX-105
Bispecific antibody combining PD-L1 checkpoint blockade with 4-1BB co-stimulation
PD-L1 x 4-1BB
Solid Tumors
Oncology
Phase 1
INBRX-175
Bispecific targeting the 'don't eat me' signal and immune checkpoint in blood cancers
CD47 x PD-L1
Hematologic Malignancies
Oncology
Phase 1
INBRX-115
Next-generation rare disease program leveraging the sdAb platform for targeted delivery
PD-L1 x 4-1BB
Rare Diseases
Rare Disease
Preclinical
5
5 active programs across oncology and rare disease

Our Story

Born from a landmark deal. Built for what comes next.

Inhibrx Biosciences was established in January 2024 following the sale of INBRX-101 to Sanofi — a transaction that validated our platform and funded our future. Headquartered in La Jolla, California, we are a focused team of scientists and drug developers committed to translating the biology of the tumor microenvironment into medicines that matter.

Founded January 2024
La Jolla, California
NASDAQ: INBX

Advancing the science of targeted biologics

Explore our pipeline programs and the platform technology that makes them possible.

Inhibrx Biosciences

A clinical-stage biopharmaceutical company developing novel biologic therapeutics for oncology and rare diseases through our proprietary sdAb platform.

NASDAQ: INBXLa Jolla, CA

© 2026 Inhibrx Biosciences, Inc. All rights reserved.

This website contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements involve known and unknown risks and uncertainties that may cause actual results to differ materially. Inhibrx Biosciences, Inc. undertakes no obligation to update any forward-looking statements.