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ABP 959

Amgen · Phase 3 active Small molecule

ABP 959 is a RANKL inhibitor that blocks osteoclast activation and bone resorption.

ABP 959 is a RANKL inhibitor that blocks osteoclast activation and bone resorption. Used for Giant cell tumor of bone, Bone metastases.

At a glance

Generic nameABP 959
Also known asTreatment T
SponsorAmgen
Drug classRANKL inhibitor
TargetRANKL
ModalitySmall molecule
Therapeutic areaBone metabolism / Oncology
PhasePhase 3

Mechanism of action

ABP 959 targets RANKL (receptor activator of nuclear factor kappa-B ligand), a key mediator of osteoclast differentiation and activation. By inhibiting RANKL signaling, the drug reduces bone resorption and is being developed for conditions characterized by excessive bone loss. This mechanism is similar to denosumab, an established RANKL inhibitor.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results