Drug

BIIB021

As of the edition of 20 October 2026, BIIB021 is a small molecule: went quiet in 2011; acts on HSP90AA1 and HSP90AB1.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Went quiet, 2011
Kind
Small molecule
Registered trials
6, 1 stopped early
Disease areas
Cancer; Blood and lymph; Immune system; Skin and connective tissue; Digestive system

US protection

No US approval on record.

With no US approval on record there are no listed US patents or exclusivities.

This is the US only.

Companies that need a new molecule because of this drug

2 company-target rows on route A because of this drug.

Companies on route A for this drug

In the product

2 company-target rows are on route A because of BIIB021.

Targets

GeneProteinUniProt
HSP90AA1Heat shock protein HSP 90-alphaP07900
HSP90AB1Heat shock protein HSP 90-betaP08238

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase 14301
Phase 22200
All trials6

Who ran its trials

CompanyRoleYears
BiogenLead sponsor of trials2006 to now