MedPath

Zanubrutinib

Generic Name
Zanubrutinib
Brand Names
Brukinsa
Drug Type
Small Molecule
Chemical Formula
C27H29N5O3
CAS Number
1691249-45-2
Unique Ingredient Identifier
AG9MHG098Z

Overview

Zanubrutinib is a novel Bruton's tyrosine kinase (BTK) inhibitor used for the treatment of adult patients with mantle cell lymphoma (MCL) who have received at least one prior therapy. Mantle cell lymphoma is an aggressive mature B-cell non-Hodgkin lymphoma associated with early relapse, poor clinical outcomes, and long-term survival. BTK is an enzyme that plays a role in oncogenic signalling pathways, promoting the survival and proliferation of malignant B cells. Compared to the first-generation BTK inhibitor ibrutinib, zanubrutinib displays higher potency and selectivity for BTK with fewer off-target effects. Due to this enhanced selectivity towards BTK, zanubrutinib belongs to the second-generation BTK inhibitor drug group that also includes acalabrutinib, which was approved by the FDA in 2017. Zanubrutinib was granted accelerated approval by the FDA in November 2019 based on clinical trial results that demonstrated an 84% overall response rate from zanubrutinib therapy in patients with MCL, which measures the proportion of patients in a trial whose tumour is entirely or partially destroyed by a drug. It is currently marketed under the trade name BRUKINSA™ and is available as oral capsules. In August 2021, the FDA granted accelerated approval to zanubrutinib for the treatment of adults with Waldenström’s macroglobulinemia. This indication is valid in the US, Europe, and Canada. In September 2021, zanubrutinib was granted another accelerated approval for the treatment of relapsed or refractory marginal zone lymphoma who have received at least one anti-CD20-based regimen. In October 2022, the EMA's Committee for Medicinal Products for Human Use (CHMP) recommended zanubrutinib be granted marketing authorization for the treatment of chronic lymphocytic leukemia.

Background

Zanubrutinib is a novel Bruton's tyrosine kinase (BTK) inhibitor used for the treatment of adult patients with mantle cell lymphoma (MCL) who have received at least one prior therapy. Mantle cell lymphoma is an aggressive mature B-cell non-Hodgkin lymphoma associated with early relapse, poor clinical outcomes, and long-term survival. BTK is an enzyme that plays a role in oncogenic signalling pathways, promoting the survival and proliferation of malignant B cells. Compared to the first-generation BTK inhibitor ibrutinib, zanubrutinib displays higher potency and selectivity for BTK with fewer off-target effects. Due to this enhanced selectivity towards BTK, zanubrutinib belongs to the second-generation BTK inhibitor drug group that also includes acalabrutinib, which was approved by the FDA in 2017. Zanubrutinib was granted accelerated approval by the FDA in November 2019 based on clinical trial results that demonstrated an 84% overall response rate from zanubrutinib therapy in patients with MCL, which measures the proportion of patients in a trial whose tumour is entirely or partially destroyed by a drug. It is currently marketed under the trade name BRUKINSA™ and is available as oral capsules. In August 2021, the FDA granted accelerated approval to zanubrutinib for the treatment of adults with Waldenström’s macroglobulinemia. This indication is valid in the US, Europe, and Canada. In September 2021, zanubrutinib was granted another accelerated approval for the treatment of relapsed or refractory marginal zone lymphoma who have received at least one anti-CD20-based regimen. In October 2022, the EMA's Committee for Medicinal Products for Human Use (CHMP) recommended zanubrutinib be granted marketing authorization for the treatment of chronic lymphocytic leukemia.

Indication

Zanubrutinib is indicated for the treatment of:

Associated Conditions

  • Chronic Lymphocytic Leukemia
  • Mantle Cell Lymphoma (MCL)
  • Refractory Marginal Zone Lymphoma
  • Relapsed Marginal Zone Lymphoma
  • Small Lymphocytic Lymphoma
  • Waldenström's Macroglobulinemia (WM)

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2025/06/10
Phase 2
Not yet recruiting
Shanghai Zhongshan Hospital
2025/06/04
Phase 2
Not yet recruiting
2025/05/15
Phase 2
Not yet recruiting
2025/04/24
Not Applicable
Not yet recruiting
2025/03/05
Phase 1
Not yet recruiting
City of Hope Medical Center
2025/03/03
Phase 2
Not yet recruiting
Christine Ryan
2025/02/27
Phase 2
Not yet recruiting
2025/02/26
Phase 2
Recruiting
2025/02/21
Phase 2
Recruiting
2025/02/13
Phase 1
Recruiting

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
BEIGENE USA, INC.
72579-011
ORAL
80 mg in 1 1
3/8/2024

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
BeOne Medicines Ireland Limited,10 Earlsfort Terrace,Dublin 2,D02 T380,Co. Dublin,Ireland
Authorised
11/22/2021
Authorised
11/22/2021
Authorised
11/22/2021
BeOne Medicines Ireland Limited,10 Earlsfort Terrace,Dublin 2,D02 T380,Co. Dublin,Ireland
Authorised
11/22/2021
Authorised
11/22/2021
Authorised
11/22/2021

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
BRUKINSA™ CAPSULE 80MG
SIN16341P
CAPSULE
80mg
10/1/2021

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
Zanubrutinib Capsules
国药准字H20200005
化学药品
胶囊剂
6/2/2020

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
No PPB approvals found for this drug.

TGA Drug Approvals

Approved Product
ARTG ID
Sponsor
Registration Type
Status
Registration Date
BRUKINSA zanubrutinib 80 mg capsule bottle
338475
Medicine
A
10/7/2021
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