Besponsa

inotuzumab ozogamicin · Pfizer Europe MA EEIG
ORPHAN AUTHORISED IN THE EU

What Besponsa is used for

Besponsa is indicated as monotherapy for the treatment of adults with relapsed or refractory CD22-positive B cell precursor acute lymphoblastic leukaemia (ALL). Adult pPatients with Philadelphia chromosome positive (Ph+) relapsed or refractory B cell precursor ALL should have failed treatment with at least 1 tyrosine kinase inhibitor (TKI). Besponsa is indicated as monotherapy for paediatric patients 1 year and older with CD22-positive B cell precursor ALL: in first relapse after allo-haematopoietic stem cell transplant (HSCT); after any first relapse in patients with Very High Risk (VHR) disease (see section 5.1); after a second or greater relapse; and in those with refractory disease. Patients with Philadelphia chromosome positive (Ph+) disease should have exhausted relevant BCR-ABL targeting treatment options.

Approved use, as published by the European Medicines Agency.

What the labels mean

  • Orphan medicine: for a rare disease (affecting no more than 5 in 10,000 people in the EU).

Key facts

Brand
Besponsa
Active substance
inotuzumab ozogamicin
Disease area
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Medicine group
Antineoplastic agents
ATC code
L01FB01
Marketing authorisation holder
Pfizer Europe MA EEIG
Authorised in the EU since
2017

Official information

In the USA

Same active substance: Besponsa

Specialist medicine: started and supervised by a specialist doctor or hospital. This page is a plain-language summary of public official information, not medical advice; follow your doctor and the official product information.

Common questions

What is Besponsa used for?

Besponsa is indicated as monotherapy for the treatment of adults with relapsed or refractory CD22-positive B cell precursor acute lymphoblastic leukaemia (ALL). Adult pPatients with Philadelphia chromosome positive (Ph+) relapsed or refractory B cell precursor ALL should have failed treatment with at least 1 tyrosine kinase inhibitor (TKI). Besponsa is indicated as monotherapy for paediatric patients 1 year and older with CD22-positive B cell precursor ALL: in first relapse after allo-haematopoietic stem cell transplant (HSCT); after any first relapse in patients with Very High Risk (VHR) dise…

What is the active substance in Besponsa?

Besponsa contains inotuzumab ozogamicin.

Who makes Besponsa?

The EU marketing authorisation holder is Pfizer Europe MA EEIG.

Is Besponsa an orphan medicine?

Yes. Besponsa is designated an orphan medicine in the EU, for a rare disease (Precursor Cell Lymphoblastic Leukemia-Lymphoma).

Source: European Medicines Agency medicines data (ema.europa.eu), reproduced with acknowledgement of the source. Page made 5 November 2026 by Satya Babu.

← All specialty medicines, EU

For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.