The global immunotherapy drugs market size is estimated to reach USD 675.98 billion by 2033, registering a CAGR of 11.41% from 2026 to 2033, according to a new report by Grand View Research, Inc. The key factors contributing to the lucrative growth of the industry include increased awareness about chronic diseases including cancer, autoimmune diseases, inflammatory diseases, and infectious diseases, coupled with supportive government policies for drug approval. The rising adoption of targeted therapies for chronic disease treatment is expected to increase inclination toward immunotherapy drugs, thereby driving the industry during the forecast period.
For instance, in May 2022, AstraZeneca and Daiichi Sankyo’s Enhertu (trastuzumab) received U.S. approval for treating HER2-positive breast cancer. Other targeted immunotherapy drugs include Kadcyla (trastuzumab emtansine) and Tecentriq (atezolizumab). In June 2022, F. Hoffmann-La Roche Ltd. received EU approval for Tecentriq as an adjuvant treatment for NSCLC. In addition, developing healthcare infrastructure in low- and middle-income countries coupled with increased research & development by key players is anticipated to contribute to the industry growth. For instance, in December 2021, Novartis AG collaborated with BeiGene, Ltd. for ociperlimab (BGB-A1217), therefore expanding its R&D activities in immune-oncology.
In August 2021, Pfizer, Inc. shared positive results from phase 2b/3 clinical trial of ritlecitinib for treating alopecia areata. Moreover, the rise in the incidence of cancer cases worldwide is expected to drive the demand for immunotherapy drugs. As per Globocan reports, an estimated 19.3 million new oncology cases were diagnosed in 2020. Moreover, according to the European Society of Medical Oncology, cancer incidence in Europe is anticipated to rise by 21% between 2020 and 2040. Thus, approvals of various immunotherapy drugs for cancer treatment are predicted to increase industry growth.
Request a free sample copy or view report summary: Immunotherapy Drugs Market Report
Based on drug type, the monoclonal antibodies segment accounted for the largest share of 56.16% in 2025, driven by their clinical efficacy, high target specificity, and broad applicability across cancer and autoimmune indications.
Based on indication, the cancer segment dominated the market, accounting for 88.42% of the revenue in 2025, driven by high cancer prevalence and widespread adoption of immune-based therapies.
The North America immunotherapy drugs market dominated the global market, with a revenue share of 41.80% in 2025. This strong position is attributable to the high incidence of cancer and autoimmune diseases, which drives the need for effective treatments.
Grand View Research has segmented the global immunotherapy drugs market based on drug type, indication, and region:
Immunotherapy Drugs Drug Type Outlook (Revenue, USD Million, 2021 - 2033)
Monoclonal Antibodies
Immunomodulator
Vaccine
Others
Immunotherapy Drugs Indication Outlook (Revenue, USD Million, 2021 - 2033)
Cancer
Autoimmune Diseases
Infectious Diseases
Others
Immunotherapy Drugs Regional Outlook (Revenue, USD Million, 2021 - 2033)
North America
U.S.
Canada
Mexico
Europe
UK
Germany
France
Italy
Spain
Denmark
Sweden
Norway
Asia Pacific
Japan
China
India
Thailand
South Korea
Australia
Latin America
Brazil
Argentina
Middle East and Africa (MEA)
South Africa
Saudi Arabia
UAE
Kuwait
List of Key Players in the Immunotherapy Drugs Market
Amgen Inc.
Novartis AG
AbbVie Inc.
Pfizer Inc.
F. Hoffmann-La Roche Ltd
Johnson & Johnson Services, Inc.
AstraZeneca
GSK plc.
Sanofi
Bayer AG
"The quality of research they have done for us has been excellent..."