Rising Updates in the Clinical Development of Epacadostat and Other Types of Indoleamine 2,3-Dioxygenase 1 Inhibitors (IDO1) for Human Cancers

Published: May 2022

The global indoleamine 2,3 dioxygenase 1 market is anticipated to grow at a substantial CAGR during the forecast period. Immunotherapy's recent application in clinical oncology has changed the way we treat advanced human tumors. Immunotherapeutic drugs targeting the CTLA4 and PD-1/PD-L1 axis are currently available to treat a range of malignancies. However, to further improve patient outcomes with these medications, a unique treatment approach is required. indoleamine 2,3-dioxygenase 1 (IDO1) is a rate-limiting enzyme in the peripheral tissue metabolism of the essential amino acid tryptophan. 

Browse the full report description of “Global Indoleamine 2,3 Dioxygenase 1 Market Size, Share, and Trends Analysis Report by Type (BMS-986205, Dcellvax, Epacadostat, F-001287, Galanal, and Others), and by Application (Alopecia, Cervical Cancer, Gastric Cancer, Glioma, and Others) Forecast Period (2022-2028)” at https://www.omrglobal.com/industry-reports/indoleamine-2-3-dioxygenase-1-market

In human cancer cells, IDO1 is overexpressed, suppressing effector T cell function while promoting regulatory T cells (Tregs). In different kinds of human cancer, IDO1 overexpression is linked to poor patient survival. These data suggest that IDO1 is a viable target in the field of immuno-oncology, with the potential to improve therapy outcomes. In the last few years, many orally accessible IDO1 inhibitors, notably Epacadostat, have entered human clinical trials with no notable safety concerns. PD-1 inhibitors in combination appear to be more effective than PD-1 inhibitors alone, notwithstanding the lack of objective response in single-agent trials. In the recent phase III ECHO 301 study in melanoma, the combination of Epacadostat with Pembrolizumab did not show a better outcome than Pembrolizumab alone. Other phases III trials involving IDO1 inhibitors were halted as a result of this.

Market Coverage

The market number available for – 2021-2028

Base year- 2021

Forecast period- 2022-2028

Segment Covered- 

o By Type

o By Application

Regions Covered-

o North America

o Europe

o Asia-Pacific

o Rest of the World

Competitive Landscape- including Bristol-Myers Squibb, Merck KGaA, BirchBioMed Inc., Genentech Inc., F. Hoffmann-La Roche Ltd., and others.

Key questions addressed by the report

What is the market growth rate?

That segment and region dominate the market in the base year?

That segment and region will project the fastest growth in the market?

How does COVID-19 impact the market?

o Deviation from the pre-COVID-19 forecast

o Most affected region and segment

Who is the leader in the market?

How are players addressing challenges to sustain growth?

Where is the investment opportunity?

Global Indoleamine 2,3 Dioxygenase 1 Market Report by Segment

By Type

  • BMS-986205
  • Dcellvax
  • Epacadostat
  • F-001287
  • Galanal
  • Others

By Application

  • Alopecia
  • Cervical Cancer
  • Gastric Cancer
  • Glioma
  • Others

Global Indoleamine 2,3 Dioxygenase 1 Market Report Segment by Region

North America

US

Canada

Europe

UK

Germany

Italy

Spain

France

Rest of Europe 

Asia-Pacific

China

India

Japan

South Korea

Rest of Asia-Pacific 

Rest of the World

Latin America 

Middle East and Africa


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