Related Experiment Video
Updated: Jun 15, 2026

Scaled-Up Preparation of an Intermediate of Upatinib, ACT051-3
Published on: April 7, 2023
Recent developments on JAK2 inhibitors: a patent review
Róbert Kiss1, Peter P Sayeski, György M Keserũ
1Heriot-Watt University, Edinburgh, UK.
Importance Of The Field:
JAK2 is one of the most promising targets against neoplastic growth. A somatic mutation (V617F) resulting in enhanced JAK2 kinase activity can be frequently found in patients with serious myeloproliferative neoplasms such as polycythemia vera, essential thrombocythemia and primary myelofibrosis. Preclinical results strongly support that JAK2 inhibitors could be effectively used in these indications. Pharmaceutical companies and academic groups have developed a number of potent JAK2 inhibitors during the last decade. Tolerability and effectiveness of the most promising compounds are currently being investigated in clinical trials.
Areas Covered In This Review:
In this paper, we aim to give a comprehensive review of the currently available patent literature of JAK2 inhibitors.
What The Reader Will Gain:
We tried to collect the published core structures possessing JAK2 inhibitory potency including compounds developed by academic and industrial research groups. We review the currently available patent literature as well as the key papers containing additional information about the described JAK2 inhibitors. Clinical status data were collected by searching the Prous Integrity and Pharmaprojects databases.
Take Home Message:
The significant number of JAK2 inhibitors published and numerous clinical trials involving these compounds suggest that some of them might be approved in the next few years and can serve as novel drugs for the treatment of JAK2-dependent pathologies.
Insights
Janus kinase 2 (JAK2) inhibitors show promise for treating myeloproliferative neoplasms. Numerous JAK2 inhibitors are in development, with several potentially nearing approval for JAK2-dependent diseases.
Area of Science:
- Medicinal Chemistry
- Oncology
- Pharmacology
Background:
- Janus kinase 2 (JAK2) is a key target for anti-cancer therapies.
- The JAK2 V617F mutation drives myeloproliferative neoplasms like polycythemia vera.
- JAK2 inhibitors are being developed to treat these conditions.
Purpose of the Study:
- To comprehensively review the patent literature for JAK2 inhibitors.
- To consolidate information on JAK2 inhibitors from academic and industrial research.
Main Methods:
- Systematic review of patent literature and scientific publications.
- Database searches (Prous Integrity, Pharmaprojects) for clinical status data.
Main Results:
- Compilation of published JAK2 inhibitor core structures.
- Analysis of patent landscape and key research papers.
- Overview of the clinical progression of JAK2 inhibitors.
Conclusions:
- A substantial number of JAK2 inhibitors are advancing through development.
- Potential for new drug approvals for JAK2-related disorders in the coming years.
Related Concept Videos
The JAK-STAT Signaling Pathway
FDA Approved Drugs: Changes to Approved Drugs
Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions
Drug Products: Biologics, Biosimilars and Interchangeables
Drug Regulation
Inhibition of Cdk Activity
