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Tagrisso

N-[2-[2-(dimethylamino)ethyl-methylamino]-4-methoxy-5-[[4-(1-methylindol-3-yl)pyrimidin-2-yl]amino]phenyl]prop-2-enamide · also: Mereletinib, osimertinib, osimertinibum, Osimertinib (AZD9291), AZD 9291(Osimertinib), AZD9291 (Osimertinib)

FormulaC28H33N7O2
Mol. weight499.619
PubChem CID71496458
InChIKeyDUYJMQONPNNFPI-UHFFFAOYSA-N
SMILESCN1C=C(C2=CC=CC=C21)C3=NC(=NC=C3)NC4=C(C=C(C(=C4)NC(=O)C=C)N(C)CCN(C)C)OC
10,065Patents
1,794Research papers
4,740Patents - last 3 years
559Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#AssigneePatents
1Gilead Sciences Inc204
2Bayer AG174
3Dana Farber Cancer Institute Inc129
4Bayer Pharma AG118
5AstraZeneca AB114
6Foundation Medicine Inc103
7Boehringer Ingelheim International GmbH101
8Kymera Therapeutics Inc96
9Institut National de la Santé et de la Recherche Médicale91
10F Hoffmann La Roche AG87

Explore the full landscape

This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

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Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#CodeAreaPatents
1A61PTherapeutic activity (drug indications)8,381
2A61KMedicinal preparations8,068
3C07DHeterocyclic compounds4,482
4C07KPeptides2,449
5C12NMicroorganisms, enzymes972
6C12QMeasuring/testing involving enzymes872
7G01NInvestigating / analysing materials799
8C07BGeneral methods of organic chemistry627
9C07FOrganometallic compounds519
10Y02AClimate change adaptation390

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

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Most-cited patents

Patents ranked by forward citations reveal the foundational inventions the field continues to build on.

TitleYearAssigneeCited by
IMPROVED PROCESS FOR THE PREPARATION OF OSIMERTINIB (AZD9291) OR A SALT THEREOF, AND "AZD9291 ANILINE" OR A SALT THEREOF2017AstraZeneca AB11
A kind of Osimertinib preparation method2017JIANGSU SIMCERE PHARMACEUTICAL CO., LTD.7
OSIMERTINIB FOR USE IN THE TREATMENT OF NON-SMALL CELL LUNG CANCER2019AstraZeneca AB4
AN IMPROVED PROCESS FOR THE PREPARATION OF OSIMERTINIB MESYLATE2021Natco Pharma Ltd3
Anticancer compound osimertinib and synthesis method thereof2016HUANG YANGE2

Where research is gaining momentum

Research themes ranked by publication activity show where scientific interest is accelerating around this compound.

#Research topicPapers
1Lung Cancer Treatments and Mutations12
2Cancer Genomics and Diagnostics1
3Chemical Synthesis and Analysis1
4Chronic Lymphocytic Leukemia Research1
5Epigenetics and DNA Methylation1
6Extracellular vesicles in disease1
7Quinazolinone synthesis and applications1
8RNA modifications and cancer1

Technology trend analysis

Cypris uses AI to connect emerging research themes to IP activity, commercialization signals, and underexplored opportunity areas.

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Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#AuthorAffiliationPapers
1Suresh S. RamalingamEmory University27
2Myung‐Ju AhnSamsung Medical Center24
3James Chih‐Hsin YangNational Taiwan University Hospital21
4Yi‐Long WuGuangdong Academy of Medical Sciences21
5Byoung Chul ChoYonsei University19
6Helena A. YuMemorial Sloan Kettering Cancer Center15
7Pasi A. JänneDana-Farber Cancer Institute15
8Terufumi KatoKanagawa Prefectural Hospital Organization13
9Jia WangShanghai Innovative Research Center of Traditional Chinese Medicine6
10Yong HeDaping Hospital12

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

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The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the molecular composition of Tagrisso?

Tagrisso has the molecular formula C28H33N7O2 with a molecular weight of 499.619. Its chemical name is N-[2-[2-(dimethylamino)ethyl-methylamino]-4-methoxy-5-[[4-(1-methylindol-3-yl)pyrimidin-2-yl]amino]phenyl]prop-2-enamide, and it is also known by the synonyms osimertinib and AZD9291.

Which organizations hold the most patents related to Tagrisso?

The leading patent holders are Gilead Sciences Inc with 204 patents, Bayer AG with 174 patents, Dana Farber Cancer Institute Inc with 129 patents, Bayer Pharma AG with 118 patents, and AstraZeneca AB with 114 patents.

What are the main research areas covered in literature on this compound?

The primary research focus is Lung Cancer Treatments and Mutations, which covers 12 papers. Other topics include Cancer Genomics and Diagnostics, Chemical Synthesis and Analysis, Chronic Lymphocytic Leukemia Research, Epigenetics and DNA Methylation, Extracellular vesicles in disease, Quinazolinone synthesis and applications, and RNA modifications and cancer.

What are the most-cited foundational papers on this compound?

The most frequently cited papers include 'Activating Mutations in the Epidermal Growth Factor Receptor Underlying Responsiveness of Non–Small-Cell Lung Cancer to Gefitinib' (11,548 citations), 'Osimertinib in Untreated EGFR-Mutated Advanced Non–Small-Cell Lung Cancer' (5,380 citations), 'Osimertinib or Platinum–Pemetrexed in EGFR T790M–Positive Lung Cancer' (3,359 citations), and 'Overall Survival with Osimertinib in Untreated, EGFR-Mutated Advanced NSCLC' (2,876 citations).

How has patent activity for this compound evolved recently?

Patent filings have grown substantially in recent years, rising from 63 patents in 2016 to 2,253 patents in 2024. The most significant growth occurred from 2021 onward, with 712 patents in 2021 increasing to 1,922 in 2022 and continuing at elevated levels through 2024. The compound is also covered by patents from multiple assignees including a 2017 process patent from AstraZeneca AB and a 2019 treatment patent from AstraZeneca AB.

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