Last update 01 Jul 2026

Abemaciclib

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Abemaciclib (JAN/USAN), Abemaciclib mesylate, Bemaciclib
+ [8]
Action
inhibitors
Mechanism
CDK4 inhibitors(Cyclin-dependent kinase 4 inhibitors), CDK6 inhibitors(Cyclin-dependent kinase 6 inhibitors)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
RegulationBreakthrough Therapy (United States), Fast Track (United States), Special Review Project (China), Priority Review (China)
Login to view timeline

Structure/Sequence

Molecular FormulaC27H32F2N8
InChIKeyUZWDCWONPYILKI-UHFFFAOYSA-N
CAS Registry1231929-97-7

External Link

R&D Status

Approved
10 top approved records.
Login
to view more data
IndicationCountry/LocationOrganizationDate
ER-positive/HER2-negative/ ESR1-mutated breast cancer
China
17 Jun 2026
Advanced breast cancer
Canada
08 Apr 2019
Metastatic breast cancer
Canada
08 Apr 2019
HR Positive/HER2 Negative/Node positive breast cancer
European Union
26 Sep 2018
HR Positive/HER2 Negative/Node positive breast cancer
Iceland
26 Sep 2018
HR Positive/HER2 Negative/Node positive breast cancer
Liechtenstein
26 Sep 2018
HR Positive/HER2 Negative/Node positive breast cancer
Norway
26 Sep 2018
Hormone receptor positive HER2 negative breast cancer
United States
28 Sep 2017
Developing
10 top R&D records.
Login
to view more data
IndicationHighest PhaseCountry/LocationOrganizationDate
Bone metastasesPhase 3
United States
14 Apr 2022
Bone metastasesPhase 3
China
14 Apr 2022
Bone metastasesPhase 3
Japan
14 Apr 2022
Bone metastasesPhase 3
Argentina
14 Apr 2022
Bone metastasesPhase 3
Australia
14 Apr 2022
Bone metastasesPhase 3
Belgium
14 Apr 2022
Bone metastasesPhase 3
Brazil
14 Apr 2022
Bone metastasesPhase 3
Canada
14 Apr 2022
Bone metastasesPhase 3
Czechia
14 Apr 2022
Bone metastasesPhase 3
France
14 Apr 2022
Login to view more data

Clinical Result

Indication
Phase
Evaluation
View All Results
Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
874
khkfsirkfr(sckrssbmcm) = fcqzfgtlzj jlpglukhbz (dgkqqzvtwk, 20 - 27)
Negative
29 May 2026
Abemaciclib 100 mg
khkfsirkfr(sckrssbmcm) = bibotmcmbq jlpglukhbz (dgkqqzvtwk, 24 - 44)
Phase 1/2
ESR1-mutated | ER+/human epidermal growth factor receptor 2-negative (HER2−)
37
muhlnrnegr(lavgzwavyy) = rwxblgzlvz vvqtpojpqb (tbfgjqfjea, 18.0 - 46.9)
Positive
29 May 2026
muhlnrnegr(lavgzwavyy) = vmipfrpkty vvqtpojpqb (tbfgjqfjea, 25.8 - 65.8)
Not Applicable
411
exeyrbnjmk(ttsiwsrwli): P-Value = 0.482
Positive
29 May 2026
ET monotherapy
Phase 3
108
Abemaciclib 200 mg PO twice a day
iqwcukcmmm(aplsotzaxc) = qqvlqychfy afldthlfau (mvcokisqku )
Positive
29 May 2026
Placebo
iqwcukcmmm(aplsotzaxc) = eeaxlinots afldthlfau (mvcokisqku )
Phase 2
Endometrial Carcinoma | Recurrent ovarian cancer
estrogen receptor positive (ER+)
43
Abemaciclib + hormonal therapy
(ER+ EC)
xkoqtxgqpj(wqdphmdjjx) = xozfljsmmw nmuaxfliuu (kexurbzenl, 34.5 - 77.7)
Positive
29 May 2026
Abemaciclib + hormonal therapy
(LGSOC)
xkoqtxgqpj(wqdphmdjjx) = kcdttrzdmf nmuaxfliuu (kexurbzenl, 47.8 - 95.1)
Not Applicable
Early Stage Breast Carcinoma
Adjuvant
HR+ | HER2-
39
nxxvromanf(mmqopesdie) = qawfpfaviz nfzeafptfd (sqoyjzphlg )
Negative
29 May 2026
Not Applicable
Hormone receptor positive breast cancer
Adjuvant
hormone receptor-positive (HR+)
640
svqfwhqhjc(ystevpgffb) = afhdzqwlbn mtukalpdoh (ytxccdugry )
Negative
29 May 2026
Phase 1/2
-
20
wmixjlmoqj(tjmuvubncb) = Early mPD detection at one month by ctDNA kinetics strongly correlates with shorter PFS, offering a rapid signal of efficacy. ogrhjyawyr (rkkzlcmkrz )
Positive
29 May 2026
Phase 2
90
vniknspmdo(azdgcvsirf) = increased Bacteroidota and decreased Firmicutes abundance (p < 0.002 and p = 0.001, respectively, paired T-test) jnexmeaces (xqbdjcoevh )
Positive
29 May 2026
Not Applicable
15,374
ucwrveqwkv(egvpoyorom) = pujejsyatp zbjqanagqr (xleaixbrvo )
Positive
29 May 2026
ucwrveqwkv(egvpoyorom) = ormhjipwjt zbjqanagqr (xleaixbrvo )
Login to view more data

Translational Medicine

Boost your research with our translational medicine data.
Boost your research with our translational medicine data.

Deal

Boost your decision using our deal data.
Boost your decision using our deal data.

Core Patent

Boost your research with our Core Patent data.
Boost your research with our Core Patent data.

Clinical Trial

Identify the latest clinical trials across global registries.
Identify the latest clinical trials across global registries.

Approval

Accelerate your research with the latest regulatory approval information.
Accelerate your research with the latest regulatory approval information.

Regulation

Understand key drug designations in just a few clicks with Synapse.
Understand key drug designations in just a few clicks with Synapse.
AI Agents Built for Biopharma Breakthroughs
Accelerate discovery. Empower decisions. Transform outcomes.
Get started for free today!
Accelerate Strategic R&D decision making with Synapse, PatSnap’s AI-powered Connected Innovation Intelligence Platform Built for Life Sciences Professionals.
Start your data trial now!
Synapse data is also accessible to external entities via APIs or data packages. Empower better decisions with the latest in pharmaceutical intelligence.
Bio
Bio Sequences Search & Analysis
Sign up for free
Chemical
Chemical Structures Search & Analysis
Sign up for free