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Ribociclib

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https://www.readbyqxmd.com/read/28758424/ribociclib-for-the-treatment-of-advanced-hormone-receptor-positive-her2-negative-breast-cancer
#1
Sara López-Tarruella, Yolanda Jerez, Iván Márquez-Rodas, Isabel Echavarria, Miguel Martin
CDK4/6 inhibitors are a promising new class of drugs for hormone-receptor-positive breast cancer and have been shown to overcome and delay hormone resistance in advanced breast cancer. Ribociclib, a selective oral inhibitor of CDK4/6, was approved by the US FDA for first-line treatment of hormone-receptor-positive/HER2-negative metastatic breast cancer. This review summarizes the clinical evidence available for ribociclib, from preclinical data to the pivotal studies, with a special focus on toxicity and its management...
July 31, 2017: Future Oncology
https://www.readbyqxmd.com/read/28741274/cyclin-dependent-kinase-4-6-inhibitors-in-breast-cancer-palbociclib-ribociclib-and-abemaciclib
#2
REVIEW
Dorota Kwapisz
PURPOSE: The cyclin D-cyclin dependent kinase (CDK) 4/6-inhibitor of CDK4 (INK4)-retinoblastoma (Rb) pathway plays a crucial role in cell cycle progression and its dysregulation is an important contributor to endocrine therapy resistance. CDK4/6 inhibitors trigger cell cycle arrest in Rb protein (pRb)-competent cells. Recent years have seen the development of selective CDK4/6 inhibitors, which have delivered promising results of efficacy and manageable safety profiles. The main objective of this review is to discuss preclinical and clinical data to date, and ongoing clinical trials with palbociclib, ribociclib, and abemaciclib in breast cancer...
July 24, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28706010/clinical-management-of-potential-toxicities-and-drug-interactions-related-to-cyclin-dependent-kinase-4-6-inhibitors-in-breast-cancer-practical-considerations-and-recommendations
#3
REVIEW
Laura M Spring, Mark L Zangardi, Beverly Moy, Aditya Bardia
Aberrations of the cell cycle are pervasive in cancer, and selective cell cycle inhibition of cancer cells is a target of choice for a number of novel cancer therapeutics. Cyclin-dependent kinases (CDKs) are key regulatory enzymes that control cell cycle transitions and the commitment to cell division. Palbociclib and ribociclib are both orally active, highly selective reversible inhibitors of CDK4 and CDK6 that are approved by the U.S. Food and Drug Administration (FDA) for hormone receptor-positive metastatic breast cancer in combination with specific endocrine therapies...
July 13, 2017: Oncologist
https://www.readbyqxmd.com/read/28680952/a-review-of-fulvestrant-in-breast-cancer
#4
REVIEW
Mark R Nathan, Peter Schmid
Fulvestrant is a selective estrogen receptor degrader that binds, blocks and degrades the estrogen receptor (ER), leading to complete inhibition of estrogen signaling through the ER. This review article further explains the mechanism of action of the drug and goes on to review the trials carried out to optimize its dosing. Multiple trials have been undertaken to compare fulvestrant with other endocrine treatments, and results have shown it to have similar efficacy to anastrozole, tamoxifen and exemestane at 250 mg every 28 days...
2017: Oncology and Therapy
https://www.readbyqxmd.com/read/28657360/a-current-and-comprehensive-review-of-cyclin-dependent-kinase-inhibitors-for-the-treatment-of-metastatic-breast-cancer
#5
Burak Bilgin, Mehmet A N Sendur, Didem Şener Dede, Muhammed Bülent Akıncı, Bülent Yalçın
BACKGROUND: Resistance to endocrine treatment generally occurs over time, especially in the metastatic stage. In this paper, we aimed to review the mechanisms of cyclin-dependent kinase (CDK) 4/6 inhibition and clinical usage of new agents in the light of recent literature updates. SCOPE: A literature search was carried out using PubMed, Medline and ASCO and ESMO annual-meeting abstracts by using the following search keywords; "palbociclib", "abemaciclib", "ribociclib", "cyclin-dependent kinase inhibitors" and "CDK 4/6" in metastatic breast cancer (MBC)...
July 25, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28620137/biological-specificity-of-cdk4-6-inhibitors-dose-response-relationship-in-vivo-signaling-and-composite-response-signature
#6
Erik S Knudsen, Jack Hutcheson, Paris Vail, Agnieszka K Witkiewicz
Recently developed potent and selective CDK4/6 inhibitors fall into two classes based on structure and toxicity profiles in clinical studies. One class, exemplified by palbociclib and ribociclib, exhibits neutropenia as a dose-limiting toxicity and requires discontinuous dosing. In contrast, the structurally distinct CDK4/6 inhibitor abemaciclib is dosed continuously, and has diarrhea and fatigue as dose-limiting toxicities. In preclinical models, palbociclib has been extensively studied and induces cell cycle inhibition in an RB-dependent manner...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28618307/meta-analysis-of-selected-toxicity-endpoints-of-cdk4-6-inhibitors-palbociclib-and-ribociclib
#7
REVIEW
R Costa, R B Costa, Sarah M Talamantes, Irene Helenowski, Jonna Peterson, Jason Kaplan, B A Carneiro, Francis J Giles, W J Gradishar
PURPOSE: Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors such as palbociclib and ribociclib are associated with distinct adverse effects (AEs) compared to other targeted therapies. This meta-analysis of clinical trials summarizes these agents' toxicity profile. METHODS: A librarian-guided literature search was conducted in March of 2017. The trials needed to have at least one of the study arms consisting of palbociclib or ribociclib monotherapy at currently FDA approved dose regimens...
June 12, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28580868/cell-cycle-therapeutics-come-of-age
#8
Matthew Ingham, Gary K Schwartz
The ability to sustain unscheduled proliferation is a hallmark of cancer. The normal process of cell division occurs via the cell cycle, a series of highly regulated steps that are orchestrated at the molecular level by specific cyclins that act in association with cyclin-dependent kinases (CDKs). Cyclin D and CDK4/6 play a key role in cell-cycle progression by phosphorylating and inactivating the retinoblastoma protein, a tumor suppressor that restrains G1- to S-phase progression. The first-generation CDK inhibitors demonstrated broad activity upon several CDKs, which likely explains their considerable toxicities and limited efficacy...
June 3, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28579722/pharmaceutical-approval-update
#9
Mary Choy
Ribociclib (Kisqali) for HR+/HER2- advanced or metastatic breast cancer in postmenopausal women; safinamide (Xadago) as adjunctive treatment for patients with Parkinson's disease; and avelumab (Bavencio) for metastatic Merkel cell carcinoma.
June 2017: P & T: a Peer-reviewed Journal for Formulary Management
https://www.readbyqxmd.com/read/28521250/development-and-validation-of-lc-ms-ms-methods-for-the-measurement-of-ribociclib-a-cdk4-6-inhibitor-in-mouse-plasma-and-ringer-s-solution-and-its-application-to-a-cerebral-microdialysis-study
#10
Ashish Kala, Yogesh T Patel, Abigail Davis, Clinton F Stewart
LC-MS/MS methods to measure ribociclib in mouse plasma and Ringer's solution were successfully developed and validated. Reverse phase chromatography was performed with gradient elution using C18 (100A, 50×4.6mm, 3μ) and C8-A (50×2.0mm, 5μ) columns for plasma and Ringer's samples, respectively. Mouse plasma samples were extracted using solid phase extraction method, whereas no extraction was required for the Ringer's solution samples. Analytes were detected using positive ion MRM mode. The precursor to product ions (Q1→Q3) selected for ribociclib and d6-ribociclib were (m/z) 435...
July 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28515242/new-approaches-to-endocrine-therapy-for-breast-cancer
#11
William J Gradishar
The management of advanced hormone receptor-positive disease has evolved with the emergence of CDK4/6 inhibitors. Improvements in progression-free survival of approximately 10 months were noted in pivotal trials of palbociclib. Strong efficacy was also seen with ribociclib, which was recently approved by the FDA. In the adjuvant treatment setting of hormone receptor-positive disease, an important issue for consideration is the duration of endocrine therapy.
May 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/28453226/palbociclib-induces-activation-of-ampk-and-inhibits-hepatocellular-carcinoma-in-a-cdk4-6-independent-manner
#12
Feng-Shu Hsieh, Yao-Li Chen, Man-Hsin Hung, Pei-Yi Chu, Ming-Hsien Tsai, Li-Ju Chen, Yung-Jen Hsiao, Chih-Ting Shih, Mao-Ju Chang, Tzu-I Chao, Chung-Wai Shiau, Kuen-Feng Chen
Palbociclib, a CDK4/6 inhibitor, has recently been approved for hormone receptor-positive breast cancer patients. The effects of palbociclib as a treatment for other malignancies, including hepatocellular carcinoma (HCC), are of great clinical interest and are under active investigation. Here, we report the effects and a novel mechanism of action of palbociclib in HCC. We found that palbociclib induced both autophagy and apoptosis in HCC cells through a mechanism involving 5' AMP-activated protein kinase (AMPK) activation and protein phosphatase 5 (PP5) inhibition...
August 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28438180/recent-advances-of-highly-selective-cdk4-6-inhibitors-in-breast-cancer
#13
REVIEW
Hanxiao Xu, Shengnan Yu, Qian Liu, Xun Yuan, Sridhar Mani, Richard G Pestell, Kongming Wu
Uncontrolled cell division is the hallmark of cancers. Full understanding of cell cycle regulation would contribute to promising cancer therapies. In particular, cyclin-dependent kinases 4/6 (CDK4/6), which are pivotal drivers of cell proliferation by combination with cyclin D, draw more and more attention. Subsequently, extensive studies were carried out to explore drugs inhibiting CDK4/6 and assess the efficacy and safety of these drugs in cancer, especially breast cancer. Due to the insuperable adverse events and the less activity observed in vivo, the drug development of the initial pan-CDK inhibitor flavopiridol was consequently discontinued, and then highly specific inhibitors were extensively researched and developed, including palbociclib (PD0332991), ribociclib (LEE011), and abemaciclib (LY2835219)...
April 24, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28432176/a-phase-i-study-of-the-cdk4-6-inhibitor-ribociclib-lee011-in-pediatric-patients-with-malignant-rhabdoid-tumors-neuroblastoma-and-other-solid-tumors
#14
Birgit Geoerger, Franck Bourdeaut, Steven G DuBois, Matthias Fischer, James I Geller, Nicholas G Gottardo, Aurélien Marabelle, Andrew D J Pearson, Shakeel Modak, Thomas Cash, Giles W Robinson, Marlyane Motta, Alessandro Matano, Suraj G Bhansali, Jason R Dobson, Sudha Parasuraman, Susan N Chi
Purpose: The cyclin-dependent kinase (CDK) 4/6 inhibitor, ribociclib (LEE011), displayed preclinical activity in neuroblastoma and malignant rhabdoid tumor (MRT) models. In this phase I study, the maximum tolerated dose (MTD) and recommended phase II dose (RP2D), safety, pharmacokinetics (PK), and preliminary activity of single-agent ribociclib were investigated in pediatric patients with neuroblastoma, MRT, or other cyclin D-CDK4/6-INK4-retinoblastoma pathway-altered tumors.Experimental Design: Patients (aged 1-21 years) received escalating once-daily oral doses of ribociclib (3-weeks-on/1-week-off)...
April 21, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28417244/ribociclib-first-global-approval
#15
Yahiya Y Syed
Ribociclib is an oral, small-molecule inhibitor of cyclin-dependent kinase (CDK) 4 and 6 that is under development by Novartis for the treatment of cancer. CDKs play an important role in cell cycle progression and cellular proliferation, and inhibition of these kinases with ribociclib results in G1 phase cell-cycle arrest. Ribociclib, in combination with an aromatase inhibitor, was recently approved in the USA for the first-line treatment of advanced breast cancer and has been submitted for approval in the EU for this indication...
May 2017: Drugs
https://www.readbyqxmd.com/read/28395543/pharmacokinetic-drug-evaluation-of-ribociclib-for-the-treatment-of-metastatic-hormone-positive-breast-cancer
#16
REVIEW
Giuseppe Curigliano, Carmen Criscitiello, Angela Esposito, Mattia Intra, Saverio Minucci
Cyclin D-cyclin-dependent kinase (CDK) 4/6-inhibitor of CDK4/6-retinoblastoma (Rb) pathway hyperactivation is associated with hormone receptor-positive (HR+) breast cancer (BC). Ribociclib is an orally bioavailable, highly selective small molecule inhibitor of CDK4/6 that induces G1 arrest at sub-micromolar concentrations in a variety of pRb-positive cancer cells in vitro. Ribociclib is a new standard of care for metastatic HR+/HER2 negative metastatic breast cancer. Area covered: In this article, we review the preclinical and clinical development of ribociclib as well as discussing the role for novel applications of these agents outside the arena of HR-positive, HER2-negative advanced breast cancer...
May 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/28382802/major-clinical-research-advances-in-gynecologic-cancer-in-2016-10-year-special-edition
#17
REVIEW
Dong Hoon Suh, Miseon Kim, Kidong Kim, Hak Jae Kim, Kyung Hun Lee, Jae Weon Kim
In 2016, 13 topics were selected as major research advances in gynecologic oncology. For ovarian cancer, study results supporting previous ones regarding surgical preventive strategies were reported. There were several targeted agents that showed comparable responses in phase III trials, including niraparib, cediranib, and nintedanib. On the contrary to our expectations, dose-dense weekly chemotherapy regimen failed to prove superior survival outcomes compared with conventional triweekly regimen. Single-agent non-platinum treatment to prolong platinum-free-interval in patients with recurrent, partially platinum-sensitive ovarian cancer did not improve and even worsened overall survival (OS)...
May 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28359238/hr-her2-advanced-breast-cancer-and-cdk4-6-inhibitors-mode-of-action-clinical-activity-and-safety-profiles
#18
Sarah L Sammons, Donna L Topping, Kimberly L Blackwell
Cyclin-dependent kinase (CDK) 4/6 inhibitor-based therapies have shown great promise in improving clinical outcomes for patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer. Addition of a CDK4/6 inhibitor to endocrine therapy increases efficacy and delays disease progression. Successful use of CDK4/6 inhibitor-based therapies in the clinic requires insight into the unique side-effect profiles of this class of agents and effective patient monitoring...
March 30, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28356261/ribociclib-approved-for-advanced-breast-cancer
#19
(no author information available yet)
The FDA has approved ribociclib combined with aromatase inhibitor therapy for women with metastatic HR-positive, HER2-negative breast cancer. It is the second CDK 4/6 inhibitor approved for these patients, behind palbociclib; a third is under investigation.
May 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28351928/ribociclib-lee011-mechanism-of-action-and-clinical-impact-of-this-selective-cyclin-dependent-kinase-4-6-inhibitor-in-various-solid-tumors
#20
REVIEW
Debu Tripathy, Aditya Bardia, William R Sellers
The cyclin D-cyclin-dependent kinase (CDK) 4/6-p16-retinoblastoma (Rb) pathway is commonly disrupted in cancer, leading to abnormal cell proliferation. Therapeutics targeting this pathway have demonstrated antitumor effects in preclinical and clinical studies. Ribociclib is a selective, orally bioavailable inhibitor of CDK4 and CDK6, which received FDA approval in March 2017 and is set to enter the treatment landscape alongside other CDK4/6 inhibitors, including palbociclib and abemaciclib. Here, we describe the mechanism of action of ribociclib and review preclinical and clinical data from phase I, II, and III trials of ribociclib across different tumor types, within the context of other selective CDK4/6 inhibitors...
March 28, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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