ArticleCancer research2022
ATR Inhibitor AZD6738 (Ceralasertib) Exerts Antitumor Activity as a Monotherapy and in Combination with Chemotherapy and the PARP Inhibitor Olaparib.
Article in Cancer research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
95 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.
- The efficacy and safety of ATR inhibitors in the treatment of solid tumors: a systematic review and meta-analysis.Frontiers in oncology · 2025Pooled it
- Ceralasertib Monotherapy in Patients with ATM-Altered Advanced Solid Tumors or Metastatic Castration-Resistant Prostate Cancer: Data from the Phase IIa PLANETTE Study.Cancer research communications · 2026Trial
- Novel Combinations of Immunotherapies or DNA Damage Repair Inhibitors in Platinum-Refractory Extensive-Stage Small Cell Lung Cancer: The Phase II BALTIC Study.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Trial
- Olaparib and Ceralasertib (AZD6738) in Patients with Triple-Negative Advanced Breast Cancer: Results from Cohort E of the plasmaMATCH Trial (CRUK/15/010).Clinical cancer research : an official journal of the American Association for Cancer Research · 2023Trial
- Evaluating carboplatin and PARP inhibitor combination efficacy using high-grade serous carcinoma spheroids and organoids.Cancer biology & therapy · 2026Article
- Antitumor activity and structure-activity relationship of poly (ADP-ribose) polymerase (PARP)-based dual inhibitors.Journal of enzyme inhibition and medicinal chemistry · 2026Review
- Beyond conventional therapies: the evolution of targeted agents and immunotherapies in triple-negative breast cancer.Acta pharmacologica Sinica · 2026Review
- Safety and efficacy of ceralasertib, an ATR kinase inhibitor, combined with olaparib: dose escalation in advanced solid tumours and dose expansion in advanced breast cancer.British journal of cancer · 2026Article
- ONC201 in combination with ATR inhibitor ceralasertib exhibits potent synergy in ovarian cancer cells.bioRxiv : the preprint server for biology · 2026Article
- The dual immune landscape of homologous recombination-deficient tumors: mechanisms and therapeutic implications.Cancer metastasis reviews · 2026Review
- Exploiting DNA damage tolerance for precision oncology.Trends in cancer · 2026Review
- Targeted inhibition of ATR kinase promotes antitumor immunity in HNSCC through enhanced STING activation and T cell function.Translational oncology · 2026Article
- HAMNO and CGK733 as BRCAness-driven candidates exhibit synthetic lethality with olaparib in BRCA-proficient ovarian cancer.NPJ precision oncology · 2026Article
- LIG1 Loss in TP53-mutant Triple Negative Breast Cancer Rewires DNA Repair and Confers Sensitivity to PARP-ATR Inhibitor Combinations.Molecular cancer therapeutics · 2026Article
- Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer.Molecular oncology · 2026Review
- Overcoming Resistance in Triple-Negative Breast Cancer: A Translational Perspective on Next-Generation DNA Damage Response Inhibitors and Synthetic Lethality.Molecules (Basel, Switzerland) · 2026Review
- Phase 1 study of ceralasertib, an ATR kinase inhibitor, in combination with durvalumab in patients with recurrent or metastatic NSCLC or HNSCC.British journal of cancer · 2026Article
- Fundamentals and emerging frontiers in p53-targeted drug development.Biochemistry and biophysics reports · 2026Review
- ATR kinase inhibitors induce mitochondrial fission in CD8bioRxiv : the preprint server for biology · 2026Article
- ATR and PKMYT1 Inhibition Resensitizes a Subset of TNBC Patient-Derived Models to Carboplatin, Inducing Mitotic Catastrophe.Cancer research communications · 2026Article
35 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
AZD6738 (ceralasertib) is a potent and selective orally bioavailable inhibitor of ataxia telangiectasia and Rad3-related (ATR) kinase. ATR is activated in response to stalled DNA replication forks to promote G2-M cell-cycle checkpoints and fork restart. Here, we found AZD6738 modulated CHK1 phosphorylation and induced ATM-dependent signaling (pRAD50) and the DNA damage marker γH2AX. AZD6738 inhibited break-induced replication and homologous recombination repair. In vitro sensitivity to AZD6738 was elevated in, but not exclusive to, cells with defects in the ATM pathway or that harbor putative drivers of replication stress such as CCNE1 amplification. This translated to in vivo antitumor activity, with tumor control requiring continuous dosing and free plasma exposures, which correlated with induction of pCHK1, pRAD50, and γH2AX. AZD6738 showed combinatorial efficacy with agents associated with replication fork stalling and collapse such as carboplatin and irinotecan and the PARP inhibitor olaparib. These combinations required optimization of dose and schedules in vivo and showed superior antitumor activity at lower doses compared with that required for monotherapy. Tumor regressions required at least 2 days of daily dosing of AZD6738 concurrent with carboplatin, while twice daily dosing was required following irinotecan. In a BRCA2-mutant patient-derived triple-negative breast cancer (TNBC) xenograft model, complete tumor regression was achieved with 3 to5 days of daily AZD6738 per week concurrent with olaparib. Increasing olaparib dosage or AZD6738 dosing to twice daily allowed complete tumor regression even in a BRCA wild-type TNBC xenograft model. These preclinical data provide rationale for clinical evaluation of AZD6738 as a monotherapy or combinatorial agent. SIGNIFICANCE: This detailed preclinical investigation, including pharmacokinetics/pharmacodynamics and dose-schedule optimizations, of AZD6738/ceralasertib alone and in combination with chemotherapy or PARP inhibitors can inform ongoing clinical efforts to treat cancer with ATR inhibitors.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.