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Mason SR, Willson ML, Egger SJ, Beith J, Dear RF, Goodwin A. Platinum-based chemotherapy for early triple-negative breast cancer. Cochrane Database Syst Rev 2023; 9:CD014805. [PMID: 37681577 PMCID: PMC10486188 DOI: 10.1002/14651858.cd014805.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer associated with shorter survival and a higher likelihood of the cancer returning. In early TNBC, platinum-based chemotherapy has been shown to improve pathological complete response (pCR); however, its effect on long-term survival outcomes has not been fully elucidated and recommendations to include platinum chemotherapy are not consistent in international guidelines. OBJECTIVES To evaluate the benefits and harms of platinum-based chemotherapy as adjuvant and neoadjuvant treatment in people with early triple-negative breast cancer. SEARCH METHODS We used standard, extensive Cochrane search methods. The latest search date was 4 April 2022. SELECTION CRITERIA We included randomised controlled trials examining neoadjuvant or adjuvant platinum chemotherapy for early TNBC. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Our primary outcomes were disease-free survival (DFS) and overall survival (OS). Our secondary outcomes were pCR, treatment adherence, grade III or IV toxicity related to chemotherapy, and quality of life. Prespecified subgroups included BRCA mutation status, homologous recombination deficiency (HRD) status, frequency of chemotherapy, type of platinum agent used, and the presence or absence of anthracycline chemotherapy. We assessed risk of bias using Cochrane's RoB 1 tool and certainty of evidence using the GRADE approach. MAIN RESULTS From 3972 records, we included 20 published studies involving 21 treatment comparisons, and 25 ongoing studies. For most domains, risk of bias was low across studies. There were 16 neoadjuvant chemotherapy studies (one of which combined neoadjuvant and adjuvant therapy) and four adjuvant chemotherapy trials. Most studies used carboplatin (17 studies) followed by cisplatin (two), and lobaplatin (one). Eight studies had an anthracycline-free intervention arm, five of which had a carboplatin-taxane intervention compared to an anthracycline-taxane control. All studies reporting DFS and OS used carboplatin. Inclusion of platinum chemotherapy improved DFS in neoadjuvant and adjuvant settings (neoadjuvant: hazard ratio (HR) 0.63, 95% confidence interval (CI) 0.53 to 0.75; 7 studies, 8 treatment comparisons, 1966 participants; high-certainty evidence; adjuvant: HR 0.69, 95% CI 0.54 to 0.88; 4 studies, 1256 participants; high-certainty evidence). Platinum chemotherapy in the regimen improved OS (neoadjuvant: HR 0.69, 95% CI 0.55 to 0.86; 7 studies, 8 treatment comparisons, 1973 participants; high-certainty evidence; adjuvant: 0.70, 95% CI 0.50 to 0.96; 4 studies, 1256 participants; high-certainty evidence). Median follow-up for survival outcomes ranged from 36 to 97.6 months. Our analysis confirmed platinum chemotherapy increased pCR rates (risk ratio (RR) 1.44, 95% CI 1.31 to 1.59; 15 studies, 16 treatment comparisons, 3083 participants; high-certainty evidence). Subgroup analyses showed no evidence of differences in DFS according to BRCA mutation status, HRD status, lymph node status, or whether the intervention arm contained anthracycline chemotherapy or not. Platinum chemotherapy was associated with reduced dose intensity, with participants more likely to require chemotherapy delays (RR 2.23, 95% CI 1.70 to 2.94; 4 studies, 5 treatment comparisons, 1053 participants; moderate-certainty evidence), dose reductions (RR 1.77, 95% CI 1.56 to 2.02; 7 studies, 8 treatment comparisons, 2055 participants; moderate-certainty evidence) and early cessation of treatment (RR 1.20, 95% CI 1.04 to 1.38; 16 studies, 17 treatment comparisons, 4178 participants; moderate-certainty evidence). Increased haematological toxicity occurred in the platinum group who were more likely to experience grade III/IV neutropenia (RR 1.53, 95% CI 1.43 to 1.63; 19 studies, 20 treatment comparisons, 4849 participants; moderate-certainty evidence), anaemia (RR 8.20, 95% CI 5.66 to 11.89; 18 studies, 19 treatment comparisons, 4757 participants; moderate-certainty evidence) and thrombocytopenia (RR 7.59, 95% CI 5.10 to 11.29; 18 studies, 19 treatment comparisons, 4731 participants; moderate-certainty evidence). There was no evidence of a difference between chemotherapy groups in febrile neutropenia (RR 1.16, 95% CI 0.89 to 1.49; 11 studies, 3771 participants; moderate-certainty evidence). Renal impairment was very rare (0.4%, 2 events in 463 participants; note 3 studies reported 0 events in both arms; 4 studies; high-certainty evidence). Treatment-related death was very rare (0.2%, 7 events in 3176 participants and similar across treatment groups; RR 0.58, 95% 0.14 to 2.33; 10 studies, 11 treatment comparisons; note 8 studies reported treatment-related deaths but recorded 0 events in both groups. Thus, the RR and CIs were calculated from 3 studies rather than 11; 3176 participants; high-certainty evidence). Five studies collected quality of life data but did not report them. AUTHORS' CONCLUSIONS Platinum-based chemotherapy using carboplatin in the adjuvant or neoadjuvant setting improves long-term outcomes of DFS and OS in early TNBC, with no evidence of differences by subgroup. This was at the cost of more frequent chemotherapy delays and dose reductions, and greater haematological toxicity, though serious adverse events including neuropathy, febrile neutropenia or treatment-related death were not increased. These findings support the use of platinum-based chemotherapy for people with early TNBC. The optimal dose and regimen are not defined by this analysis, but there is a suggestion that similar relative benefits result from the addition of carboplatin to either anthracycline-free regimens or those containing anthracycline agents.
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Affiliation(s)
- Sofia Re Mason
- Garvan Institute of Medical Research, Darlinghurst, Australia
- St Vincent's Clinical School, UNSW, Sydney, Australia
- Chris O'Brien Lifehouse, Camperdown, Australia
- Concord Clinical School, The University of Sydney, Concord Repatriation General Hospital, Concord, Australia
| | - Melina L Willson
- Evidence Integration, NHMRC Clinical Trials Centre, The University of Sydney, Sydney, Australia
| | - Sam J Egger
- Cancer Research Division, Cancer Council NSW, Sydney, Australia
- The Daffodil Centre, The University of Sydney, Sydney, Australia
| | - Jane Beith
- Chris O'Brien Lifehouse, Camperdown, Australia
| | - Rachel F Dear
- Sydney Medical School, The University of Sydney, Sydney, Australia
- The Kinghorn Cancer Centre, Darlinghurst, Australia
| | - Annabel Goodwin
- Sydney Medical School, The University of Sydney, Sydney, Australia
- Concord Clinical School, The University of Sydney, Concord Repatriation General Hospital, Concord, Australia
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Wan A, Zhang G, Ma D, Zhang Y, Qi X. An overview of the research progress of BRCA gene mutations in breast cancer. Biochim Biophys Acta Rev Cancer 2023; 1878:188907. [PMID: 37172654 DOI: 10.1016/j.bbcan.2023.188907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 04/14/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
The breast cancer susceptibility gene (BRCA) is an important tumor suppressor gene, including BRCA1 and BRCA2, a biomarker that assesses the risk of breast cancer and influences a patient's individualized treatment options. BRCA1/2 mutation (BRCAm) increases the risk of breast cancer. However, breast-conserving surgery is still an option for BRCAm, and prophylactic mastectomy and nipple-sparing mastectomy may also reduce the risk of breast cancer. BRCAm is sensitive to Poly (ADP-ribose) polymerase inhibitor (PARPi) therapy due to specific types of DNA repair defects, and its combination with other DNA damage pathway inhibitors and endocrine therapy and immunotherapy are also used for the treatment of BRCAm breast cancer. The current treatment and research progress of BRCA1/2 mutant breast cancer in this review provides a basis for the individualized treatment of patients with this type of breast cancer.
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Affiliation(s)
- Andi Wan
- Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Guozhi Zhang
- Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Dandan Ma
- Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Yi Zhang
- Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Xiaowei Qi
- Department of Breast and Thyroid Surgery, Southwest Hospital, Army Medical University, Chongqing, China.
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Silva D, Mesquita A. Evolving Evidence for the Optimization of Neoadjuvant Therapy in Triple-Negative Breast Cancer. BREAST CANCER: BASIC AND CLINICAL RESEARCH 2022; 16:11782234221107580. [PMID: 35783596 PMCID: PMC9243491 DOI: 10.1177/11782234221107580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 05/27/2022] [Indexed: 11/15/2022] Open
Abstract
Representing 15% to 20% of all invasive breast cancers, adjuvant systemic
treatment for early-stage, high-risk triple-negative breast cancer (TNBC) is
preferentially done in the neoadjuvant setting based on a chemotherapy backbone
of anthracyclines and taxanes. Pathological complete response to neoadjuvant
treatment constitutes the main objective, regarding its correlation with
oncological outcomes. The optimal neoadjuvant regimen to achieve the highest
rates of pathological complete response is still under investigation, with the
increasing knowledge on the molecular pathways, genomic sequencing, and
immunological profile of TNBC allowing for the development of a wide array of
new therapeutic options. This review aims to summarize the current evidence and
ongoing clinical trials of new therapeutic options for the neoadjuvant treatment
of TNBC patients.
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Affiliation(s)
- Diogo Silva
- Department of Medical Oncology, Matosinhos Local Health Unity – Hospital Pedro Hispano, Porto, Portugal
| | - Alexandra Mesquita
- Department of Medical Oncology, Matosinhos Local Health Unity – Hospital Pedro Hispano, Porto, Portugal
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Tufano AM, Teplinsky E, Landry CA. Updates in Neoadjuvant Therapy for Triple Negative Breast Cancer. Clin Breast Cancer 2021; 21:1-9. [DOI: 10.1016/j.clbc.2020.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 06/28/2020] [Accepted: 07/01/2020] [Indexed: 11/25/2022]
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Weng ZJ, Wu SX, Luo HS, Du ZS, Li XY, Lin JZ. Neoadjuvant Chemotherapy in Early Triple-Negative Breast Cancer: A Pairwise and Network Meta-Analysis of Pathological Complete Response. INQUIRY : A JOURNAL OF MEDICAL CARE ORGANIZATION, PROVISION AND FINANCING 2021; 58:469580211056213. [PMID: 34806458 PMCID: PMC8606982 DOI: 10.1177/00469580211056213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We performed a pairwise and network meta-analysis to compare pathological complete response (pCR) among neoadjuvant chemotherapy in patients with triple-negative breast cancer. We searched PubMed for randomized clinical trials between January 1, 2000 and December 1, 2020. Abstracts from meetings were also searched. A frequentist random-effect model was applied to compare pCR and toxicities. The P-score was used to rank treatment effects. Nineteen trials with 16 treatments and 7794 patients were included. On the basis of SoC, the addition of carboplatin (OR = 1.82, 95% CI, 1.24 to 2.68, P < .01) and the addition of checkpoint inhibitors (OR = 1.69, 95% CI, 1.23 to 2.32, P < .01) increased pCR in pairwise meta-analysis; compared with paclitaxel, nab-paclitaxel did not improve pCR rates (OR = 1.81, 95% CI, .80 to 4.12, P = .16). The anthracycline-sparing regimen led to similar pCR compared with the anthracycline-containing regimen (OR = 1.50, 95% CI, .82 to 2.76, P = .19). In network meta-analysis, the addition of carboplatin plus a PD-1 inhibitor (pembrolizumab), carboplatin plus bevacizumab, and carboplatin plus veliparib ranked as the top three treatments for achieving pCR, with corresponding P-scores of .91, .84, and .72, respectively. Among patients with homologous recombination deficiency, the addition of carboplatin (OR = 1.31, 95% CI, .69 to 2.50, P = .41) or carboplatin plus PARP inhibitors (OR = 1.19, 95% CI, .58 to 2.47, P = .63) did not increase pCR. For triple-negative breast cancer, combining carboplatin with taxane-anthracycline-containing neoadjuvant chemotherapy could be the standard of care, and the combination containing checkpoint inhibitor is promising. However, their role in long-term oncologic outcome remains to be determined.
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Affiliation(s)
- Zeng-Jie Weng
- Department of General Practice, Shantou Central Hospital, Shantou, China
| | - Sheng-Xi Wu
- Department of Radiation Oncology, Shantou Central Hospital, Shantou, China
| | - He-San Luo
- Department of Radiation Oncology, Shantou Central Hospital, Shantou, China
| | - Ze-Sen Du
- Department of Surgical Oncology, Shantou Central Hospital, Shantou, China
| | - Xu-Yuan Li
- Department of Medical Oncology, Shantou Central Hospital, Shantou, China
| | - Jia-Zhou Lin
- Department of Clinical Laboratory Medicine, Cancer Hospital of Shantou University Medical College, Shantou, China
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Gou R, Dong H, Lin B. Application and reflection of genomic scar assays in evaluating the efficacy of platinum salts and PARP inhibitors in cancer therapy. Life Sci 2020; 261:118434. [PMID: 32941897 DOI: 10.1016/j.lfs.2020.118434] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/05/2020] [Accepted: 09/11/2020] [Indexed: 12/24/2022]
Abstract
Defective DNA repair is one of the most important features of tumors. BRCA1/2 participates in homologous recombination repair as a key tumor suppressor gene. BRCA1/2 mutation is an important biomarker for predicting the sensitivity of platinum salts and Poly (ADP-ribose) polymerase (PARP) inhibitors in breast cancer, ovarian cancer, and other cancers. However, epigenetic modifications and other mutations in homologous recombination repair (HRR) genes can also cause homologous recombination deficiency (HRD). Patients with no BRCA1/2 mutations, but bearing similar molecular phenotypes (BRCAness) can still obtain clinical benefits from treatment with platinum salts or PARP inhibitors. Therefore, an accurate assessment of HRD is essential for the formulation of personalized treatments. However, methods to identify HRD in tumors vary and are controversial. Currently, genomic scar assays have been used in multiple clinical trials to assess patient clinical benefit. This review summarizes the therapeutic effects of platinum salts and PARP inhibitors in breast and ovarian cancer, clarifies the predictive value of genomic scar assays in evaluating the clinical benefit of different patient groups and treatment options, and proposes the limitations and optimization of current HRD scoring methods. Using and optimizing genomic scar assays can help to accurately screen the population with the most benefit, expand the scope of drug application, and make the most suitable clinical decision based on individual differences.
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Affiliation(s)
- Rui Gou
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China; Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Hui Dong
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China; Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Bei Lin
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China; Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China.
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7
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Lips EH, Benard-Slagter A, Opdam M, Scheerman CE, Wesseling J, Hogervorst FBL, Linn SC, Savola S, Nederlof PM. BRCAness digitalMLPA profiling predicts benefit of intensified platinum-based chemotherapy in triple-negative and luminal-type breast cancer. Breast Cancer Res 2020; 22:79. [PMID: 32711554 PMCID: PMC7382055 DOI: 10.1186/s13058-020-01313-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/01/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND We previously showed that BRCA-like profiles can be used to preselect individuals with the highest risk of carrying BRCA mutations but could also indicate which patients would benefit from double-strand break inducing chemotherapy. A simple, robust, and reliable assay for clinical use that utilizes limited amounts of formalin-fixed, paraffin-embedded tumor tissue to assess BRCAness status in both ER-positive and ER-negative breast cancer (BC) is currently lacking. METHODS A digital multiplex ligation-dependent probe amplification (digitalMLPA) assay was designed to detect copy number alterations required for the classification of BRCA1-like and BRCA2-like BC. The BRCA1-like classifier was trained on 71 tumors, enriched for triple-negative BC; the BRCA2-like classifier was trained on 55 tumors, enriched for luminal-type BC. A shrunken centroid-based classifier was developed and applied on an independent validation cohort. A total of 114 cases of a randomized controlled trial were analyzed, and the association of the classifier result with intensified platinum-based chemotherapy response was assessed. RESULTS The digitalMLPA BRCA1-like classifier correctly classified 91% of the BRCA1-like samples and 82% of the BRCA2-like samples. Patients with a BRCA-like tumor derived significant benefit of high-dose chemotherapy (adjusted hazard ratio (HR) 0.12, 95% CI 0.04-0.44) which was not observed in non-BRCA-like patients (HR 0.9, 95% CI 0.37-2.18) (p = 0.01). Analysis stratified for ER status showed borderline significance. CONCLUSIONS The digitalMLPA is a reliable method to detect a BRCA1- and BRCA2-like pattern on clinical samples and predicts platinum-based chemotherapy benefit in both triple-negative and luminal-type BC.
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Affiliation(s)
- Esther H Lips
- Department of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
| | | | - Mark Opdam
- Department of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Caroline E Scheerman
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Jelle Wesseling
- Department of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Frans B L Hogervorst
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Sabine C Linn
- Department of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Suvi Savola
- Department of Oncogenetics, MRC Holland, Amsterdam, The Netherlands
| | - Petra M Nederlof
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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Merrill NM, Lachacz EJ, Vandecan NM, Ulintz PJ, Bao L, Lloyd JP, Yates JA, Morikawa A, Merajver SD, Soellner MB. Molecular determinants of drug response in TNBC cell lines. Breast Cancer Res Treat 2020; 179:337-347. [PMID: 31655920 PMCID: PMC7323911 DOI: 10.1007/s10549-019-05473-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/10/2019] [Indexed: 12/17/2022]
Abstract
PURPOSE There is a need for biomarkers of drug efficacy for targeted therapies in triple-negative breast cancer (TNBC). As a step toward this, we identify multi-omic molecular determinants of anti-TNBC efficacy in cell lines for a panel of oncology drugs. METHODS Using 23 TNBC cell lines, drug sensitivity scores (DSS3) were determined using a panel of investigational drugs and drugs approved for other indications. Molecular readouts were generated for each cell line using RNA sequencing, RNA targeted panels, DNA sequencing, and functional proteomics. DSS3 values were correlated with molecular readouts using a FDR-corrected significance cutoff of p* < 0.05 and yielded molecular determinant panels that predict anti-TNBC efficacy. RESULTS Six molecular determinant panels were obtained from 12 drugs we prioritized based on their efficacy. Determinant panels were largely devoid of DNA mutations of the targeted pathway. Molecular determinants were obtained by correlating DSS3 with molecular readouts. We found that co-inhibiting molecular correlate pathways leads to robust synergy across many cell lines. CONCLUSIONS These findings demonstrate an integrated method to identify biomarkers of drug efficacy in TNBC where DNA predictions correlate poorly with drug response. Our work outlines a framework for the identification of novel molecular determinants and optimal companion drugs for combination therapy based on these correlates.
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Affiliation(s)
- Nathan M Merrill
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Eric J Lachacz
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Nathalie M Vandecan
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Peter J Ulintz
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Liwei Bao
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - John P Lloyd
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Joel A Yates
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Aki Morikawa
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA
| | - Sofia D Merajver
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA.
| | - Matthew B Soellner
- Department of Internal Medicine, University of Michigan, 1500 Medical Center Dr, Ann Arbor, MI, 48109, USA.
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