Abstract
Background
We aimed to determine the effect of dual anti-HER2 blockade compared to monotherapy on clinically important outcomes.
Methods
We carried out a systematic review updated until July 2022. The outcomes included pathological complete response (pCR), clinical response, event-free survival, and overall survival.
Results
We identified eleven randomized clinical trials (2836 patients). When comparing paclitaxel plus dual treatment versus paclitaxel plus trastuzumab or lapatinib, dual treatment was associated with a higher probability of achieving a pathological complete response (OR 2.88, 95% CI 2.02–4.10). Addition of a taxane to an anthracycline plus cyclophosphamide and fluorouracil, plus lapatinib or trastuzumab, showed that the dual treatment was better than lapatinib alone (OR 2.47, 95% CI 1.41–4.34), or trastuzumab alone (OR 1.89, 95% CI 1.13–3.16). Dual treatment may result in an increase in survival outcomes and tumour clinical response, although such benefits are not consistent for all the combinations studied.
Conclusions
The use of dual blockade with combinations of trastuzumab and pertuzumab can be recommended for the neoadjuvant treatment of women with HER2-positive breast cancer.
PROSPERO Registration number: CRD42018110273.
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Data availability
All data generated or analysed during this study are included in this published article (and its supplementary information files).
References
Han S, Guo Q, Wang T. Prognostic significance of interactions between ER alpha and ER beta and lymph node status in breast cancer cases. Asian Pac J Cancer Prev. 2013;14:6081–4. https://doi.org/10.7314/apjcp.2013.14.10.6081.
World Health Organization. Cancer. The problem, http://www.who.int/mediacentre/factsheets/fs297/es/. Accessed 4 Mar 2021.
World Health Organization. Cancer. Breast cancer, http://www.who.int/topics/cancer/breastcancer/es/index1.html. Accessed 4 Mar 2021.
Global Burden of Disease Cancer Collaboration. Global, regional, and national cancer incidence, mortality, years of life lost, years lived with disability, and disability-adjusted life-years for 32 cancer groups, 1990 to 2015: a systematic analysis for the global burden of disease study. JAMA Oncol. 2017;3:524–48. https://doi.org/10.1001/jamaoncol.2016.5688.
Prat A, Pineda E, Adamo B, Galván P, Fernández A, Gaba L, et al. Clinical implications of the intrinsic molecular subtypes of breast cancer. Breast. 2015;24(Suppl 2):S26-35. https://doi.org/10.1016/j.breast.2015.07.008.
Mollen EWJ, Ient J, Tjan-Heijnen VCG, Boersma LJ, Miele L, Smidt ML, Vooijs MAGG. Moving breast cancer therapy up a notch. Front Oncol. 2018;8:518. https://doi.org/10.3389/fonc.2018.00518.
Wilson FR, Coombes ME, Brezden-Masley C, Yurchenko M, Wylie Q, Douma R, et al. Herceptin® (trastuzumab) in HER2-positive early breast cancer: a systematic review and cumulative network meta-analysis. Syst Rev. 2018;7:191. https://doi.org/10.1186/s13643-018-0854-y (PMID: 30428932).
Wöckel A, Festl J, Stüber T, Brust K, Krockenberger M, Heuschmann PU, et al. Interdisciplinary screening, diagnosis, therapy and follow-up of breast cancer. Guideline of the DGGG and the DKG (S3-Level, AWMF Registry Number 032/045OL, December 2017) - part 2 with recommendations for the therapy of primary, recurrent and advanced breast cancer. Geburtshilfe Frauenheilkd. 2018;78:1056–88. https://doi.org/10.1055/a-0646-4630.
Luque-Cabal M, García-Teijido P, Fernández-Pérez Y, Sánchez-Lorenzo L, Palacio-Vázquez I. Mechanisms behind the resistance to trastuzumab in HER2-amplified breast cancer and strategies to overcome it. Clin Med Insights Oncol. 2016;10(Suppl 1):21–30. https://doi.org/10.4137/CMO.S34537.
Pohlmann PR, Mayer IA, Mernaugh R. Resistance to trastuzumab in breast cancer. Clin Cancer Res. 2009;15:7479–91. https://doi.org/10.1158/1078-0432.CCR-09-0636.
Lavaud P, Andre F. Strategies to overcome trastuzumab resistance in HER2-overexpressing breast cancers: focus on new data from clinical trials. BMC Med. 2014;12:132. https://doi.org/10.1186/s12916-014-0132-3.
Yamaoka T, Kusumoto S, Ando K, Ohba M, Ohmori T. Receptor tyrosine kinase-targeted cancer therapy. Int J Mol Sci. 2018;19:E3491. https://doi.org/10.3390/ijms19113491.
Chaar M, Kamta J, Ait-Oudhia S. Mechanisms, monitoring, and management of tyrosine kinase inhibitors–associated cardiovascular toxicities. Onco Targets Ther. 2018;11:6227–37. https://doi.org/10.2147/OTT.S170138.
Finet JE, Tang WHW. Protecting the heart in cancer therapy. F1000Res. 2018. https://doi.org/10.12688/f1000research.15190.1.
Wöckel A, Lux MP, Janni W, Hartkopf AD, Nabieva N, Taran FA, et al. Update breast cancer 2018 (Part 3) - genomics, individualized medicine and immune therapies - in the middle of a new era: prevention and treatment strategies for early breast cancer. Geburtshilfe Frauenheilkd. 2018;78:1110–8. https://doi.org/10.1055/a-0715-2821.
Wu YT, Xu Z, Zhang K, Wu JS, Li X, Arshad B, et al. Efficacy and cardiac safety of the concurrent use of trastuzumab and anthracycline-based neoadjuvant chemotherapy for HER2-positive breast cancer: a systematic review and meta-analysis. Ther Clin Risk Manag. 2018;14:1789–97. https://doi.org/10.2147/TCRM.S176214.
Guyatt GH, Oxman AD, Schünemann HJ, Tugwell P, Knottnerus A. GRADE guidelines: a new series of articles in the journal of clinical epidemiology. J Clin Epidemiol. 2011;64:380–2. https://doi.org/10.1016/j.jclinepi.2010.09.011.
GRADE Working Group. GRADE Handbook 2013. Available from: www.guidelinedevelopment.org/handbook. Accessed 4 Mar 2021.
Treweek S, Oxman AD, Alderson P, Bossuyt PM, Brandt L, Brożek J, et al.; DECIDE Consortium. Developing and evaluating communication strategies to support informed decisions and practice based on evidence (DECIDE): protocol and preliminary results. Implement Sci. 2013. https://doi.org/10.1186/1748-5908-8-6.
Rosenbaum SE, Moberg J, Glenton C, Schünemann HJ, Lewin S, Akl E, et al. Developing evidence to decision frameworks and an interactive evidence to decision tool for making and using decisions and recommendations in health care. Glob Chall. 2018;2(9):1700081. https://doi.org/10.1002/gch2.201700081.
Lafranconi A, Pylkkänen L, Deandrea S, Bramesfeld A, Lerda D, Neamțiu L, et al. Intensive follow-up for women with breast cancer: review of clinical, economic and patient’s preference domains through evidence to decision framework. Health Qual Life Outcomes. 2017;15(1):206. https://doi.org/10.1186/s12955-017-0779-5.
Higgins JPT, Green S (editors). Cochrane handbook for systematic reviews of interventions version 5.1.0 [updated March 2011]. The Cochrane Collaboration 2011. Available from: www.handbook.cochrane.org. Accessed 4 Mar 2021.
Higgins JPT, Savović J, Page MJ, Elbers RG, Sterne JAC. Chapter 8: Assessing risk of bias in a randomized trial. In: Higgins JPT, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA, editors. Cochrane handbook for systematic reviews of interventions version 6.2 (updated February 2021). Cochrane; 2021. Available from: www.training.cochrane.org/handbook.
Deeks JJ, Higgins JPT, Altman DG (editors). Chapter 10: Analysing data and undertaking meta-analyses. In: Higgins JPT, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA, editors. Cochrane handbook for systematic reviews of interventions version 6.3 (updated February 2022). Cochrane; 2022. Available from: www.training.cochrane.org/handbook.
Review Manager (RevMan) [Computer program]. Version 5.3. Copenhagen: the nordic cochrane centre, The Cochrane Collaboration 2014. Available from: https://community.cochrane.org/help/tools-and-software/revman-5. Accessed 4 Mar 2021.
Moher D, Liberati A, Tetzlaff J, Altman DG; PRISMA Group. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. J Clin Epidemiol. 2009;62(10):1006–12. https://doi.org/10.1016/j.jclinepi.2009.06.005.
Gianni L, Pienkowski T, Im YH, Tseng LM, Liu MC, Lluch A, et al. 5-year analysis of neoadjuvant pertuzumab and trastuzumab in patients with locally advanced, inflammatory, or early-stage HER2-positive breast cancer (NeoSphere): a multicentre, open-label, phase 2 randomised trial. Lancet Oncol. 2016;17:791–800. https://doi.org/10.1016/S1470-2045(16)00163-7.
Bianchini G. Biomarker analysis of the NeoSphere study: pertuzumab, trastuzumab, and docetaxel versus trastuzumab plus docetaxel, pertuzumab plus trastuzumab, or pertuzumab. Breast Cancer Res. 2017;19:16. https://doi.org/10.1186/s13058-017-0806-9.
Triulzi T, Bianchini G, Di Cosimo S, Pienkowski T, Im YH, Bianchi GV, et al. The TRAR gene classifier to predict response to neoadjuvant therapy in HER2-positive and ER-positive breast cancer patients: an explorative analysis from the NeoSphere trial. Mol Oncol. 2022;16(12):2355–66. https://doi.org/10.1002/1878-0261.13141.
Azim HA Jr, Agbor-Tarh D, Bradbury I, Dinh P, Baselga J, Di Cosimo S, et al. Pattern of rash, diarrhea, and hepatic toxicities secondary to lapatinib and their association with age and response to neoadjuvant therapy: analysis from the NeoALTTO trial. J Clin Oncol. 2013;31:4504–11. https://doi.org/10.1200/JCO.2013.50.9448.
Huober J, Holmes E, Baselga J, de Azambuja E, Untch M, Fumagalli D, et al. Survival outcomes of the NeoALTTO study (BIG 1–06): updated results of a randomised multicenter phase III neoadjuvant clinical trial in patients with HER2-positive primary breast cancer. Eur J Cancer. 2019;118:169–77. https://doi.org/10.1016/j.ejca.2019.04.038.
Powles RL, Redmond D, Sotiriou C, Loi S, Fumagalli D, Nuciforo P, et al. Association of T-cell receptor repertoire use with response to combined trastuzumab-lapatinib treatment of HER2-positive breast cancer: secondary analysis of the NeoALTTO randomized clinical trial. JAMA Oncol. 2018;4: e181564. https://doi.org/10.1001/jamaoncol.2018.1564.
Chic N, Luen S, Nuciforo P, Salgado R, Fumagalli D, Hilbers F, et al. Abstract PS5–03: Celtil score and long-term survival outcome in early stage HER2-positive (HER2+) breast cancer treated with anti-HER2-based chemotherapy: A correlative analysis of neoALTTO trial. Cancer Res. 2021. https://doi.org/10.1158/1538-7445.SABCS20-PS5-03.
Pizzamiglio S, Ciniselli CM, Triulzi T, Gargiuli C, De Cecco L, de Azambuja E, et al. Integrated molecular and immune phenotype of HER2-positive breast cancer and response to neoadjuvant therapy: a NeoALTTO exploratory analysis. Clin Cancer Res. 2021;27(23):6307–13. https://doi.org/10.1158/1078-0432.CCR-21-1600.
Nuciforo P, Townend J, Saura C, de Azumbaja E, Hilbers F, Manukyants A, et al. Nine-year survival outcome of neoadjuvant lapatinib with trastuzumab for HER2-positive breast cancer (NeoALTTO, BIG 1–06): final analysis of a multicentre, open-label, phase 3 randomised clinical trial. Eur J Cancer. 2020;138(Suppl. 1):S15. https://doi.org/10.1016/S0959-8049(20)30560-8.
Dieci MV, Prat A, Tagliafico E, Paré L, Ficarra G, Bisagni G, et al. Integrated evaluation of PAM50 subtypes and immune modulation of pCR in HER2-positive breast cancer patients treated with chemotherapy and HER2-targeted agents in the CherLOB trial. Ann Oncol. 2016;27(10):1867–73. https://doi.org/10.1093/annonc/mdw262.
Guarneri V, Dieci MV, Griguolo G, Miglietta F, Girardi F, Bisagni G, et al.; of the CHER-Lob study team. (2021) Trastuzumab-lapatinib as neoadjuvant therapy for HER2-positive early breast cancer: survival analyses of the CHER-Lob trial. Eur J Cancer. 2021;153:133–141. doi: https://doi.org/10.1016/j.ejca.2021.05.018.
Fernandez-Martinez A, Krop IE, Hillman DW, Polley MY, Parker JS, Huebner L, et al. Survival, pathologic response, and genomics in CALGB 40601 (Alliance), a neoadjuvant phase III trial of paclitaxel-trastuzumab with or without lapatinib in HER2-positive breast cancer. J Clin Oncol. 2020;38(35):4184–93. https://doi.org/10.1200/JCO.20.01276.
Swain SM, Tang G, Lucas PC, Robidoux A, Goerlitz D, Harris BT, et al. Pathologic complete response and outcomes by intrinsic subtypes in NSABP B-41, a randomized neoadjuvant trial of chemotherapy with trastuzumab, lapatinib, or the combination. Breast Cancer Res Treat. 2019;178:389–99. https://doi.org/10.1007/s10549-019-05398-3.
Holmes FA, Espina V, Liotta LA, Nagarwala YM, Danso M, McIntyre KJ, et al. Pathologic complete response after preoperative anti-HER2 therapy correlates with alterations in PTEN, FOXO, phosphorylated Stat5, and autophagy protein signaling BMC Res. Notes. 2013;6:507. https://doi.org/10.1186/1756-0500-6-507.
Shao Z, Pang D, Yang H, Li W, Wang S, Cui S, et al. Efficacy, safety, and tolerability of pertuzumab, trastuzumab, and docetaxel for patients with early or locally advanced ERBB2-positive breast cancer in Asia: the PEONY phase 3 randomized clinical trial. JAMA Oncol. 2020;6(3): e193692. https://doi.org/10.1001/jamaoncol.2019.3692.
Bundred N, Porta N, Brunt AM, Cramer A, Hanby A, Shaaban AM, Rakha EA, Armstrong A, Cutress RI, Dodwell D, Emson MA, Evans A, Hartup SM, Horgan K, Miller SE, McIntosh SA, Morden JP, Naik J, Narayanan S, Ooi J, Skene AI, Cameron DA, Bliss JM. Combined perioperative lapatinib and trastuzumab in early HER2-positive breast cancer identifies early responders: randomized UK EPHOS-B trial long-term results. Clin Cancer Res. 2022;28(7):1323–34. https://doi.org/10.1158/1078-0432.CCR-21-3177.
Hatschek T, Foukakis T, Bjöhle J, Lekberg T, Fredholm H, Elinder E, et al. Neoadjuvant trastuzumab, pertuzumab, and docetaxel vs trastuzumab emtansine in patients with ERBB2-positive breast cancer: a phase 2 randomized clinical trial. JAMA Oncol. 2021;7(9):1360–7. https://doi.org/10.1001/jamaoncol.2021.1932.
Hurvitz SA, Caswell-Jin JL, McNamara KL, Zoeller JJ, Bean GR, Dichmann R, et al. Pathologic and molecular responses to neoadjuvant trastuzumab and/or lapatinib from a phase II randomized trial in HER2-positive breast cancer (TRIO-US B07). Nat Commun. 2020;11(1):5824. https://doi.org/10.1038/s41467-020-19494-2.
Attard CL, Pepper AN, Brown ST, Thompson MF, Thuresson PO, Yunger S, et al. Cost-effectiveness analysis of neoadjuvant pertuzumab and trastuzumab therapy for locally advanced, inflammatory, or early HER2-positive breast cancer in Canada. J Med Econ. 2015;18:173–88. https://doi.org/10.3111/13696998.2014.979938.
Albanell J, Ciruelos E, Colomer R, De la Haba J, Martin M, De Salas-Cansado M, et al. Adding pertuzumab in neoadjuvant treatment of patients with HER2+ breast cancer in Spain: a cost offsets study. Basic Clin Pharmacol Toxicol. 2015;117(Suppl 2):C070A.
Squires H, Pandor A, Thokala P, Stevens JW, Kaltenthaler E, Clowes M, et al. Pertuzumab for the neoadjuvant treatment of early stage HER2-positive breast cancer: an evidence review group perspective of a NICE single technology appraisal. Pharmacoeconomics. 2018;36:29–38. https://doi.org/10.1007/s40273-017-0556-7.
Baselga J, Bradbury I, Eidtmann H, Di Cosimo S, de Azambuja E, Aura C, et al. Lapatinib with trastuzumab for HER2-positive early breast cancer (NeoALTTO): a randomised, open-label, multicentre, phase 3 trial. Lancet. 2012;379:633–40. https://doi.org/10.1016/S0140-6736(11)61847-3.
Bonnefoi H, Jacot W, Saghatchian M, Moldovan C, Venat-Bouvet L, Zaman K, et al. Neoadjuvant treatment with docetaxel plus lapatinib, trastuzumab, or both followed by an anthracycline-based chemotherapy in HER2-positive breast cancer: results of the randomised phase II EORTC 10054 study. Ann Oncol. 2015;26:325–32. https://doi.org/10.1093/annonc/mdu551.
Carey LA, Berry DA, Cirrincione CT, Barry WT, Pitcher BN, Harris LN, et al. Molecular heterogeneity and response to neoadjuvant human epidermal growth factor receptor 2 targeting in CALGB 40601, a randomized phase III trial of paclitaxel plus trastuzumab with or without lapatinib. J Clin Oncol. 2016;34:542–9. https://doi.org/10.1200/JCO.2015.62.1268.
Gianni L, Pienkowski T, Im YH, Roman L, Tseng LM, Liu MC, et al. Efficacy and safety of neoadjuvant pertuzumab and trastuzumab in women with locally advanced, inflammatory, or early HER2-positive breast cancer (NeoSphere): a randomised multicentre, open-label, phase 2 trial. Lancet Oncol. 2012;13:25–32. https://doi.org/10.1016/S1470-2045(11)70336-9.
Guarneri V, Frassoldati A, Bottini A, Cagossi K, Bisagni G, Sarti S, et al. Preoperative chemotherapy plus trastuzumab, lapatinib, or both in human epidermal growth factor receptor 2-positive operable breast cancer: results of the randomized phase II CHER-LOB study. J Clin Oncol. 2012;30:1989–95. https://doi.org/10.1200/JCO.2011.39.0823.
Robidoux A, Tang G, Rastogi P, Geyer CE Jr, Azar CA, Atkins JN, et al. Lapatinib as a component of neoadjuvant therapy for HER2-positive operable breast cancer (NSABP protocol B-41): an open-label, randomised phase 3 trial. Lancet Oncol. 2013;14:1183–92. https://doi.org/10.1016/S1470-2045(13)70411-X.
Wu D, Chen T, Jiang H, Duan C, Zhang X, Lin Y, et al. Comparative efficacy and tolerability of neoadjuvant immunotherapy regimens for patients with HER2-positive breast cancer: a network meta-analysis. J Oncol. 2019;2019:3406972. https://doi.org/10.1155/2019/3406972.
Hicks M, Macrae ER, Abdel-Rasoul M, Layman R, Friedman S, Querry J, et al. Neoadjuvant dual HER2-targeted therapy with lapatinib and trastuzumab improves pathologic complete response in patients with early stage HER2-positive breast cancer: a meta-analysis of randomized prospective clinical trials. Oncologist. 2015;20:337–43. https://doi.org/10.1634/theoncologist.2014-0334.
Chen ZL, Shen YW, Li ST, Li CL, Zhang LX, Yang J, et al. The efficiency and safety of trastuzumab and lapatinib added to neoadjuvant chemotherapy in Her2-positive breast cancer patients: a randomized meta-analysis. Onco Targets Ther. 2016;9:3233–47. https://doi.org/10.2147/OTT.S106055.
Hurvitz SA, Martin M, Jung KH, Huang CS, Harbeck N, Valero V, et al. Neoadjuvant trastuzumab emtansine and pertuzumab in human epidermal growth factor receptor 2-positive breast cancer: three-year outcomes from the phase III KRISTINE Study. J Clin Oncol. 2019;37:2206–16. https://doi.org/10.1200/JCO.19.00882.
Schneeweiss A, Chia S, Hickish T, Harvey V, Eniu A, Hegg R, et al. Pertuzumab plus trastuzumab in combination with standard neoadjuvant anthracycline-containing and anthracycline-free chemotherapy regimens in patients with HER2-positive early breast cancer: a randomized phase II cardiac safety study (TRYPHAENA). Ann Oncol. 2013;24:2278–84. https://doi.org/10.1093/annonc/mdt182.
Clavarezza M, Puntoni M, Gennari A, Paleari L, Provinciali N, D’Amico M, DeCensi A. Dual block with lapatinib and trastuzumab versus single-agent trastuzumab combined with chemotherapy as neoadjuvant treatment of HER2-positive breast cancer: a meta-analysis of randomized trials. Clin Cancer Res. 2016;22:4594–603. https://doi.org/10.1158/1078-0432.CCR-15-1881.
Alba E, Albanell J, de la Haba J, Barnadas A, Calvo L, Sánchez-Rovira P, et al. Trastuzumab or lapatinib with standard chemotherapy for HER2-positive breast cancer: results from the GEICAM/2006-14 trial. Br J Cancer. 2014;110:1139–47. https://doi.org/10.1038/bjc.2013.831.
Untch M, Loibl S, Bischoff J, Eidtmann H, Kaufmann M, Blohmer JU, et al. Lapatinib versus trastuzumab in combination with neoadjuvant anthracycline-taxane-based chemotherapy (GeparQuinto, GBG 44): a randomised phase 3 trial. Lancet Oncol. 2012;13:135–44. https://doi.org/10.1016/S1470-2045(11)70397-7.
Untch M, Rezai M, Loibl S, Fasching PA, Huober J, Tesch H, et al. Neoadjuvant treatment with trastuzumab in HER2-positive breast cancer: results from the GeparQuattro study. J Clin Oncol. 2010;28:2024–31. https://doi.org/10.1200/JCO.2009.23.8451.
Debiasi M, Polanczyk CA, Ziegelmann P, Barrios C, Cao H, Dignam JJ, et al. Efficacy of Anti-HER2 agents in combination with adjuvant or neoadjuvant chemotherapy for early and locally advanced HER2-positive breast cancer patients: a network meta-analysis. Front Oncol. 2018;8:156. https://doi.org/10.3389/fonc.2018.00156.
Pascual T, Fernandez-Martinez A, Tanioka M, Dieci MV, Pernas S, Gavila J, et al. Independent validation of the PAM50-based chemo-endocrine score (CES) in hormone receptor-positive HER2-positive breast cancer treated with neoadjuvant Anti-HER2-based therapy. Clin Cancer Res. 2021;27(11):3116–25. https://doi.org/10.1158/1078-0432.CCR-20-410.
Korde LA, Somerfield MR, Carey LA, Crews JR, Denduluri N, Hwang ES, et al. Neoadjuvant chemotherapy, endocrine therapy, and targeted therapy for breast cancer: ASCO guideline. J Clin Oncol. 2021;39(13):1485–505. https://doi.org/10.1200/JCO.20.03399.
Tamirisa N, Hunt KK. Neoadjuvant chemotherapy, endocrine therapy, and targeted therapy for breast cancer: ASCO guideline. Ann Surg Oncol. 2022;29(3):1489–92. https://doi.org/10.1245/s10434-021-11223-3 (Epub 2022 Jan 6 PMID: 34989940).
NICE guideline NG101. Early and locally advanced breast cancer: diagnosis and management. 2018. www.nice.org.uk/guidance/ng101. Accessed 16 Oct 2022.
Cardoso F, Kyriakides S, Ohno S, Penault-Llorca F, Poortmans P, Rubio IT, Zackrisson S, Senkus E, ESMO Guidelines Committee. Early breast cancer: ESMO clinical practice guidelines for diagnosis, treatment and follow-up†. Ann Oncol. 2019;30(8):1194–220. https://doi.org/10.1093/annonc/mdz173.
Ayala de la Peña F, Andrés R, Garcia-Sáenz JA, Manso L, Margelí M, Dalmau E, et al. SEOM clinical guidelines in early stage breast cancer. Clin Transl Oncol. 2019;21:18–30. https://doi.org/10.1007/s12094-018-1973-6.
Clifford TJ, Barrowman NJ, Moher D. Funding source, trial outcome and reporting quality: are they related? Results of a pilot study. BMC Health Serv Res. 2002;2:18. https://doi.org/10.1186/1472-6963-2-18.
Prasad V, Kim C, Burotto M, Vandross A. The strength of association between surrogate end points and survival in oncology: a systematic review of trial-level meta-analyses. JAMA Intern Med. 2015;175:1389–98. https://doi.org/10.1001/jamainternmed.2015.2829.
Naci H, Davis C, Savović J, Higgins JPT, Sterne JAC, Gyawali B, et al. Design characteristics, risk of bias, and reporting of randomised controlled trials supporting approvals of cancer drugs by European Medicines Agency, 2014–16: cross sectional analysis. BMJ. 2019;366: l5221. https://doi.org/10.1136/bmj.l5221.
Wilson MK, Karakasis K, Oza AM. Outcomes and endpoints in trials of cancer treatment: the past, present, and future. Lancet Oncol. 2015;16:e32-42. https://doi.org/10.1016/S1470-2045(14)70375-4.
Wilson MK, Collyar D, Chingos DT, Friedlander M, Ho TW, Karakasis K, et al. Outcomes and endpoints in cancer trials: bridging the divide. Lancet Oncol. 2015;16:e43-52. https://doi.org/10.1016/S1470-2045(14)70380-8.
Gyawali B, Hey SP, Kesselheim AS. Assessment of the clinical benefit of cancer drugs receiving accelerated approval. JAMA Intern Med. 2019;179:906–13. https://doi.org/10.1001/jamainternmed.2019.0462.
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The authors received funding from GEICAM Spanish Breast Cancer Group. This work was developed within a project aimed to update the GEICAM previous clinical guidelines.
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Juan Carlos Vazquez is PhD candidate Program in Biomedical Research Methodology and Public Health, Universitat Autònoma de Barcelona.
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Vazquez, J.C., Antolin, S., Ruiz-Borrego, M. et al. Dual neoadjuvant blockade plus chemotherapy versus monotherapy for the treatment of women with non-metastatic HER2-positive breast cancer: a systematic review and meta-analysis. Clin Transl Oncol 25, 941–958 (2023). https://doi.org/10.1007/s12094-022-02998-2
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DOI: https://doi.org/10.1007/s12094-022-02998-2