Antonios Valachis

Articles in journals

• Staby Olsén, J. , Valachis, A. , Karlsson, L. & Johansson, B. (2024). Biochemical outcome of prostate cancer patients treated with hypofractionated external radiation and a single high-dose-rate brachytherapy boost.  Brachytherapy. [BibTeX]
• Ladjevardi, C. O. , Skribek, M. , Koliadi, A. , Rydén, V. , El-Naggar, A. I. , Digkas, E. , Valachis, A. & Ullenhag, G. J. (2024). Differences in immune-related toxicity between PD-1 and PD-L1 inhibitors: a retrospective cohort study in patients with advanced cancer.  Cancer Immunology and Immunotherapy, 74 (1). [BibTeX]
• Valachis, A. , Biganzoli, L. , Christopoulou, A. , Fjermeros, K. , Fountzila, E. , Geisler, J. , Gomez-Bravo, R. , Karihtala, P. & et al. (2024). Implementing geriatric assessment for dose optimization of CDK4/6 inhibitors in older breast cancer patients.  Future Oncology, 20 (37), 2937-2948. [BibTeX]
• Digkas, E. , Smith, D. , Wennstig, A. , Matikas, A. , Tegnelius, E. & Valachis, A. (2024). Incidence and risk factors of hypothyroidism after treatment for early breast cancer: a population-based cohort study.  Breast Cancer Research and Treatment, 204 (1), 79-87. [BibTeX]
• Wickberg, Å. , Prag, C. , Valachis, A. , Karlsson, L. & Johansson, B. (2024). Intraoperative Radiation Therapy Delivered by Brachytherapy in Breast Cancer: An Interim Analysis of a Phase 2 Trial.  Clinical Breast Cancer, 24 (3), 243-252. [BibTeX]
• Valachis, A. & Lindman, H. (2024). Lessons learned from an unsuccessful decentralized clinical trial in Oncology.  npj Digital Medicine, 7 (1). [BibTeX]
• Kahlmeter Brandell, J. , Valachis, A. , Ugge, H. , Smith, D. & Johansson, B. (2024). Moderately hypofractionated prostate-only versus whole-pelvis radiotherapy for high-risk prostate cancer: A retrospective real-world single-center cohort study.  Clinical and Translational Radiation Oncology, 48. [BibTeX]
• Olsson Ladjevardi, C. , Koliadi, A. , Rydén, V. , El-Naggar, A. I. , Digkas, E. , Valachis, A. & Ullenhag, G. J. (2024). Multiple immune-related adverse events secondary to checkpoint inhibitor therapy in patients with advanced cancer: association with treatment effectiveness.  Frontiers in Oncology, 14. [BibTeX]
• Palmér, S. , Valachis, A. , Lindman, H. , Smith, D. R. , Wickberg, Å. , Killander, F. , Bjöhle, J. , Einbeigi, Z. & et al. (2024). Omission of postoperative radiotherapy after breast-conserving surgery in low-risk breast cancer.  Journal of the National Cancer Institute. [BibTeX]
• Jafer, F. , Malki, S. , Akram, M. , Gulwarisdotter, T. , Karakatsanis, A. & Valachis, A. (2024). Postmastectomy radiation therapy in breast cancer patients with micrometastatic disease in sentinel node dissection: A cohort study and meta-analysis.  Clinical and Translational Radiation Oncology, 46. [BibTeX]
• Rydén, V. , El-Naggar, A. I. , Koliadi, A. , Ladjevardi, C. O. , Digkas, E. , Valachis, A. & Ullenhag, G. J. (2024). The role of dacarbazine and temozolomide therapy after treatment with immune checkpoint inhibitors in malignant melanoma patients: A case series and meta-analysis.  Pigment Cell & Melanoma Research, 37 (3), 352-362. [BibTeX]
• Ilić, M. , Ivanović, M. , Kurbalija, V. & Valachis, A. (2024). Towards optimal learning: Investigating the impact of different model updating strategies in federated learning.  Expert systems with applications, 249 (Part A). [BibTeX]
• Schiza, A. , Fredriksson, I. , Sund, M. & Valachis, A. (2024). Treatment utilization and effectiveness of neoadjuvant chemotherapy comparing men and women diagnosed with breast cancer: a Swedish retrospective cohort study.  Breast Cancer Research and Treatment, 203, 235-243. [BibTeX]
• Strell, C. , Smith, D. , Valachis, A. , Woldeyesus, H. , Wadsten, C. , Micke, P. , Fredriksson, I. & Schiza, A. (2024). Use of beta-blockers in patients with ductal carcinoma in situ and risk of invasive breast cancer recurrence: a Swedish retrospective cohort study.  Breast Cancer Research and Treatment, 207 (2), 293-299. [BibTeX]
• Schiza, A. , Fredriksson, I. , Sund, M. & Valachis, A. (2023). De Novo metastatic breast cancer in males versus females: a Swedish, population-based cohort study.  JNCI cancer spectrum, 7 (4). [BibTeX]
• Castelo-Branco, L. , Pellat, A. , Martins-Branco, D. , Valachis, A. , Derksen, J. W. G. , Suijkerbuijk, K. P. M. , Dafni, U. , Dellaporta, T. & et al. (2023). ESMO Guidance for Reporting Oncology real-World evidence (GROW).  Annals of Oncology, 34 (12), 1097-1112. [BibTeX]
• Sund, M. , Garmo, H. , Andersson, A. , Margolin, S. , Ahlgren, J. & Valachis, A. (2023). Estrogen therapy after breast cancer diagnosis and breast cancer mortality risk.  Breast Cancer Research and Treatment, 198 (2), 361-368. [BibTeX]
• Olsson Ladjevardi, C. , Koliadi, A. , Rydén, V. , Inan El-Naggar, A. , Digkas, E. , Valachis, A. & Ullenhag, G. J. (2023). Predicting immune-related adverse events using a simplified frailty score in cancer patients treated with checkpoint inhibitors: A retrospective cohort study.  Cancer Medicine, 12 (12), 13217-13224. [BibTeX]
• Rodriguez-Wallberg, K. A. , Nilsson, H. P. , Bergh, J. , Malmros, J. , Ljungman, P. , Foukakis, T. , Stragliotto, C. L. , Friman, E. I. & et al. (2023). ProFertil study protocol for the investigation of gonadotropin-releasing hormone agonists (GnRHa) during chemotherapy aiming at fertility protection of young women and teenagers with cancer in Sweden-a phase III randomised double-blinded placebo-controlled study.  BMJ Open, 13 (12). [BibTeX]
• Savic, M. , Kurbalija, V. , Ilic, M. , Ivanovic, M. , Jakovetic, D. , Valachis, A. , Autexier, S. , Rust, J. & et al. (2023). The Application of Machine Learning Techniques in Prediction of Quality of Life Features for Cancer Patients.  Computer Science and Information Systems, 20 (1), 381-404. [BibTeX]
• Tzelves, L. , Manolitsis, I. , Varkarakis, I. , Ivanovic, M. , Kokkonidis, M. , Useros, C. S. , Kosmidis, T. , Muñoz, M. & et al. (2022). Artificial intelligence supporting cancer patients across Europe - The ASCAPE project.  PLOS ONE, 17 (4). [BibTeX]
• Mauri, D. , Valachis, A. & Tolia, M. (2022). COVID-19 Vaccinations: Summary Guidance for Cancer Patients in 28 Languages: Breaking Barriers to Cancer Patient Information.  Reviews on recent clinical trials, 17 (1), 11-14. [BibTeX]
• Ohlsson-Nevo, E. , Arvidsson Lindvall, M. , Hellerstedt Börjeson, S. , Hagberg, L. , Hultgren Hörnquist, E. , Valachis, A. , Wickberg, Å. & Duberg, A. (2022). Digitally distributed Yoga Intervention in Breast Cancer Rehabilitation (DigiYoga CaRe): protocol for a randomised controlled trial.  BMJ Open, 12 (11). [BibTeX]
• Mauri, D. , Kamposioras, K. , Matthaios, D. , Tolia, M. , Nixon, I. , Dambrosio, M. , Zarkavelis, G. , Papadimitriou, K. & et al. (2022). Next-Generation Sequencing of Circulating Tumor DNA Can Optimize Second-Line Treatment in RAS Wild-Type Metastatic Colorectal Cancer after Progression on anti-EGFR Therapy: Time to Rethink Our Approach.  Oncology Research and Treatment, 45 (4), 216-220. [BibTeX]
• Löfgren, D. , Valachis, A. & Olivecrona, M. (2022). Older meningioma patients: a retrospective population-based study of risk factors for morbidity and mortality after neurosurgery..  Acta Neurochirurgica, 164, 2987-2997. [BibTeX]
• Valachis, A. , Carlqvist, P. , Ma, Y. , Szilcz, M. , Freilich, J. , Vertuani, S. , Holm, B. & Lindman, H. (2022). Overall survival of patients with metastatic breast cancer in Sweden: a nationwide study.  British Journal of Cancer, 127 (4), 720-725. [BibTeX]
• Olsén, J. S. , Estefan, D. , Valachis, A. , Jakobsson, F. , Karlsson, L. & Johansson, B. (2022). Predicting toxicity caused by high-dose-rate brachytherapy single boost for prostate cancer.  Journal of Contemporary Brachytherapy, 14 (1), 7-14. [BibTeX]
• Naeser, Y. , Helgadottir, H. , Hansson, J. , Ingvar, C. , Elander, N. O. , Flygare, P. , Nilsson, C. , Jakobsson, F. & et al. (2022). Quality of Life in the First Year of Follow-Up in a Randomized Multicenter Trial Assessing the Role of Imaging after Radical Surgery of Stage IIB-C and III Cutaneous Melanoma (TRIM Study).  Cancers, 14 (4). [BibTeX]
• Löfgren, D. , Valachis, A. & Olivecrona, M. (2022). Risk for morbidity and mortality after neurosurgery in older patients with high grade gliomas: a retrospective population based study.  BMC Geriatrics, 22 (1). [BibTeX]
• Sund, M. , Garcia-Argibay, M. , Garmo, H. , Ahlgren, J. , Wennstig, A. , Fredriksson, I. , Lindman, H. & Valachis, A. (2021). Aromatase inhibitors use and risk for cardiovascular disease in breast cancer patients: A population-based cohort study.  Breast, 59, 157-164. [BibTeX]
• Karakatsanis, A. , Charalampoudis, P. , Pistioli, L. , Di Micco, R. , Foukakis, T. & Valachis, A. (2021). Axillary evaluation in ductal cancer in situ of the breast: challenging the diagnostic accuracy of clinical practice guidelines.  British Journal of Surgery, 108 (9), 1120-1125. [BibTeX]
• Valachis, A. , Rosén, C. , Koliadi, A. , Digkas, E. , Gustavsson, A. , Nearchou, A. & Ullenhag, G. J. (2021). Improved survival without increased toxicity with influenza vaccination in cancer patients treated with checkpoint inhibitors.  Oncoimmunology, 10 (1). [BibTeX]
• Schiza, A. , Mauri, D. , Fredriksson, I. , Wennstig, A. & Valachis, A. (2021). Predictive role of HER2-status on the effectiveness of endocrine adjuvant treatment in postmenopausal breast cancer patients: a population-based cohort study.  Breast Cancer Research and Treatment, 186, 779-789. [BibTeX]
• Valachis, A. , Nyström, P. , Fredriksson, I. , Wennstig, A. & Ahlgren, J. (2021). Treatment patterns, risk for hospitalization and mortality in older patients with triple negative breast cancer.  Journal of Geriatric Oncology, 12 (2), 212-218. [BibTeX]
• Valachis, A. , Carlqvist, P. , Szilcz, M. , Freilich, J. , Vertuani, S. , Holm, B. & Lindman, H. (2021). Use of classifiers to optimise the identification and characterisation of metastatic breast cancer in a nationwide administrative registry.  Acta Oncologica, 60 (12), 1604-1610. [BibTeX]
• Mauri, D. , Tzachanis, D. , Valachis, A. , Kamposioras, K. , Tolias, M. , Dambrosio, M. , Zarkavelis, G. , Gkoura, S. & et al. (2020). Behind the numbers and the panic of a viral pandemic: fixed restrictive oncology guidance may jeopardize patients' survival.  Balkan Union of Oncology. Journal, 25 (3), 1277-1280. [BibTeX]
• Valachis, A. , Garmo, H. , Fredriksson, I. , Sund, M. , Lagerqvist, B. & Holmberg, L. (2020). Bleeding risk in breast cancer patients during concomitant administration of warfarin and tamoxifen: A population-based nested case-control study.  The Breast Journal, 26 (5), 981-987. [BibTeX]
• Joona, T. B. , Digkas, E. , Wennstig, A. , Nyström, K. , Nearchou, A. , Nilsson, C. , Pauksens, K. & Valachis, A. (2020). Influenza vaccination in breast cancer patients during subcutaneous trastuzumab in adjuvant setting.  Breast Cancer Research and Treatment, 184 (1), 45-52. [BibTeX]
• Mauri, D. , Kamposioras, K. , Tzachanis, D. , Tolia, M. , Valachis, A. , Dambrosio, M. , Alongi, F. , De Mello, R. A. & et al. (2020). Patient and family support in the era of fake e-medicine: Food for thought from an international consensus panel.  ESMO Open, 5 (2). [BibTeX]
• Matikas, A. , Zerdes, I. , Lövrot, J. , Sifakis, E. , Richard, F. , Sotiriou, C. , Rassidakis, G. , Bergh, J. & et al. (2020). PD-1 protein and gene expression as prognostic factors in early breast cancer.  ESMO Open, 5 (6). [BibTeX]
• Kofteridis, D. P. , Andrianaki, A. M. , Maraki, S. , Mathioudaki, A. , Plataki, M. , Alexopoulou, C. , Ioannou, P. , Samonis, G. & et al. (2020). Treatment pattern, prognostic factors, and outcome in patients with infection due to pan-drug-resistant gram-negative bacteria.  European Journal of Clinical Microbiology and Infectious Diseases, 39 (5), 965-970. [BibTeX]
• Naeser, Y. , Helgadottir, H. , Brandberg, Y. , Hansson, J. , Bagge, R. O. , Elander, N. O. , Ingvar, C. , Isaksson, K. & et al. (2020). TRIM study protocol: prospective randomized multicenter Trial to assess the Role of Imaging during follow-up after radical surgery of stage IIB-C and III cutaneous malignant Melanoma.  BMC Cancer, 20 (1). [BibTeX]
• Jonsson, G. , Philipson, L. , Villman, K. & Valachis, A. (2020). Upfront Radiotherapy in Patients With Asymptomatic Incurable Rectal Cancer: A Retrospective Cohort Study.  Anticancer Research, 40 (10), 5853-5860. [BibTeX]
• Mörth, C. , Valachis, A. , Abu Sabaa, A. , Marshall, K. , Hedström, G. , Flogegård, M. , Baecklund, E. & Enblad, G. (2019). Autoimmune disease in patients with diffuse large B-cell lymphoma: occurrence and impact on outcome.  Acta Oncologica, 58 (8), 1170-1177. [BibTeX]
• Mauri, D. , Tsali, L. , Polyzos, N. P. , Valachis, A. , Zafeiria, G. , Kalopita, K. , Tsiara, A. , Yerolatsite, M. & et al. (2019). Facing internet fake-medicine and web para-pharmacy in the total absence of official recommendations from medical societies.  Journal of B.U.ON. : official journal of the Balkan Union of Oncology, 24 (4), 1314-1325. [BibTeX]
• Mauri, D. , Zafeiri, G. , Yerolatsite, M. , Tsali, L. , Zarkavelis, G. , Tsiara, A. , Polyzos, N. P. , Valachis, A. & et al. (2019). Global coverage and consistency of guideline recommendations for cancer cachexia on the Web in 2011 and 2018.  Contemporary Oncology / Wspólczesna Onkologia, 23 (2), 100-109. [BibTeX]
• Mjelstad, A. , Zakariasson, G. & Valachis, A. (2019). Optimizing antiresorptive treatment in patients with bone metastases: time to initiation, switching strategies, and treatment duration.  Supportive Care in Cancer, 27 (10), 3859-3867. [BibTeX]
• Valachis, A. , Sundqvist, M. , Carlsson, L. , Li, B. , Chiesa, F. , Uhde, M. & Sanglier, T. (2019). Use of subcutaneous and intravenous trastuzumab: real-world experience from three hospitals in Sweden.  Future Oncology, 15 (23), 2733-2741. [BibTeX]
• Mörth, C. , Valachis, A. , Sabaa, A. A. , Molin, D. , Flogegård, M. & Enblad, G. (2018). Does the omission of vincristine in patients with diffuse large B cell lymphoma affect treatment outcome?.  Annals of Hematology, 97, 2129-2135. [BibTeX]
• Colleoni, M. , Luo, W. , Karlsson, P. , Chirgwin, J. , Aebi, S. , Jerusalem, G. , Neven, P. , Hitre, E. & et al. (2018). Extended adjuvant intermittent letrozole versus continuous letrozole in postmenopausal women with breast cancer (SOLE): a multicentre, open-label, randomised, phase 3 trial.  The Lancet Oncology, 19 (1), 127-138. [BibTeX]
• Zewenghiel, L. , Lindman, H. & Valachis, A. (2018). Impact of body mass index on the efficacy of endocrine therapy in patients with metastatic breast cancer: A retrospective two-center cohort study.  Breast, 40, 136-140. [BibTeX]
• Valachis, A. , Mamounas, E. P. , Mittendorf, E. A. , Hayashi, N. , Ishitobi, M. , Natoli, C. , Fitzal, F. , Rubio, I. T. & et al. (2018). Risk factors for locoregional disease recurrence after breast-conserving therapy in patients with breast cancer treated with neoadjuvant chemotherapy: An international collaboration and individual patient meta-analysis.  Cancer, 124 (14), 2923-2930. [BibTeX]
• Kofteridis, D. P. , Valachis, A. , Dimopoulou, D. , Andrianaki, A. M. , Christidou, A. , Maraki, S. , Spernovasilis, N. A. & Samonis, G. (2017). Factors Influencing Non-albicans Candidemia: A Case-Case-Control Study.  Mycopathologia, 182 (7-8), 665-672. [BibTeX]
• Valachis, A. , Garmo, H. , Weinman, J. , Fredriksson, I. , Ahlgren, J. , Sund, M. & Holmberg, L. (2016). Effect of selective serotonin reuptake inhibitors use on endocrine therapy adherence and breast cancer mortality: a population-based study.  Breast Cancer Research and Treatment, 159 (2), 293-303. [BibTeX]

Articles, reviews/surveys

• Karihtala, P. , Schiza, A. , Fountzilas, E. , Geisler, J. , Meattini, I. , Risi, E. , Biganzoli, L. & Valachis, A. (2024). Clinical trials in older patients with cancer: typical challenges, possible solutions, and a paradigm of study design in breast cancer.  Acta Oncologica, 63, 441-447. [BibTeX]
• Frid, S. , Amat-Fernández, C. , Fuentes-Expósito, M. Á. , Muñoz-Mateu, M. , Valachis, A. , Sisó-Almirall, A. & Grau-Corral, I. (2024). Mapping the Evidence on the Impact of mHealth Interventions on Patient-Reported Outcomes in Patients With Breast Cancer: A Systematic Review.  JCO Clinical Cancer Informatics, 8. [BibTeX]
• Rosin, J. , Svegrup, E. , Valachis, A. & Zerdes, I. (2023). Discordance of PIK3CA mutational status between primary and metastatic breast cancer: a systematic review and meta-analysis.  Breast Cancer Research and Treatment, 201 (2), 161-169. [BibTeX]
• Pantiora, E. , Tasoulis, M. K. , Valachis, A. , Eriksson, S. , Kühn, T. , Karakatsanis, A. & Rubio, I. T. (2023). Evolution and refinement of magnetically guided sentinel lymph node detection in breast cancer: meta-analysis.  British Journal of Surgery, 110 (4), 410-419. [BibTeX]
• Kastora, S. L. , Holmquist, A. , Valachis, A. , Rocco, N. , Meattini, I. , Somaiah, N. , Peled, A. , Chatterjee, A. & et al. (2023). Outcomes of Different Quality of Life Assessment Modalities After Breast Cancer Therapy: A Network Meta-analysis.  JAMA Network Open, 6 (6). [BibTeX]
• Tollan, C. J. , Pantiora, E. , Valachis, A. , Karakatsanis, A. & Tasoulis, M. K. (2022). A Systematic Review and Meta-Analysis on the Role of Repeat Breast-Conserving Surgery for the Management of Ipsilateral Breast Cancer Recurrence.  Annals of Surgical Oncology, 29 (10), 6440-6453. [BibTeX]
• Nikyar, N. , Tegnelius, E. & Valachis, A. (2022). Adjuvant locoregional radiation therapy in breast cancer patients with pathologic complete response after neoadjuvant chemotherapy: A systematic review and meta-analysis.  Clinical and Translational Radiation Oncology, 33, 45-52. [BibTeX]
• Bergman, M. , Fountoukidis, G. , Smith, D. , Ahlgren, J. , Lambe, M. & Valachis, A. (2022). Effect of Smoking on Treatment Efficacy and Toxicity in Patients with Cancer: A Systematic Review and Meta-Analysis.  Cancers, 14 (17). [BibTeX]
• Zhu, Y. , Tzoras, E. , Matikas, A. , Bergh, J. , Valachis, A. , Zerdes, I. & Foukakis, T. (2022). Expression patterns and prognostic implications of tumor-infiltrating lymphocytes dynamics in early breast cancer patients receiving neoadjuvant therapy: A systematic review and meta-analysis.  Frontiers in Oncology, 12. [BibTeX]
• Digkas, E. , Tabiim, A. J. , Smith, D. & Valachis, A. (2022). Randomized Versus Real-World Evidence on the Efficacy and Toxicity of Checkpoint Inhibitors in Cancer in Patients with Advanced Non-small Cell Lung Cancer or Melanoma: A Meta-analysis.  Targeted oncology, 17 (5), 507-515. [BibTeX]
• Smith, D. , Sepehr, S. , Karakatsanis, A. , Strand, F. & Valachis, A. (2022). Yield of Surveillance Imaging After Mastectomy With or Without Reconstruction for Patients With Prior Breast Cancer: A Systematic Review and Meta-analysis.  JAMA Network Open, 5 (12). [BibTeX]
• Boman, C. , Zerdes, I. , Mårtensson, K. , Bergh, J. , Foukakis, T. , Valachis, A. & Matikas, A. (2021). Discordance of PD-L1 status between primary and metastatic breast cancer: A systematic review and meta-analysis.  Cancer Treatment Reviews, 99. [BibTeX]
• Mokhtary, A. , Karakatsanis, A. & Valachis, A. (2021). Mammographic Density Changes over Time and Breast Cancer Risk: A Systematic Review and Meta-Analysis.  Cancers, 13 (19). [BibTeX]
• Paakkola, N. , Karakatsanis, A. , Mauri, D. , Foukakis, T. & Valachis, A. (2021). The prognostic and predictive impact of low estrogen receptor expression in early breast cancer: a systematic review and meta-analysis.  ESMO Open, 6 (6). [BibTeX]
• Kamposioras, K. , Mauri, D. , Papadimitriou, K. , Anthoney, A. , Hindi, N. , Petricevic, B. , Dambrosio, M. , Valachis, A. & et al. (2020). Synthesis of Recommendations From 25 Countries and 31 Oncology Societies: How to Navigate Through Covid-19 Labyrinth.  Frontiers in Oncology, 10. [BibTeX]
• Matikas, A. , Zerdes, I. , Lövrot, J. , Richard, F. , Sotiriou, C. , Bergh, J. , Valachis, A. & Foukakis, T. (2019). Prognostic implications of PD-L1 expression in breast cancer: systematic review and meta-analysis of immunohistochemistry and pooled analysis of transcriptomic data.  Clinical Cancer Research, 25 (18), 5717-5726. [BibTeX]
• Valachis, A. & Ullenhag, G. J. (2017). Discrepancy in BRAF status among patients with metastatic malignant melanoma: A meta-analysis.  European Journal of Cancer, 81, 106-115. [BibTeX]

Conference papers

• Palmér, S. , Valachis, A. , Smith, D. , Wickberg, Å. , Killander, F. , Lindman, H. , Bjöhle, J. , Einbeigi, Z. & et al. (2024). 95P Omission of postoperative radiation therapy in older patients with low-risk breast cancer treated with breast-conserving surgery: Long-term results of the KohoRT study. In:  ESMO Open. Paper presented at ESMO Breast Cancer 2024, Berlin, Germany, 15-17 May 2024. BMJ Publishing Group Ltd. [BibTeX]
• Ohlsson-Nevo, E. , Arvidsson Lindvall, M. , Hellerstedt Börjesson, S. , Hagberg, L. , Hultgren Hörnquist, E. , Valachis, A. , Wickberg, Å. & Duberg, A. (2023). A Digitally Distributed Yoga Intervention in Breast Cancer Rehabilitation (DigiYogaCaRe): Protocol for a Randomized Controlled Trial. Paper presented at Nordic Conference in Nursing Research, Reykjavik, Iceland, 2-4 October, 2023. [BibTeX]
• Pellat, A. , Grinda, T. , Prelaj, A. , Cresta, P. , Valachis, A. , Zerdes, I. , Branco, D. M. , Provenzano, L. & et al. (2023). Comprehensive mapping review of real-world evidence publications focusing on targeted therapies in solid tumors: A collaborative work from ESMO real-world data and Digital Health Working Group. In:  Annals of Oncology. Paper presented at Annual Meeting of the European-Society-for-Medical-Oncology (ESMO), Barcelona, Spain, October 20-24, 2023. (pp. S925-S925). Elsevier. [BibTeX]
• Valachis, A. , Lindman, H. , Lauppe, R. , Lilja, M. , Jakobsson, M. & Nyqvist, D. (2023). Palbociclib dose patterns in Swedish patients with metastatic breast cancer: 5-year update from the SIRI study. In:  Annals of Oncology. Paper presented at Annual Meeting of the European-Society-for-Medical-Oncology (ESMO), Barcelona, Spain, October 20-24, 2023. (pp. S362-S362). Elsevier. [BibTeX]
• Derksen, J. W. G. , Branco, D. M. , Pellat, A. , Van Nassau, S. C. M. W. , Valachis, A. , Aggarwal, A. , Koopman, M. , Pentheroudakis, G. & et al. (2023). Real-world evidence contributions to European medicines agency's safety and efficacy evaluations of oncology targeted therapies between 2018-2022. In:  Annals of Oncology. Paper presented at Annual Meeting of the European-Society-for-Medical-Oncology (ESMO), Barcelona, Spain, October 20-24, 2023. (pp. S930-S930). Elsevier. [BibTeX]
• Tollan, C. J. , Pantiora, E. , Valachis, A. , Karakatsanis, A. & Tasoulis, M. K. (2022). ASO Visual Abstract: A Systematic Review and Meta-analysis on the Role of Repeat Breast-Conserving Surgery for the Management of Ipsilateral Breast Cancer Recurrence.. In:  Annals of Surgical Oncology. Springer. [BibTeX]
• Karihtala, P. , Valachis, A. , Tuxen, M. & Geisler, J. (2022). Current treatment landscape of HR+/HER2-advanced breast cancer in the Nordics: A modified Delphi study. In:  Annals of Oncology. Paper presented at ESMO Breast Cancer 2022, Berlin, Germany, May 3-5, 2022. (pp. S218-S218). Elsevier. [BibTeX]
• Nicolaescu, T. , Abu Sabaa, A. , Hedell, K. , Morth, C. , Valachis, A. & Enblad, G. (2022). Prognostic relevance of pre-treatment c-reactive protein to albumin ratio in patients with diffuse large b cell lymphoma. In:  Annals of Oncology. Paper presented at Annual Meeting of the European-Society-for-Medical-Oncology (ESMO), Paris, France, September 9-13, 2022. (pp. S832-S832). Elsevier. [BibTeX]
• Isheden, G. , Dalén, J. , Holm, B. , Lindman, H. , Valachis, A. & Vertuani, S. (2022). SWEDISH NATIONWIDE REGISTER DATA AS A LOW-COST RESOURCE TO DETECT DRUG-REPURPOSING SIGNALS: A STUDY ON DE NOVO METASTATIC BREAST CANCER PATIENTS. In:  Value in Health. Paper presented at ISPOR Europe 2022, Vienna, Austria, November 6-9, 2022. (pp. S375-S375). Elsevier. [BibTeX]
• Zerdes, I. , Zhu, Y. , Tzoras, E. , Matikas, A. , Bergh, J. C. S. , Valachis, A. & Foukakis, T. (2022). Tumor-infiltrating lymphocytes (TILs) dynamics in breast cancer patients receiving neoadjuvant therapy: A systematic review and meta-analysis. In:  Journal of Clinical Oncology. American Society of Clinical Oncology. [BibTeX]
• Lampropoulos, K. , Kosmidis, T. , Autexier, S. , Savic, M. , Athanatos, M. , Kokkonidis, M. , Koutsouri, T. , Vizitiu, A. & et al. (2021). ASCAPE: An open AI ecosystem to support the quality of life of cancer patients. In:  2021 IEEE 9th International Conference on Healthcare Informatics (ICHI). Paper presented at 9th IEEE International Conference on Healthcare Informatics (IEEE ICHI), Victoria, BC, Canada (Virtual conference), August 9-12, 2021. (pp. 301-310). IEEE Computer Society. [BibTeX]
• Valachis, A. , Lindman, H. , Wahl, H. F. , Lauppe, R. , Lilja, M. , Nyqvist, D. & Jakobsson, M. (2021). Palbociclib dose patterns in Swedish patients with metastatic breast cancer: Evidence from the SIRI study. In:  Annals of Oncology. Elsevier. [BibTeX]
• Karakatsanis, A. , Foukakis, T. , Karlsson, P. , Mamounas, E. , Chagpar, A. , Boyages, J. , Rubio, I. , Naume, B. & et al. (2020). Axillary Staging in the Setting of a Preoperative Diagnosis of Ductal Cancer In Situ (DCIS): Results of an International Expert Panel and a Critical Guideline Performance Using Frequentist and Bayesian Analysis. In:  Annals of Surgical Oncology. Springer. [BibTeX]
• Zerdes, I. , Matikas, A. , Lövrot, J. , Sifakis, E. G. , Richard, F. , Sotiriou, C. , Rassidakis, G. Z. , Bergh, J. C. S. & et al. (2020). PD-1 protein and gene expression in early breast cancer: Prognostic implications. In:  Journal of Clinical Oncology. American Society of Clinical Oncology. [BibTeX]
• Kornalijnslijper-Altena, R. , Andersson, A. , Brandberg, Y. , Kessler, L. E. , Elinder, E. , Hartman, J. , Hellstrom, M. , Johansson, H. & et al. (2020). PREDIX II HER2: Improving pre-operative systemic therapy for human epidermal growth factor receptor 2 (HER2) amplified breast cancer (BC). In:  Journal of Clinical Oncology. Paper presented at Annual Meeting of the American-Society-of-Clinical-Oncology (ASCO), Electronic Network, May 29-31, 2020. American Society of Clinical Oncology. [BibTeX]
• Matikas, A. , Zerdes, I. , Lovrot, J. , Richard, F. , Sotiriou, C. , Bergh, J. C. S. , Valachis, A. & Foukakis, T. (2019). Prognostic implications of PD-L1 expression in breast cancer at the protein and mRNA levels. In:  Journal of Clinical Oncology. Paper presented at Annual Meeting of the American-Society-of-Clinical-Oncology (ASCO), Chicago, IL, USA, May 31 - June 4, 2019. American Society of Clinical Oncology. [BibTeX]
• Valachis, A. , Carlsson, L. , Sundqvist, M. , Li, B. , Chiesa, F. , Uhde, M. & Sanglier, T. (2019). Use of subcutaneous and intravenous trastuzumab: Real-world experience from three hospitals in Sweden. In:  Cancer Research. Paper presented at San Antonio Breast Cancer Symposium, San Antonio, TX, USA, December 4-8, 2018. American Association for Cancer Research Inc.. [BibTeX]

Doctoral theses, comprehensive summaries

• Valachis, A. (2012). Meta-analysis of randomized clinical evidence of chemotherapy, radiotherapy and endocrine therapy in breast cancer. (Doctoral dissertation). (Comprehensive summary) Kreta, Greece: University of Crete. [BibTeX]