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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">clinvest</journal-id><journal-title-group><journal-title xml:lang="ru">Качественная клиническая практика</journal-title><trans-title-group xml:lang="en"><trans-title>Kachestvennaya Klinicheskaya Praktika = Good Clinical Practice</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2588-0519</issn><issn pub-type="epub">2618-8473</issn><publisher><publisher-name>ООО «Издательство ОКИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/2588-0519-2023-3-29-37</article-id><article-id custom-type="elpub" pub-id-type="custom">clinvest-672</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ИССЛЕДОВАНИЯ РЕАЛЬНОЙ КЛИНИЧЕСКОЙ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REAL-WORLD STUDIES</subject></subj-group></article-categories><title-group><article-title>Анализ результатов лечения больных множественной миеломой в условиях реальной клинической практики на примере одного гематологического центра</article-title><trans-title-group xml:lang="en"><trans-title>Real-world assessment of treatment multiple myeloma patients on the example of one hematology center</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5016-210X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лучинин</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Luchinin</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лучинин Александр Сергеевич - к. м. н., с. н. с. отдела организации и сопровождения научных исследований</p><p>Киров</p></bio><bio xml:lang="en"><p>Alexander S. Luchinin - PhD, Cand. Sci. Med., Senior Researcher of the Department of Organization and Support of Scientific Research</p><p>Kirov</p></bio><email xlink:type="simple">glivec@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8479-3217</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Минаева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Minaeva</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минаева Наталья Викторовна - к. м. н.</p><p>Киров</p></bio><bio xml:lang="en"><p>Natalya V. Minaeva - PhD, Cand. Sci. Med</p><p>Kirov</p></bio><email xlink:type="simple">mnvgem@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН «Кировский научно-исследовательский институт гематологии и переливания крови Федерального медико-биологического агентства»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>The Federal State-Financed Scientific Institution Kirov Research Institute of Hematology and Blood Transfusion under the Federal Medical Biological Agency (KRIHBT)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>19</day><month>10</month><year>2023</year></pub-date><volume>0</volume><issue>3</issue><fpage>29</fpage><lpage>37</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лучинин А.С., Минаева Н.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Лучинин А.С., Минаева Н.В.</copyright-holder><copyright-holder xml:lang="en">Luchinin A.S., Minaeva N.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.clinvest.ru/jour/article/view/672">https://www.clinvest.ru/jour/article/view/672</self-uri><abstract><p>Актуальность. Несмотря на значительное улучшение терапевтических возможностей, у больных множественной миеломой (ММ) сохраняется волнообразное течение заболевания с периодами ремиссий и рецидивов, что требует назначение новых линий терапии. Методы. Мы проанализировали виды и результаты лечения, показатели отсева (ПО) — доля выбывших из программной терапии, а также рефрактерность к терапии на разных линиях у 447 пациентов с ММ в период с 2010 по 2022 гг. Результаты. Частота ПО составила 17% между 1-й и 2-й, 15% между 2-й и 3-й и 25% между 3-й и 4-й линиями терапии. Согласно многофакторному регрессионному анализу единственным значимым предиктором, увеличивающим риск отсева пациента по причине прогрессии или смерти, был высокий риск ММ. Частота рефрактерности к бортезомибу, леналидомиду или даратумумабу увеличивается с каждой новой прогрессией ММ. Доля пациентов с двойной рефрактерностью после 1-й, 2-й и 3-й линий терапии составила 6%, 26% и 53% соответственно, с тройной рефрактерностью после 3-й линии терапии — 54%. Наличие рефрактерности к бортезомибу или леналидомиду снижало шансы достижения очень хорошего частичного ответа или выше (ОХЧР+) в 2,6 раза. В целом частота общего ответа и ОХЧР+ уменьшалась с каждой новой линией терапии с 74% и 53% на 1-й линии до 25% и 15% на 4-й линии терапии. Медиана общей выживаемости (ОВ) во всей популяции равнялась 7,6 лет, ожидаемая 5-летняя ОВ — 67%, 10-летняя ОВ — 44%. Медиана выживаемости без прогрессии (ВБП) составила 20 мес. на 1-й линии терапии, 19 мес. на 2-й и 7 мес. на 3-й линии, а ожидаемая 5-летняя ВБП — 25%, 18% и 10% соответственно. Выводы: в связи с этим мы наблюдаем сохраняющуюся тенденцию в использовании цисплатин-содержащих схем химиотерапии «спасения», особенно у пациентов с агрессивным течением, включая экстрамедуллярные формы ММ. Эти пациенты могли бы стать кандидатами для терапии биспецифическими антителами и CAR T-клеточной терапии, но в России эти опции пока не доступны.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. Despite significant improvements in therapeutic options, patients with multiple myeloma (MM) experience a series of remissions and relapses requiring further lines of therapy, which requires the prescription of new lines of therapy. Methods. We analyzed the types and outcomes of treatment, attrition rates (AR) — the proportion of patients who dropped out of program therapy, and refractoriness to different lines of therapy (LOT) in 447 patients with MM between 2010 and 2022. Resalts. The AR was 17% between LOT-1 and LOT-2, 15% between LOT-2 and LOT-3, and 25% between LOT-3 and LOT- 4. In multivariate regression analysis, only high MM risk significantly increased AR risk. Each new progression of MM increased the number of patients with refractory to bortezomib, lenalidomide, or daratumumab. After LOT-1, LOT-2, and LOT-6%, 26%, and 53% of patients were double-refractory, respectively, and 54% were triple-refractory. Bortezomib- or lenalidomide-refractory patients had a 2.6-fold lower chance of achieving a very good partial response or better (VGPR+). From LOT-1 to LOT-4, the overall response rate and VGPR+ decreased from 74% and 53% to 25% and 15%, respectively. Overall survival (OS) in the entire population was 7.6 years, with an actuarial 5-year OS of 67% and a 10-year OS of 44%. The median of progression-free survival (PFS) was 20 months on LOT-1, 19 months on LOT-2, and 7 months on LOT-3, and the actuarial 5-year PFS was 25%, 18%, and 10%, respectively. Conclusions: In this regard, we observe a continuing trend in the use of cisplatin-containing "rescue" chemotherapy regimens, especially in patients with an aggressive course, including extramedullary forms of MM. These patients could be candidates for bispecific antibody therapy and CAR T-cell therapy, but these options are not yet available in Russia.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>множественная миелома</kwd><kwd>общая выживаемость</kwd><kwd>выживаемость без прогрессирования</kwd><kwd>трансплантация аутологичных гемопоэтических стволовых клеток</kwd><kwd>рефрактерность к терапии</kwd><kwd>показатель отсева</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiple myeloma</kwd><kwd>overall survival</kwd><kwd>progression-free survival</kwd><kwd>autologous hematopoietic stem cell transplantation</kwd><kwd>refractoriness to therapy</kwd><kwd>attrition rate</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ludwig H, Novis Durie S, Meckl A, et al. Multiple Myeloma Incidence and Mortality Around the Globe; Interrelations Between Health Access and Quality, Economic Resources, and Patient Empowerment. The Oncologist. 2020;25(9):e1406–e1413. doi: 10.1634/theoncologist.2020-0141.</mixed-citation><mixed-citation xml:lang="en">Ludwig H, Novis Durie S, Meckl A, et al. Multiple Myeloma Incidence and Mortality Around the Globe; Interrelations Between Health Access and Quality, Economic Resources, and Patient Empowerment. The Oncologist. 2020;25(9):e1406–e1413. doi: 10.1634/theoncologist.2020-0141.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Dima D, Ullah F, Mazzoni S, et al. Management of Relapsed-Refractory Multiple Myeloma in the Era of Advanced Therapies: Evidence-Based Recommendations for Routine Clinical Practice. Cancers. 2023;15(7):2160. doi: 10.3390/cancers15072160.</mixed-citation><mixed-citation xml:lang="en">Dima D, Ullah F, Mazzoni S, et al. Management of Relapsed-Refractory Multiple Myeloma in the Era of Advanced Therapies: Evidence-Based Recommendations for Routine Clinical Practice. Cancers. 2023;15(7):2160. doi: 10.3390/cancers15072160.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Dimopoulos MA, Moreau P, Terpos E, et al. Multiple myeloma: EHA-ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up†. Ann Oncol. 2021 Mar;32(3):309-322. doi: 10.1016/j.annonc.2020.11.014.</mixed-citation><mixed-citation xml:lang="en">Dimopoulos MA, Moreau P, Terpos E, et al. Multiple myeloma: EHA-ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up†. Ann Oncol. 2021 Mar;32(3):309-322. doi: 10.1016/j.annonc.2020.11.014.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Rajkumar SV. Multiple myeloma: 2022 update on diagnosis, risk stratification, and management. Am J Hematol. 2022 Aug;97(8):1086-1107. doi: 10.1002/ajh.26590. Epub 2022 May 23.</mixed-citation><mixed-citation xml:lang="en">Rajkumar SV. Multiple myeloma: 2022 update on diagnosis, risk stratification, and management. Am J Hematol. 2022 Aug;97(8):1086-1107. doi: 10.1002/ajh.26590. Epub 2022 May 23.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Hematological Oncology Committee of China Anti-Cancer Association; Chinese Society of Hematology, Chinese Medical Association; Chinese Workshop on Chronic Lymphocytic Leukemia. [Chinese consensus on minimal residual disease detection and interpretation of patients with chronic lymphocytic leukemia (2023)]. Zhonghua Xue Ye Xue Za Zhi. 2023 Mar 14;44(3):182- 187. Chinese. doi: 10.3760/cma.j.issn.0253-2727.2023.03.002.</mixed-citation><mixed-citation xml:lang="en">Hematological Oncology Committee of China Anti-Cancer Association; Chinese Society of Hematology, Chinese Medical Association; Chinese Workshop on Chronic Lymphocytic Leukemia. [Chinese consensus on minimal residual disease detection and interpretation of patients with chronic lymphocytic leukemia (2023)]. Zhonghua Xue Ye Xue Za Zhi. 2023 Mar 14;44(3):182- 187. Chinese. doi: 10.3760/cma.j.issn.0253-2727.2023.03.002.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Mateos MV, Weisel K, De Stefano V, et al. LocoMMotion: a prospective, non-interventional, multinational study of real-life current standards of care in patients with relapsed and/or refractory multiple myeloma. Leukemia. 2022 May;36(5):1371-1376. doi: 10.1038/s41375-022-01531-2.</mixed-citation><mixed-citation xml:lang="en">Mateos MV, Weisel K, De Stefano V, et al. LocoMMotion: a prospective, non-interventional, multinational study of real-life current standards of care in patients with relapsed and/or refractory multiple myeloma. Leukemia. 2022 May;36(5):1371-1376. doi: 10.1038/s41375-022-01531-2.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Thorsteinsdottir S, Dickman PW, Landgren O, et al. Dramatically improved survival in multiple myeloma patients in the recent decade: results from a Swedish population-based study. Haematologica. 2018 Sep;103(9):e412-e415. doi: 10.3324/haematol.2017.183475.</mixed-citation><mixed-citation xml:lang="en">Thorsteinsdottir S, Dickman PW, Landgren O, et al. Dramatically improved survival in multiple myeloma patients in the recent decade: results from a Swedish population-based study. Haematologica. 2018 Sep;103(9):e412-e415. doi: 10.3324/haematol.2017.183475.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Eisfeld C, Kajüter H, Möller L, et al. Time trends in survival and causes of death in multiple myeloma: a population-based study from Germany. BMC Cancer. 2023 Apr 6;23(1):317. doi: 10.1186/s12885-023-10787-5.</mixed-citation><mixed-citation xml:lang="en">Eisfeld C, Kajüter H, Möller L, et al. Time trends in survival and causes of death in multiple myeloma: a population-based study from Germany. BMC Cancer. 2023 Apr 6;23(1):317. doi: 10.1186/s12885-023-10787-5.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Turesson I, Bjorkholm M, Blimark CH, et al. Rapidly changing myeloma epidemiology in the general population: Increased incidence, older patients, and longer survival. Eur J Haematol. 2018 Apr 20:10.1111/ejh.13083. doi: 10.1111/ejh.13083.</mixed-citation><mixed-citation xml:lang="en">Turesson I, Bjorkholm M, Blimark CH, et al. Rapidly changing myeloma epidemiology in the general population: Increased incidence, older patients, and longer survival. Eur J Haematol. 2018 Apr 20:10.1111/ejh.13083. doi: 10.1111/ejh.13083.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Benda MA, Ulmer H, Weger R, et al. Attrition Rates in Multiple Myeloma Treatment under Real World Conditions-An Analysis from the Austrian Myeloma Registry (AMR). Cancers. 2023;15(3):962. doi:10.3390/cancers15030962.</mixed-citation><mixed-citation xml:lang="en">Benda MA, Ulmer H, Weger R, et al. Attrition Rates in Multiple Myeloma Treatment under Real World Conditions-An Analysis from the Austrian Myeloma Registry (AMR). Cancers. 2023;15(3):962. doi:10.3390/cancers15030962.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Rajkumar SV, Dimopoulos MA, Palumbo A, et al. International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma. Lancet Oncol. 2014 Nov;15(12):e538-48. doi: 10.1016/S1470-2045 (14)70442-5.</mixed-citation><mixed-citation xml:lang="en">Rajkumar SV, Dimopoulos MA, Palumbo A, et al. International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma. Lancet Oncol. 2014 Nov;15(12):e538-48. doi: 10.1016/S1470-2045 (14)70442-5.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">McCurdy A, Mian H, LeBlanc R, et al. Redefining attrition in multiple myeloma (MM): a Canadian Myeloma Research Group (CMRG) analysis. Blood Cancer J. 2023 Jul 20;13(1):111. doi: 10.1038/s41408-023-00883-x.</mixed-citation><mixed-citation xml:lang="en">McCurdy A, Mian H, LeBlanc R, et al. Redefining attrition in multiple myeloma (MM): a Canadian Myeloma Research Group (CMRG) analysis. Blood Cancer J. 2023 Jul 20;13(1):111. doi: 10.1038/s41408-023-00883-x.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Morè S, Corvatta L, Manieri MV, et al. Real-world assessment of treatment patterns and outcomes in patients with relapsed-refractory multiple myeloma in an Italian haematological tertiary care centre. Br J Haematol. 2023 May;201(3):432-442. doi: 10.1111/bjh.18658.</mixed-citation><mixed-citation xml:lang="en">Morè S, Corvatta L, Manieri MV, et al. Real-world assessment of treatment patterns and outcomes in patients with relapsed-refractory multiple myeloma in an Italian haematological tertiary care centre. Br J Haematol. 2023 May;201(3):432-442. doi: 10.1111/bjh.18658.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Moore KLF, Turesson I, Genell A, et al. Improved survival in myeloma patients-a nationwide registry study of 4,647 patients ≥75 years treated in Denmark and Sweden. Haematologica. 2023 Jun 1;108(6):1640-1651. doi: 10.3324/haematol.2021.280424.</mixed-citation><mixed-citation xml:lang="en">Moore KLF, Turesson I, Genell A, et al. Improved survival in myeloma patients-a nationwide registry study of 4,647 patients ≥75 years treated in Denmark and Sweden. Haematologica. 2023 Jun 1;108(6):1640-1651. doi: 10.3324/haematol.2021.280424.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Lopez-Muñoz N, Hernández-Ibarburu G, Alonso R, et al. Large-scale real- life analysis of survival and usage of therapies in multiple myeloma. J Hematol Oncol. 2023 Jul 19;16(1):76. doi: 10.1186/s13045-023-01474-w. Erratum in: J Hematol Oncol. 2023 Jul 25;16(1):81.</mixed-citation><mixed-citation xml:lang="en">Lopez-Muñoz N, Hernández-Ibarburu G, Alonso R, et al. Large-scale real- life analysis of survival and usage of therapies in multiple myeloma. J Hematol Oncol. 2023 Jul 19;16(1):76. doi: 10.1186/s13045-023-01474-w. Erratum in: J Hematol Oncol. 2023 Jul 25;16(1):81.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Mohty M, Knauf W, Romanus D, et al. Real-world treatment patterns and outcomes in non-transplant newly diagnosed multiple Myeloma in France, Germany, Italy, and the United Kingdom. Eur J Haematol. 2020 Sep;105(3):308- 325. doi: 10.1111/ejh.13439.</mixed-citation><mixed-citation xml:lang="en">Mohty M, Knauf W, Romanus D, et al. Real-world treatment patterns and outcomes in non-transplant newly diagnosed multiple Myeloma in France, Germany, Italy, and the United Kingdom. Eur J Haematol. 2020 Sep;105(3):308- 325. doi: 10.1111/ejh.13439.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Weisel K, Wadlund AO, Gungor G, et al. Real-world study on adoption of standard-of-care for transplant-eligible newly diagnosed multiple myeloma patients between 2017 and 2020/2021 across France, Germany, Spain, and Italy. Eur J Haematol. 2022 Oct;109(4):388-397. doi: 10.1111/ejh.13821.</mixed-citation><mixed-citation xml:lang="en">Weisel K, Wadlund AO, Gungor G, et al. Real-world study on adoption of standard-of-care for transplant-eligible newly diagnosed multiple myeloma patients between 2017 and 2020/2021 across France, Germany, Spain, and Italy. Eur J Haematol. 2022 Oct;109(4):388-397. doi: 10.1111/ejh.13821.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Есенина ТВ, Федорова НА, Мишкурова КМ, и др. Лечение множественной миеломы в реальной клинической практике. Амурский медицинский журнал. 2017;18(2):33-36. [Yesenina TV, Fedorova NA, Mishkurova KM, et al. Treatment of multiple myeloma in real clinical practice. Amur Medical Journal. 2017;18(2):33-36. (In Russ.)]. doi: 10.22448/AMJ.2017.2.33-36.</mixed-citation><mixed-citation xml:lang="en">Есенина ТВ, Федорова НА, Мишкурова КМ, и др. Лечение множественной миеломы в реальной клинической практике. Амурский медицинский журнал. 2017;18(2):33-36. [Yesenina TV, Fedorova NA, Mishkurova KM, et al. Treatment of multiple myeloma in real clinical practice. Amur Medical Journal. 2017;18(2):33-36. (In Russ.)]. doi: 10.22448/AMJ.2017.2.33-36.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Птушкин В.В., Кунст М.А., Митина Т.А., и др. Множественная миелома: ответ на лечение и выживаемость пациентов по данным промежуточного анализа российского наблюдательного ретроспективно-проспективного многоцентрового когортного исследования (MULTISPECT). Терапевтический архив. 2022;94(7):827-835. [Ptushkin VV, Kunst MA, Mitina TA, et al. Multiple myeloma: response to treatment and survival of patients according to the interim analysis of the Russian observational, retrospective-prospective, multicenter cohort study (MULTISPECT). Terapevticheskii Arkhiv (Ter. Arkh.). 2022;94(7):827-835. (In Russ.)]. doi: 10.26442/00403660.2022.07.201718.</mixed-citation><mixed-citation xml:lang="en">Птушкин В.В., Кунст М.А., Митина Т.А., и др. Множественная миелома: ответ на лечение и выживаемость пациентов по данным промежуточного анализа российского наблюдательного ретроспективно-проспективного многоцентрового когортного исследования (MULTISPECT). Терапевтический архив. 2022;94(7):827-835. [Ptushkin VV, Kunst MA, Mitina TA, et al. Multiple myeloma: response to treatment and survival of patients according to the interim analysis of the Russian observational, retrospective-prospective, multicenter cohort study (MULTISPECT). Terapevticheskii Arkhiv (Ter. Arkh.). 2022;94(7):827-835. (In Russ.)]. doi: 10.26442/00403660.2022.07.201718.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Fonseca R, Usmani SZ, Mehra M, et al. Frontline treatment patterns and attrition rates by subsequent lines of therapy in patients with newly diagnosed multiple myeloma. BMC Cancer. 2020 Nov 10;20(1):1087. doi: 10.1186/s12885-020-07503-y.</mixed-citation><mixed-citation xml:lang="en">Fonseca R, Usmani SZ, Mehra M, et al. Frontline treatment patterns and attrition rates by subsequent lines of therapy in patients with newly diagnosed multiple myeloma. BMC Cancer. 2020 Nov 10;20(1):1087. doi: 10.1186/s12885-020-07503-y.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Yadav K, Lewis RJ. Immortal Time Bias in Observational Studies. JAMA. 2021 Feb 16;325(7):686-687. doi: 10.1001/jama.2020.9151</mixed-citation><mixed-citation xml:lang="en">Yadav K, Lewis RJ. Immortal Time Bias in Observational Studies. JAMA. 2021 Feb 16;325(7):686-687. doi: 10.1001/jama.2020.9151</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
