Checkpoint inhibitors in non-small cell lung carcinoma therapy for progression to the brain (clinical observation)

The development of a new area of antitumor drug therapy, immunotherapy using immune checkpoint inhibitors targeting PD-1/PD-L1, has significantly changed approaches to the treatment of advanced non-small cell lung cancer (NSCLC). Many clinical trials have demonstrated the clinical benefit as well as the long-term effect of these drugs. Currently, the problem of treatment of patients after disease progression against the background of the use of checkpoint inhibitors is relevant. Equally relevant is the issue of choosing the correct and most effective treatment tactics for NSCLC patients with oligoprogression, as well as with abscopal effect. This paper describes a clinical case of a patient with lung adenocarcinoma without driver mutations with PD-L1-positive status, who was treated with nivolumab after second-line chemotherapy for disease progression, and after oligoprogression of the disease into the brain was given stereotactic radiotherapy of metastatic lesion and continued therapy with nivolumab. Partial regression of metastases was achieved with a prolonged effect on the background of continued treatment with nivolumab for 24 months. Tolerability of therapy was satisfactory: no adverse events were observed. The patient retained the result for 1.5 years

Динамика изменения инсулиноподобных факторов роста первого и второго типов в крови больных плоскоклеточным раком полости рта при проведении химиотерапии на фоне таргетной терапии цетуксимабом

Objective. Studying the blood levels of type 1 and 2 insulin-like growth factors in patients with squamous cell carcinoma of the tongue and mouth floor mucosa depending on the therapy effect.Materials and Methods. The study included data from 30 patients with squamous cell carcinoma of the tongue and mouth floor mucosa T3–4N0–1M0 who received chemotherapy cycles together with targeted therapy with cetuximab. Twenty non-cancer donors were examined as well. Depending on the therapy effect, patients were divided into two groups: sensitive and resistant ones.Results. Initial levels of IGF-1 and IGF-2 in the blood serum of patients prior to chemotherapy and targeted therapy with cetuximab were lower than the levels in donors by 53.5 % and 20.3 %, respectively. After chemotherapy and cetuximab therapy, patients with sensitivity to the treatment showed normalization of IGF-1 and its significant increase compared to the initial levels — by 87 %. Levels of IGF-2 were not statistically significantly different from the initial levels and were 32.5 % lower than in donors. The IGF-1 / IGF-2 coefficient was 58 % higher than the initial value.Conclusions. Chemotherapy and cetuximab therapy normalized levels of IGF-1 in patients with sensitivity to the treatment which was demonstrated by an increase in IGF-1 up to the normal blood levels in effective treatment.Цель. Изучение уровня инсулиноподобных факторов роста первого и второго типов в крови пациентов плоскоклеточным раком языка и слизистой оболочки дна полости рта в зависимости от эффективности проводимой терапии.Материал и методы. В исследование включены данные, полученные от 30 больных плоскоклеточным раком языка и слизистой оболочки дна полости рта со степенью распространенностьи опухолевого процесса T3–4N0–1M0, которым проводились курсы химиотерапии на фоне таргетной терапии цетуксимабом. Одновременно было обследовано 20 доноров без онкопатологии. В зависимости от эффективности пациенты были поделены на две подгруппы: с выявленной чувствительностью и резистентностью.Результаты. Установлено, что в сыворотке крови больных до начала курсов химиотерапии и таргетной терапии цетуксимабом уровень двух инсулиноподобных факторов роста IGF-1 и IGF-2 был ниже донорских цифр на 53,5% и 20,3% соответственно. После проведения курсов химиотерапии и цетуксимаба у больных с чувствительностью отмечалась нормализация уровня IGF-1 и значительное его повышение по сравнению с фоновыми значениями — на 87%. Уровень IGF-2 статистически значимо не различался с фоновыми значениями и был на 32,5% ниже донорских. Коэффициент IGF-1/IGF-2 был на 58% выше фоновых значений.Заключение. Показано, что при проведении химиотерапии и цетуксимаба происходит нормализация уровня IGF1 у больных с чувствительностью к лечению, о чем свидетельствует повышение концентрации IGF-1 до уровня нормальных значений в крови при наличии эффекта от проводимого лечения

МОРФОФУНКЦИОНАЛЬНАЯ ХАРАКТЕРИСТИКА ГЕМОПОЭТИЧЕСКОЙ ТКАНИ БОЛЬНЫХ ЛИМФОМАМИ

Parameters of ploidity and kinetics of cell cycle in bone marrow samples of lymphoma patients were studied by flow cytometry. These parameters were compared to the lymphoma prognostic criteria: disease stage, levels of lactate dehydrogenase, sed rate test, B-symptoms, Bcl-2, Ki-67 etc. Analysis of the results shows, that bone marrow lesions in primary tumors are characterized by a statistically significant increase in Bcl2-expressing cells and percentage of cells in G0-1 stage of the cell cycle, as well as decrease in percentage of cells in G2М and S stages and percentage of cells of the proliferative pool S+G2M, (G2M+S) / G0-1 compared to non-affected hematopoietic cells. Primary and recurrent lymphomas with bone marrow lesions are characterized by significant variability in cell cycle parameters describing proliferative activity of mononuclear cells combined with inefficiency of hematopoiesis. Marker cytokinetic parameters can be used as prognostic criteria for overall and relapse-free survival of patients with lymphomas.Методом проточной цитофлюориметрии исследованы параметры плоидности и кинетики клеточного цикла в образцах костного мозга больных лимфомами. Проведено сопоставление данных параметров с известными прогностическими критериями лимфом, такими как: возраст, стадия заболевания, уровень ЛДГ, СОЭ, В-симптомы, Bcl-2, Ki-67 и т. д. Анализ полученных результатов свидетельствует о том, что опухолевое поражение костного мозга при первичном процессе характеризуется статистически значимым увеличением доли клеток, экспрессирующих Bcl2, доли клеток в фазе покоя G0-1, снижением клеток в фазах G2М и S, доли клеток пролиферативного пула S+G2M, (G2M+S) / G0-1 по сравнению с непораженными гемопоэтическими клетками. Для первичных и рецидивных лимфом с поражением костного мозга характерна значительная вариабельность параметров клеточного цикла, характеризующих пролиферативную активность мононуклеаров, что сочетается с неэффективностью кроветворения. Установлены маркерные цитокинетические параметры, которые в комплексе с клинико-гематологическими, цитологическими и другими показателями могут служить прогностическими критериями общей и беспрогрессивной выживаемости больных лимфомами.Цель исследования: Определить значение некоторых иммуноморфологических и биологических факторов в прогрессии лимфом

Резекция органов с метастазами при применении комбинации химиотерапии и анти-EGFR антител у больных нерезектабельным метастатическим раком толстой кишки: проспективное нерандомизированное многоцентровое исследование II фазы

Objective: to analyze the frequency of metastasectomy in general population of patients with RAS wild-type metastatic colorectal cancer who received chemotherapy and anti-EGFR monoclonal antibodiesMaterials and methods. This prospective, non-randomized, multicenter study was designed to evaluate the frequency of resections of organs affected by metastasis. Our statistical hypothesis was that the addition of anti-EGFR antibodies should increase the frequency of metastasectomy from 5% to 15 %. Sample size calculations showed that to obtain a power of 80 % and an alpha level of 0.05 to detect the difference, we would need to recruit 50 patients. The primary endpoint was the frequency of resections of organs affected by metastasis, whereas the secondary endpoints included objective response rate, progression-free survival, and length of live. Tolerability of the therapy was analyzed separately.Results. Eighteen out of50 (36 %) patients achieved objective response; 32 (64 %) patents achieved stable disease and 18 (36 %) patients had disease progression. Radical resection of organs affected by metastasis was performed in 8 out of 50 patients (16 %): 1 individual had lung resection and 7 individuals had liver resection. Among participants with isolated liver lesions, the frequency of metastasectomy was 24 % (6 out of 25 patients). At a median follow-up of 14 months (between 1 and 34 months), median progression-free survival was 8 months (95 % confidence interval 6.2—9.8) and median length of life was 26 months (95 % confidence interval 19.7—32.2). The estimated 2-year overall survival was 83 % in patients who underwent metastasectomy vs. 51 % in those who had no metastasectomy.Conclusions. The addition of anti-EGFR monoclonal antibodies to standard combination chemotherapy (FOLFOX/FOLFIRI) increases the frequency of metastasectomy in patients with non-resectable metastatic colorectal cancer, which results in an increased length of life.Цель исследования — оценка частоты выполнения резекций органов с метастазами при применении химиотерапии и анти-EGFR моноклональных антител в общей популяции больных метастатическим раком толстой кишки с диким типом генов RAS. Материалы и методы. Проведено многоцентровое нерандомизированное проспективное исследование по оценке частоты выполнения резекций органов с метастазами. Статистическая гипотеза предполагала, что добавление анти-EGFR антител должно увеличить частоту метастазэктомий с 5 до 15 %, что при а = 0,05 и мощности 80 % определяет необходимость включения в исследование 50 пациентов. Основной критерий эффективности — частота резекций органов с метастазами. Вторичными критериями эффективности явились частота объективных эффектов, выживаемость без прогрессирования, продолжительность жизни; отдельно оценена переносимость терапии.Результаты. Объективный эффект зарегистрирован у 18 (36 %) из 50 пациентов, контроль болезни — у 32 (64 %) из 50, прогрессирование — у 18 (36 %). Радикальная резекция органов с метастазами выполнена 8 (16 %) из 50 пациентов: у 1 пациента — резекция легких, у 7 — операции на печени. В группе пациентов с изолированным поражением печени частота метастазэктомии составила 24 % (6 из 25 пациентов). При медиане наблюдения 14 мес (от 1 до 34 мес) медиана выживаемости без прогрессирования составила 8мес (95 % доверительный интервал 6,2—9,8), медиана продолжительности жизни — 26мес (95 % доверительный интервал 19,7—32,2). Расчетная 2-летняя общая выживаемость в группе с резекций составила 83 % против 51 % в группе пациентов, которым метастазы не удалялись.Выводы. Добавление анти-EGFR моноклональных антител к стандартным двойным комбинациям химиотерапии (FOLFOX/FOLFIRI) увеличивает частоту выполнения удаления метастазов при нерезектабельном метастатическом раке толстой кишки, что ассоциировано с выраженным увеличением продолжительности жизни пациентов

Эффективность и безопасность эрибулина при различных подтипах рака молочной железы: данные из реальной клинической практики в России

The article presents a pooled experience of the use of eribulin in the real clinical practice of treatment of metastatic breast cancer in Russian oncological institutions. The effectiveness of the drug in monotherapy with HER2‑negative breast cancer was analyzed, groups of patients with most effective use of eribulin were identified depending on the localization of metastases, the most effective lines of therapy. The effectiveness of the drug in combination with trastuzumab in HER2‑positive breast cancer is described, as well as toxic reactions. В статье представлен обобщенный опыт применения эрибулина в реальной клинической практике онкологических учреждений РФ при метастатическом раке молочной железы. Проанализирована эффективность препарата в монотерапии при HER2-отрицательном раке молочных желез, выделены группы больных в зависимости от локализации метастазов, линии терапии, в которых препарат оказался максимально эффективным. Описана эффективность препарата в комбинации с трастузумабом при HER2-положительном раке молочной железы, а также токсические реакции. 

Trastuzumab emtansine of the treatment of HER2-positive breast cancer with brain metatases

Patients with brain metastases of HER2-positive breast cancer (BC) is a special group of patients who are difficult to treat and have a short life expectancy. The possibilities of whole brain radiotherapy, stereotactic radiosurgery and surgery in such patients are rather limited. Trastuzumab emtansine (T-DM1) showed potential activity in this subset of patients. T-DM1 is an antibody-chemical conjugate (ADC) that delivers directly to HER2-positive cancer cells, thereby limiting damage to healthy tissue. At this point, the efficacy of trastuzumab emtansine has been demonstrated in several randomized trials as a second and subsequent lines of therapy for advanced breast cancer with a favorable toxicity profile of the drug. This article describes a clinical case of a patient with luminal B HER-2 positive breast cancer who, underwent stereotactic radiosurgery and was treated with trastuzumab emtansine as a the second line of treatment for disease progression with metastatic brain lesions after trastuzumab/pertuzumab-containing therapy. Partial regression of metastases with long-term duration of the effect was achieved treatment with trastuzumab emtazine has been being continued for 24 months. Tolerability of therapy was good: thrombocytopenia 2 degree was the main among side effects. The effect has been persisted for 2 years and the patient continues the treatment. Discussion of the results of real clinical practice with well-known studies was carried out

Fulvestrant in treatment for metastatic breast cancer

Background. Metastatic breast cancer is still an incurable disease, and is currently regarded as a chronic process requiring longterm treatment with periodic therapy replacements. Hormonal therapy shows its therapeutic efficacy with less toxicity and a better quality of life for patients compared with chemotherapy and is one of the main treatment for patients with luminal subtypes of breast cancer.The purpose of the study was to assess the efficacy and toxicity of fulvestrant in treatment for metastatic breast cancer.Material and methods. The study included patients with metastatic breast cancer with positive hormonal status developing progression after adjuvant treatment or chemotherapy or hormonal therapy due to metastatic cancer, ECOG≤2, with normal liver, kidney and marrow function. Fulvestrant was administered intramuscularly 500 mg once a month with a loading dose 500 mg on day 14 of the first month. The effect was evaluated every 3 months.Results. We analyzed the efficacy and safety of fulvestrant in second-line and over treatment of 20 patients with metastatic breast cancer. Overall response was 65% (13 patients), including partial remission (PR) in 2 (10%) and stabilization in 11 (55%) patients. Progression was found in 7 (35%) patients. The median of relapse-free survival was 6 month. 1-year overall event-free survival was 45%. The median of overall survival was not reached due to the short observation period. 1-year overall survival was 70%. Adverse events in our group of patients included asthenia (80%), hot flushes (25%), headache and nausea (20%).Conclusions. The efficacy of fulvestrant in patients with metastatic breast cancer was high enough and did not depend on the previous treatment, with a favorable toxicity profile

Nab-paclitaxel monotherapy in patients with metastatic breast cancer with visceral crisis: evaluation of efficacy and tolerability in clinical practice

The authors analysed the efficacy and safety of Nab-paclitaxel (Nab-R) monotherapy in patients with metastatic breast cancer with visceral crisis (VC) in the second- and further-line chemotherapy. The objective response rate (ORR) was 35.3% (6 of 17 persons). The most frequent side effects were general weakness, nausea, symptoms of peripheral neuropathy. The degree of toxicity did not exceed 1–2 in 60% of cases. The median time to progression was 7.8 months. (95% CI 6–10.6). The median overall survival for patients with VC was 14.9 months. (95% CI 12.0–16.9). Efficacy and controlled toxicity of Nab-P allows its use in pre-treated patients, including ones with VC

Study of EGFR expression in tumor tissue in patients with locally advanced oral cavity cancer receiving cetuximab therapy

Introduction: Squamous cell carcinoma of the oral cavity is one of the most common head and neck cancers with an aggressive course and high mortality rates. The aim of the study was to determine the EGFR expression levels in tumor tissues in patients with squamous cell carcinoma of the tongue and oral mucosa depending on the efficacy of the therapy. Material and methods: The study included 60 patients with squamous cell carcinoma of the tongue and oral mucosa T3-4N0-1M0. The main group included 30 patients receiving chemotherapy (cisplatin/fluorouracil) in combination with targeted therapy with cetuximab. The control group included 30 patients receiving chemotherapy without cetuximab. Both groups were divided into two subgroups: sensitive and resistant. Results: In treatment-resistant patients of the main group with cetuximab, the average EGFR expression was twice lower than the initial levels (p = 0.0080) and 1.7 times higher than in treatment-resistant patients of the control group (p = 0.0157). In treatment-sensitive patients, the average EGFR expression was 19.8 times lower (p = 0.0020) than initial values and 14.9 times higher (p = 0.0067) than in treatment-sensitive controls. Conclusions: A natural decrease in the EGFR expression in tumor tissues due to the targeted therapy was revealed. However,  some patients were resistant to cetuximab, which dictates the need to search for predictors of targeted therapy efficacy in patients with locally advanced squamous cell carcinoma of the tongue and oral mucosa