• Трастузумаб – это гуманизированные моноклональные антитела IgG1, которые избирательно связываются с рецептором эпидермального фактора роста человека типа 2 (HER2), ингибируя пролиферацию и выживание клеток в HER2-зависимых опухолях.
• В рандомизированном исследовании III фазы у больных метастатическим раком молочной железы (РМЖ), положительном по HER2-рецепторам и гормональным рецепторам, в постменопаузе медиана выживаемости без прогрессирования (основной критерий эффективности) была значительно выше у больных, получавших трастузумаб внутривенно в комбинации с анастрозолом перорально, чем у больных, получавших только анастрозол перорально.
• Частота общего ответа, показатель контроля заболевания и медиана времени до прогрессирования заболевания также были значительно выше в группе комбинации трастузумаб + анастрозол, чем в группе анастрозола.
• В рандомизированном исследовании III фазы не сообщалось о новых или неожиданных нежелательных явлениях комбинированной терапии трастузумабом и анастрозолом.
• В исследовании II фазы без группы сравнения комбинации трастузумаб + летрозол у пациенток с метастатическим РМЖ, положительным по HER2-рецепторам и гормональным рецепторам, в постменопаузе большинство нежелательных явлений было легким или средней степени тяжести.
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