RC48-ADC in Adjuvant/Salvage Treatment of HER2 Positive Non-muscle-invasive Bladder Cancer

Официальное название

A Multicenter Phase II Study of RC48-ADC in Adjuvant/Salvage Treatment of HER2 Positive High-risk Non-muscle-invasive Bladder Cancer

Обзор

This study will evaluate the efficacy and safety of intravenous RC48-ADC in adjuvant/salvage treatment of HER2 positive high-risk non-muscle-invasive bladder cancer.

Подробное описание

This study is a multicenter phase II study, which aims to evaluate the efficacy and safety of intravenous RC48-ADC in adjuvant/salvage treatment of HER2 positive high-risk non-muscle-invasive bladder cancer.

Вмешательства

• Препарат RC48-ADC
  Patients are treated with RC48-ADC at 2.0 mg/kg as an intravenous infusion over 30-90 minutes (60 minutes is recommended) once every 2 weeks for 12 weeks.

Первичные конечные точки

• 12-month recurence-free survival rate [Срок оценки: From treatment initiation to 12 month]
• 3-month pathological complete response rate [Срок оценки: From treatment initiation to 3 month]
• Adverse events [Срок оценки: From patient screening to 30 days after end of cycle 6]

Вторичные конечные точки (6)

• 6-month recurence-free survival rate [Срок оценки: From treatment initiation to 6 month]
• Duration of response [Срок оценки: From time of complete response to up to 60 months]
• Recurrence-free survival [Срок оценки: From time of first dose of RC48-ADC adjuvant treatment to up to 60 months]
• Progression-free survival [Срок оценки: From time of first dose of RC48-ADC treatment to up to 60 months]
• Overall survival [Срок оценки: From time of first dose of RC48-ADC treatment to up to 60 months]
• Quality of life assessed by EQ-5D scale [Срок оценки: After every cycle of treatment and 30 days after end of cycle 6]

Критерии участия

Критерии включения

• Be willing and able to provide written informed consent/assent for the trial.
• Life expectancy ≥12 weeks.
• Have a histologically-confirmed diagnosis of high-risk non-muscle-invasive (according to 2023 NCCN guidelines for bladder cancer) transitional cell carcinoma of the bladder. Subjects with tumors of mixed transitional/non-transitional cell histology are allowed, but transitional cell carcinoma must be the predominant histology.
• Have been treated with adequate BCG therapy and failed (according to 2023 EAU guidelines for NMIBC, for salvage treatment arm).
• Have elected not to undergo, or are considered ineligible for radical cystectomy, as determined by the treating surgeon.
• Have tumor tissues for HER2 IHC evaluation and have a HER2 expression score of HER2 2+ or HER2 3+ reviewed by an independent pathologist at the central laboratory.
• Have a performance status of 0, 1 or 2 on the Eastern Cooperative Oncology Group (ECOG) Performance Scale.
• Demonstrate adequate organ function.
• Female subjects of childbearing potential must have a negative urine or serum pregnancy test within 7 days prior to receiving the first dose of study medication.
• Male subjects of childbearing potential (Section 5.7.2) must agree to use an adequate method of contraception starting with the first dose of study therapy through 6 months after the last dose of study therapy.

Критерии исключения

• Has muscle-invasive (i.e. T2, T3, T4) locally advanced non-resectable or metastatic urothelial carcinoma.
• Has concurrent extra-vesical (i.e. urethra, ureter or renal pelvis) non-muscle invasive transitional cell carcinoma of the urothelium.
• Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment.
• Has undergone any intervening intravesical chemotherapy or immunotherapy from the time of most recent cystoscopy/TURBT to starting trial treatment. (Note: A single dose of intravesical treatment given as part of the most recent cystoscopy/TURBT, during the screening period, such as with chemotherapy as per local / regional practices, is acceptable.).
• Allergic to study therapy.
• Has a known additional malignancy that has had progression or has required active treatment in the last five years.
• Has an active autoimmune disease that has required systemic treatment in past 2 years.
• Have diseases that may interfere with the study treatment or severe and uncontrolled concomitant diseases.
• Has had an allogeneic tissue/solid organ transplant.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Нерандомизированное

Модель

Параллельные группы

Маскирование

Открытое

Основная цель

Лечение

Центры проведения

Китай · 1 центр

• West China Hospital — Чэнду

Идентификаторы

NCT: NCT05996952 · 2023(24)

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

Открыть это исследование на ClinicalTrials.gov ↗