A Single-arm, Multicenter Clinical Study of Becotatug Vedotin Combined With Zimberelimab in the Treatment of Recurrent and Metastatic Cervical Cancer, Vulvar Cancer and Vaginal Cancer

Обзор

This is a prospective, multicenter, single-arm clinical trial investigating Becotatug Vedotin in combination with Zimberelimab for the treatment of patients with recurrent and metastatic cervical cancer, vulvar cancer, and vaginal cancer. A total of 30 patients are expected to be enrolled. The study consists of a screening period (within 28 days), a treatment period, and a follow-up period (safety follow-up and survival follow-up). Trial treatment will continue until the patient has received Becotatug Vedotin for 1 year, or until disease progression, unacceptable toxicity, withdrawal of informed consent, or death, whichever occurs first. Subjects will sign the informed consent form and undergo baseline examinations during the screening period. Patients who meet the inclusion and exclusion criteria will enter the treatment period. All subjects will complete the relevant examinations specified in the protocol during treatment to observe safety, tolerability, and efficacy.

Подробное описание

Recurrent and metastatic cervical, vulvar, and vaginal cancers represent a significant clinical challenge, with limited treatment options and poor prognosis for patients who have failed standard therapies. These malignancies are often driven by persistent human papillomavirus (HPV) infection, leading to immunosuppression and tumor immune evasion. While immune checkpoint inhibitors, such as anti-PD-1 antibodies, have shown some efficacy, response rates remain suboptimal, highlighting the need for more effective combination strategies.

Becotatug vedotin is an antibody-drug conjugate (ADC) that selectively delivers a potent cytotoxic payload to tumor cells expressing specific antigens, thereby inducing targeted cell death. Zimberelimab is a monoclonal antibody targeting the PD-1 checkpoint receptor, which functions to reactivate the body's immune system to recognize and attack cancer cells. The combination of these two agents is hypothesized to exert a synergistic anti-tumor effect, by directly eliminating tumor cells while simultaneously overcoming immunosuppression in the tumor microenvironment.

This trial will evaluate the safety, tolerability, and preliminary efficacy of this novel combination regimen.

Вмешательства

• Препарат Becotatug Vedotin in combination with Zimberelimab
  Vebicoratamab 2.0 mg/kg, administered intravenously on Day 1 of each cycle Sintilimab 240 mg, administered intravenously on Day 1 of each cycle Each treatment cycle is 3 weeks.

Первичные конечные точки

• The objective response rate of the treatment [Срок оценки: Up to approximately 36 months]

Вторичные конечные точки (3)

• duration of response [Срок оценки: Up to approximately 36 months]
• progression free survival [Срок оценки: Up to approximately 36 months]
• Overall Survival [Срок оценки: Up to approximately 36 months]

Критерии участия

Критерии включения

A subject must meet all of the following criteria to be eligible for enrollment:

• The subject has a full understanding of the study, voluntarily agrees to participate, and signs the Informed Consent Form (ICF).
• Female, aged 18 to 75 years (inclusive).
• Life expectancy ≥ 3 months, as assessed by the investigator.
• Histologically confirmed squamous cell carcinoma of the cervix, vagina, or vulva.
• Have received at least one line of standard therapy, which must have included platinum-based chemotherapy and an immunotherapy agent; prior lines of therapy ≤ 4.
• ECOG performance status of 0 or 1.
• Presence of at least one measurable target lesion according to the RECIST 1.1 criteria.
• Adequate bone marrow function: absolute neutrophil count ≥ 1.5 × 10⁹/L, platelets ≥ 90 × 10⁹/L, hemoglobin ≥ 90 g/L.
• Adequate hepatic and renal function: serum creatinine ≤ 1.5 × upper limit of normal (ULN); AST and ALT ≤ 2.5 × ULN (≤ 5 × ULN for subjects with liver metastases); total bilirubin ≤ 1.5 × ULN (≤ 3 × ULN for subjects with liver metastases).
• Not pregnant or breastfeeding. Women of childbearing potential must have a negative serum pregnancy test within 28 days prior to enrollment and agree to use an appropriate method of contraception from the time of signing the ICF until 6 months after the last study drug administration.
• Agrees to provide blood and histology samples.

Критерии исключения

A subject will be ineligible for study enrollment if they meet any of the following criteria:

• Known hypersensitivity or allergic reaction to any study drug or its components.
• Use of a strong CYP3A4 inducer (e.g., anticonvulsants \[phenytoin, phenobarbital, carbamazepine\], rifampicin, rifabutin, St. John's Wort) within 2 weeks prior to the first dose of study medication; or use of a strong CYP3A4 inhibitor (e.g., grapefruit juice, clarithromycin, indinavir, itraconazole, lopinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telaprevir, voriconazole) or a strong UGT1A1 inhibitor (e.g., atazanavir, gemfibrozil, indinavir) within 1 week prior to the first dose.
• Known central nervous system (CNS) metastases, meningeal metastases, spinal cord metastases or spinal cord compression.
• Currently having uncontrolled systemic diseases (e.g., progressive infection, uncontrolled hypertension, diabetes mellitus, etc.), or psychiatric disorders/social conditions that would limit the subject's ability to comply with study requirements or provide written informed consent.
• Radiologically confirmed intestinal obstruction; or a medical history of the following diseases: inflammatory bowel disease, extensive bowel resection (partial colectomy or extensive small bowel resection complicated by chronic diarrhea), Crohn's disease, ulcerative colitis.
• Active hepatitis B or hepatitis C infection (hepatitis B surface antigen positive with hepatitis B virus DNA > 1 × 10³ copies/mL; hepatitis C virus RNA > 1 × 10³ copies/mL).
• Human immunodeficiency virus (HIV) infection (positive HIV antibody test).
• Major surgery or severe trauma within 30 days prior to the first dose, or planned major surgery within 30 days after the first dose (as determined by the investigator).
• Pregnant or breastfeeding women; or women of childbearing potential who refuse to adopt effective contraceptive measures.
• Any other condition deemed unsuitable for study participation by the investigator.

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

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Не применимо

Модель

Одна группа

Маскирование

Открытое

Основная цель

Лечение

Центры проведения

Китай · 1 центр

• Union Hospital, Huazhong University of Science and Technology — Ухань

Публикации

• Fu Z, Li S, Han S, Shi C, Zhang Y. Antibody drug conjugate: the "biological missile" for targeted cancer therapy. Signal Transduct Target Ther. 2022 Mar 22;7(1):93. doi: 10.1038/s41392-022-00947-7. PMID 35318309
• Xia L, Wang J, Wang C, Zhang Q, Zhu J, Rao Q, Cheng H, Liu Z, Yin Y, Ai X, Gulina K, Zheng H, Luo X, Chang B, Li L, Liu H, Li Y, Lou G, Zhou Q, Zhu Y, Xiao Z, Tong J, Wang K, Chen J, Wang X, Song L, Wei Z, Ye Y, Zhu J, Wu X. Efficacy and safety of zimberelimab (GLS-010) monotherapy in patients with recurrent or metastatic cervical cancer: a multicenter, single-arm, phase II study. Int J Gynecol Ca PMID 37875323
• Lou B, Wei H, Yang F, Wang S, Yang B, Zheng Y, Zhu J, Yan S. Preclinical Characterization of GLS-010 (Zimberelimab), a Novel Fully Human Anti-PD-1 Therapeutic Monoclonal Antibody for Cancer. Front Oncol. 2021 Sep 15;11:736955. doi: 10.3389/fonc.2021.736955. eCollection 2021. PMID 34604074
• Schilder RJ, Blessing J, Cohn DE. Evaluation of gemcitabine in previously treated patients with non-squamous cell carcinoma of the cervix: a phase II study of the Gynecologic Oncology Group. Gynecol Oncol. 2005 Jan;96(1):103-7. doi: 10.1016/j.ygyno.2004.09.027. PMID 15589587
• Alberts DS, Blessing JA, Landrum LM, Warshal DP, Martin LP, Rose SL, Bonebrake AJ, Ramondetta LM. Phase II trial of nab-paclitaxel in the treatment of recurrent or persistent advanced cervix cancer: A gynecologic oncology group study. Gynecol Oncol. 2012 Dec;127(3):451-5. doi: 10.1016/j.ygyno.2012.09.008. Epub 2012 Sep 14. PMID 22986144
• Huang L, We Y, Chen F. Cadonilimab in advanced cervical cancer: the COMPASSION-16 trial. Lancet. 2025 Aug 2;406(10502):445-446. doi: 10.1016/S0140-6736(25)01226-7. No abstract available. PMID 40752905
• Monk BJ, Colombo N, Tewari KS, Dubot C, Caceres MV, Hasegawa K, Shapira-Frommer R, Salman P, Yanez E, Gumus M, Olivera Hurtado de Mendoza M, Samouelian V, Castonguay V, Arkhipov A, Tekin C, Li K, Keefe SM, Lorusso D; KEYNOTE-826 Investigators. First-Line Pembrolizumab + Chemotherapy Versus Placebo + Chemotherapy for Persistent, Recurrent, or Metastatic Cervical Cancer: Final Overall Survival Resul PMID 37910822
• Tewari KS, Sill MW, Long HJ 3rd, Penson RT, Huang H, Ramondetta LM, Landrum LM, Oaknin A, Reid TJ, Leitao MM, Michael HE, Monk BJ. Improved survival with bevacizumab in advanced cervical cancer. N Engl J Med. 2014 Feb 20;370(8):734-43. doi: 10.1056/NEJMoa1309748. PMID 24552320

Идентификаторы

NCT: NCT07424664 · WB-PT-Cerv-Union01

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

Открыть это исследование на ClinicalTrials.gov ↗