Continuous infusion of Endostar combined with chemotherapy in patients with advanced or recurrent mucosal melanoma: A real-world cohort study.

Author:

Liu Xin1,Jiang Shiyu1,Zhang Xiaowei1,Jin Feng2,Cao Jun3,Meng Yanchun1,Xu Yu1,Wang Chunmeng1,Chen Yong1,Yang Huijuan4,Kong Yunyi1,Luo Zhiguo3,Hu Xichun5

Affiliation:

1. Fudan University Shanghai Cancer Center, Shanghai, China;

2. 900 Hospital of the Joint Logistics Support Force, Fuzhou, China;

3. Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China;

4. Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Shanghai, China;

5. Department of Medical Oncology, Fudan University Cancer Hospital, Shanghai, China;

Abstract

e21517 Background: Mucosal melanoma is rare and has distinct clinical and genetic features. Even with advances in targeted and immune therapy, the survival of patients with advanced or recurrent mucosal melanomas remains poor. The standard treatment remains controversial and we conducted this real-world study aimed to test continuous intravenous Endostar infusion plus chemotherapy in patients with advanced or recurrent mucosal melanoma in the first-line setting. Methods: In total, all 43 patients with advanced or recurrent mucosal melanoma treated at Fudan University Shanghai Cancer Center between April 2017 and August 2020 were retrospectively included. Patients received dacarbazine plus cisplatin or temozolomide plus cisplatin regimens per the investigators’ preference. Endostar (105 mg/m2) was administered with continuous infusion for 168 hours (Civ 168h). Results: Of the 43 patients, 72.1% had metastatic disease, and 27.9% had locally advanced disease. The most common primary site was the gastrointestinal tract (51.2%), followed by the sinonasal tract (32.6%) and genitourinary tract (14.0%). The most commonly observed mutation was NRAS (23.1%), followed by BRAF (7.7%) and CKIT (5.1%). An objective response was observed in 12 (30.0%) of the 40 evaluable patients, and disease control was achieved in 31 (77.5%) patients. With a median follow-up of 17.6 months, the median progression-free survival (PFS) and overall survival (OS) were 4.9 and 15.3 months, respectively. Multivariate analysis indicated a high lymphocyte-to-monocyte ratio (LMR) was significantly correlated with favorable PFS (p = 0.012, hazard ratio [HR] 0.28, 95% CI: 0.10-0.76). Additionally, a high LMR (p = 0.023, HR 0.29, 95% CI: 0.10-0.84) and BRAF/KIT/RAS mutation (p = 0.028, HR 0.24, 95% CI: 0.07-0.86) were independently correlated with prolonged OS. Toxicity was manageable overall. Conclusions: Continuous Endostar infusion in combination with chemotherapy was effective and safe for the treatment of advanced or recurrent mucosal melanoma. Additionally, a high LMR was correlated with favorable PFS and OS in this patient population.

Funder

None

Publisher

American Society of Clinical Oncology (ASCO)

Subject

Cancer Research,Oncology

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