Volume 153, Issue 4 pp. 815-825
CANCER THERAPY AND PREVENTION

Pan-cancer efficacy and safety of anlotinib plus PD-1 inhibitor in refractory solid tumor: A single-arm, open-label, phase II trial

Bao-Dong Qin

Bao-Dong Qin

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Xiao-Dong Jiao

Xiao-Dong Jiao

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Zhan Wang

Zhan Wang

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Ke Liu

Ke Liu

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Ying Wu

Ying Wu

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Yan Ling

Yan Ling

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Shi-Qi Chen

Shi-Qi Chen

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Xue Zhong

Xue Zhong

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Xiao-Peng Duan

Xiao-Peng Duan

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Wen-Xing Qin

Wen-Xing Qin

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

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Lei Xue

Corresponding Author

Lei Xue

Department of Thoracic Surgery, Changzheng Hospital, Naval Medical University, Shanghai, China

Correspondence

Lei Xue, Department of Thoracic Surgery, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai, 200003, China.

Email: [email protected]

Zhen-Hong Guo, National Key Laboratory of Medical Immunology & Institute of Immunology, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China.

Email: [email protected]

Yuan-Sheng Zang, Department of Medical Oncology, Changzheng Hospital, Naval Medical University, 64 Hetian Road, Shanghai, 200072, China.

Email: [email protected]

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Zhen-Hong Guo

Corresponding Author

Zhen-Hong Guo

National Key Laboratory of Medical Immunology & Institute of Immunology, Naval Medical University, Shanghai, China

Correspondence

Lei Xue, Department of Thoracic Surgery, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai, 200003, China.

Email: [email protected]

Zhen-Hong Guo, National Key Laboratory of Medical Immunology & Institute of Immunology, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China.

Email: [email protected]

Yuan-Sheng Zang, Department of Medical Oncology, Changzheng Hospital, Naval Medical University, 64 Hetian Road, Shanghai, 200072, China.

Email: [email protected]

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Yuan-Sheng Zang

Corresponding Author

Yuan-Sheng Zang

Department of Medical Oncology, Changzheng Hospital, Naval Medical University, Shanghai, China

Correspondence

Lei Xue, Department of Thoracic Surgery, Changzheng Hospital, Naval Medical University, 415 Fengyang Road, Shanghai, 200003, China.

Email: [email protected]

Zhen-Hong Guo, National Key Laboratory of Medical Immunology & Institute of Immunology, Naval Medical University, 800 Xiangyin Road, Shanghai, 200433, China.

Email: [email protected]

Yuan-Sheng Zang, Department of Medical Oncology, Changzheng Hospital, Naval Medical University, 64 Hetian Road, Shanghai, 200072, China.

Email: [email protected]

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First published: 08 May 2023
Citations: 1

Bao-Dong Qin and Xiao-Dong Jiao contributed equally to this work.

Abstract

The combination of immunotherapy and antiangiogenic agents for the treatment of refractory solid tumor has not been well investigated. Thus, our study aimed to evaluate the efficacy and safety of a new regimen of anlotinib plus PD-1 inhibitor to treat refractory solid tumor. APICAL-RST is an investigator-initiated, open-label, single-arm, phase II trial in patients with heavily treated, refractory, metastatic solid tumor. Eligible patients experienced disease progression during prior therapy without further effective regimen. All patients received anlotinib and PD-1 inhibitor. The primary endpoints were objective response and disease control rates. The secondary endpoints included the ratio of progression-free survival 2 (PFS2)/PFS1, overall survival (OS) and safety. Forty-one patients were recruited in our study; 9 patients achieved a confirmed partial response and 21 patients had stable disease. Objective response rate and disease control rate were 22.0% and 73.2% in the intention-to-treat cohort, and 24.3% and 81.1% in the efficacy-evaluable cohort, respectively. A total of 63.4% (95% confidence interval [CI]: 46.9%-77.4%) of the patients (26/41) presented PFS2/PFS1 >1.3. The median OS was 16.8 months (range: 8.23-24.4), and the 12- and 36-month OS rates were 62.8% and 28.9%, respectively. No significant association was observed between concomitant mutation and efficacy. Thirty-one (75.6%) patients experienced at least one treatment-related adverse event. The most common adverse events were hypothyroidism, hand-foot syndrome and malaise. This phase II trial showed that anlotinib plus PD-1 inhibitor exhibits favorable efficacy and tolerability in patients with refractory solid tumor.

Graphical Abstract

What's new?

The combination of immunotherapy and antiangiogenic agents for the treatment of refractory solid tumors remains to be further investigated. Here, the authors conducted the prospective, single-arm, nonrandomized, phase II APICAL-RST trial to investigate the efficacy and safety of the oral multikinase inhibitor anlotinib plus PD-1 inhibitor in refractory solid tumors. The regimen demonstrated substantial clinical activity and manageable toxicity among heavily pretreated, pan-cancer patients. The clinical benefits were consistent across different histological or molecular subgroups. The results from the APICAL-RST trial support anlotinib plus PD-1 inhibitor as an effective regimen in heavily-treated, refractory, metastatic solid tumors.

CONFLICT OF INTEREST STATEMENT

All authors declare no conflict of interests.

DATA AVAILABILITY STATEMENT

The data that support the findings of our study are available from the corresponding author upon reasonable request.

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