Multicenter prospective observational post-approval study of safety and efficacy of bevacizumab (Avegra®, BIOCAD) in patients with metastatic colorectal cancer in real world practice: APOLLON-11 and SOYUZ-APOLLON

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Abstract

Aim. To evaluate the safety and efficacy of long-term continuous use of Avegra® BIOCAD (international nonproprietary name – INN: bevacizumab) as a targeted therapy in patients with metastatic colorectal cancer in real-world practice.

Materials and methods. The paper presents the interim results of a multicenter prospective observational post-approval study of the safety and efficacy of Avegra® BIOCAD (INN: bevacizumab) combined with chemotherapy in patients with metastatic colorectal cancer. Inclusion criteria: histology verified diagnosis of metastatic colorectal cancer; therapy with bevacizumab (by JSC BIOCAD, Russia) to all patients included in the study, as part of real-world clinical practice, at a dose of 5 mg/kg every 2 weeks or 7.5 mg/kg every 3 weeks in combination with standard cytotoxic regimens (FOLFOX 6, XELOX, etc.). The main safety criteria are the incidence of adverse reactions to bevacizumab and the rate of treatment withdrawal due to the development of adverse reactions to bevacizumab. Additional criteria are objective response rate (complete and partial response to therapy), disease control rate (ORR and stable disease), and rate of disease progression.

Results. At the time of the interim analysis, 441 patients with metastatic colorectal cancer in 28 research centers of the Russian Federation (Moscow, Saint Petersburg and regional clinics) were included in the study. Median age of patients is 62 (28–87) years. Patients had an ECOG performance status of 0–1, with a median follow-up of 7.3 months. After the therapy, the disease control rate was 79.5%. The median PFS was 8 months (95% CI 7.04 to 9.00). The median OS was not reached. Toxicity associated with bevacizumab manifested predominantly as arterial hypertension (3%), diarrhea (1,1%) and asthenia (0.9%). Nine (2.1%) SARs were observed; three (0.6%) of them (COVID-19, intestinal obstruction, multiple organ failure) resulted in mortality. The obtained results are well consistent with the previously known bevacizumab safety profile characteristics.

Conclusion. The interim analysis results confirm the favorable safety profile and high efficacy of Avegra® BIOCAD (INN: bevacizumab) combined with standard cytotoxic regimens (FOLFOX, XELOX, etc.) as first-line therapy in patients with metastatic colorectal cancer. The real-world data for ORR and PFS are comparable with clinical trials results. At the time of the interim analysis publication, the study is ongoing. Final conclusions on the safety and efficacy of bevacizumab (by JSC BIOCAD, Russia), will be made after the study is completed.

About the authors

Alexey A. Tryakin

Blokhin National Medical Research Center of Oncology

Author for correspondence.
Email: atryakin@mail.ru
ORCID iD: 0000-0003-2245-214X

D. Sci. (Med.)

Russian Federation, Moscow

Mikhail Yu. Fedyanin

Blokhin National Medical Research Center of Oncology

Email: fedianinmu@mail.ru
ORCID iD: 0000-0001-5615-7806

D. Sci. (Med.)

Russian Federation, Moscow

Fedor V. Moiseenko

Saint Petersburg Clinical Research and Practical Center for Specialized Types of Medical Care (Oncology); Petrov National Medicine Research Center of Oncology

Email: moiseenkofv@gmail.com
ORCID iD: 0000-0003-2544-9042

D. Sci. (Med.)

Russian Federation, Saint Petersburg

Oleg V. Mironov

Tambov Regional Oncological Clinical Dispensary

Email: fedianinmu@mail.ru

Department Head

Russian Federation, Tambov

Daniil L. Stroyakovskiy

Moscow City Oncology Hospital №62

Email: d.stroiakovski@icloud.com
ORCID iD: 0000-0003-1973-1092

Cand. Sci. (Med.)

Russian Federation, Moscow

Nikolai Iu. Sokolov

Botkin Hospital

Email: atryakin@mail.ru

Cand. Sci. (Med.)

Russian Federation, Moscow

Svetlana A. Orlova

Republican Clinical Oncological Dispensary

Email: lana.orlova_84@mail.ru

Department Head

Russian Federation, Cheboksary

Evgenii O. Mantsyrev

Chelyabinsk Regional Clinical Center of Oncology and Nuclear Medicine

Email: atryakin@mail.ru

Cand. Sci. (Med.)

Russian Federation, Chelyabinsk

Alexander V. Sultanbaev

Regional Oncological Clinical Dispensary

Email: rkodrb@yandex.ru
ORCID iD: 0000-0003-0996-5995

Cand. Sci. (Med.)

Russian Federation, Ufa

Antonina A. Teterich

Belgorod Oncological Dispensary

Email: atryakin@mail.ru

Department Head

Russian Federation, Belgorod

Kseniia G. Babina

Volgograd Regional Clinical Oncological Dispensary

Email: atryakin@mail.ru

Department Head

Russian Federation, Volgograd

Denis Yu. Yukalchuk

Regional Oncological Dispensary

Email: atryakin@mail.ru

oncologist

Russian Federation, Angarsk

Stanislav M. Borzyanitsa

Rappoport Kuzbass Clinical Oncological Dispensary

Email: atryakin@mail.ru

oncologist

Russian Federation, Kemerovo

Alina Z. Isyangulova

Republican Clinical Oncological Dispensary

Email: atryakin@mail.ru

oncologist, chemotherapist

Russian Federation, Kazan

Aleksandra F. Saidullaeva

Tver Regional Clinical Oncological Dispensary

Email: atryakin@mail.ru

oncologist

Russian Federation, Tver

Yuliia A. Chernova

Tomsk Regional Oncological Dispensary

Email: atryakin@mail.ru

oncologist

Russian Federation, Tomsk

Elvira A. Bobrova

Loginov Moscow Clinical Scientific Center

Email: bobrovaelvira@yandex.ru

oncologist

Russian Federation, Moscow

Natalia V. Fadeeva

Chelyabinsk Regional Clinical Center of Oncology and Nuclear Medicine

Email: 89048082445@mail.ru

Cand. Sci. (Med.)

Russian Federation, Chelyabinsk

Dmitrii Yu. Chobanu

JSC "BIOCAD"

Email: atryakin@mail.ru

Medical Advisor

Russian Federation, Saint Petersburg

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