Intermediate results of the PERFECTION observational study in a population of patients with metastatic, persistent and recurrent cervical cancer
- Authors: Saevets V.V.1,2, Kuzmin N.K.1, Ponomareva N.A.3, Krashikhina T.V.4, Mochalova A.S.5, Vasilyev L.A.6, Stroyakovsky D.L.7, Kolomiets L.A.8, Averyanova S.V.9, Yavorskaya M.A.10, Orlova S.A.11, Boskhomjieva M.V.12, Peganova E.V.13, Shalina A.I.13, Kosukhina A.A.14, Khaikin A.M.15, Shkradyuk A.V.16, Bobrova E.A.17, Dikhtyar T.N.18, Shikina V.E.19, Sultanbaev A.V.11,20, Kudryavtsev I.Y.21,22, Zinkina-Orikhan A.V.23, Fogt S.N.23, Kiseleva P.V.23, Svechnikov E.V.23
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Affiliations:
- Chelyabinsk Regional Clinical Center of Oncology and Nuclear Medicine
- South Ural State Medical University
- Ivanovo Regional Oncology Dispensary
- Moscow Center for Restorative Treatment
- Medsi Group
- Modern Medical Technologies JSC
- Moscow City Oncology Hospital No. 62
- Cancer Research Institute – a branch of the Tomsk National Research Medical Center of the Russian Academy of Sciences
- Regional Clinical Oncology Dispensary
- Oncology Dispensary No. 2
- Republican Clinical Oncology Dispensary
- Timoshkaeva Republican Oncology Dispensary
- Clinical Oncology Hospital
- Belgorod Regional Oncology Dispensary
- Smolensk Regional Clinical Hospital
- Efetov Crimean Republican Oncologic Clinical Dispensary
- Loginov Moscow Clinical Scientific Center
- Primorsky Regional Oncology Dispensary
- Vladimirsky Moscow Regional Research Clinical Institute
- Bashkir State Medical University
- Kaluga Regional Clinical Oncology Dispensary
- Tsiolkovsky Kaluga State University
- BIOCAD JSC
- Issue: Vol 27, No 2 (2025)
- Pages: 65-71
- Section: Articles
- URL: https://journals.rcsi.science/1815-1434/article/view/313822
- DOI: https://doi.org/10.26442/18151434.2025.2.203329
- ID: 313822
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Abstract
Background. Cervical cancer (CC) is among the four most common malignancies among the female population. For a long time, platinum-based chemotherapy was the standard of care and practically the only option available. However, treatment outcomes for patients with metastatic and recurrent CC remained poor. The use of immune checkpoint inhibitors significantly increased progression-free survival and overall survival in this group of patients. Currently, pembrolizumab is a priority option in treating patients with metastatic, persistent, recurrent CC with CPS ≥ 1 and is included in international and Russian clinical guidelines.
Aim. To evaluate the efficacy and safety of a pembrolizumab biosimilar (Pembroria®) in patients with metastatic, persistent and recurrent CC in the interim analysis of the PERFECTION observational study.
Materials and methods. The study included a group of 51 patients diagnosed with stage IV CC. The treatment efficacy was analyzed using the Fleming method with the objective response rate criterion according to RECIST 1.1. Safety was assessed by the incidence of adverse events (AEs) and serious AEs according to the CTCAE 5.0 toxicity scale.
Results. At stage g2, an objective response was reported in 24 (47.1%) patients, which exceeded the target threshold (22 responses). 5 (9.8%) patients experienced immune-mediated AEs, a total of 6 cases, including 1 case of grade 3 AE. The overall objective response rate was consistent with KEYNOTE-826, but the AE rate was lower (34.5% in KEYNOTE-826).
Conclusion. Pembroria® has demonstrated efficacy comparable to that of the original pembrolizumab product and an acceptable safety profile. Differences in the incidence of immune-mediated AEs associated with Pembroria® require further study, considering the duration of observation and sample size. The results support using Pembroria® in routine clinical practice.
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##article.viewOnOriginalSite##About the authors
Valeria V. Saevets
Chelyabinsk Regional Clinical Center of Oncology and Nuclear Medicine; South Ural State Medical University
Author for correspondence.
Email: lalili2013@mail.ru
ORCID iD: 0000-0003-2572-2408
Cand. Sci. (Med.), Oncologist, Head of Department
Russian Federation, Chelyabinsk; ChelyabinskNikita K. Kuzmin
Chelyabinsk Regional Clinical Center of Oncology and Nuclear Medicine
Email: lalili2013@mail.ru
ORCID iD: 0009-0007-4139-2046
Oncologist
Russian Federation, ChelyabinskNatalia A. Ponomareva
Ivanovo Regional Oncology Dispensary
Email: lalili2013@mail.ru
Oncologist
Russian Federation, IvanovoTatiana V. Krashikhina
Moscow Center for Restorative Treatment
Email: lalili2013@mail.ru
ORCID iD: 0000-0001-7567-8308
Cand. Sci. (Med.), Oncologist
Russian Federation, MoscowAnastasia S. Mochalova
Medsi Group
Email: lalili2013@mail.ru
ORCID iD: 0000-0002-7681-5383
D. Sci. (Med.), Oncologist, Head of Department
Russian Federation, MoscowLeonid A. Vasilyev
Modern Medical Technologies JSC
Email: lalili2013@mail.ru
D. Sci. (Med.), Oncologist, Chief Physician
Russian Federation, Saint PetersburgDaniil L. Stroyakovsky
Moscow City Oncology Hospital No. 62
Email: lalili2013@mail.ru
ORCID iD: 0000-0003-1973-1092
Cand. Sci. (Med.), Head of Department
Russian Federation, MoscowLarisa A. Kolomiets
Cancer Research Institute – a branch of the Tomsk National Research Medical Center of the Russian Academy of Sciences
Email: lalili2013@mail.ru
ORCID iD: 0000-0002-6854-8940
D. Sci. (Med.), Oncologist, Head of Department
Russian Federation, TomskSvetlana V. Averyanova
Regional Clinical Oncology Dispensary
Email: lalili2013@mail.ru
Cand. Sci. (Med.), Deputy Chief Physician
Russian Federation, SaratovMarina A. Yavorskaya
Oncology Dispensary No. 2
Email: lalili2013@mail.ru
Cand. Sci. (Med.), Deputy Chief Physician
Russian Federation, SochiSvetlana A. Orlova
Republican Clinical Oncology Dispensary
Email: lalili2013@mail.ru
Head of Department
Russian Federation, CheboksaryMira V. Boskhomjieva
Timoshkaeva Republican Oncology Dispensary
Email: lalili2013@mail.ru
Deputy Chief Physician for Medical Affairs
Russian Federation, ElistaEkaterina V. Peganova
Clinical Oncology Hospital
Email: lalili2013@mail.ru
Oncologist
Russian Federation, YaroslavlAnna I. Shalina
Clinical Oncology Hospital
Email: lalili2013@mail.ru
Oncologist
Russian Federation, YaroslavlAntonina A. Kosukhina
Belgorod Regional Oncology Dispensary
Email: lalili2013@mail.ru
Head of Department
Russian Federation, BelgorodAlexander M. Khaikin
Smolensk Regional Clinical Hospital
Email: lalili2013@mail.ru
Oncologist
Russian Federation, SmolenskAlexander V. Shkradyuk
Efetov Crimean Republican Oncologic Clinical Dispensary
Email: lalili2013@mail.ru
Head of Department
Russian Federation, SimferopolElvira A. Bobrova
Loginov Moscow Clinical Scientific Center
Email: lalili2013@mail.ru
Oncologist
Russian Federation, MoscowTatiana N. Dikhtyar
Primorsky Regional Oncology Dispensary
Email: lalili2013@mail.ru
Oncologist
Russian Federation, VladivostokValentina E. Shikina
Vladimirsky Moscow Regional Research Clinical Institute
Email: lalili2013@mail.ru
ORCID iD: 0000-0002-6672-4269
Cand. Sci. (Med.)
Russian Federation, MoscowAlexander V. Sultanbaev
Republican Clinical Oncology Dispensary; Bashkir State Medical University
Email: lalili2013@mail.ru
ORCID iD: 0000-0003-0996-5995
Cand. Sci. (Med.), Head of Department
Russian Federation, Ufa; UfaIgor Yu. Kudryavtsev
Kaluga Regional Clinical Oncology Dispensary; Tsiolkovsky Kaluga State University
Email: lalili2013@mail.ru
ORCID iD: 0000-0002-3811-3612
D. Sci. (Med.), Oncologist, Deputy Chief Physician
Russian Federation, Kaluga; KalugaArina V. Zinkina-Orikhan
BIOCAD JSC
Email: lalili2013@mail.ru
ORCID iD: 0000-0002-8499-2232
Director of the Clinical Development Department
Russian Federation, Saint PetersburgSergey N. Fogt
BIOCAD JSC
Email: lalili2013@mail.ru
ORCID iD: 0000-0001-8734-2449
Cand. Sci. (Med.), Head of Department
Russian Federation, Saint PetersburgPolina V. Kiseleva
BIOCAD JSC
Email: lalili2013@mail.ru
ORCID iD: 0009-0001-2532-5560
Technical Support Specialist
Russian Federation, Saint PetersburgEvgeny V. Svechnikov
BIOCAD JSC
Email: lalili2013@mail.ru
ORCID iD: 0009-0003-0556-1931
Cand. Sci. (Med.)
Russian Federation, Saint PetersburgReferences
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