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Mismatch repair-deficient (dMMR) endometrial cancer is an inflamed phenotype with poor outcomes when meeting high-risk criteria and limited treatment options in the adjuvant setting. We report protocol-prespecified subgroup analysis of patients with dMMR tumors from the phase 3 ENGOT-en11/GOG-3053/KEYNOTE-B21 study (NCT04634877) in newly-diagnosed, high-risk endometrial cancer after surgery with curative intent. Patients were randomized to pembrolizumab 200mg or placebo (6 cycles) plus carboplatin-paclitaxel (4-6 cycles) Q3W, then pembrolizumab 400mg or placebo Q6W (6 cycles), respectively. MMR status was a stratification factor. Patients received radiotherapy at investigator discretion. Investigator-assessed disease-free survival (DFS) was a primary endpoint. No formal hypothesis testing was performed for subgroup analysis. In the intention-to-treat population, 141 patients in the pembrolizumab arm and 140 in the placebo arm had dMMR tumors. At this interim analysis, hazard ratio for DFS favored pembrolizumab (0.31; 95%CI, 0.14-0.69); median DFS was not reached in either group. Two-year DFS rates were 92.4% (95%CI, 84.4%-96.4%) and 80.2% (95%CI, 70.8%-86.9%), respectively. No new safety signals occurred. Longer-term follow-up of outcomes will be evaluated at final analysis. Preplanned subgroup analysis based on the study's stratification factors suggests that pembrolizumab plus chemotherapy improves DFS and is clinically relevant for patients with dMMR tumors in the curative-intent setting.

Background: Low-risk gestational trophoblastic neoplasia (GTN) are currently receiving monochemotherapy as first-line therapy. In the case of a resistance, a second-line mono- or polychemotherapy is proposed. As an alternative to these toxic and historic chemotherapy agents, the efficacy of the anti-PD-L1 monoclonal antibody (avelumab) was assessed in the TROPHIMMUN phase II trial Cohort A. Avelumab yielded a 53% cure rate with an acceptable tolerance profile, including normal further pregnancy and delivery. Beyond the blockade of PD-1/PD-L1 interactions, avelumab effect could rely on the induction of antibody-dependent cell-mediated cytotoxicity (ADCC) mediated by FcγR3A-expressing natural killer (NK) cells., Objective: This translational study aimed at testing whether ADCC is involved in avelumab efficacy on GTN and if FcγR3A affinity polymorphism could help predicting the response to avelumab in GTN., Study Design: The expression of PD-L1 by the tumor and the phenotype of NK cells infiltrating GTN were verified by performing transcriptomic and proteomic analyses. Then, JEG-3 choriocarcinoma cells were cocultured with human NK cells in presence and absence of avelumab. The impact of FcγR3A functional polymorphism was assessed on the activation status of NK cells and the viability of JEG-3 choriocarcinoma cells. Finally, the data from TROPHIMMUN trial were reanalyzed to determine the impact of the FcγR3A polymorphism of patients on their response to avelumab., Results: We confirmed that FcγR3A+ NK cells infiltrated PD-L1-expressing GTN. In vitro, avelumab-coated JEG-3 choriocarcinoma cells induced NK cell activation, which promoted the destruction of JEG-3 cells. NK cell activation was abolished when the Fc portion of avelumab was removed, demonstrating the importance of Fcγ receptor in this process. Using this model of ADCC, we demonstrated that high-affinity FcγR3A polymorphism on NK cells was associated with better in vitro response to avelumab. In line with this result, patients from the TROPHIMMUN trial homozygous for the high affinity FcγR3A polymorphism had better clinical response to avelumab., Conclusions: Our work demonstrates that ADCC contributes to the therapeutic effect of avelumab in GTN and that the individual patient response is impacted by the FcγR3A polymorphism. The FcγR3A polymorphism could be used as a biomarker to identify patients diagnosed with monochemoresistant GTN who are most likely to respond to avelumab., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)

Ovarian cancer is a leading cause of death from gynecological cancers worldwide. Platinum-based chemotherapy provides the cornerstone of the medical management. In first line and subsequent relapses, maintenance strategies are offered to prolong intervals between lines of chemotherapy. Current maintenance options involve bevacizumab and poly ADP-ribose polymerase inhibitors, but these lines of therapy can only be used once in the disease course. Patients in first or second platinum sensitive relapse after poly ADP-ribose polymerase inhibitors and bevacizumab represent an area of unmet medical need. This academic sponsored, international Phase II randomized trial is evaluating the combination of a therapeutic cancer vaccine (OSE2101) with anti-PD1 (pembrolizumab) as maintenance therapy, in patients with platinum-sensitive recurrence regardless of number of prior lines and no progression after platinum-based chemotherapy. Clinical Trial Registration: NCT04713514 (ClinicalTrials.gov).

Objective: Retifanlimab is a humanized immunoglobulin G4 monoclonal antibody against programmed death 1 being investigated in several solid tumor types. We report final results from patients with recurrent microsatellite instability-high (MSI-H)/mismatch repair deficient (dMMR) endometrial cancer treated with retifanlimab in a POD1UM-101 expansion cohort., Methods: Eligible patients (≥18 years; histologically proven/unresectable/recurrent, MSI-H/dMMR endometrial cancer; checkpoint inhibitor naive) received retifanlimab 500 mg intravenously every 4 weeks for ≤2 years. Primary endpoint was safety/tolerability., Results: At data cutoff (May 17, 2023), 76 patients had received at least one retifanlimab dose. Median (range) age was 67 (49-88) years; 88.2% of patients had recurrent metastatic disease and 80.3% had visceral metastases. Seventy-five patients (98.7%) had received at least one prior systemic therapy. Median retifanlimab exposure was 10.0 (0.03-25.9) months; 23 patients completed treatment. 38 patients (50.0%) had grade ≥3 treatment-emergent adverse events (TEAEs), most commonly anemia (n = 10 [13.2%]). 63 patients (82.9%) had treatment-related AEs (TRAEs; grade ≥3, n = 14 [18.4%]); most common was fatigue (n = 14 [18.4%]). Two patients had TEAEs that led to death; no TRAEs were fatal. 39 patients had objective responses (51.3%; 95% CI, 39.6-63.0%); 19 patients (25.0%) had complete response and 20 (26.3%) had partial response. Median progression-free survival was 12.2 months; 30 patients (76.9%) had duration of response (DOR) ≥12 months. Median DOR was not reached after median follow-up time of 26.0 months., Conclusions: Retifanlimab was generally well tolerated and demonstrated encouraging anti-tumor activity in patients with pre-treated recurrent MSI-H/dMMR endometrial cancer., Competing Interests: Declaration of competing interest Patricia Pautier received travel funding from Amgen, AstraZeneca, GlaxoSmithKline, MSD, Novartis, PharmaMar, and Tesaro; had an advisory role with AstraZeneca, Genmab, MSD, Onxeo, PharmaMar, and Roche; and received honoraria from AstraZeneca, Eisai, MSD, and PharmaMar. Domenica Lorusso had consultancy roles with Novartis and PharmaMar; had advisory and invited speaker roles with AstraZeneca, Clovis Oncology, Genmab, GlaxoSmithKline, ImmunoGen, MSD, and Seagen; received institutional support from Clovis Oncology, Corcept, Genmab, ImmunoGen, and MSD; and received grants for academic trials from Clovis Oncology, GlaxoSmithKline, and MSD. Christine Gennigens received a grant from AstraZeneca, GlaxoSmithKline; received consulting fees from Ispen, GlaxoSmithKline, and MSD; received honoraria for lectures from AstraZeneca, Bristol Myers Squibb, GlaxoSmithKline, Ipsen, MSD, Pfizer, and PharmaMar; received support for meetings and/or travel from GlaxoSmithKline, Ipsen, MSD, Pfizer, and PharmaMar; and participated in a data safety monitoring board/advisory board for AstraZeneca, Bristol Myers Squibb, Eisai, GlaxoSmithKline, Ipsen, and MSD. Laurence Gladieff participated in an advisory board for AstraZeneca, Clovis Oncology, GlaxoSmithKline, and MSD; received honoraria from AstraZeneca, GlaxoSmithKline, MSD, PharmaMar, and Roche; and received congress funding from GlaxoSmithKline, PharmaMar, Roche, and Viatris. Jill Bowman, Chuan Tian, and Mark Cornfeld have employment and stock ownership at Incyte Corporation. Toon Van Gorp received consulting fees from AstraZeneca, BionTech, Eisai, GlaxoSmithKline, ImmunoGen, Incyte, Karyopharm, MSD, OncXerna, Seagen, Tubulis, and Zentalis; had corporate-sponsored research from Amgen, AstraZeneca, and Roche; and received honoraria for lectures from GlaxoSmithKline, ImmunoGen, and MSD. All payments were via the institution. Dominique Berton and Anna Kryzhanivska have no conflict of interest related to this manuscript., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)

Background: Ovarian cancer has the highest mortality among gynecologic cancers, primarily because it typically is diagnosed at a late stage and because of the development of chemoresistance in recurrent disease. Improving outcomes in women with platinum-resistant ovarian cancer is a substantial unmet need. Activation of the glucocorticoid receptor (GR) by cortisol has been shown to suppress the apoptotic pathways used by cytotoxic agents, limiting their efficacy. Selective GR modulation may be able to counteract cortisol's antiapoptotic effects, enhancing chemotherapy's efficacy. A previous phase 2 study has shown that adding intermittently dosed relacorilant, a selective GR modulator, to nab-paclitaxel improved outcomes, including progression-free survival (PFS) and overall survival (OS), with minimal added toxicity, in women with recurrent platinum-resistant ovarian cancer. The ROSELLA study aims to confirm and expand on these findings in a larger population., Methods: ROSELLA is a phase 3, randomized, 2-arm, open-label, global multicenter study in women with recurrent, platinum-resistant, high-grade serous epithelial ovarian, primary peritoneal, or fallopian tube cancer. Eligible participants have received 1 to 3 lines of prior systemic anticancer therapy, including ≥1 prior line of platinum therapy and prior treatment with bevacizumab, with documented progressive disease or intolerance to the most recent therapy. There is no biomarker-based requirement for participant selection. Participants are randomized 1:1 to receive intermittently dosed relacorilant in combination with nab-paclitaxel or nab-paclitaxel monotherapy. The study's primary efficacy endpoint is PFS as assessed by blinded independent central review. Secondary efficacy endpoints include OS, investigator-assessed PFS, objective response rate, best overall response, duration of response, clinical benefit rate at 24 weeks, and cancer antigen 125 response. The study is also evaluating safety and patient-reported outcomes., Trial Registration: ClinicalTrials.gov Identifier: NCT05257408; European Union Drug Regulating Authorities Clinical Trials Database Identifier: 2022-000662-18., Competing Interests: Alexander B. Olawaiye: Grants/research support, Corcept Therapeutics, AstraZeneca; Honoraria or consultation fees, AstraZeneca, GSK, Merck, Genentech., (© 2024. Asian Society of Gynecologic Oncology, Korean Society of Gynecologic Oncology, and Japan Society of Gynecologic Oncology.)

Objective: In the PAOLA-1/ENGOT-ov25 trial (NCT02477644), adding maintenance olaparib to bevacizumab provided a substantial progression-free survival benefit in patients with newly diagnosed advanced ovarian cancer and homologous recombination deficiency (HRD)-positive tumors, irrespective of clinical risk. Subsequently, a clinically meaningful improvement in overall survival was reported with olaparib plus bevacizumab in the HRD-positive subgroup. We report updated progression-free survival and overall survival by clinical risk and HRD status., Methods: Patients in clinical response after first-line platinum-based chemotherapy plus bevacizumab received maintenance olaparib (up to 24 months) plus bevacizumab (up to 15 months in total) or placebo plus bevacizumab. This post hoc analysis evaluated 5-year progression-free survival and mature overall survival in patients classified by clinical risk and HRD status., Results: Of 806 randomized patients, 74% were higher-risk and 26% were lower-risk. In higher-risk HRD-positive patients, the hazard ratio (HR) for progression-free survival was 0.46 (95% confidence interval (95% CI) 0.34 to 0.61), with 5-year progression-free survival of 35% with olaparib plus bevacizumab versus 15% with bevacizumab alone; and the HR for overall survival was 0.70 (95% CI 0.50 to 1.00), with 5-year overall survival of 55% versus 42%, respectively. In lower-risk HRD-positive patients, the HR for progression-free survival was 0.26 (95% CI 0.15 to 0.45), with 5-year progression-free survival of 72% with olaparib plus bevacizumab versus 28% with bevacizumab alone; and the HR for overall survival was 0.31 (95% CI 0.14 to 0.66), with 5-year overall survival of 88% versus 61%, respectively. No benefit was seen in HRD-negative patients regardless of clinical risk., Conclusion: This post hoc analysis indicates that in patients with newly diagnosed advanced HRD-positive ovarian cancer, maintenance olaparib plus bevacizumab should not be limited to those considered at higher risk of disease progression. Five-year progression-free survival rates support long-term remission and suggest an increased potential for cure with particular benefit suggested in lower-risk HRD-positive patients., Competing Interests: Competing interests: Domenica Lorusso reports consultancy fees (personal) from Amgen, AstraZeneca, Clovis Oncology, Genmab, GSK, Immunogen, MSD, PharmaMar, and Seagen; membership on an advisory board (personal) for AstraZeneca, Clovis Oncology, Corcept, Genmab, GSK, Immunogen, Merck Serono, MSD, Oncoinvest, PharmaMar, Seagen, and Sutro; and research funding (institutional) from AstraZeneca, Clovis Oncology, Genmab, GSK, Immunogen, Incyte, MSD, Novartis, PharmaMar, Roche, and Seagen; and travel support from Roche, PharmaMar, AstraZeneca, Clovis Oncology, and GSK. Marie-Ange Mouret-Reynier reports board membership (personal and institution) for Pfizer, Lilly, Novartis, MSD, and AstraZeneca; and research funding (personal and institution) from Pfizer, Lilly, Novartis, MSD, and AstraZeneca. Philipp Harter reports honoraria from Amgen, AstraZeneca, GSK, Roche, Sotio, Stryker, Zai Lab, MSD, Clovis, Eisai, Mersana, and Exscientia; membership on an advisory board for AstraZeneca, Roche, GSK, Clovis, Immunogen, MSD, Miltenyi, Novartis, and Eisai; and research funding (institutional) from AstraZeneca, Roche, GSK, Genmab, Immunogen, Seagen, Clovis, and Novartis. Claire Cropet reports no conflicts of interest. Cristina Caballero reports no conflicts of interest. Pia Wolfrum-Ristau reports no conflicts of interest.Toyomi Satoh reports no conflicts of interest. Ignace Vergote reports consulting fees (personal) from Agenus, Akesobio, AstraZeneca, BMS, Deciphera Pharmaceuticals, Eisai, Elevar Therapeutics, Exelixis, Roche, Genmab, GSK, Immunogen, Jazz Pharmaceuticals, Karyopharm, Mersana, Molecular Partners, MSD, Novocure, Novartis, Oncoinvent, OncXerna, Regeneron, Sanofi, Seagen, Sotio, Verastem Oncology, and Zentalis; contracted research (via KULeuven; institution) for Oncoinvent AS; corporate sponsored research (institution) from Amgen and Roche; and travel support (personal) from Karyopharm, Genmab, and Novocure.Gabriella Parma reports no conflicts of interest. Trine Jakobi Nøttrup reports no conflicts of interest. Coriolan Lebreton reports honoraria (personal) from Eisai, Clovis Oncology, MSD, and GSK. Peter A Fasching reports membership on an advisory board (personal) for Agendia, AstraZeneca, Daiichi-Sankyo, Eisai, Hexal, Lilly, MSD, Novartis, Pfizer, Pierre Fabre, Roche, Sanofi Aventis, and Seagen; invited speaker fees (personal) from AstraZeneca, Daiichi-Sankyo, Eisai, Gilead, Lilly, MSD, Novartis, and Seagen; and medical writing support (personal) from Roche. Carmela Pisano reports membership on an advisory board (personal) for AstraZeneca, MSD and GSK; and honoraria (personal) from Clovis Oncology. Luis Manso reports no conflicts of interest. Hugues Bourgeois reports no conflicts of interest. Ingo Runnebaum reports no conflicts of interest. Claudio Zamagni reports reports grants or contract to self from Amgen, Celgene, Daiichi, Eisai, Eli Lilly, GSK, MSD, and PharmaMar; grants or contract to self and institution from AstraZeneca, Instituto Gentili, Novartis, Pfizer, Pierre Fabre, Roche, Seagen, Tesaro, and Teva; support for attending meetings and/or travel from Celgene, Instituto Gentili, Novartis, Pfizer, PharmaMar, Pierre Fabre, Roche, and Tesaro; participation on a data safety monitoring board or advisory board for Amgen, AstraZeneca, Celgene, Daiichi, Eisai, Eli Lilly, GSK, MSD, Novartis, Pfizer, PharmaMar, QuintilesIMS, Roche, and Tesaro; and other financial or non-interests for Amgen, AstraZeneca, Daiichi, GSK, MSD, Novartis, Pfizer, PharmaMar, QuintilesIMS, Roche, and Tesaro. Anne-Claire Hardy-Bessard reports membership on an advisory board (personal) for MSD, AstraZeneca, GSK, Pfizer, and Novartis. Andreas Schnelzer reports no conflicts of interest. Michel Fabbro reports honoraria from GSK. Barbara Schmalfeldt reports honoraria from Roche, AstraZeneca, Tesaro, Clovis, GSK, and MSD; consultancy or advisory roles from Roche, AstraZeneca, Tesaro, Clovis, GSK, and MSD; membership of a speaker’s bureau for Roche, AstraZeneca, Tesaro, Clovis, GSK, and MSD; research funding from Roche, AstraZeneca, Tesaro, Clovis, GSK, and MSD; and funding for travel or accommodation expenses from Roche, AstraZeneca, and Tesaro. Dominique Berton reports no conflicts of interest. Antje Belau reports honoraria from Roche, AstraZeneca, Clovis, MSD, Daiichi Sankyo Company, Lilly, and Seagen; advisory roles for Pfizer, Roche, AstraZeneca, MSD, Lilly, Daiichi Sankyo Company, and Seagen; and funding for travel or accommodation expenses from Roche, AstraZeneca, and Daiichi Sankyo Company. Jean-Pierre Lotz reports no conflicts of interest. Martina Gropp-Meier reports no conflicts of interest. Laurence Gladieff reports payment or honoraria for lectures, presentations, speakers bureaus, manuscript writing, or educational events from AstraZeneca, Clovis, Eisai, GSK, and MSD; and participation on an advisory board for AstraZeneca, GSK, and MSD. Hans-Joachim Lück reports participation on advisory boards for AstraZeneca, GSK, Seagen, Gilead, Novartis, and Lilly and speaker roles for AstraZeneca, Lilly, Gilead, Pfizer, and Novartis. Sophie Abadie-Lacourtoisie reports no conflicts of interest. Eric Pujade-Lauraine reports membership on an advisory board (personal) for Roche, GSK, and AstraZeneca; Independent Data Monitoring Committee board membership (personal) for Agenus and Incyte; and employment (personal) at ARCAGY Research. Isabelle Ray-Coquard reports honoraria (personal) from Abbvie, Agenus, Advaxis, BMS, PharmaMar, Genmab, Pfizer, AstraZeneca, Roche, GSK, MSD, Deciphera, Mersena, Merck Sereno, Novartis, Amgen, Tesaro, and Clovis Oncology; honoraria (institution) from GSK, MSD, Roche, and BMS; advisory/consulting fees from Abbvie, Agenus, Advaxis, BMS, PharmaMar, Genmab, Pfizer, AstraZeneca, Roche/Genentech, GSK, MSD, Deciphera, Mersena, Merck Sereno, Novartis, Amgen, Tesaro, and Clovis Oncology; research grant/funding (personal) from MSD, Roche, and BMS; research grant/funding (institution) from MSD, Roche, BMS, Novartis, AstraZeneca, and Merck Sereno; and travel support from Roche, AstraZeneca, and GSK., (© IGCS and ESGO 2024. Re-use permitted under CC BY-NC. No commercial re-use. Published by BMJ.)

Most patients with advanced ovarian cancer (AOC) ultimately relapse after platinum-based chemotherapy. Combining bevacizumab, olaparib, and durvalumab likely drives synergistic activity. This open-label phase 2 study (NCT04015739) aimed to assess activity and safety of this triple combination in female patients with relapsed high-grade AOC following prior platinum-based therapy. Patients were treated with olaparib (300 mg orally, twice daily), the bevacizumab biosimilar FKB238 (15 mg/kg intravenously, once-every-3-weeks), and durvalumab (1.12 g intravenously, once-every-3-weeks) in nine French centers. The primary endpoint was the non-progression rate at 3 months for platinum-resistant relapse or 6 months for platinum-sensitive relapse per RECIST 1.1 and irRECIST. Secondary endpoints were CA-125 decline with CA-125 ELIMination rate constant K (KELIM-B) per CA-125 longitudinal kinetics over 100 days, progression free survival and overall survival, tumor response, and safety. Non-progression rates were 69.8% (90%CI 55.9%-80.0%) at 3 months for platinum-resistant relapse patients (N = 41), meeting the prespecified endpoint, and 43.8% (90%CI 29.0%-57.4%) at 6 months for platinum-sensitive relapse (N = 33), not meeting the prespecified endpoint. Median progression-free survival was 4.1 months (95%CI 3.5-5.9) and 4.9 months (95%CI 2.9-7.0) respectively. Favorable KELIM-B was associated with better survival. No toxic deaths or major safety signals were observed. Here we show that further investigation of this triple combination may be considered in AOC patients with platinum-resistant relapse., (© 2024. The Author(s).)

Peritoneal carcinomatosis is an unavoidable development of ovarian cancer, from the first treatment to relapses, and is the main cause of patients death. Hyperthermic intraperitoneal chemotherapy (HIPEC), is a hope for cure for patients with ovarian cancer. HIPEC is based on direct application of chemotherapy on the perioneum with high concentration of chemotherapy enhanced with specific effects of hyperthermia. Theoretically, HIPEC could be proposed at different steps of ovarian cancer development. But the hypothesis of efficiency of a new treatment must be assessed before being routinely applied. Numerous clinical series are already published about HIPEC used in primary treatment of ovarian cancer or for relapses. These series are mostly retrospectives and based on heterogeneous parameters as inclusion criteria of patients, intra peritoneal chemotherapy, concentration, temperature, duration of HIPEC. Taking into account this heterogeneity it is not possible to draw strong scientific conclusions about HIPEC efficiency to treat ovarian cancer patients. We proposed a review allowing a better understanding of current recommendations of the use of HIPEC in ovarian cancer patients., (Copyright © 2023. Published by Elsevier Masson SAS.)

The fear that the medical oncologist may have is that HIPEC integrated into a multidisciplinary care pathway will negatively impact the treatments that will follow. This fear is largely related to the side effects, which are themselves dependent on the medication used. Cisplatin, most frequently used for epithelial ovarian cancers, has essentially renal toxicity, which can be avoided by the use of sodium thiosulfate. Oxaliplatin induces more severe toxicities post surgery than mitomycin C in colorectal cancers. However, the data from randomized trials are reassuring for the medical oncologist concerning the course of postoperative treatment, as long as HIPEC is performed according to a standardized protocol, within trained teams, and after multidisciplinary discussion concerning its modalities., (Copyright © 2023 Société Française du Cancer. Published by Elsevier Masson SAS. All rights reserved.)

Background: The GOG240 trial established bevacizumab with chemotherapy as standard first-line therapy for metastatic or recurrent cervical cancer. In the BEATcc trial (ENGOT-Cx10-GEICO 68-C-JGOG1084-GOG-3030), we aimed to evaluate the addition of an immune checkpoint inhibitor to this standard backbone., Methods: In this investigator-initiated, randomised, open-label, phase 3 trial, patients from 92 sites in Europe, Japan, and the USA with metastatic (stage IVB), persistent, or recurrent cervical cancer that was measurable, previously untreated, and not amenable to curative surgery or radiation were randomly assigned 1:1 to receive standard therapy (cisplatin 50 mg/m 2 or carboplatin area under the curve of 5, paclitaxel 175 mg/m 2 , and bevacizumab 15 mg/kg, all on day 1 of every 3-week cycle) with or without atezolizumab 1200 mg. Treatment was continued until disease progression, unacceptable toxicity, patient withdrawal, or death. Stratification factors were previous concomitant chemoradiation (yes vs no), histology (squamous cell carcinoma vs adenocarcinoma including adenosquamous carcinoma), and platinum backbone (cisplatin vs carboplatin). Dual primary endpoints were investigator-assessed progression-free survival according to Response Evaluation Criteria in Solid Tumours version 1.1 and overall survival analysed in the intention-to-treat population. This study is registered with ClinicalTrials.gov, NCT03556839, and is ongoing., Findings: Between Oct 8, 2018, and Aug 20, 2021, 410 of 519 patients assessed for eligibility were enrolled. Median progression-free survival was 13·7 months (95% CI 12·3-16·6) with atezolizumab and 10·4 months (9·7-11·7) with standard therapy (hazard ratio [HR]=0·62 [95% CI 0·49-0·78]; p<0·0001); at the interim overall survival analysis, median overall survival was 32·1 months (95% CI 25·3-36·8) versus 22·8 months (20·3-28·0), respectively (HR 0·68 [95% CI 0·52-0·88]; p=0·0046). Grade 3 or worse adverse events occurred in 79% of patients in the experimental group and in 75% of patients in the standard group. Grade 1-2 diarrhoea, arthralgia, pyrexia, and rash were increased with atezolizumab., Interpretation: Adding atezolizumab to a standard bevacizumab plus platinum regimen for metastatic, persistent, or recurrent cervical cancer significantly improves progression-free and overall survival and should be considered as a new first-line therapy option., Funding: F Hoffmann-La Roche., Competing Interests: Declaration of interests AO reports personal fees for participation in the advisory boards of AstraZeneca, Clovis Oncology, Deciphera, Genmab, GSK, Immunogen, Mersana Therapeutics, PharmaMar, MSD de España, Agenus, Sutro, Corcept Therapeutics, EMD Serono, Novocure, Shattuck Labs, iTeos, and Eisai; travel and accommodation support from AstraZeneca, PharmaMar, and Roche; and funding paid to institution from AbbVie Deutschland, Advaxis, Aeterna Zentaris, Amgen, Aprea Therapeutics AB, Clovis Oncology, Eisai, F Hoffmann-La Roche, Regeneron Pharmaceuticals, Immunogen, MSD de España, Takeda, PharmaMar, Tesaro, and Bristol Myers Squibb. LG reports support for attending meetings or travel from Viatris, GSK, and MSD; consulting fees paid to institution for participation in the advisory boards of Clovis, GSK, AstraZeneca, and Seagen; and speaker honoraria paid to institution from AstraZeneca, GSK, and Eisai. JM-G reports personal fees for participation in the advisory boards of AstraZeneca, Clovis, GSK, and PharmaMar; research grants paid to institution from GSK and Roche; and travel and accommodation expenses from GSK−Tesaro, Pfizer, and PharmaMar. GV reports honoraria for speaker engagements from MSD, Pierre Fabre, GSK, and Pfizer; and consulting fees from Reveal Genomics. UDG reports personal consulting fees from Amgen, AstraZeneca, Pfizer, BMS, Clovis Oncology, Dompé Farmaceutici, Merck, MSD, PharmaMar, Astellas, Bayer, Ipsen, Novartis, Eisai, and Janssen; other funding paid to institution from AstraZeneca, Sanofi, and Roche; and support for attending meetings or travel from Pfizer, Ipsen, and AstraZeneca. KL reports personal honoraria from Eisai; participation on data safety monitoring or advisory boards of Eisai, MSD, Nykode, AstraZeneca, and GSK (honoraria paid to institution); and funding paid to institution from GSK. LW reports personal honoraria for participation in the advisory boards of AstraZeneca, Pfizer, GSK, Roche, MSD–Merck, Eisai, and Seagen; personal honoraria for speaker engagements from AstraZeneca, Eisai, GSK, Pfizer, Roche, MSD–Merck, and Seagen; and support for attending meetings or travel from GSK and MSD. NC reports consultancy or advisory roles for AstraZeneca, Clovis Oncology, Eisai, GSK, Immunogen, Mersana, MSD−Merck, Nuvation Bio, OncXerna, Pfizer, Pieris, and Roche; promotional speaker roles for AstraZeneca, Novartis, Clovis Oncology, MSD−Merck, and GSK; research grants from AstraZeneca, GSK, and Roche; and support for attending meetings or travel from AstraZeneca and GSK. LD reports personal fees for scientific advisory boards from Aadi Bioscience and Regeneron; fees paid to institution for scientific advisory boards from Merck; membership of the British Journal of Obstetrics and Gynaecology Editorial Board; personal royalties for writing expert content for UpToDate, Wiley, and the American Society of Clinical Oncology; personal fees for continuing medical education activities for Advance Medical, CEA Group, and Clinical Care Options; research funding paid to institution for investigator-initiated trials from Merck; clinical trial grants paid to institution from Genentech−Roche, AbbVie (GOG 3005), Acrivon, Advaxis, Aduro BioTech, Alkermes, Blueprint, Constellation, Eisai, GSK–Novartis, Immunogen, Inovio, Iovance, Karyopharm, KSQ Therapeutics, Lycera, Merck, Morab, MorphoTek, Naveris, Nurix, OncoQuest, Pfizer, Syndax, Tesaro, and Zentalis; and fees paid to institution for membership of data and safety monitoring committees for Agenus and Inovio. AL reports personal fees for presentations or educational events from Medscape and PeerVoice; consulting fees paid to institution from Owkin; speaker honoraria paid to institution from MSD, GSK, AstraZeneca, and Eisai; fees paid to institution for participation in the advisory boards of AstraZeneca, MSD, Seagen, GSK, Genmab, Zentalis, and Blueprint; non-remunerated independent data safety monitoring board participation for Clovis and BMS; an educational grant paid to institution from AstraZeneca; and support for attending meetings or travel from OSE Immunotherapeutics. AG-O reports honoraria paid to institution for participation in the advisory board of Novartis; personal honoraria for speaker engagements from AstraZeneca, Pfizer, Novartis, and Lilly; and support for attending meetings or travel from Pfizer and Novartis. MJR reports personal fees for participation in the advisory boards of AstraZeneca, Clovis Oncology, GSK, PharmaMar, MSD de España, Eisai, and Roche; personal fees for speaker engagements from MSD, AstraZeneca, Clovis Oncology, GSK, and PharmaMar; and travel and accommodation from AstraZeneca, PharmaMar, Roche, GSK, and MSD de España. LF-M reports honoraria paid to institution for participation in the advisory boards of GSK; honoraria paid to institution for speaker engagements from GSK, AstraZeneca–MSD, and Eisai; and support for attending meetings or travel from AstraZeneca–MSD and GSK. DL reports personal fees for participation in the advisory boards of AstraZeneca, Clovis Oncology, Corcept, Genmab, GSK, Immunogen, MSD, Oncoinvent, PharmaMar, Seagen, and Sutro; personal fees for consultancy roles from AstraZeneca, Clovis Oncology, Genmab, GSK, Immunogen, MSD, Novartis, PharmaMar, and Seagen; clinical trial or research funding to institution from Clovis Oncology, GSK, MSD, and PharmaMar; other financial or non-financial interests from AstraZeneca, Clovis Oncology, Corcept, Genmab, GSK, Immunogen, Incyte, MSD, Novartis, Oncoinvent, PharmaMar, Roche, Seagen, and Sutro; and travel grants from AstraZeneca, Clovis Oncology, and GSK. IR-C reports personal honoraria for participation in the advisory boards of Adaptimmune, Agenus, Amgen, AstraZeneca, BMS, Clovis, Daiichi Sankyo, Deciphera, Eisai, EQRx, GSK, Merck Serono, MacroGenics, Mersana, Novartis, Onxeo, Roche, and Sutro Biopharma; honoraria paid to institution for participation in the advisory boards of MSD (translational research); and funding paid to institution for translational research from BMS. LM reports participation in the advisory board of Roche; and honoraria for speaker engagements from Roche, GSK, Clovis Oncology, AstraZeneca, Pfizer, Novartis, and Lilly. FJ reports honoraria for lectures, expert boards, and educational events from AstraZeneca, Clovis Oncology, GSK, and Seagen; travel and accommodation support from GSK, Eisai, and MSD; and financial support for national academic GINECO trials from GSK and AstraZeneca. JA reports honoraria for speaker bureaus from GSK, Roche, AstraZeneca, MSD, PharmaMar, and Clovis; and advisory boards for GSK, MSD, AstraZeneca, and Clovis. PF reports personal fees for expert testimony from Daiichi; personal fees for invited speaker engagements from GSK and MSD; and support for attending meetings or travel from Lilly, Novartis, and GSK. IR reports personal fees for advisory boards from AstraZeneca, Clovis Oncology, GSK, PharmaMar, Roche, and MSD; and travel and accommodation from AstraZeneca, PharmaMar, Roche, and GSK. CL reports honoraria for advisory board participation from GSK; personal honoraria for speaker engagements from GSK, Clovis Oncology, Eisai, and MSD; and support for attending meetings or travel from MSD and GSK. JAP-F reports honoraria for speaker engagements from AstraZeneca, PharmaMar, Pharma&, Clovis, and GSK; payment for expert testimony from AstraZeneca, GSK, Roche, and PharmaMar; support for attending meetings or travel from Karyopharm, AstraZeneca, Roche, and PharmaMar; grants paid to institution from GSK and PharmaMar; equipment, materials, drugs, medical writing, gifts, or other services paid to institution from GSK; participation on data safety monitoring or advisory boards for Ability Pharma; and has a patent pending in breast cancer. HD reports personal honoraria for advisory board participation from AstraZeneca. LMR reports honoraria for speaker engagements from Genmab−Seagen, Blueprint Oncology, Curio Science, and Physicians Education Resource; honoraria for participation in the advisory boards of AstraZeneca, Clovis Oncology, GOG Foundation, Aadi Biosciences, Seagen, OnTarget Laboratories, Merck, Mersana, Rubius Therapeutics, Myriad Genetics, Genentech−Roche, Eisai, Novocure, and Immunogen; consulting fees from the GOG Foundation; and funding paid to institution from Genentech−Roche, On Target Laboratories, Pfizer, Aivita Biomedical, Tesaro, AstraZeneca, Merck, Akeso Biopharma, and Grupo Español de Investigación en Cáncer ginecologico. All other authors declare no competing interests., (Copyright © 2024 Elsevier Ltd. All rights reserved.)