305P A real-world multicenter cohort study of lenvatinib (LEN) plus pembrolizumab (PEM) in Japanese patients with endometrial cancer: Interim analysis of GOGO-EM4 study
Yoshikazu NagaseSatoshi NakagawaYutaka UedaH. OgimotoMinàko KobayashiMasahiro ShiomiReisa KakubariAtsushi OtakeEriko YoshiokaMasami WatanabeTomomi Egawa‐TakataShinya MatsuzakiShigeru KoyamaTatsuya YokoiKisaki AmemiyaKagenori ItoShoji KamiuraTadashi Kimura
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ABSTRACTABSTRACTIntroduction At present, the combination of immune checkpoint inhibitors (ICIs) or an ICI and a tyrosine kinase inhibitor (TKI) are the main treatment options as first-line therapy for metastatic renal cell cancer (mRCC). Among them, pembrolizumab plus lenvatinib was recently launched in Japanese clinical practice.Area covered In this review, the efficacies and safety profiles of pembrolizumab plus lenvatinib for mRCC between Japanese and global populations are compared. In addition, lenvatinib is currently available for the treatment of not only mRCC but also of endometrial, thyroid, thymic, and hepatocellular cancers. We briefly summarized the characteristics of pembrolizumab plus lenvatinib or lenvatinib monotherapy for these malignancies. Finally, the characteristics of pembrolizumab plus lenvatinib for mRCC in the Japanese population are briefly elucidated.Expert opinion In order to develop optimal personalized treatment for mRCC patients, it is necessary for physicians who treat mRCC patients to possess in-depth knowledge of not only the efficacy and safety profile of the respective therapies but also of the interpatient heterogeneities between Japanese and global populations.KEYWORDS: Immune checkpoint inhibitor (ICI)tyrosine kinase inhibitor (TKI)combination therapypembrolizumab plus lenvatinibmetastatic renal cell cancer (mRCC)interpatient heterogeneity Article highlights At present, combinations of ICIs or TKI/ICI are the standard treatment options as first-line therapy for mRCC.Among the combination therapies, pembrolizumab plus lenvatinib just launched in 2022 Japanese clinical practice.We compare the efficacy and safety profile of pembrolizumab plus lenvatinib between Japanese and global populations.Efficacies, which include progression-free survival (PFS) and overall survival (OS) periods, complete response (CR) rates, objective response rates (ORRs), and disease control rates (DCRs), are comparable between these populations. The long PFS period (22.1 months), high CR rates (19.0%), high ORR (69.0%), and high DCR (95.2%) are attractive in the Japanese population.The incidences of specific adverse events, which include palmar-plantar erythrodysesthesia syndrome, proteinuria, dysphonia, hypothyroidism, and hypertension, appear to be higher in Japanese patients than in the overall population.As a result of the treatment-related dose reduction for these adverse events, the relative dose intensities (RDIs) of lenvatinib appear to be lower in Japanese patients than in the overall population.Nonetheless, due to the significance of the initial RDI of lenvatinib, its starting dose of 20 mg should not be reduced.Declaration of interestT Yuasa received remuneration for a lecture from Eizai (Tokyo, Japan) and MSD Japan (Tokyo, Japan).The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.Reviewer disclosuresPeer reviewers on this manuscript have no relevant financial or other relationships to disclose.Supplemental dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/14737140.2023.2200170.Additional informationFundingThis work was partly supported by JSPS KAKENHI Grant Number 21K09342 (S.K).
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Background
Pembrolizumab + vascular endothelial growth factor (VEGF) inhibitor lenvatinib demonstrated antitumor activity as first-line treatment for advanced clear cell renal cell carcinoma (ccRCC) in phase 3 trial KEYNOTE-581/CLEAR (NCT02811861). Hypoxia-inducible factor 2α (HIF-2α) inhibitor belzutifan (MK-6482) showed antitumor activity in ccRCC, and a coformulation of pembrolizumab and CTLA-4 inhibitor quavonlimab (MK-1308A) showed antitumor activity in non–small cell lung cancer. HIF-2α or CTLA-4 inhibition with PD-1 and VEGF inhibition backbone combination may provide additional benefit as first-line treatment in ccRCC. This open-label, randomized, phase 3 study (NCT04736706) will be conducted to compare novel combination therapies pembrolizumab + belzutifan + lenvatinib (arm A) and MK-1308A + lenvatinib (arm B) with pembrolizumab + lenvatinib (arm C).Methods
Approximately 1431 adults with metastatic ccRCC, measurable disease per RECIST v1.1, and Karnofsky Performance Status Scale score ≥70% who had not previously undergone systemic therapy for advanced ccRCC will be enrolled. Patients will be randomly assigned 1:1:1 to arm A (belzutifan 120 mg + lenvatinib 20 mg oral once daily + pembrolizumab 400 mg IV every 6 weeks), arm B (MK-1308A [quavonlimab 25 mg + pembrolizumab 400 mg] IV every 6 weeks and lenvatinib 20 mg oral once daily), or arm C (pembrolizumab 400 mg IV every 6 weeks + lenvatinib 20 mg oral once daily). Treatment will continue until documented disease progression, withdrawal of consent, or other discontinuation event; patients will receive pembrolizumab and MK-1308A for up to 18 cycles (approximately 2 years). Patients will be stratified by International mRCC Database Consortium (IMDC) score (favorable vs intermediate vs poor), region of the world (North America vs Western Europe vs rest of the world), and sarcomatoid features (yes vs no). Response will be assessed by CT or MRI per RECIST v1.1 by blinded independent central review (BICR) at week 12 from randomization, every 6 weeks through week 78, and every 12 weeks thereafter. Adverse events and serious adverse events will be monitored throughout the study and for 90 days after treatment. Dual primary end points are progression-free survival per RECIST v1.1 by BICR and overall survival. Primary end points will be assessed in arm A compared with arm C and in arm B compared with arm C for patients with IMDC intermediate/poor status and in all patients regardless of IMDC status. Secondary end points are objective response rate and duration of response per RECIST v1.1 by BICR, patient-reported outcomes, and safety.Acknowledgements
Medical writing and/or editorial assistance was provided by Matthew Grzywacz, PhD, of ApotheCom (Yardley, PA, USA). This assistance was funded by Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA, and Eisai Inc., Woodcliff Lake, NJ, USA. Funding for this research was provided by Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA,Eisai Inc., Woodcliff Lake, NJ, USA.Trial Registration
Clinicaltrials. gov, NCT04736706Ethics Approval
The study and the protocol were approved by the Institutional Review Board or ethics committee at each site.Lenvatinib
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Aim: Describe treatment and dosing patterns of lenvatinib and pembrolizumab combination therapy (lenva+pembro) among endometrial cancer (EC) patients in US clinical practice. Materials & methods: Retrospective cohort study among adults with EC initiating lenva+pembro in second line (2L) or third line and later [≥3L] between 17 September 2019 and 30 June 2021. Results: 110 patients initiated lenva+pembro in 2L and 135 patients in ≥3L. Majority of patients initiated lenva+pembro at label-recommended starting doses/interval. Less than half changed lenvatinib dose over time. At median follow-up of 7.3 and 8.7 months, median (95% CI) duration of therapy was 5.1 (4.7–6.1) and 5.8 (4.2–7.3) months for patients in 2L and ≥3L, respectively. Conclusion: Lenva+pembro was mostly initiated at label-recommended dose.
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TPS4595 Background: Most RCCs contain clear cell histology; the remainder of cases are summarized as nccRCC. nccRCC is a heterogeneous group of tumors and, with advanced metastases, survival is uniformly worse than with clear cell RCC (ccRCC) because of the aggressiveness of these cancers and a lack of effective systemic treatment options. Because data are limited for patients with nccRCC, the role of various agents in the treatment of nccRCC is poorly defined and there is no standard of care; treatment guidelines recommend clinical trials as preferred strategy. Inhibition of the PD-1/PD-L1 pathway is an effective treatment option for nccRCC, and pembrolizumab monotherapy has shown efficacy with an acceptable safety profile as first-line treatment. The VEGF TKI lenvatinib has also shown efficacy with a tolerable safety profile as combination therapy with everolimus for nccRCC. Also, in the phase 3 KEYNOTE-581 study (NCT02811861), the combination of lenvatinib + pembrolizumab as first-line therapy showed antitumor activity in patients with metastatic ccRCC, suggesting this combination might be an excellent therapeutic option for nccRCC. The phase 2, open-label, single-arm, KEYNOTE-B61 study (NCT04704219) is being conducted to evaluate pembrolizumab in combination with lenvatinib as first-line treatment for nccRCC. Methods: Patients with centrally confirmed nccRCC, locally advanced/metastatic measurable disease per RECIST v1.1 per blinded independent central review (BICR), no prior systemic therapy for nccRCC, and KPS score ≥70 will be enrolled. Approximately 152 patients will receive pembrolizumab 400 mg every 6 weeks and lenvatinib 20 mg once daily. Pembrolizumab treatment will continue for up to approximately 2 years or until a discontinuation criterion is met (disease progression, unacceptable toxicity, or withdrawal of consent); lenvatinib treatment can continue beyond 2 years or until one of the same discontinuation criterion is met. Participants who discontinue one of the treatments can continue to receive the other treatment as monotherapy. A second-course treatment phase is available for patients who meet specific criteria. CT/MRI will be performed at 12 weeks from the start of treatment, every 6 weeks until week 54, and every 12 weeks thereafter. Adverse events will be monitored throughout the study and graded using CTCAE, version 5.0, guidelines. The primary end point is objective response rate based on RECIST v1.1 per BICR. Secondary efficacy end points for this study are clinical benefit rate, disease control rate, duration of response, progression-free survival, overall survival, and safety. Tertiary/exploratory end points are biomarker analysis and association with clinical response/disease etiopathogenesis. Clinical trial information: NCT04704219.
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e16627 Background: Multi-kinase inhibitors and immune checkpoint inhibitors (ICIs) are treatment options of systemic therapy for unresectable hepatocellular carcinoma (HCC). Targeted therapy can potentially enhance T cell infiltration and activation, consequently, cooperate with ICIs to produce synergistic anti-tumor effects. The ongoing clinical trial shows promising data by combining pembrolizumab with lenvatinib for advanced HCC. The study tried to evaluate the treatment response and adverse events of pembrolizumab plus lenvatinib for HCC in real-world setting. Methods: From Jul. 2019, patients who received pembrolizumab plus lenvatinib for unresectable HCC in a tertiary medical center in Taiwan were prospectively enrolled. The status of HCC was either in advanced HCC or failed by prior locoregional treatment. The dosage of pembrolizumab was 100mg every 3 weeks. The starting dose of lenvatinib was 10mg per day then titrating to weight-based dose according to recommendation. Patients who had received at least 2 cycles of pembrolizumab were evaluated in this report. The tumor response was assessed with Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 and modified RECIST (mRECIST). The treatment related adverse events (TRAEs) were graded according to Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Results: Till the end of Jan. 2020, 27 patients had received at least 2 cycles of pembrolizumab, and 17 had evaluable post-treatment images either by CT or MRI. There were 6 (22.2%) in BCLC B, and 21 (77.8%) in BCLC C. Of them, 17 (63%) were treated as the first-line systemic treatment, 8 as the second-line and 2 as the third line systemic treatment. Of the 17 cases with post-treatment image studies, there were 6 (35.3%) in partial response (PR), 7 (41.2%) in stable disease (SD), and 4 (23.5%) in progressive disease (PD) by RECIST v1.1; and 1 (5.8%) in complete response (CR), 9 (52.9%) in PR, 3 (17.6%) in SD and 4 (23.5%) in PD by mRECIST, respectively. The objective response rate (ORR) and disease control rate (DCR) by mRECIST were 58.7% and 76.5%, respectively. The most common TRAEs in any grade were hypertension 24 (88.4%), palmar-plantar syndrome 19 (70.4%), hypothyroidism 19(70.4%). The Grade 3/4 TRAEs were 3 (11.1%) with psoriasis-like skin reaction, 3 (11.1%) with hypertension and 2 (7.4%) with palmar-plantar syndrome. Conclusions: Pembrolizumab plus lenvatinib can produce excellent ORR and DCR with tolerable safety profiles. Such combination could be a promising strategy for unresectable HCC in the future.
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•Research surrounding treatment of leiomyosarcoma (LMS) treatment remains sparse.•Pembrolizumab/lenvatinib has been reported as a therapy for endometrial cancer, though not yet as therapy for LMS.•This report demonstrates disease regression after use of pembrolizumab and lenvatinib in a patient with recurrent LMS.
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Abstract Background: Triple-negative breast cancer (TNBC) is associated with poor survival outcomes and treatment options are limited. These tumors lack therapeutic targets and become rapidly resistant to chemotherapy. The anti–PD-1 antibody pembrolizumab showed durable antitumor activity and manageable safety in patients with TNBC in the KEYNOTE-012, KEYNOTE-086, and KEYNOTE-119 studies. The combination of lenvatinib, an antiangiogenic multiple receptor tyrosine kinase inhibitor, with pembrolizumab has shown promising clinical outcomes in early-phase clinical trials across several cancer types. LEAP-005 (ClinicalTrials.gov, NCT03797326) is an ongoing study evaluating the efficacy and safety of lenvatinib combined with pembrolizumab in patients with previously treated advanced solid tumors. Here, we report the first results from the TNBC cohort of LEAP-005. Methods: This ongoing, multicohort, open-label, phase 2 study enrolled patients aged ≥18 y with previously treated, histologically or cytologically confirmed advanced TNBC. PD-L1 expression was assessed at a central laboratory using the PD-L1 IHC 22C3 pharmDx assay and measured using the combined positive score (CPS; number of PD-L1–positive tumor cells, lymphocytes, and macrophages divided by total number of tumor cells x 100). Patients received lenvatinib 20 mg once daily orally plus pembrolizumab 200 mg every 3 weeks intravenously for a maximum of 35 pembrolizumab doses, then lenvatinib alone until progressive disease or unacceptable toxicity. Primary endpoints were objective response rate (ORR) by blinded independent central review per RECIST version 1.1 and safety. Key secondary endpoints were disease control rate (DCR; defined as best overall response of complete response [CR], partial response [PR], or stable disease [SD] per RECIST v1.1), duration of response (DOR), progression-free survival (PFS), and overall survival (OS). Safety was monitored through 30 days after the last dose of study drug (90 days for serious AEs), with AEs graded using NCI CTCAE v4.0. Results: 31 patients have been enrolled in the TNBC cohort of LEAP-005. Median age was 56 y (range, 37 to 85), 58% had received ≥2 prior lines of therapy, and 26% had CPS ≥10 tumors. As of the April 10, 2020 data cutoff, median follow-up was 7 mo (range, 4 to 13). ORR was 29% (95% CI: 14–48), with 1 CR and 8 PRs. 9 pts had SD, and the DCR (CR + PR + SD) was 58% (95% CI: 39–76). 4 responses (1 CR and 3 PRs) were in patients with CPS ≥10 tumors (n=8) for an ORR of 50% (95% CI: 16–84), and 5 responses (all PRs) were in patients with CPS <10 tumors (n=22) for an ORR of 23% (95% CI: 8–45). Median DOR was not reached (range, 0+ to 8+ mo); 7 (78%) responses were ongoing at data cutoff. Median PFS was 4 mo (95% CI: 2–NR), with a 6-mo rate of 49%. Treatment-related AEs (TRAEs) occurred in 97% of pts; 10% discontinued due to TRAEs. 55% of pts had grade 3-5 TRAEs (1 death due to subarachnoid hemorrhage). Conclusions: Lenvatinib in combination with pembrolizumab showed promising antitumor activity with manageable toxicity in patients with previously treated advanced TNBC. Based on these early data, the cohort will be expanded to include 100 patients. Citation Format: Hyun Cheol Chung, Esma Saada-Bouzid, Federico Longo Muñoz, Eduardo Yanez, Seock-Ah Im, Eduardo Castanon, Donna M. Graham, Javier Garcia-Corbacho, Juanita Lopez, Razi Ghori, Corina Dutcus, Alan Smith, Kevin Norwood, Carlos Gomez-Roca. Lenvatinib plus pembrolizumab for previously treated, advanced triple-negative breast cancer: Early results from the multicohort phase 2 LEAP-005 study [abstract]. In: Proceedings of the 2020 San Antonio Breast Cancer Virtual Symposium; 2020 Dec 8-11; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2021;81(4 Suppl):Abstract nr PS12-07.
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Anaplastic thyroid carcinoma (ATC) are highly aggressive malignant tumors with poor overall prognosis despite multimodal therapy. As ATC are extremely rare, no randomized controlled study has been published for metastatic disease. Thyrosine kinase inhibitors, especially lenvatinib and immune checkpoint inhibitors such as pembrolizumab, are emerging drugs for ATC. Few studies have reported the efficacity of pembrolizumab and lenvatinib association, resulting in its frequent off-label use. In this review, we discuss rationale efficacy and safety evidence for the association of lenvatinib and pembrolizumab in ATC. First, we discuss preclinical rationale for pembrolizumab monotherapy, lenvatinib monotherapy and synergistic action of pembrolizumab and lenvatinib in the metastatic setting. We also discuss clinical evidence for immunotherapy and pembrolizumab in ATC through the analysis of studies evaluating immunotherapy, lenvatinib and pembrolizumab lenvatinib association in ATC. In addition, we discuss the safety of this association and potential predictive biomarkers of efficiency.
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Objective:To introduce the multi-armed interim analysis methods in clinical trials.Methods:Based on multi-armed analysis methods,extend the two-group group sequential interim analysis methods to multi-armed interim analysis.Results:Multi-armed interim analysis include the global test and pair-wise tests of all groups.Conclusion:The boundary for interim analysis is the key of multi-armed interim analysis.
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TPS399 Background: Combination therapy with the PD-1 inhibitor pembrolizumab and the vascular endothelial growth factor (VEGF) inhibitor lenvatinib showed antitumor activity as first-line treatment for advanced clear cell RCC (ccRCC) in the phase 3 KEYNOTE-581/CLEAR study (NCT02811861). Antitumor activity has also been shown with the hypoxia-inducible factor 2α (HIF-2α) inhibitor belzutifan (MK-6482) in ccRCC and with MK-1308A (coformulation of pembrolizumab and the CTLA-4 inhibitor quavonlimab) in non–small cell lung cancer. Therefore, HIF-2α or CTLA-4 inhibition with a PD-1 and VEGF inhibition backbone combination may provide additional benefit as first-line treatment in ccRCC. This open-label, randomized, phase 3 study (NCT04736706) will compare first-line treatment with the novel combination therapies pembrolizumab + belzutifan + lenvatinib (arm A) or MK-1308A + lenvatinib (arm B) with pembrolizumab + lenvatinib (arm C) for advanced RCC. Methods: Approximately 1,431 adults with metastatic ccRCC, measurable disease per RECIST v1.1, and KPS score ≥70% who had not previously undergone systemic therapy for advanced ccRCC will be enrolled. Patients will be randomly assigned 1:1:1 to arm A (belzutifan 120 mg + lenvatinib 20 mg orally once daily [QD] + pembrolizumab 400 mg IV every 6 weeks [Q6W]), arm B (MK-1308A [quavonlimab 25 mg + pembrolizumab 400 mg] IV [Q6W] and lenvatinib 20 mg orally QD), or arm C (pembrolizumab 400 mg IV [Q6W] + lenvatinib 20 mg orally QD). Treatment will continue until documented disease progression, withdrawal of consent, or other discontinuation event; patients will receive pembrolizumab and MK-1308A for up to 18 cycles (̃2 years). Stratification factors are International mRCC Database Consortium (IMDC) score (favorable vs intermediate vs poor), region of the world (North America vs Western Europe vs rest of world), and sarcomatoid features (yes vs no). Response will be assessed by CT or MRI per RECIST v1.1 by blinded independent central review (BICR) at week 12 from randomization, Q6W through week 78, and every 12 weeks thereafter. Adverse events and serious adverse events will be monitored throughout the study and for 90 days after treatment. Dual primary end points are progression-free survival per RECIST v1.1 by BICR and overall survival for arm A or arm B versus arm C in patients with IMDC intermediate/poor status and in all patients regardless of IMDC status. Secondary end points are objective response rate and duration of response per RECIST v1.1 by BICR, patient-reported outcomes, and safety. The study is recruiting patients at sites across, Asia, Australia, Europe, North America, and South America. Clinical trial information: NCT04736706.
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