Palmar-plantar Erythrodysesthesia Syndrome Research Articles

Camrelizumab plus famitinib in previously chemo-immunotherapy treated patients with advanced NSCLC: results from an open-label multicenter phase 2 basket study

BackgroundThe combination of immune checkpoint inhibitors and antiangiogenic agents has been effective in treating multiple cancers. This was further explored in an open-label, multicenter phase 2 basket study (NCT04346381), which evaluated the antitumor activity and safety of camrelizumab (an anti-PD-1 antibody) plus famitinib (a receptor tyrosine kinase inhibitor) in patients with advanced solid tumors. We herein report the findings from the cohort of advanced NSCLC patients who progressed after treatment with platinum-doublet chemotherapy and immunotherapy.MethodsEligible patients were enrolled and treated with camrelizumab (200 mg once every 3 weeks via intravenous infusion) and oral famitinib (20 mg once daily). The primary endpoint was the objective response rate (ORR). Secondary endpoints included the disease control rate (DCR), duration of response (DoR), progression-free survival (PFS), overall survival (OS), and safety.ResultsForty patients were enrolled in this cohort, with a median follow-up duration of 11.5 months. Three patients (7.5%) achieved a partial response, and 29 patients (72.5%) achieved stable disease. The ORR and DCR with this combination regimen were 7.5% (95% CI, 1.6–20.4) and 80.0% (95% CI, 64.4–90.9), respectively. The median DoR was 12.1 months (95% CI, 10.3-not reached). The median PFS was 5.4 months (95% CI, 4.1–7.5), and the median OS was 12.1 months (95% CI, 9.1–16.7). The estimated 12-month OS rate was 51.5% (95% CI, 34.9–65.9). The most frequent grade 3 or higher treatment-related adverse events occurring in more than 5% of patients included hypertension (27.5%), palmar-plantar erythrodysesthesia syndrome (10%), decreased neutrophil count (10%), and proteinuria (7.5%).ConclusionCamrelizumab plus famitinib demonstrated favorable benefits in PFS and OS, along with manageable safety profiles, in patients with advanced NSCLC who progressed after platinum-doublet chemotherapy and immunotherapy. This finding warrants further exploration.

Abstract RF01-07: The efficacy and safety of tinengotinib in patients with advanced or metastatic HR+/HER2- breast cancer or TNBC

Abstract Background: Tinengotinib is a novel multiple kinase inhibitor that strongly inhibits Aurora A/B, FGFR1/2/3, VEGFRs, JAK1/2, and CSF1R. Here we present the preliminary safety, pharmacokinetic and efficacy data of tinengotinib in patients (pts) with hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) breast cancer (BC) and triple-negative BC (TNBC) from Phase I TT420X2101 (NCT03654547) and Phase Ib/II TT420X1103 (NCT04742959) trials. Methods: Eligible pts with HR+/HER2- BC or TNBC who have no available standard therapeutic treatment options were enrolled to the TT420X2101 and TT420X1103 trials. Tinengotinib was given as monotherapy at different dose levels (5 mg QD, 10 mg QD and 12 mg QD); different dosing schedule (6 mg BID); and as combination (tinengotinib 8 mg QD and Abraxane 100 mg/m2). Recruitment spanned from January 2019 to March 2023. Results: As of June 2023, 36 pts with metastatic BC were treated: 30 with tinengotinib monotherapy at dose levels of 5 mg QD (n=1), 8 mg QD (n=4), 10 mg QD (n=5), 12 mg QD (n=18), 6 mg BID (n=2) and 6 with tinengotinib 8 mg QD in combination with nab-paclitaxel 100 mg/m2. Median age 51 years (range 24-75), ECOG PS 1 in 83.3% of pts, median lines of prior therapy were 5, and 77.8% of pts had prior taxanes. Of 30 pts receiving tinengotinib monotherapy, treatment related adverse events (TRAEs) were reported in 26 (86.7%) pts. 43.4% were Grade (G) 1-2, 43.3% were G3. No G4 or G5 TRAEs were reported. Common TRAEs (≥20%) of tinengotinib monotherapy were hypertension (60.0%), stomatitis (50.0%), palmar-plantar erythrodysesthesia syndrome (46.7%) and diarrhea (20.0%). All six (100%) pts receiving tinengotinib in combination with nab-paclitaxel experienced TRAEs, 16.7% were G1, 66.7% were G3, no G4 TRAEs, and one pt had G5 (pulmonary hemorrhage). Common TRAEs (≥20%) of tinengotinib in combination with nab-paclitaxel were neutrophil count decreased/neutropenia (50.0%), stomatitis (50.0%), hypertension (33.3%), hyponatremia (33.3%), hypokalemia (33.3%), and nausea (33.3%). Twenty-eight pts receiving tinengotinib monotherapy were efficacy evaluable. 11 pts with HR+/HER2- BC achieved objective response rate (ORR) of 45.5%, clinical benefit rate (CBR, CR+PR+SD ≥ 24 weeks) of 54.5% and median progression-free survival (mPFS) of 5.55 (95% CI 1.97-6.18) months. Partial responses were seen in 3 pts with HER2-zero (n=5) and 2 pts with HER2 low (1+/2+) pts (n=6), respectively. 17 pts with TNBC had ORR of 23.5%, CBR of 29.4% and mPFS of 2.73 (95% CI 1.68-6.41) months. In 6 pts treated with tinengotinib in combination with nab-paclitaxel, one out of 2 pts with HR+/HER2- BC achieved PR for 13 weeks as of data cutoff; two out of 4 pts with TNBC had SD. No significant difference in exposure was observed between tinengotinib monotherapy and tinengotinib in combination with nab-paclitaxel. Conclusions: Tinengotinib for the treatment of HR+HER2- BC or TNBC, whether as monotherapy or in combination with nab-paclitaxel, had manageable side effects. Tinengotinib has shown promising clinical benefit in heavily pre-treated pts with refractory HR+HER2- BC or TNBC. Clinical benefit was similar across the subgroups of pts with HR+ HER2-zero and HR+ HER2 low disease. Citation Format: Piha-Paul Sarina, Binghe Xu, Ying Fan, Yuan Yuan, Sayeh Lavasani, Joanne Mortimer, Sanjay Goel, Apostolia Tsimberidou, Nuhad Ibrahim, Sausan Abouharb, Carlos Barcenas, Adaeze lheme, Daniel Karp, Jordi Rodon Ahnert, Ecaterina Dumbrava, Jean Fan, Peng Peng, Caixia Sun, Hui Wang, Katie Hennessy, Ximei Fu, Ruolan Xu, Shumao Ni, Frank Wu, Funda Meric-Bernstam. The efficacy and safety of tinengotinib in patients with advanced or metastatic HR+/HER2- breast cancer or TNBC [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr RF01-07.

A phase IV study to evaluate the safety of fruquintinib in Chinese patients in real-world clinical practice.

Fruquintinib is approved in China for patients with metastatic colorectal cancer (CRC) who progressed after 2 lines of chemotherapy. This postmarketing study was conducted to evaluate the safety of fruquintinib in the Chinese population, including previously treated patients with advanced CRC and other solid tumors. Patients in the first cycle of fruquintinib or expected to start fruquintinib within a week were enrolled. Fruquintinib was administrated according to the label or per physicians' discretion. Patient characteristics and safety information were collected at baseline, 1 month, and 6 months after consent (or 30 days after the last dose). Overall, 3005 patients enrolled between April 24, 2019 and September 27, 2022. All enrolled patients received at least one dose of fruquintinib. Most patients had metastases at baseline. The median age was 60 years. More than half (64.0%) of the patients started fruquintinib at 5mg, and the median treatment exposure was 2.7 months. Nearly one-third (32.5%) of patients with CRC received fruquintinib with concomitant antineoplastic agents. Treatment-emergent adverse events (TEAEs) leading to dose modification were reported in 626 (20.8%) patients, and 469 (15.6%) patients experienced TEAEs leading to treatment discontinuation. The most common grade≥3 TEAEs were hypertension (6.6%), palmar-plantar erythrodysesthesia syndrome (2.2%), and platelet count decreased (1.0%). Combination therapy did not lead to excessive toxicities. The safety profile of fruquintinib in the real world was generally consistent with that in clinical studies, and the incidence of TEAEs was numerically lower than known VEGF/VEGFR inhibitor-related AEs. Fruquintinib exhibited manageable safety and tolerability in Chinese patients in the real-world setting.

Potential Antitumor Activity of Combined Lycopene and Sorafenib against Solid Ehrlich Carcinoma via Targeting Autophagy and Apoptosis and Suppressing Proliferation.

An FDA-approved kinase inhibitor called sorafenib (SOR) is used to treat primary kidney and liver cancer as well as to stop the spread of advanced breast cancer. Side effects from SOR, such as palmar-plantar erythrodysesthesia syndrome, can negatively impact an individual's quality of life. There are a lot of data supporting the importance of lycopene (LYC) in preventing cancer. The antitumor properties of the combination of sorafenib and lycopene were examined in this study. A viability test against MDA-MB-231 was used to assess the anticancer efficacy of sorafenib, lycopene, and their combination in vitro. Moreover, a cell cycle analysis and Annexin-V/PI double staining were performed by using flow cytometry. In addition, the protein level of JNK-1, ERK-1, Beclin-1, P38, and P53 of the MDA-MB-231 cell line was estimated using ELISA kits. In addition, mice with SEC were divided into four equal groups at random (n = 10) to investigate the possible processes underlying the in vivo antitumor effect. Group IV (SEC-SOR-LYC) received SOR (30 mg/kg/day, p.o.) and LYC (20 mg/kg/day, p.o.); Group I received the SEC control; Group II received SEC-SOR (30 mg/kg/day, p.o.); and Group III received SEC-LYC (20 mg/kg/day, p.o.). The findings demonstrated that the combination of sorafenib and lycopene was superior to sorafenib and lycopene alone in causing early cell cycle arrest, suppressing the viability of cancer cells, and increasing cell apoptosis and autophagy. Likewise, the combination of sorafenib and lycopene demonstrated inhibition of the levels of Bcl-2, Ki-67, VEGF, IL-1β, and TNF-α protein. Otherwise, the quantities of the proteins BAX, P53, and caspase 3 were amplified. Furthermore, the combined treatment led to a substantial increase in TNF-α, caspase 3, and VEGF gene expression compared to the equivalent dosages of monotherapy. The combination of sorafenib and lycopene enhanced apoptosis and reduced inflammation, as seen by the tumor's decreased weight and volume, hence demonstrating its potential anticancer effect.

Abstract CT059: Phase 1b trial Mipasetamab Uzoptirine (ADCT-601-102) dose escalation in patients with advanced bone and soft tissue sarcomas

Abstract Background: AXL is a cell surface receptor tyrosine kinase widely expressed in solid tumors (ST), including sarcomas. ADCT-601 (Mipasetamab uzoptirine; Mipa) is an antibody-drug conjugate comprising a humanized anti-AXL antibody conjugated via a cleavable linker to SG3199 (pyrrolobenzodiazepine dimer cytotoxin). Mipa demonstrated antitumor activity in pre-clinical mice models of sarcoma, adrenocortical carcinoma and pancreatic cancer, and clinical activity in ST patients (pts) in its first-in-human trial. Here, we report initial clinical data in pts with advanced bone and soft tissue sarcomas treated in dose escalation with Mipa. Objective: To characterize the safety and tolerability of Mipa in pts with sarcoma indications who exhausted standard of care therapy. Method: This is a phase 1b, open-label, dose-escalation, dose expansion study of Mipa (NCT05389462; EudraCT: 2021-00566-18). Pts received Mipa every 3 weeks (Q3W) at escalating dose levels, in a 3+3 dose escalation design. Results: As of 04 December 2023, 18 sarcoma patients (15 [83%], soft tissue sarcoma [STS] and 3 [17%] bone sarcoma), unselected for AXL expression, with a median number of 3 prior lines of therapy (1-10), were enrolled in 4 different dose cohorts: 7.5mg, 11mg, 13mg and 15mg. Reasons for treatment discontinuation were disease progression (10 pts [55.6%]), adverse events (3 pts [16.7%]) and consent withdrawal (2 pts [11.1%]). Treatment emergent adverse events (TEAE) were seen in 17 pts (94.4%). Most common TEAE (all grades and relationship [≥20%]) were palmar-plantar erythrodysesthesia syndrome (7 pts [38.9%]); anemia (6 pts [33.3%]); rash maculopapular (5 pts [27.8%]); cheilitis and constipation (4 pts each [22.2%]). TEAE≥grade 3 were seen in 9 pts (50%). Most common TEAE≥grade 3 (≥10%) were GGT increase (2 pts [11.1%]). Two dose limiting toxicities were seen: cheilitis grade 2 and grade 3 at 15mg and 13mg respectively. Cutaneous reactions, all grades, are more prominent in higher doses. Maximum tolerated dose (MTD) has not been established. In 17 sarcoma pts evaluable per RECISTv1.1, best overall response was partial response (PR) (2 pts [11.8%]), including a confirmed PR; stable disease (SD) (8 pts [47.1%]); progressive disease (7 pts [41.2%]). Tumor reductions was observed at 7.5mg, 11mg and 13mg. By week 12, 6/17 pts (35.3%) did not demonstrate PD . Initial IHC staining showed AXL expression in all sarcoma baseline biopsies tested so far. Initial pharmacokinetic (PK) data indicate exposures with moderate to marked interpatient variability; rapid clearance with no accumulation by Cycle 2. Updated biomarkers and PK data will be presented. Conclusion: The MTD was not established. Due to the incidence of TEAE judged related to Mipa and the preliminary activity observed, 15mg was selected as the highest dose to be tested in a fixed dose Q3W regimen. The study continues to enroll to further optimize Mipa dosing regimen and in dose escalation with gemcitabine. Citation Format: Brian Andrew Van Tine, Christopher T. Chen, Victor Moreno, Elizabeth J. Davis, Maria J. de Miguel, Antoine Italiano, Esma Saada-Bouzid, Mohammed Milhem, Claudia Valverde, Sant P. Chawla, Abdul Rafeh Naqash, Louise Carter, Robin Jones, Ilaria Conti, Joe Boni, Karin Havenith, Yvan LeBruchec, Serafino Pantano, Jean-Yves Blay. Phase 1b trial Mipasetamab Uzoptirine (ADCT-601-102) dose escalation in patients with advanced bone and soft tissue sarcomas [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr CT059.

Abstract CT033: Avelumab combined with regorafenib in solid tumors with tertiary lymphoid structures: A phase 2 REGOMUNE trial cohort

Abstract Background: Mature tertiary lymphoid structures (mTLS) predict improved outcome in patients treated with immune checkpoint inhibitors (ICIs). However, a significant proportion of patients with TLS-positive tumors do not respond to ICI when used as a single agent and may therefore benefit from combination therapy. The multikinase inhibitor, regorafenib, deplete regulatory T cells, an immune population associated with resistance to ICI in TLS-positive tumors. We report the results of the PD-L1 inhibitor avelumab combined with regorafenib in patients with mTLS-positive advanced solid tumors. Methods: ‘Regomune’ is an open-label, multicenter phase II study assessing the combination of avelumab (10mg/kg IV every 14 days) with regorafenib (160 mg daily for 3 weeks in a 4-week cycle) in patients with advanced mTLS-positive solid tumors. The mTLS status was centrally assessed as previously described (Vanhersecke et al Nature Cancer 2021). All patients had confirmed progressive disease at inclusion, based on a central review of imaging. The primary efficacy endpoint was a 6-month non-progression rate using RECIST v1.1 based on blinded central review. 29 assessable patients were deemed necessary, and to meet the primary endpoint, at least 8 patients needed to be progression-free at 6 months. Results: Between January 2021 and July 2022, 132 patients (5 centers) underwent mTLS screening. Of these, 55 (41.7%) were identified as mTLS+, and 38 were included in the study. The top five histological subtypes were MSS colorectal cancer (15.8%), sarcoma (13.1%), oesogastric (10.5%), biliary tract (7.9%), and pancreatic cancer (7.9%). The most frequent grade 3/4 adverse events were palmar-plantar erythrodysesthesia syndrome (23.7%), maculo-papular rash (18.4%), fatigue, and oral mucositis (7.9% each). No treatment-related deaths were reported. Of the 34 patients assessed for efficacy, 16 (47%) showed tumor shrinkage, with 9 achieving a partial response (26.7%) and 7 having stable disease (20.6%). The median duration of response was 6 months. Twelve patients (comprising various tumor types including MSS colorectal cancer, small bowel carcinomas, biliary tract cancer, sarcomas, thyroid and gynecological tumors.) were progression-free at 6 months, marking the study’s primary endpoint achievement. The median progression-free survival and overall survival were 3.6 months and 8.6 months, respectively. Spatial transcriptomics, multiplex immunofluorescence (IF) of tumor tissues, and comprehensive plasma proteomics analysis have collectively uncovered critical biomarkers that significantly determine both sensitivity and resistance to treatment. Conclusions: This is the first histology-agnostic clinical trial employing mTLS as a biomarker for patient selection for treatment with an immune checkpoint inhibitor-based regimen. Durable responses were recorded, even in cases typically resistant to immunotherapy, confirming the predictive value of mTLS. Trial Registration NCT03475953 Citation Format: Antoine Italiano, Sophie Cousin, Carine Bellera, Jean-Philippe Guegan, Jean-Philippe Metges, Antoine Adenis, Rastilav Bahleda, Philippe Cassier, Coralie Cantarel, Michele Kind, Jean Palussiere, Lucile Vanhersecke, Alban Bessede. Avelumab combined with regorafenib in solid tumors with tertiary lymphoid structures: A phase 2 REGOMUNE trial cohort [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 2 (Late-Breaking, Clinical Trial, and Invited Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(7_Suppl):Abstract nr CT033.

Regorafenib plus nivolumab in unresectable hepatocellular carcinoma: the phase 2 RENOBATE trial

Regorafenib has anti-tumor activity in patients with unresectable hepatocellular carcinoma (uHCC) with potential immunomodulatory effects, suggesting that its combination with immune checkpoint inhibitor may have clinically meaningful benefits in patients with uHCC. The multicenter, single-arm, phase 2 RENOBATE trial tested regorafenib–nivolumab as front-line treatment for uHCC. Forty-two patients received nivolumab 480 mg every 4 weeks and regorafenib 80 mg daily (3-weeks-on/1-week-off schedule). The primary endpoint was the investigator-assessed objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. The secondary endpoints included safety, progression-free survival (PFS) and overall survival (OS). ORR per RECIST version 1.1 was 31.0%, meeting the primary endpoint. The most common adverse events were palmar-plantar erythrodysesthesia syndrome (38.1%), alopecia (26.2%) and skin rash (23.8%). Median PFS was 7.38 months. The 1-year OS rate was 80.5%, and the median OS was not reached. Exploratory single-cell RNA sequencing analyses of peripheral blood mononuclear cells showed that long-term responders exhibited T cell receptor repertoire diversification, enrichment of genes representing immunotherapy responsiveness in MKI67+ proliferating CD8+ T cells and a higher probability of M1-directed monocyte polarization. Our data support further clinical development of the regorafenib–nivolumab combination as front-line treatment for uHCC and provide preliminary insights on immune biomarkers of response. ClinicalTrials.gov identifier: NCT04310709.

Safety Profile and Adverse Event Management for Futibatinib, An Irreversible FGFR1-4 Inhibitor: Pooled Safety Analysis of 469 Patients.

Futibatinib, a covalently-binding inhibitor of fibroblast growth factor receptor (FGFR)1-4 gained approval for the treatment of refractory, advanced intrahepatic cholangiocarcinoma (iCCA) harboring an FGFR2 fusion/other rearrangement. An integrated analysis was performed to evaluate safety and provide guidance on the management of futibatinib-associated adverse events (AEs) in patients with unresectable/metastatic tumors, including iCCA. Data from three global phase I or II studies of futibatinib (NCT02052778; JapicCTI-142552) were pooled. AEs were graded per NCI CTCAE v4.03, where applicable. Safety was analyzed for patients receiving any futibatinib starting dose (overall population) and in those receiving the approved starting dose of 20 mg once every day. In total, 469 patients with one of 33 known tumor types were analyzed, including 318 patients who received futibatinib 20 mg every day. AEs of clinical interest (AECI; any grade/grade ≥3) in the overall population included hyperphosphatemia (82%/19%), nail disorders (27%/1%), hepatic AEs (27%/11%), stomatitis (19%/3%), palmar-plantar erythrodysesthesia syndrome (PPES; 13%/3%), rash (9%/0%), retinal disorders (8%/0%), and cataract (4%/1%). Median time to onset of grade ≥3 AECIs ranged from 9 days (hyperphosphatemia) to 125 days (cataract). Grade ≥3 hyperphosphatemia, hepatic AEs, PPES, and nail disorders resolved to grade ≤2 within a median of 7, 7, 8, and 28 days, respectively. Discontinuations due to treatment-related AEs were rare (2%), and no treatment-related deaths occurred. AE management included phosphate-lowering medication and dose adjustments. Futibatinib showed a consistent and manageable safety profile across patients with various tumor types. AECIs were mostly reversible with appropriate clinical management.

Efficacy and safety results of FGFR1-3 inhibitor, tinengotinib, as monotherapy in patients with advanced, metastatic cholangiocarcinoma: Results from phase II clinical trial.

434 Background: Tinengotinib is a spectrum-selective multi-kinase inhibitor with unique binding properties to FGFR, potently inhibited FGFR2 fusion/rearrangement and acquired resistant mutations in pre-clinical models and in phase I trials that included cholangiocarcinoma (CCA) patients (pts). Here we present the efficacy and safety of tinengotinib in a phase II clinical trial. Methods: Eligible pts with advanced/metastatic CCA who had received ≥ 1 prior systemic chemotherapy therapy and ECOG PS 0 or 1 were treated with tinengotinib 10 mg QD. Four cohorts included: Cohort A1: FGFR2 fusion(s) with primary progression on previous FGFR inhibitor ( FGFRi), A2: FGFR2 fusion(s) with progression after prior response to FGFRi (acquired resistance); B: non-fusion FGFR alteration(s): C: FGFR wild-type ( FGFRwt). Primary endpoint was objective response rate (ORR) per RECIST v1.1. CTCAE V5.0 was used for safety assessments. Results: As of 7Aug2023, 48 pts with CCA were enrolled, 13 in Cohort A1, 10 in A2, 12 in B, 13 in C. Median age 61.5 [range 25-81] years old, 41.7% male, 58.3% had ≥ 3 lines of prior therapy. ECOG PS 0 in 47.9% pts. Among 35 pts with FGFR alterations, 80.0% had ≥ 1 prior FGFRi therapy, and 97.1% had prior chemotherapy. Forty (40) pts were efficacy evaluable. In A1, 1 out of 11 pts (9.1%) achieved PR with tumor reduction of 31.8%. In A2, 3 out of 8 pts (37.5%) achieved PR with tumor reduction of 40.7%, 47.0% and 54.6%. In B, 3 out of 9 pts (33.3%) achieved PR with tumor reduction of 36.5%, 48.6%, and 60.6%. No PR was observed in C. Overall DCR was 94.7% (18/19) in FGFR2 fusion/rearrangement pts (A1+A2), 88.9% (8/9) in other FGFR alterations pts (B), and 75% (9/12) in FGFRwt pts (C). Median progression-free survival (mPFS) was 5.26 months (95%CI, 2.86-9.10) in A1+A2, 5.98 months (95%CI, 1.87-NA) in B and 3.84 months (95% CI, 1.84-4.80) in C. Among 48 treated pts, treatment-related AEs (TRAEs) occurred in 45 (93.8%) pts, 14 (29.2%) in G1-2, 29 (60.4%) in G3 and 2 (4.2%) in G4. The most common G3 TRAEs were hypertension in 12 (25%), palmar-plantar erythrodysesthesia syndrome in 3 (6.3%), diarrhea in 3 (6.3%) and stomatitis in 3 (6.3%). One subject had G4 increased TSH and G4 increased lipase, and another subject had G4 posterior reversible encephalopathy syndrome. No G5 TRAE was observed. Conclusions: Tinengotinib has promising clinical benefit for FGFR2 fusion CCA after prior FGFRi and for non-fusion FGFR alterations. Tinengotinib-related toxicities were manageable. An ongoing randomized, controlled phase III study will evaluate the clinical efficacy, safety, and pharmacodynamic effect of Tinengotinib vs Physicians’ choice in subjects with FGFR2-altered refractory/relapsed CCA after prior chemotherapy and FGFRi therapy. Clinical trial information: NCT04919642 .

Tinengotinib (TT-00420) in combination with atezolizumab in Chinese patients (pts) with biliary tract carcinoma (BTC): Preliminary efficacy and safety results from a phase Ib/II study.

473 Background: Programmed Cell Death Ligand 1 (PD-L1) inhibitor durvalumab in combination with gemcitabine and cisplatin has been approved as first-line therapy for BTC. However, the efficacy of subsequent standard of care is limited. Tinengotinib is a spectrum-selective multi-kinase inhibitor that targets cell proliferation, angiogenesis, and immune-oncology pathways by inhibiting Aurora kinases A/B, Janus kinases and receptor tyrosine kinases (FGFRs and VEGFRs). Tinengotinib combined with PD-L1 has demonstrated promising antineoplastic activity in preclinical study. Here we present the preliminary data of tinengotinib in combination with atezolizumab (atezo) in pts with advanced BTC from a phase Ib/II trial in China. Methods: In combination therapy, eligible pts with advanced/metastatic BTC were enrolled and treated with tinengotinib plus atezo 1200 mg/20 mL in 21-day cycle. Dose escalation (Phase Ib) and dose expansion (Phase II) were designed. Dose escalation followed a standard 3+3 design. Primary objectives in phase Ib were safety, tolerability, and determination of the maximum tolerated dose (MTD) and recommended phase 2 dose (RP2D). Results: As of 17-Aug-2023, six pts (5 cholangiocarcinoma, 1 gallbladder carcinoma) were enrolled and treated with tinengotinib 8 mg QD plus atezo (n=3) or tinengotinib 10 mg QD plus atezo (n=3). Median age was 62.0 years (range 47-75), 83.3% had ECOG performance status of 1, 83.3% had stage IV disease, 50% had ≥ 3 lines of prior antineoplastic therapies, and 50% had prior immunotherapy. No DLT was observed in these two dose levels. Treatment-related adverse events (TRAEs) were reported in 6 (100%) pts, including Grade (Gr)1-2 for 6 pts, Gr 3 in 2 pts. No Gr 4-5 TRAE. The most common TRAEs (≥ 50%) included hypertension, palmar-plantar erythrodysesthesia syndrome, blood bilirubin increased, proteinuria, hypertriglyceridemia and platelet count decreased. Two pts achieved partial response (PR). One prior immunotherapy naïve pt had a tumor reduction of 48.0% lasting for more than 5 months (tinengotinib 8 mg QD plus atezo). Another pt with prior immunotherapy (sintilimab), target therapy (donafenib) and chemotherapy had a tumor reduction of 39.1% (tinengotinib 10 mg QD plus atezo). Three pts had stable disease (SD). Conclusions: Tinengotinib in combination with atezo was well-tolerated for the treatment of Chinese BTC pts. Preliminary encouraging efficacy of tinengotinib in combination with atezo was observed in pts with heavily pre-treated BTC. The ongoing study is to further evaluate the safety and efficacy of tinengotinib in combination with atezo in pts with BTC who had prior immunotherapy and/or chemotherapy. Clinical trial information: NCT05253053 .

Patient-reported outcomes (PROs) <65 or ≥ 65 years old (yo) from CARES-310 camrelizumab + rivoceranib vs sorafenib as first-line treatment for patients with unresectable hepatocellular carcinoma (uHCC).

456 Background: CARES-310 (NCT03764293) evaluated the combination of the anti-PD-1 inhibitor, camrelizumab (cam), and the VEGFR-2 tyrosine kinase inhibitor, rivoceranib (rivo), compared to sorafenib (sor) for the treatment of uHCC. Cam + rivo significantly improved OS and PFS compared to sor (OS, 22.1 months [mo] [95% CI 19.1-27.2] vs 15.2 mo [13.0-18.5] HR 0.62 [95% CI 0.49-0.80]; one-sided p<0.0001); PFS, 5.6 mo [95% CI 5.5-6.3] vs 3.7 mo [2.8-3.7]; HR 0.52 [95% CI 0.41-0.65]; one-sided p<0.0001). The most common (≥20%) grade ≥3 treatment-related adverse events for cam + rivo were hypertension (37.5%) and increased AST (16.5%) vs palmar-plantar erythrodysesthesia syndrome (15.2%) for sor. This analysis evaluated PROs stratified by age: <65 yo (baseline, overall cam + rivo n=191, sor n=210) or ≥65 yo (baseline, overall cam + rivo n=81, sor n=61). Methods: Patients completed EORTC QLQ-C30 and EORTC QLQ-HCC18 at baseline, each visit, and post-last-dose follow-up periods. Endpoints included time to deterioration (TTD) with a ≥10-point decrease from baseline of patient reported QoL, physical functioning, role functioning, and patient-reported symptoms. Results: Mean completion rates across questionnaires were 98.56% and 96.78% for cam + rivo and 98.91% and 98.75% for sor in the <65 and ≥65 yo groups, respectively, from baseline through ≥121 weeks of treatment. In the <65 yo group, cam + rivo vs sor had improved TTD in fatigue measured by EROTC-QLQ-C30. In the ≥65 yo group, cam + rivo had significantly longer median TTD of pain measured by EROTC-QLQ-HCC18 and QLQ-C30, respectively. The median TTD of appetite loss in the ≥65 yo group favored cam + rivo. Median TTD for jaundice was significant for sor in both <65 yo and ≥65 yo group. Median GHS/HRQoL in the ≥65 yo group favored cam + rivo. Conclusions: Cam + rivo was associated with improvement in varied QoL aspects in both patient groups. These PRO results support the clinical benefit and use of cam + rivo in patients with uHCC who have not received prior systemic therapy. Clinical trial information: NCT03764293 . [Table: see text]

Results of the safety and tolerability of ivaltinostat plus capecitabine in the phase 1b portion of a phase 1b/2, dose-escalation, randomized, multi-center study in the maintenance (maint) setting in patients with metastatic pancreatic adenocarcinoma (mPDAC).

666 Background: The standard of care for patient (pts) with advanced or mPDAC typically consists of mFOLFIRINOX or gemcitabine/nab-paclitaxel used in the front-line setting until disease progression (prog) or toxicity. A tolerable maint therapy (tx) that can effectively delay disease prog while preserving quality of life with minimal cumulative toxicity is highly desirable. There is no standard main tx. Ivaltinostat (ival) is a pan-HDAC (histone deacetylation) inhibitor that increases histone acetylation (HA), suppresses PDAC cell proliferation, and promotes apoptosis in PDAC cell lines. Preclinical data demonstrated synergy with 5-FU/capecitabine in mouse models. The phase 1b study will determine an optimal combination of ival and cape followed by a randomized P2 trial of ival plus cape vs cape alone in the maint setting for pts with mPDAC who have not progressed on front-line mFOLFIRINOX. Methods: Key eligibility criteria for P1b include: locally advanced or mPDAC; at least 1 prior line of tx regardless disease prog; ECOG PS 0-1; and no known gBRCA1/2 mutation. Dose-limiting toxicities (DLT) in 3 dose levels of ival, (60, 125, and 250mg/m2 iv weekly on days 1 and 8) in combination with cape (1000mg/m2 po BID on days 1-14) of a 21-day cycle will be evaluated. The primary objective is to evaluate the safety, tolerability and determine the recommended phase 2 dose (RP2D) as well as pharmacokinetics (PK) of ival and cape. Results: As of the date of data-cut, 32 pts had been enrolled at the 60 (7 pts), 125 (14 pts) and 250 (11 pts) mg/m2 dose level, 8 were screen failures and 9 still ongoing with a goal of at least 6 DLT-evaluable pts per dose level. Average prior lines of tx was 3.6 (range 1-5). The median age was 68 (range 51-83) and 21(66%) were males. No DLTs were observed across the 3 dose levels. SAEs occurred in 2 pts that were not related to study drugs. Both ival and cape-related TEAEs were similar except palmar-plantar erythrodysesthesia syndrome (PPES) 9(28%) attributed to cape; fatigue, diarrhea and nausea were the only TEAEs occurred >15%. Two pts had ³grade 3 diarrhea, another pt had cape-related PPES. The TEAE profile was similar across the dose levels. At the time of data-cut there were 6 deaths among pts who discontinued study due to prog. Among 15 pts who had been evaluated for response since baseline, the best ORR were 11 SD(73.3%), 1(6.7%) no RECIST-measurable evidence of disease and 3 PD(20%). PK evaluations for ival indicated dose proportionate increases. The trend of PK observed in this study was similar to the PK trend observed in previous studies. Conclusions: Combination therapy of ival with cape has been well tolerated and the safety and PK/PD data support a RP2D of ival of 250 mg/m2. Clinical trial information: NCT05249101 .

Characterization and Management of Adverse Reactions in Patients With Unresectable Hepatocellular Carcinoma Treated With Lenvatinib.

Advanced practice providers (APPs) play a vital role in monitoring for and managing adverse reactions (ARs). As lenvatinib ARs can resemble cirrhosis (commonly presenting with hepatocellular carcinoma [HCC]), APP input is important for timely detection and management of ARs and to promote medication adherence. The goal of this post-hoc analysis of the REFLECT trial was to characterize key ARs associated with lenvatinib, and to discuss management strategies. In REFLECT, patients with unresectable HCC were randomized to either daily lenvatinib (12 mg/day for patients who weighed ≥ 60 kg or 8 mg/day for those < 60 kg) or sorafenib 400 mg twice daily. Adverse events in the lenvatinib arm were grouped into ARs (hypertension, fatigue, palmar-plantar erythrodysesthesia syndrome, proteinuria, and decreased appetite) per the United States Prescribing Information (USPI) for lenvatinib. Key ARs in the lenvatinib arm (n = 476) generally occurred within months of starting lenvatinib. Some cases of proteinuria, decreased appetite, and diarrhea were first reported at about 2 years of treatment. The onset of key ARs associated with lenvatinib treatment can be predicted and generally be managed (per the lenvatinib USPI and REFLECT) by withholding lenvatinib and resuming it at a reduced dose after the severity decreases. However, lenvatinib should generally be discontinued if the AR is life-threatening.

Characterization and Management of Adverse Reactions in Patients With Advanced Endometrial Cancer Receiving Lenvatinib Plus Pembrolizumab.

Lenvatinib plus pembrolizumab significantly improved efficacy compared with chemotherapy in patients with advanced endometrial cancer (aEC) regardless of microsatellite instability status or histologic subtype, who had disease progression following prior platinum-based therapy, in Study-309/KEYNOTE-775. The safety profile of the combination was generally consistent with that of each monotherapy drug and of the combination in patients with endometrial cancer and other solid tumors. Given the medical complexity of patients with aEC, this paper aims to characterize key adverse reactions (ARs) of the combination treatment and review management strategies, providing a guide for AR management to maximize anticancer benefits and minimize treatment discontinuation. In Study-309/KEYNOTE-775, patients received lenvatinib (20 mg orally once daily) plus pembrolizumab (200 mg intravenously every 3 weeks) or chemotherapy (doxorubicin or paclitaxel). The incidence and median time to the first onset of ARs, dose modifications, and concomitant medications are described. Key ARs characterized include hypothyroidism, hypertension, fatigue, diarrhea, musculoskeletal disorders, nausea, decreased appetite, vomiting, stomatitis, weight decreased, proteinuria, and palmar-plantar erythrodysesthesia syndrome. As expected, the most common any-grade key ARs included: hypothyroidism, hypertension, fatigue, diarrhea, and musculoskeletal disorders. Grades 3-4 key ARs with incidence ≥10% included: hypertension, fatigue, and weight decreased. Key ARs first occurred within approximately 3 months of treatment initiation. AR management strategies consistent with the prescribing information and the study protocol are discussed. Successful AR management strategies for lenvatinib plus pembrolizumab include education of the patient and entire treatment team, preventative measures and close monitoring, and judicious use of dose modifications and concomitant medications. NCT03517449.

A phase 1b study of E7386, a CREB-binding protein (CBP)/β-catenin interaction inhibitor, in combination with lenvatinib in patients with advanced hepatocellular carcinoma.

4075 Background: E7386, a novel oral anticancer agent, inhibits β-catenin binding to its transcriptional co-activator, CBP, thus modulating Wnt/β-catenin signaling. The objectives of the dose-escalation part in this phase 1b study were to assess safety, tolerability, pharmacokinetics (PK), biomarkers, and preliminary efficacy of E7386 combined with lenvatinib in patients with advanced hepatocellular carcinoma (HCC) or other solid tumors. Here, we present the results from the HCC subpart. Methods: In cycle 0, E7386 was administered orally in escalating doses once daily (QD) or twice daily (BID) for 5 or 6 consecutive days. From cycle 1 day 1, E7386 QD or BID, combined with daily oral lenvatinib (8 mg in patients with body weight of &lt;60 kg or 12 mg in patients with body weight ≥60 kg), were administered on a continuous schedule in 28-day cycles in the HCC subpart. Adverse events (AEs) were graded using CTCAE v5.0. Prophylactic antiemetics were not allowed during the dose-limiting toxicities (DLT) evaluation period but were permitted after the occurrence of nausea and vomiting. Tumor response was assessed by investigators using mRECIST (Lencioni and Llovet, 2010). PK and biomarker analyses were conducted using samples collected at defined time points. Results: As of the cutoff date (9 December 2022), 25 patients had been treated in the HCC subpart with E7386 dose ranges from 10 to 80 mg QD and from 60 to 120 mg BID. Among 3 patients in the E7386 120 mg BID cohort, grade 3 maculopapular rash (in 1 patient) and grade 5 acute kidney injury (in 1 patient) DLTs were observed. No DLTs were observed in other cohorts. The most common treatment-emergent AEs (TEAEs; any grade) across all cohorts were nausea (n=19; 76.0%), vomiting (n=15; 60.0%), constipation (n=13; 52.0%), palmar-plantar erythrodysesthesia syndrome (n=12; 48.0%), diarrhea (n=11; 44.0%), and proteinuria (n=10; 40.0%). The most common grade ≥3 TEAEs (≥5% of patients) were proteinuria (n=5; 20.0%) and aspartate aminotransferase level increased (n=2; 8.0%). Nausea and vomiting were well controlled by a 5HT3 antagonist. Among the 25 treated patients, 9 (36.0%) partial responses (PRs) were observed, including 3 PRs in 10 patients who had received lenvatinib as a prior regimen. Cmax and AUC for E7386 increased with increasing E7386 dose. Conclusions: E7386 100 mg BID, in combination with lenvatinib (8 or 12 mg based on bodyweight) QD, was determined as the recommended phase 2 dose, and was deemed tolerable and manageable with antiemetic administration. The combination showed promising activity in patients with HCC, including those pretreated with lenvatinib. Clinical trial information: NCT04008797 .

Preliminary safety and efficacy of tinengotinib tablets as monotherapy and combination therapy in advanced solid tumors: A phase Ib/II clinical trial.

3019 Background: Tinengotinib is a spectrum-selective multi-kinase inhibitor that targets cell proliferation, angiogenesis, and immune-oncology pathways by inhibiting Aurora kinases A/B, Janus kinases (JAK), and receptor tyrosine kinases (FGFRs, VEGFRs). Tinengotinib has shown preliminary efficacy in prostate cancer (PC), hormone receptor positive (HR+)/human epidermal growth factor receptor 2 negative (HER2-) breast cancer (BC), triple-negative BC (TNBC) and cholangiocarcinoma (CCA) in Phase (Ph) 1 trial. Here we present the preliminary safety, pharmacokinetics (PK), and efficacy of tinengotinib in a Ph Ib/II trial. Methods: Eligible patients (pts) with advanced or metastatic solid tumors were assigned to: Arm A (tinengotinib 12 mg QD), Arm B (tinengotinib 8/10/12 mg QD in combination with 100 mg/m2 Abraxane, HER2- BC); Arm C PK Run-in (tinengotinib 5/8/10/12 mg QD, or 4/6 mg BID). Objectives include safety (CTCAE v5.0) and tolerability, PK profile, efficacy (RECIST v1.1) and exploratory biomarker(s). Results: As of 30 Jan 2023, 157 pts with solid tumors were enrolled and treated. In monotherapy (Arm A and Arm C, N=153), median age was 62.5 years (23-83), 56% were female, 69% had ≥ 3 prior lines of therapy. In combination (Arm B, N=4), median age was 40 years (25-46), 100% were female, 100% had ≥3 prior lines of therapy. The treatment-related AEs (TRAE) in monotherapy arms were reported in 110 (71.9%) pts. 53 (34.6%) were Grade (G) 1-2, 55 (35.9%) were G3, 2 (1.3%) were G4, no G5 was observed; the most common TRAEs were hypertension (29.4%), stomatitis (20.9%), diarrhea (16.3%), nausea (13.7%) and palmar-plantar erythrodysesthesia syndrome (12.4%). In the combination arm, 4 treated pts at dose level 1 experienced G3 TRAEs, and the most common TRAEs were neutropenia (75%), stomatitis (50%), hyponatremia (50%), hypokalemia (50%) and hypertension (50%). In 108 efficacy-evaluable pts of monotherapy arms, the overall response rate (ORR) and disease control rate (DCR) were 16% and 60%, respectively. The ORR in PC, HR+/HER2- BC, TNBC and CCA were 50% (5/10), 40% (2/5), 50% (3/6) and 20% (3/15), respectively. Preliminary PK analysis showed a linear increase on exposure in terms of geometric mean Cmax,ss and AUC0-24h,ss from 5 mg QD to 12 mg QD. No significant difference in exposure was observed in QD vs BID. Conclusions: Tinengotinib monotherapy was well-tolerated. The tolerability assessment in combination with chemotherapy is underway. The PK results may support dose recommendation for subsequent trials. Encouraging anticancer activity of tinengotinib monotherapy were observed in pts with heavily pre-treated solid tumors, including PC, HR+/HER2- BC, TNBC and CCA. The ongoing Ph II study of tinengotinib continues to evaluate clinical benefit and safety in pts with PC. Clinical trial information: NCT04742959 .

A phase 2 study of HMPL-453, a selective FGFR tyrosine kinase inhibitor (TKI), in patients with previously treated advanced cholangiocarcinoma containing FGFR2 fusions.

e16118 Background: Patients (pts) with advanced cholangiocarcinoma (CCA) who progressed on or after 1L chemotherapy have few treatment options. FGFR2 fusions or rearrangements occur in 10–16% of pts in global and 6.14% in Chinese pts with intrahepatic cholangiocarcinoma (iCCA), and may predict tumor susceptibility to FGFR inhibitors. HMPL-453 is a novel, selective tyrosine kinase inhibitor against FGFR1, 2, and 3. Here, we report results from an open-label, multi-cohort, single-arm phase 2 study (NCT04353375). Methods: Pts with histologically or cytologically confirmed locally advanced or metastatic iCCA with FGFR2 fusions who were treated at least one previous line of systemic therapy were eligible and included in this analysis. They received 21-day cycles of HMPL-453 orally with 150 mg (QD, cohort 1) or 300 mg (QD, 2w on/1w off, cohort 2) until disease progression or unacceptable toxicity. The primary endpoint was objective response rate (ORR) per RECIST 1.1. Results: At data cutoff (Sep 21, 2022), a total of 25 iCCA pts (12 in cohort 1, 13 in cohort 2) were enrolled and treated with HMPL-453. Median age was 51 yrs (range 28-76) and 12 (48%) were male. All pts had received ≥1 prior treatment line and 21 (84%) had received previous gemcitabine-based chemotherapy. The median follow-up duration was 12 months (mos) and 4.1 mos for cohort 1 and cohort 2, respectively. Of 22 evaluable pts (12 in cohort 1 and 10 in cohort 2) who had at least one post-baseline tumor assessment, the best overall response by investigator assessment was confirmed partial response in seven (31.8%) pts and stable disease in an additional 12 pts (54.5%), resulting in a disease control rate (DCR) of 86.4%. Specifically, in cohort 2 the confirmed ORR was 50% (95% CI, 18.7%–81.3%) and DCR was 90% (95% CI, 55.5%–99.7%). Duration of response was not reached in either cohort. Median progression-free survival was 5.7 (95% CI, 2.6, NR) mos in cohort 1 and not yet mature in cohort 2. Of all pts, 23 (92%) experienced ≥1 treatment-related adverse events (TRAEs). The most common TRAEs (any grade) were diarrhea (56%), dry mouth (44%), and blood phosphorus increased (44%). The common Gr ≥3 TRAEs (≥5% pts) were decreased neutrophil count (8%), nail toxicity (8%) and palmar-plantar erythrodysesthesia syndrome (8%). Compared to cohort 1, pts in cohort 2 experienced a lower incidence of Gr ≥3 TRAEs (23.1% vs 58.3%), less dose interruption/reduction (32.0% vs 41.7%) and less treatment discontinuation (0.0% vs 16.7%) due to TRAE. Based on the better safety profile and preliminary efficacy, 300mg, QD, 2w on/1w off was chosen as the recommended phase 2 dose (RP2D). Conclusions: HMPL-453 showed promising efficacy, particularly in RP2D regimen (300 mg, QD, 2w on/1w off) and acceptable toxicity in pts with previously-treated advanced iCCA and FGFR fusions. These results warrant further study in pts with advanced iCCA. Clinical trial information: NCT04353375 .

The safety and efficacy of donafenib combined with anti-PD-1 antibody as adjuvant therapy for patients (pts) with hepatocellular carcinoma (HCC): Updated results of a phase 2 study.

e16202 Background: Adjuvant therapy may have an important role in decreasing recurrence rates and improve survival in selected pts with HCC following surgical resection. However, there is no standard treatment options or strategies. This study aimed to investigate the safety and efficacy of donafenib combined with anti-PD-1 antibody as adjuvant therapy for HCC pts with high risks of recurrence. Methods: This prospective, open-label, single-arm study planned to enroll 30 pts who had undergone radical surgery and were diagnosed as HCC confirmed by histology or cytology with any of the following risk factors: a) Microvascular invasion (MVI); b) Satellite nodules in specimens; c) &gt;3 tumor nodules; d) Portal vein tumor thrombosis (excluded main portal vein invasion). Donafenib combined with anti-PD-1 antibody was initiated at 4 to 8 weeks after surgical resection and continued for up to six months. The primary endpoint was the cumulative 1-year recurrence-free survival rate (RFSR). The secondary endpoints were recurrence-free survival (RFS), overall survival, and safety. Results: As of December 31st, 2022, a total of 23 pts received donafenib plus anti-PD-1 antibody (toripalimab) with a mean follow-up of 7.6 months (safety set). The most common risk factor was MVI (91%). 20 pts were included in efficacy set (three pts were excluded due to ineligibility), of whom 16 pts had one risk factor and four had two. Intrahepatic recurrence occurred in 3 pts (15%) and no extrahepatic metastasis or death was reported. The RFSR at one year was 83.0% (90%CI, 61.6%-93.1%) in all the pts from efficacy set, 81.9% (90%CI, 59.6%-92.6%) and 92.3% (90%CI, 66.0%-98.5%) in pts with MVI and MVI-low risk, and 85.1% (90%CI, 59.6%-95.1%) in pts with only one risk factor. The median RFS was not reached. The incidence of grade 3 adverse events related to donafenib and/or toripalimab was 52.2% (12/23). No pts had grade 4/5 adverse events. Adverse events leading to withdrawal of any and both treatments occurred in six (26.1%) and one (4.3%) pts, respectively. The most common grade 3 treatment-related adverse events (occurred in more than one patient) were palmar-plantar erythrodysesthesia syndrome (17.4%), rash (17.4%), alanine aminotransferase increased (13.0%), and aspartate aminotransferase increased (8.7%). Conclusions: These results were consistent with earlier reports. The combination of donafenib and toripalimab may be a promising adjuvant therapy for pts with MVI, satellite nodules or multiple tumor after hepatectomy. No safety issues were noted. Clinical trial information: NCT04418401 . [Table: see text]

CASSIOPE: A prospective noninterventional study of cabozantinib treatment following prior vascular endothelial growth factor (VEGF) -targeted therapy in patients with advanced renal cell carcinoma (aRCC).

4529 Background: Cabozantinib is a tyrosine kinase inhibitor approved as monotherapy for aRCC in the USA, and as first-line therapy for patients with intermediate or poor risk aRCC, or after previous VEGF-targeted therapy in Europe. In the METEOR trial, a substantial proportion of patients required cabozantinib dose modifications. We report a real-world study of cabozantinib use for aRCC. Methods: CASSIOPE was a non-interventional prospective cohort study (conducted Apr 2018–May 2022; NCT03419572). Enrollment spanned 11 European countries (91 sites) where cabozantinib is marketed for aRCC. Patients had aRCC and had received ≥ 1 prior VEGF-targeted therapy (excluding cabozantinib). Decision to initiate cabozantinib was made prior to enrolment. The primary endpoint was cabozantinib usage (dose interruptions, reductions or discontinuations due to AEs) in the second- (2L) or later- (≥ 3L) line settings. Secondary endpoints included objective response rate (ORR), progression-free survival (PFS), overall survival (OS) and tolerability. Data were analyzed descriptively for patients with safety follow-up after ≥ 1 cabozantinib dose. Results: In total, 679 patients were included (73.0% male; median [range] age 67.0 [29–93] yrs; 85.7% clear-cell aRCC; 80.3% prior nephrectomy). Median (range) observation period was similar for 2L (n = 335; 8.51 [0.2–15.4] mo) and ≥ 3L cabozantinib (n = 343; 9.26 [0.0–15.0] mo). Usage data are shown. For the overall population, ORR (95% CI) and median (95% CI) PFS according to local assessment were 21.9% (17.5%–26.9%) and 7.8 (6.3–8.7) mo for 2L cabozantinib, and 38.0% (32.7%–43.5%) and 8.7 (7.6–9.6) mo for ≥ 3L cabozantinib. Median OS (95% CI) was 13.0 (12.6–not calculated [NC]) mo for 2L, and 17.1 (13.8–NC) mo for ≥ 3L cabozantinib. Most patients (90.4%) reported treatment-related AEs (Grade 1, 71.1%; Grade 2, 70.3% of patients), most commonly any grade diarrhea (52.4%), palmar-plantar erythrodysesthesia syndrome (27.2%), decreased appetite (25.5%), hypertension (21.9%), asthenia (21.6%), fatigue (20.5%) and nausea (20.3%). Conclusions: In this real-world study, tolerability of ≥ 2L cabozantinib was consistent with the METEOR trial safety profile: cabozantinib dose modifications due to AEs were common, but discontinuation rates due to AEs were substantially less frequent. Cabozantinib activity was maintained across lines. Clinical trial information: NCT03419572 . [Table: see text]

Phase I/II study to evaluate penpulimab combined with anlotinib and epirubicin in the first-line treatment of soft tissue sarcoma: Updated.

11569 Background: Anthracycline-based chemotherapy regimens are the cornerstone of first-line treatment of recurrent/metastatic unresectable soft tissue sarcoma(STS)，while the efficacy was not satisfactory (the median PFS: 4-8 months). Anti -angiogenesis TKI hypothetically can improve the efficacy of chemotherapy by remodeling the immunosuppressive TME. We conducted this trial to explore the safety and efficacy of PD-1 antibody Penpulimab(P) plus anlotinib(A) and epirubicin(E) in the first-line treatment of STS. The results of the phase I study were reported (2022 ESMO), We updated the latest efficacy and safety data. Methods: This ongoing phase I/II, open-lable trial (ChiCTR2100048014) enrolled patients (pts) aged 16-75 years old with pathologically confirmed metastatic or unresectable locally advanced STS. Pathologic types are moderately sensitive or above to anthracycline chemotherapy. Pts who met the inclusion criteria were treated with phase I dose results (E 60 mg/m2 + A 10 mg and P 200 mg；E: IV, D1-3, Q3W, A: PO, QD, D1-14, Q3W, P: IV, Q3W ) for a total of 6 treatment cycles (3 weeks each). A+P was maintained for 2 years until progressive disease or unacceptable toxicity. The primary endpoint was PFS(progression-free survival ) and secondary endpoints were ORR(objective response rate), DCR(disease control), OS(overall survival), 2-year OS and PFSR at 3 and 6 months. The response to treatment was evaluated according to RECIST vesion 1.1. In addition,adverse events were evaluated by CTCAE v5.0. Results: From September 2021 to December 2022, 32 pts (14 males and 18 females) were enrolled with the median age is 53.5 (range 29-73) years old. Pathological types included liposarcoma (DDLPS 14, PLS 1, n = 15), undifferentiated sarcoma (n = 4), leiomyosarcoma (n = 5), angiosarcoma (n = 3), fibrosarcoma (n = 2), and others (n = 3). At the data cut off date on December 20, 2022, Median follow-up time was 3.5 months （range 0.03-15.38）, Median PFS was 10.55 months [95%CI 4.60, 14.59]. Median OS was not reached. The PFS at 3 months and 6 months was 86.76%, 68.16%, respectively. and the OS at 12 months was 92.64%. 24 pts were eligible for the evaluation of tumor response, the objective response rate (ORR) was 12.50% (4/24) and the disease control rate (DCR) was 68.75% (14/24). The incidence of treatment-related adverse events of grade 3 was 31.25%, with a higher incidence of hypertriglyceridemia (9.38%), Neutrophil count decreased (6.25%) , palmar-plantar erythrodysesthesia syndrome (6.25%), febrile neutropenia (6.25%), respectively. The incidence of Severity Adverse Event was 12.5%. 50 pts are expected to be enrolled in the study, and the data will be mature after the follow-up is completed. Conclusions: Penpulimab(P) plus anlotinib(A) and epirubicin(E) has shown encouraging activity as firsy-line treatment for STS, which significantly prolong the PFS with well tolerance. Clinical trial information: ChiCTR2100048014 .