scholarly journals INSIGHT 2: a Phase II study of tepotinib plus osimertinib in MET-amplified NSCLC and first-line osimertinib resistance

2021 ◽  
Author(s):  
Egbert F Smit ◽  
Christophe Dooms ◽  
Jo Raskin ◽  
Ernest Nadal ◽  
Lye M Tho ◽  
...  

MET amplification (METamp), a mechanism of acquired resistance to EGFR tyrosine kinase inhibitors, occurs in up to 30% of patients with non-small-cell lung cancer (NSCLC) progressing on first-line osimertinib. Combining osimertinib with a MET inhibitor, such as tepotinib, an oral, highly selective, potent MET tyrosine kinase inhibitor, may overcome METamp-driven resistance. INSIGHT 2 (NCT03940703), an international, open-label, multicenter Phase II trial, assesses tepotinib plus osimertinib in patients with advanced/metastatic EGFR-mutant NSCLC and acquired resistance to first-line osimertinib and METamp, determined centrally by fluorescence in situ hybridization (gene copy number ≥5 and/or MET/CEP7 ≥2) at time of progression. Patients will receive tepotinib 500 mg (450 mg active moiety) plus osimertinib 80 mg once-a-day. The primary end point is objective response, and secondary end points include duration of response, progression-free survival, overall survival and safety. Trial registration number: NCT03940703 (clinicaltrials.gov)

Oncotarget ◽  
2016 ◽  
Vol 8 (10) ◽  
pp. 17270-17278 ◽  
Author(s):  
Ewa Szutowicz-Zielińska ◽  
Krzysztof Konopa ◽  
Anna Kowalczyk ◽  
Małgorzata Suszko-Każarnowicz ◽  
Renata Duchnowska ◽  
...  

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16040-e16040
Author(s):  
Lin Shen ◽  
Ming Lu ◽  
Zhendong Chen ◽  
Feng Ye ◽  
Yanqiao Zhang ◽  
...  

e16040 Background: Surufatinib is a novel small-molecule kinase inhibitor targeting VEGFRs, FGFR and CSF-1R, simultaneous targeting of angiogenesis through VEGFRs/FGFR1 and modulating tumor immune microenvironment through CSF-1R may be a uniquely potent strategy to enhance antitumor activity. Toripalimab is a monoclonal humanized IgG4 PD-1 antibody. Encouraging efficacy of surufatinib plus toripalimab treating patients with advanced solid tumors was reported at 2020 AACR. This is an ongoing, multicenter, open-label, single-arm, phase II study to evaluate the efficacy and safety of surufatinib in combination with toripalimab in various solid tumors. Here we report the results of patients with advanced gastric or gastroesophageal junction (GEJ) adenocarcinoma. Methods: Patients with histologically confirmed gastric or GEJ adenocarcinoma who have failed first-line of systemic chemotherapy were enrolled. Surufatinib 250 mg once a day (QD) will be orally administrated and toripalimab 240 mg will be intravenously administered every 3 weeks. Primary endpoint was the objective response rate (ORR) per RECIST v1.1. Results: As of Dec 31, 2020, a total of 21 gastric or GEJ adenocarcinoma patients were enrolled. The median age was 58 years old, and 81% of the patients were male. Median duration of treatment was 3 months (surufatinib, 3 months; toripalimab, 3 months). Among 15 patients with at least one post-baseline efficacy evaluation, 2 patients achieved confirmed partial response (PR), with 3 additional unconfirmed PR. And there were 6 in stable disease (SD), 3 in progressive disease (PD) and one not evaluable per RECIST v1.1. There were 5 in PR, 7 in SD and 2 in PD per irRECIST, respectively. The confirmed and unconfirmed ORR were 13.3% (95% CI: 1.7%-40.5%) and 33.3% (95% CI: 11.8%-61.6%), respectively. The disease control rate (DCR) was 73.3% (95% CI: 44.9%-92.2%) per RECIST v1.1. Median PFS was 3.71 months (95% CI: 1.41-unknown). 14.3% (3/21) of patients had treatment-related adverse events (TRAEs) of ≥ Grade 3. The most common TRAEs of ≥ Grade 3 were herpes zoster (4.8%), lymphopenia (4.8%), lymphocyte count decreased (4.8%), white blood cell count decreased (4.8%), liver injury (4.8%) and anaemia (4.8%). 4.8% (1/21) of patients had serious TRAEs. One patient died due to unknown reasons. Conclusions: Surufatinib plus toripalimab appeared to show encouraging activity in advanced gastric or GEJ adenocarcinoma with manageable safety profile. Such combination could be a promising strategy for advanced gastric or GEJ adenocarcinoma in the future. Clinical trial information: NCT04169672.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16199-e16199
Author(s):  
Lin Shen ◽  
Xianjun Yu ◽  
Ming Lu ◽  
Xing Zhang ◽  
Ying Cheng ◽  
...  

e16199 Background: Patients with advanced neuroendocrine carcinoma (NEC) have a poor prognosis and limited treatment option after first-line treatment. Surufatinib, a multi-kinase inhibitor of VEGFR 1-3, FGFR 1 and CSF-1R, has been approved in patients with advanced or metastatic extra-pancreatic neuroendocrine tumors in China. Toripalimab is a monoclonal humanized IgG4 PD-1 antibody. Surufatinib modulates tumor immune microenvironment and has shown promising antitumor activity in combination with toripalimab in solid tumors, including neuroendocrine tumor and neuroendocrine carcinoma. Herein, we reported the efficacy and safety of surufatinib in combination with toripalimab in a cohort of advanced NEC patients. Methods: The multicenter, open-label, single-arm phase II clinical trial enrolled advanced NEC patients refractory to first-line chemotherapy, and received surufatinib 250 mg once a day orally plus toripalimab 240 mg intravenously on day 1 of a 21-day cycle. The primary end point is objective response rate (ORR) per RECIST 1.1. Results: Twenty-one patients enrolled and received combination therapy. At data cut-off (December 31, 2020), the average treatment cycles were 5.1±3.69 for surufatinib and 5.0±3.68 for toripalimab. Among 20 tumor evaluable patients, 4 patients achieved confirmed PR and 10 patients achieved stable disease. The ORR and disease control rate (DCR) are 20 % (95%CI: 5.7%-43.7%) and 70% (95%CI: 45.7%-88.1%) respectively. The median PFS is 3.94 months (95%CI: 1.31- unknown). OS is not mature till data cut-off. Adverse events (AEs) reported as related to treatment (TRAE) occurred in 100% of patients, of which Grade≥3 TRAEs occurred in 33.3% of patients. The reported Grade≥3 TRAEs were hypertension in 2 (9.5%) patients, and upper abdominal pain, oral mucositis, neutrophil count decreased, leukocyte count decreased, dermatitis, anemia and backache in 1 (4.8%) patient each. Immune related Grade ≥3 AEs, Gamma-glutamyl transpeptidase increased and dermatitis, occurred in 2 (9.5%) patients, respectively. TRAE caused surufatinib or toripalimab interruption occurred in 6 (28.6%) and 4 (19%) patients respectively. There were neither serious AEs nor AEs inducing treatment discontinuations or deaths. Conclusions: As there is no standard second-line treatment, this combination of surufatinib and toripalimab might offer a new promising choice to treat NEC as second-line treatment due to good efficacy and manageable treatment related toxicities. Clinical trial information: NCT04169672.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. TPS3616-TPS3616
Author(s):  
Tanios S. Bekaii-Saab ◽  
Eric Van Cutsem ◽  
Antonio Cubillo ◽  
Caroline Petorin-Lesens ◽  
Nuria Rodriguez-Salas ◽  
...  

TPS3616 Background: METamp is a secondary, or co-driving, genetic change in pts with mCRC and acquired resistance to anti-EGFR therapy, which can contribute to disease progression. In EGFR-resistant pts with mCRC and METamp, MET inhibition + an anti-EGFR agent may achieve disease control by targeting emerging MET pathway activation and maintaining EGFR pathway inhibition. Tepotinib is an oral, once-daily, highly selective, potent MET tyrosine kinase inhibitor (TKI), recently approved in the US for NSCLC harboring MET exon 14 skipping. Tepotinib + gefitinib demonstrated improved outcomes in pts with EGFR-mutant METamp NSCLC and acquired EGFR TKI resistance vs chemotherapy (INSIGHT: NCT01982955). In these pts, progression-free survival (PFS) was 16.6 vs 4.2 months (HR = 0.13; 90% CI: 0.04, 0.43) and overall survival (OS) was 37.3 vs 13.1 months (HR = 0.08; 90% CI: 0.01, 0.51). In pts with mCRC and acquired resistance to anti-EGFR antibody therapy due to METamp, tepotinib + anti-EGFR antibody cetuximab may be active and provide an effective therapeutic option. Methods: This Phase II, multicenter, single-arm, open-label study will assess preliminary safety and tolerability, antitumor activity, and explore pharmacokinetic (PK) profiles of tepotinib + cetuximab in pts with RAS/BRAF wild-type left-sided mCRC and acquired resistance to anti-EGFR antibody-targeted therapy due to METamp (NCT04515394). A safety run-in (6–12 pts) will evaluate the recommended Phase II dose of tepotinib to be used in combination with cetuximab (endpoint: dose-limiting toxicities). Enrollment is based on a confirmed advanced left-sided CRC diagnosis ( RAS/BRAF wild-type), documented previous anti-EGFR therapy and acquired resistance on most recent anti-EGFR antibody and METamp confirmed by liquid and/or tissue biopsy. Pts must be ≥18 years old, have ECOG PS of 0/1 and normal organ function. The study will screen sufficient pts to account for setting-specific heterogenecity in reported METamp incidence. Approximately 42 pts are planned to receive study treatment: ̃22 in Cohort A (second-line, outside US) and 20 in Cohort B (≥third-line, US only). Primary endpoint: investigator-assessed objective response (RECIST 1.1). Secondary endpoints are investigator-assessed duration of response (DoR), PFS (RECIST 1.1) and OS, tolerability and safety (NCI-CTCAE v5.0), and cetuximab immunogenicity (measured by antidrug antibody assays at the start and end of treatment). Additional endpoints include assessment of tepotinib and cetuximab PK profiles, and expression of biomarkers of resistance (from blood and/or tissue samples). Retrospective assessment of best overall response, DoR and PFS by an independent review committee may be conducted. No formal statistical hypothesis will be tested in this exploratory study. Clinical trial information: NCT04515394.


2018 ◽  
Vol 127 (04) ◽  
pp. 240-246 ◽  
Author(s):  
Judit Kocsis ◽  
Éva Szekanecz ◽  
Ali Bassam ◽  
Andrea Uhlyarik ◽  
Zsuzsanna Pápai ◽  
...  

Abstract Background Medullary thyroid cancer (MTC) is a rare disease, the prognosis of advanced and metastatic disease is poor and few therapeutic options are available in this setting. Based on the results of phase II and III studies with sorafenib in differentiated thyroid cancer and the lack of availability of registered tyrosine kinase inhibitors, vandetabin and cabozantinib in Hungary, we designed a uncontrolled, prospective efficacy and safety study of patients with metastatic MTC treated with first-line sorafenib in five Hungarian oncology centers. Methods Ten consecutive patients with progressive or symptomatic metastatic MTC were included and started sorafenib 400  mg twice a day between June 2012 and March 2016. The primary end point was median progression-free survival (mPFS). Secondary endpoints included disease control rate, biochemical response, symptomatic response and toxicity. Results Four patients achieved partial remission (40%) according to RECIST 1.1 evaluation. Five patients had stable disease beyond 12 months (50%) and one patient had progressive disease (10%). Median PFS was 19.1 months. The disease control rate was 90%. Association between radiologic response and biochemical or symptomatic response was inconsistent. Most common side effects were Grade 1-2 fatigue (60%), palmar-plantar erythrodysesthesia, rash/dermatitis 50-50%, alopecia 40%. Conclusions In our prospective case series in patients with MTC first-line sorafenib showed at least similar efficacy as in other small phase II trials and case reports. Based on comparable efficacy with registered tyrosine kinase inhibitors and it’s manageable toxicity profile, we believe that sorafenib has role in the sequential treatment of MTC.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 7171-7171
Author(s):  
L. E. Morrison ◽  
S. S. Jewell ◽  
K. K. Jacobson ◽  
K. Kaiser ◽  
M. Gale ◽  
...  

7171 Background: EGFR, the presumed target of gefitinib and erlotinib, has been studied (expression, gene copy number, & mutations) for predicting response to these tyrosine kinase inhibitors (TKI), in non-small cell lung cancer (NSCLC). ’High polysomy’ and ’amplification’ of the EGFR gene, as defined by Cappuzzo et al. JNCI 97:643, using fluorescence in situ hybridization (FISH), showed significant association with objective response (Resp) and survival. We also measured EGFR and chromosome 7 (C7) copy numbers by FISH in 81 gefitinib-treated NSCLC patients (12 Resp). Using Cappuzzo’s FISH± parameter alone we saw similar trends but no statistical significance in the 81 patient group. Therefore we sought to optimize FISH parameters for these patients. Methods: FISH was performed (paraffin sections) using a 2-color probe set (Vysis LSI EGFR/CEP 7), median 80 cells per specimen. >50 parameters were derived from the data (e.g. mean EGFR/cell, C7/cell etc) and compared, using different threshold values, to Resp and survival. Results: The best single parameter associated with survival was the average C7/cell. Applying upper and lower thresholds of 3.6 and 2.0 C7/cell to delineate moderate from extreme ratios yielded median survival of 177 and 465 d, respectively (Kaplan-Meier, p < .002). A single threshold of 3.6, separating low from high, yielded survival of 201 and 522 d, respectively (p < .01). For these thresholds C7/cell was not associated with Resp, however, thresholds could be found for which both survival and Resp were significant. The best single parameter associated with Resp was average EGFR/cell. Of the 70 patients with EGFR/cell≤6.0, 63 (90%) did not respond while 5 of 11 patients (45%) with EGFR/cell >6.0 responded (p < .01). No EGFR/cell threshold could be found for which both survival and Resp were significant. Many 2-parameter combinations provided significant associations with both survival and Resp. Conclusions: Several FISH-derived parameters were significantly associated with either survival or Resp to gefitinib and a subset were associated with both. These parameters must be tested on independent data sets to determine their value in directing TKI therapy. [Table: see text]


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 7592-7592
Author(s):  
M. J. Fidler ◽  
L. Buckingham ◽  
M. Gale ◽  
J. Coon ◽  
A. Mauer ◽  
...  

7592 Background: Prognostic factors associated with better outcomes (EGFR mutations (mut), high EGFR gene copy number, never smoking) can be used to select pts for EGFR tyrosine kinase inhibitor (TKI) combination trials, but would exclude the majority of NSCLC pts. Excluding pts with the worst likely outcomes is another strategy that may result in more pts who could benefit from the combination of a TKI with other agents. Our objective was to identify clinical and molecular characteristics associated with RPD (=70 days) and shorter progression-free survival (PFS) in previously treated NSCLC pts receiving G. Methods: Consecutive Expanded Access Trial pts with >1 week G were included for analysis. Tissue from 87 pts was evaluated for EGFR, pAKT and PTEN protein expression by immunohistochemistry; 58 tumors were analyzed for mut and sum of CA dinucliotide repeats (ΣCA rpts) by SSCP, PCR and sequencing. Results: There were 150 pts; 77 female, median (md) age 67. Md follow-up was 5.8 months (mo). Objective response was 8% (2CR, 10PR, 56 SD, 82 RPD). Md Kaplan-Meier PFS and survival were 2.0 and 5.8 mo, respectively. See table for univariate results. Smoking, Mut-PTEN-, EGFR-PTEN- and EGFR-pAKT- tumors were associated with shorter PFS. Separate clinical and molecular multivariate models were developed. In logistic regressions, non-adenocarcinoma histology (N- A), p=0.004, =12 mo from diagnosis to G (dx-G =12 mo), p=0.0009, lack of mut (p=0.0298) and ΣCA rpts <34 (p=0.0622) were associated with RPD. In Cox regressions, N-A (p=0.0256), dx-G =12 mo (p=0.0166) and lack of mut (p=0.0298) were associated with shorter PFS. Conclusions: N-A, dx-G =12 mo and lack of mut were associated with RPD and shorter PFS in univariate and multivariate analyses. ΣCA rpts <34 and double-negative molecular combinations were also related to worse outcome. These clinical and molecular characteristics may warrant further study as exclusion criteria for TKI combination clinical trials. [Table: see text] [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 5576-5576
Author(s):  
S. Welch ◽  
H. J. Mackay ◽  
H. Hirte ◽  
G. F. Fleming ◽  
R. Morgan ◽  
...  

5576 Background: Endometrial cancer (EC) is the most common gynecologic malignancy. Vascular endothelial growth factor (VEGF) overexpression in EC correlates with poor outcome, thus targeting VEGF is a rational therapeutic approach. We have conducted a two-stage open-label phase II study in advanced EC with sunitinib, an oral tyrosine kinase inhibitor of multiple VEGF receptors. Methods: Eligible pts have recurrent or metastatic EC and have received up to 1 prior chemotherapy (CT) regimen for metastatic disease. Sunitinib is given at 50 mg daily (OD) for 4 consecutive weeks (wks) followed by 2 wks off. Dose could be reduced to 37.5 mg OD and then 25 mg OD in the setting of toxicity. Imaging is repeated every 12 wks. Primary objectives are objective response rate (ORR by RECIST) and rate of 6-month progression-free survival (PFS). If 1 or more responses occur in the first 15 evaluable pts, the study would continue to a second stage (total = 30 pts). Secondary objectives are time to progression (TTP), overall survival (OS), and safety. Results: We report the results of the first stage of this study. Sixteen pts have been treated (median age: 63; range 41–74) with 37 cycles of sunitinib (median 2; range: 1–7). Baseline ECOG PS was 0 (7 pts), 1 (8 pts), or 2 (1 pt). Histology was endometrioid (7 pts), serous (5 pts), clear cell (1 pt), or mixed/other (3 pts). Most pts had high-grade histology (G3: 8; G2: 4; G1: 2; GX: 2). Nine pts had prior adjuvant CT, 8 pts had 1 prior CT for advanced EC, 4 pts had prior hormones and 7 pts had prior radiotherapy. Partial response was achieved by 2 pts (ORR = 12.5%), and 2 other pts had a best response of stable disease; 3 of these pts remained progression-free > 6 months. Median TTP = 2.5 months (95% CI: 2.47-NR), and median OS = 6.2 months (95% CI: 5.1-NR). Grade 3/4 adverse events (AE) in >10% of pts were fatigue (7 pts, 44%) and hypertension (5 pts, 31%). Dose reduction was required for 11 of 16 pts (69%). Two pts were inevaluable after receiving <2 cycles due to AE (grade 4 hyponatremia; grade 3 fatigue) and 1 other pt has yet to complete 2 cycles. Conclusions: Sunitinib shows preliminary activity in EC. This trial will proceed to a second stage of accrual to further explore the efficacy and safety of sunitinib in advanced EC. [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 6058-6058 ◽  
Author(s):  
G. Nagaiah ◽  
P. Fu ◽  
J. K. Wasman ◽  
M. M. Cooney ◽  
C. Mooney ◽  
...  

6058 Background: Sorafenib (bay 43–9006) is an oral, small molecule tyrosine kinase inhibitor of the raf-1 protein kinase receptor, VEGFR2 and PDGFR-β with antiangiogenic properties. We are conducting an open label, phase II study of sorafenib in patients with biopsy-proven ATC to evaluate if its objective response rate is >20% and to further characterize its safety profile. Methods: Patients with progressive ATC, after cytotoxic chemotherapy with or without radiation were given sorafenib, on a fixed dosing schedule of 400 mg PO bid on 28-day cycles. Treatment was continued until disease progression, unacceptable toxicity or patient refusal. Response was evaluated every 8 weeks with body scans using RECIST criteria. We employed a 2-stage study design: if none of the first 18 patients respond the study is terminated, otherwise accrual is continued to a total of 36 patients at which point if ≤3 of the patients respond, the treatment option is rejected. Results: To date 16 patients (10 male) have enrolled in the study. Median age is 55 years; with (range 28–79). Median time on study is 2 months. Median number of cycles given is 2 (range 1–27). Two of 15 evaluable patients (13%) have partial response (PR) and 4 patients (27%) have stable disease (SD). Median duration of PR/SD is 5.1 months (range 1–24.7months). Median time to progression is 1.5 months. Median duration of survival is 3.5 months (range 1–26 months). All patients at time of reporting are deceased. Most common toxicities are lymphopenia (81%) and fatigue (62%). Grade 3 toxicities include lymphopenia (25%), rash with desquamation, weight loss, and chest pain (all 12%). Grade 4 toxicities include dyspnea (6%) and lymphopenia (6%). There has been no significant cardiovascular toxicity. One patient died on study with rapidly progressive disease. Conclusions: Sorafenib demonstrates objective tumor response in the first 15 evaluable and pretreated patients with advanced ATC. This trial is ongoing and supported in part by NIH grant nos. CA62502. [Table: see text]


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 4032-4032 ◽  
Author(s):  
David Malka ◽  
Laetitia Fartoux ◽  
Vanessa Rousseau ◽  
Tanja Trarbach ◽  
Eveline Boucher ◽  
...  

4032 Background: Gemcitabine-platinum chemotherapy (CTx) regimens are widely accepted as first-line standard of care for patients (pts) with advanced biliary cancers (ABC). EGFR overexpression has been observed in ABC, suggesting that the combination with anti-EGFR monoclonal antibodies may be appropriate. Methods: Patients with ABC, WHO performance status (PS) 0-1, and without prior palliative CTx were eligible for this international, open-label, two-stage, non-comparative, randomized phase II trial. Patients received GEMOX (gemcitabine, 1 g/m² [10 mg/m²/min] at day [D]1 + oxaliplatin, 100 mg/m² at D2, arm A) or GEMOX + cetuximab (500 mg/m² at D1 or 2, arm B), every 2 weeks. The primary endpoint was crude 4-month progression-free survival (PFS) rate (H0, <40%; H1, ≥60%; planned sample size, 100 pts, increased to 150 pts by amendment to allow subgroup analyses). Secondary endpoints were objective response rate (ORR), disease control rate (DCR), PFS, overall survival (OS), and toxicity (NCI-CTC v3.0). Exploratory endpoints included early metabolic response as assessed by PET at 1 month, and tumor KRAS mutational analysis. Results: From Oct. 2007 to Dec. 2009, we enrolled 150 pts (median age, 62 years; male, 57%; metastatic, 79%; cholangiocarcinoma, 84%; median follow-up, 30 months) (Table). Conclusions: GEMOX-cetuximab regimen was well tolerated and met its primary endpoint (4-month PFS ≥60%). However, median PFS and OS were similar in both arms. Exploratory analyses (e.g., KRAS tumor status) are underway to identify pt subgroups deriving benefit from the addition of cetuximab to CTx. [Table: see text]


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