scholarly journals KEYNOTE-022 part 3: a randomized, double-blind, phase 2 study of pembrolizumab, dabrafenib, and trametinib in BRAF-mutant melanoma

2020 ◽  
Vol 8 (2) ◽  
pp. e001806
Author(s):  
Pier Francesco Ferrucci ◽  
Anna Maria Di Giacomo ◽  
Michele Del Vecchio ◽  
Victoria Atkinson ◽  
Henrik Schmidt ◽  
...  

BackgroundIn the KEYNOTE-022 study, pembrolizumab with dabrafenib and trametinib (triplet) improved progression-free survival (PFS) versus placebo with dabrafenib and trametinib (doublet) without reaching statistical significance. Mature results on PFS, duration of response (DOR), and overall survival (OS) are reported.MethodsThe double-blind, phase 2 part of KEYNOTE-022 enrolled patients with previously untreated BRAFV600E/K-mutated advanced melanoma from 22 sites in seven countries. Patients were randomly assigned 1:1 to intravenous pembrolizumab (200 mg every 3 weeks) or placebo plus dabrafenib (150 mg orally two times per day) and trametinib (2 mg orally one time a day). Primary endpoint was PFS. Secondary endpoints were objective response rate, DOR, and OS. Efficacy was assessed in the intention-to-treat population, and safety was assessed in all patients who received at least one dose of study drug. This analysis was not specified in the protocol.ResultsBetween November 30, 2015 and April 24, 2017, 120 patients were randomly assigned to triplet (n=60) or doublet (n=60) therapy. With 36.6 months of follow-up, median PFS was 16.9 months (95% CI 11.3 to 27.9) with triplet and 10.7 months (95% CI 7.2 to 16.8) with doublet (HR 0.53; 95% CI 0.34 to 0.83). With triplet and doublet, respectively, PFS at 24 months was 41.0% (95% CI 27.4% to 54.2%) and 16.3% (95% CI 8.1% to 27.1%); median DOR was 25.1 months (95% CI 14.1 to not reached) and 12.1 months (95% CI 6.0 to 15.7), respectively. Median OS was not reached with triplet and was 26.3 months with doublet (HR 0.64; 95% CI 0.38 to 1.06). With triplet and doublet, respectively, OS at 24 months was 63.0% (95% CI 49.4% to 73.9%) and 51.7% (95% CI 38.4% to 63.4%). Grade 3–5 treatment-related adverse events (TRAEs) occurred in 35 patients (58%, including one death) receiving triplet and 15 patients (25%) receiving doublet.ConclusionIn BRAFV600E/K-mutant advanced melanoma, pembrolizumab plus dabrafenib and trametinib substantially improved PFS, DOR, and OS with a higher incidence of TRAEs. Interpretation of these results is limited by the post hoc nature of the analysis.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 1009-1009 ◽  
Author(s):  
Rebecca Alexandra Dent ◽  
Sung-Bae Kim ◽  
Seock-Ah Im ◽  
Marc Espie ◽  
Sibel Blau ◽  
...  

1009 Background: The oral Akt inhibitor IPAT is being evaluated in cancers with a high prevalence of PI3K/Akt pathway activation, including TNBC. Methods: Eligible patients (pts) had measurable inoperable locally advanced/metastatic TNBC previously untreated with systemic therapy. Pts were stratified by prior (neo)adjuvant therapy, chemotherapy-free interval and tumor PTEN status, and randomized 1:1 to P 80 mg/m2 (d1, 8 & 15) with either IPAT 400 mg or PBO (d1–21) q28d until progression or unacceptable toxicity. Co-primary endpoints were progression-free survival (PFS) in the ITT population and pts with PTEN-low tumors by IHC. Secondary endpoints included objective response rate (ORR), duration of response (DoR) and overall survival in the ITT and IHC PTEN-low populations, efficacy in pts with PIK3CA/AKT1/PTEN-altered tumors by next-generation sequencing (NGS), and safety. Results: Baseline characteristics were generally balanced between arms. Efficacy is shown below. The most common grade ≥3 AEs (grouped terms) were diarrhea (23% IPAT+P vs 0% PBO+P; no grade 4 or colitis in either arm), neutropenia (18% vs 8%), asthenia (5% vs 6%), peripheral neuropathy (5% vs 5%) and pneumonia (5% vs 0%). More pts receiving IPAT+P than PBO+P had an AE leading to dose reduction of IPAT/PBO (21% vs 6%) or P (38% vs 11%) but median cumulative dose intensity was similar (IPAT/PBO: 99% vs 100%; P: 100% vs 100%). AEs led to IPAT/PBO discontinuation in 13% vs 11% of pts, respectively; 2 pts (3%) discontinued IPAT for grade 3 diarrhea. Conclusions: Adding IPAT to P for TNBC modestly improved PFS in the ITT pts. The effect was more pronounced in the prespecified subgroup with PIK3CA/AKT1/PTEN alterations, warranting further evaluation of IPAT in these pts. AEs were manageable. Clinical trial information: NCT02162719. [Table: see text]


2018 ◽  
Vol 36 (6_suppl) ◽  
pp. TPS707-TPS707
Author(s):  
Hilary Glen ◽  
Javier Puente ◽  
Daniel Yick Chin Heng ◽  
Sun Young Rha ◽  
Di Li ◽  
...  

TPS707 Background: Based on findings from a randomized phase 2 study (Study 205), lenvatinib (LEN) + everolimus (EVE) was approved in the United States and European Union for patients (pts) with advanced RCC following 1 prior anti-angiogenic therapy. In that study, LEN 18 mg QD + EVE 5 mg QD significantly prolonged progression-free survival (PFS) compared with either monotherapy. In the LEN+EVE cohort, grades 3 and 4 treatment-emergent adverse events (TEAEs) occurred in 71% of pts. We report the design of an ongoing, multicenter, randomized, double-blind, phase 2 study (Study 218) to evaluate if a lower LEN starting dosage regimen provides similar efficacy with a better safety profile than LEN 18 mg + EVE 5 mg (NCT03173560). Methods: Eligible pts are aged ≥ 18 years with advanced clear cell RCC, 1 prior anti-VEGF therapy, ≥ 1 measurable target lesion per RECIST 1.1, a KPS score of ≥ 70, and prior nivolumab is allowed. Pts will receive LEN 18 mg or 14 mg QD + EVE 5 mg QD in 28-day cycles until disease progression, unacceptable toxicity, or withdrawal of consent. The LEN 14-mg dose will be escalated to 18 mg if no intolerable grade 2, or any grade ≥ 3 TEAEs requiring dose reduction occur in cycle 1. The primary endpoints are objective response rate (ORR) at week 24 (ORR24W) and the proportion of pts with intolerable grade 2 and any grade ≥ 3 TEAEs within 24 wks after randomization. Secondary endpoints include PFS and ORR. An estimated 306 pts will be randomized. Sample size is based on detecting noninferiority (NI) of ORR24W and superiority of the primary safety endpoint. Two interim analyses (IA) will be performed when 150 and 200 pts have completed 24 wks of follow-up or discontinue earlier. Each analysis will test NI and futility of the LEN 14-mg arm ORR24W vs the 18-mg arm ORR24W. An O’Brien-Fleming boundary will be used for NI. If the 1-sided P-value is ≤ 0.005 at the first IA, ≤ 0.014 at the second IA, or ≤ 0.045 at the final analysis, then NI in ORR24W will be claimed. If the futility boundary is crossed (ie, 1-sided P-value is ≥ 0.776 at the first IA or ≥ 0.207 at the second IA), then futility will be claimed. Clinical trial information: NCT03173560.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 8506-8506 ◽  
Author(s):  
Anna K. Nowak ◽  
Federica Grosso ◽  
Nicola Steele ◽  
Silvia Novello ◽  
Sanjay Popat ◽  
...  

8506 Background: LUME-Meso is a Phase (Ph) II/III, double-blind, randomized study. N targets MPM by inhibiting VEGFR 1–3, PDGFR α/β, FGFR 1–3, Src and Abl kinases. Primary analysis of the Ph II data demonstrated improved progression-free survival (PFS; hazard ratio [HR]=0.56; 95% confidence interval [CI] 0.34–0.91; p=0.017). Mature Ph 2 OS and updated PFS results are reported here. Methods: Pts with unresectable MPM (ECOG PS 0–1) were stratified by histology (epithelioid/biphasic) and randomized 1:1 to receive ≤6 cycles PEM (500 mg/m2)/CIS (75 mg/m2) Day 1 + N or P (200 mg bid, Days 2–21), followed by N or P monotherapy until progression or toxicity. The primary endpoint was PFS. The primary OS analysis and updated PFS analysis were performed as predefined. Results: 87 pts were randomly assigned (N=44, P=43). OS benefit favored N over P treatment (HR=0.77; 95% CI 0.46–1.29; p=0.319; 62 [71%] OS events) and was greatest in epithelioid pts (HR=0.70; 95% CI 0.40–1.21; p=0.197) with a median (m) OS gain of 5.4 months (mOS [95% CI]: 20.6 [16.2–28.8] N vs 15.2 [12.2–23.6] P). Updated PFS results (HR=0.54; 95% CI 0.33–0.87; p=0.010) also showed greatest benefit for epithelioid pts (HR=0.49; 95% CI 0.30–0.82; p=0.006) with a mPFS gain of 4.0 months (mPFS [95% CI]: 9.7 [7.2–12.4] N vs 5.7 [5.5–7.0] P). Improved forced vital capacity, objective response rates and duration of response were also observed with N treatment. Drug-related adverse events (AEs) in N- vs P-treated pts were 97.7% vs 97.6%. Grade ≥3 AEs of note included neutropenia (27.3% vs 4.9%), ALT (11.4% vs 0) and GGT (6.8% vs 0) elevations, and diarrhea (6.8% vs 0). AEs led to trial discontinuation in only 3 (6.8%) N vs 7 (17.1%) P pts. Conclusions: Mature Ph II OS data show that adding N to standard 1st-line treatment gives a strong signal towards improved OS. Updated PFS confirmed the primary analysis; AEs were manageable. The greatest clinical benefit was observed in pts with epithelioid histology. Median survival of 20.6 months in epithelioid pts treated with N is unprecedented in advanced MPM trials. Ph III is actively recruiting in this pt population. Clinical trial information: NCT01907100.


2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 95-95 ◽  
Author(s):  
Jing Huang ◽  
Juxiang Xiao ◽  
Wentao Fang ◽  
Ping Lu ◽  
Qingxia Fan ◽  
...  

95 Background: The treatment option for ESCC patients (pts) progressing after chemotherapy is still uncertain. Anlotinib is a multi-target tyrosine kinase inhibitor involved in tumor angiogenesis and growth, such as vascular endothelia growth factor receptor (VEGFR) 2/3, etc. Methods: Eligible pts were advanced ESCC who had progressed after platinum or taxane containing chemotherapy. Between January 6, 2016 and May 22, 2018, a total of 165 pts from 13 centers in China were randomly assigned (in a 2:1 ratio) to anlotinib arm (n=110), and placebo arm (n=55). Pts were given anlotinib (12 mg/day) or placebo orally from day 1 to day 14 in a 21-day cycle until disease progression or had unacceptable toxic effects. The primary end point was progression-free survival (PFS). Results: Median PFS was 3.0 months with anlotinib and 1.4 months with placebo (HR 0.5, 95% CI, 0.3-0.7; P<0.0001). Complete response occured in 2 pts with anlotinib and 0 pt with placebo. The objective response rates were 7% in the anlotinib group and 4% in the placebo group (P=0.498), and the disease control rates (DCR) were 64% and 18%, respectively (P<0.0001). In anlotinib arm, median duration of response was 5.8 months (range, 3.1-19.7+). Grade 3/4 treatment-related adverse events (TRAE) were reported in 36.7% and 11.0% of the two group pts, and grade 5 TRAE were 2.8% and 0%, respectively. The most common grade 3/4 TRAE (>5%) in anlotinib arm were hypertension (15.6%) and loss of appetite (5.5%). Median overall survival were similar between the groups (6.1 months vs 7.2 months; HR 1.2, 95%CI 0.8-1.8, P=0.4261). The ratio of pts received post study treatments was 41.2% (40/97) in anlotinib arm and 72.7% (40/55) in placebo arm (P=0.0002), including chemotherapy (23.7% vs 54.6%), PD-1 inhibitors (4.1% vs 11.0%), and Apatinib, a VEGFR inhibitor, (10.3% vs 20.0%), etc. Conclusions: In pretreated advanced ESCC pts, anlotinib significantly improved PFS and DCR compared with placebo, with a manageable safety profile. Clinical trial information: NCT02649361.


2020 ◽  
Vol 38 (27) ◽  
pp. 3185-3194 ◽  
Author(s):  
Eric Van Cutsem ◽  
Margaret A. Tempero ◽  
Darren Sigal ◽  
Do-Youn Oh ◽  
Nicola Fazio ◽  
...  

PURPOSE To evaluate the efficacy and safety of pegvorhyaluronidase alfa (PEGPH20) plus nab-paclitaxel/gemcitabine (AG) in patients with hyaluronan-high metastatic pancreatic ductal adenocarcinoma (PDA). PATIENTS AND METHODS HALO 109-301 was a phase III, randomized, double-blind, placebo-controlled study. Patients ≥ 18 years of age with untreated, metastatic, hyaluronan-high PDA were randomly assigned 2:1 to PEGPH20 plus AG or placebo plus AG. Treatment was administered intravenously in 4-week cycles (3 weeks on, 1 week off) until progression or intolerable adverse events: PEGPH20 3.0 µg/kg twice per week for cycle 1 and once per week thereafter; nab-paclitaxel 125 mg/m2 once per week; and gemcitabine 1,000 mg/m2 once per week. The primary end point was overall survival (OS); secondary end points included progression-free survival (PFS), objective response rate (ORR), and safety. Response was independently assessed per RECIST v1.1. RESULTS At data cutoff, 494 patients were randomly assigned, with 492 (327 for PEGPH20 and 165 for placebo) included in intention-to-treat analyses. Baseline characteristics were balanced for PEGPH20 plus AG versus placebo plus AG. There were 330 deaths, with a median OS of 11.2 months for PEGPH20 plus AG versus 11.5 months for placebo plus AG (hazard ratio [HR], 1.00; 95% CI, 0.80 to 1.27; P = .97); median PFS was 7.1 months versus 7.1 months (HR, 0.97 [95% CI, 0.75 to 1.26]); ORR was 47% versus 36% (ORR ratio, 1.29 [95% CI, 1.03 to 1.63]). Grade ≥ 3 adverse events with a ≥ 2% higher rate with PEGPH20 plus AG than with placebo plus AG included fatigue (16.0% v 9.6%), muscle spasms (6.5% v 0.6%), and hyponatremia (8.0% v 3.8%). CONCLUSION The addition of PEGPH20 to AG increased the ORR but did not improve OS or PFS. The safety profile of PEGPH20 plus AG was consistent with that found in previous studies. These results do not support additional development of PEGPH20 in metastatic PDA.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 7503-7503 ◽  
Author(s):  
Pasi A. Janne ◽  
Alice Tsang Shaw ◽  
Jose Rodrigues Pereira ◽  
Gaelle Jeannin ◽  
Johan Vansteenkiste ◽  
...  

7503 Background: KRAS mutations are the most common (~20%) oncogenic alteration in NSCLC. There are no effective targeted therapies for this subset of NSCLC. Selumetinib (AZD6244, ARRY-142866) inhibits MEK1/2 signaling downstream of KRAS. We prospectively evaluated SEL + DOC vs DOC + placebo in advanced KRAS mutant NSCLC based on preclinical observations (NCT00890825). Methods: Patients (pts) with stage IIIB-IV, KRAS mutant NSCLC, who had received prior chemotherapy, received iv DOC 75 mg/m2, and po SEL 75 mg or placebo BD. The primary endpoint was overall survival (OS); secondary endpoints included: progression-free survival (PFS), objective response rate (RR), duration of response, change in tumor size, proportion of patients alive and progression-free at 6 mo, and safety and tolerability. Results: Between April 2009 and June 2010, 422 pts were screened across 67 centers in 12 countries; 113 had KRAS mutant NSCLC and 87 were randomized (DOC, 43; SEL/DOC, 44). Baseline characteristics were balanced (DOC vs SEL/DOC): WHO PS 0, 49%/48%; Female, 54%/52%; KRAS codon 12, 90%/93%. Median number of cycles: DOC, 4; SEL/DOC, 5. Most frequent grade 3/4 hematologic toxicity (DOC vs SEL/DOC): neutropenia (54.8%/67.4%), febrile neutropenia (0%/15.9%); most frequent grade 3/4 non-hematologic toxicity: dyspnea (11.9%/2.3%) asthenia (0%/9.1%), respiratory failure (4.8%/6.8%), acneiform dermatitis (0%/6.8%). Discontinuation due to AEs was similar: 18.2% SEL/DOC vs 11.9% DOC. OS was longer for SEL/DOC vs DOC (9.4 mo vs 5.2 mo; 56 events, median follow-up 219 days) but did not reach statistical significance; hazards were non proportional (HR 0.80; 80% CI 0.56, 1.14; 1-sided p=0.2069). All secondary endpoints, including RR (DOC 0%, SEL/DOC 37%; p<0.0001) and PFS (DOC 2.1 mo, SEL/DOC 5.3 mo; 71 events; HR = 0.58; 80% CI 0.42, 0.79; 1-sided p=0.0138), were significantly improved for SEL/DOC vs DOC. Conclusions: This is the first prospective study to demonstrate a clinical benefit of a targeted therapy (SEL + DOC) for patients with KRAS mutant cancer of any type. Our findings could have implications for the treatment of NSCLC and other KRAS mutant cancers.


2021 ◽  
pp. 1-2
Author(s):  
Sarah Matz

<b>Purpose:</b> Patients with advanced endometrial carcinoma have limited treatment options. We report final primary efficacy analysis results for a patient cohort with advanced endometrial carcinoma receiving lenvatinib plus pembrolizumab in an ongoing phase Ib/II study of selected solid tumors. <b>Methods:</b> Patients took lenvatinib 20 mg once daily orally plus pembrolizumab 200 mg intravenously once every 3 weeks, in 3-week cycles. The primary end point was objective response rate (ORR) at 24 weeks (ORRWk24); secondary efficacy end points included duration of response (DOR), progression-free survival (PFS), and overall survival (OS). Tumor assessments were evaluated by investigators per immune-related RECIST. <b>Results:</b> At data cutoff, 108 patients with previously treated endometrial carcinoma were enrolled, with a median follow-up of 18.7 months. The ORRWk24 was 38.0% (95% CI, 28.8% to 47.8%). Among subgroups, the ORRWk24 (95% CI) was 63.6% (30.8% to 89.1%) in patients with microsatellite instability (MSI)-high tumors (n = 11) and 36.2% (26.5% to 46.7%) in patients with microsatellite-stable tumors (n = 94). For previously treated patients, regardless of tumor MSI status, the median DOR was 21.2 months (95% CI, 7.6 months to not estimable), median PFS was 7.4 months (95% CI, 5.3 to 8.7 months), and median OS was 16.7 months (15.0 months to not estimable). Grade 3 or 4 treatment-related adverse events occurred in 83/124 (66.9%) patients. <b>Conclusion:</b> Lenvatinib plus pembrolizumab showed promising antitumor activity in patients with advanced endometrial carcinoma who have experienced disease progression after prior systemic therapy, regardless of tumor MSI status. The combination therapy had a manageable toxicity profile. <b>Trial registration:</b> ClinicalTrials.gov NCT02501096.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 1077-1077
Author(s):  
Joyce O'Shaughnessy ◽  
Kevin Punie ◽  
Mafalda Oliveira ◽  
Filipa Lynce ◽  
Sara M. Tolaney ◽  
...  

1077 Background: In pts with pretreated mTNBC, standard-of-care chemotherapy is associated with low objective response rates (ORRs) and short median progression-free survival (PFS). SG is an antibody-drug conjugate composed of an anti–Trop-2 antibody coupled to the cytotoxic SN-38 payload via a proprietary, hydrolyzable linker. SG received accelerated FDA approval for treatment of pts with mTNBC who have received ≥2 prior therapies for metastatic disease. The confirmatory phase 3 ASCENT study (NCT02574455) in pts with relapsed/refractory mTNBC demonstrated a significant survival benefit of SG over TPC (median PFS: 5.6 vs 1.7 mo, HR 0.41, P< 0.0001; median overall survival [OS]: 12.1 vs 6.7 mo, HR 0.48, P< 0.0001) with a tolerable safety profile. Here we summarize efficacy results for SG vs each TPC agent in ASCENT to examine how each TPC agent performed individually. Methods: Pts had mTNBC refractory to or progressing after ≥2 prior standard chemotherapy regimens. Pts were randomized 1:1 to receive SG (10 mg/kg intravenously on days 1 and 8, every 21 days) or single-agent TPC (eribulin, vinorelbine, capecitabine, or gemcitabine). Primary endpoint was PFS per RECIST 1.1 by independent review in brain metastases-negative (BMNeg) pts. Secondary endpoints were ORR per RECIST 1.1, duration of response, OS, and safety. Outcomes for each of the agents in the TPC arm were analyzed and compared with SG. Results: Of 529 pts enrolled, 468 were BMNeg. Among pts in the TPC cohort (n = 233), eribulin was the most commonly chosen chemotherapy (n = 126), followed by vinorelbine (n = 47), capecitabine (n = 31), and gemcitabine (n = 29). Treatment with eribulin, vinorelbine, capecitabine, and gemcitabine resulted in shorter median PFS vs SG (2.1, 1.6, 1.6, and 2.7 vs 5.6 mo, respectively); similar results were observed for median OS (6.9, 5.9, 5.2, and 8.4 vs 12.1 mo), ORR (5%, 4%, 6%, and 3% vs 35%), and clinical benefit rate (CBR; 8%, 6%, 10%, and 14% vs 45%). Key grade ≥3 treatment-related adverse events (TRAEs) with TPC overall vs SG included neutropenia (33% vs 51%), leukopenia (5% vs 10%), fatigue (5% vs 3%), and anemia (5% vs 8%). Key grade ≥3 TRAEs with eribulin vs SG included neutropenia (30% vs 51%), leukopenia (5% vs 10%), fatigue (5% vs 3%), anemia (2% vs 8%), and peripheral neuropathy (2% vs none), respectively. The safety profiles of vinorelbine, capecitabine, and gemcitabine combined were consistent with that of TPC overall and with eribulin. One treatment-related death was reported for the TPC arm (eribulin) and none with SG. Conclusions: The efficacy benefit observed with SG vs TPC in pts with mTNBC was retained when evaluating each TPC chemotherapy agent individually. These results confirm that SG should be considered as a new standard of care in pts with pretreated mTNBC. Clinical trial information: NCT02574455 .


Cancers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2985
Author(s):  
Ian Chau ◽  
Nicolas Penel ◽  
Andres O. Soriano ◽  
Hendrik-Tobias Arkenau ◽  
Jennifer Cultrera ◽  
...  

Ramucirumab (anti-VEGFR2) plus pembrolizumab (anti-PD1) demonstrated promising antitumor activity and tolerability among patients with previously treated advanced cancers, supporting growing evidence that combination therapies modulating the tumor microenvironment may expand the spectrum of patients who respond to checkpoint inhibitors. Here we present the results of this combination in first-line patients with metastatic G/GEJ cancer. Twenty-eight patients (≥18 years) with no prior systemic chemotherapy in the advanced/metastatic setting received ramucirumab (8 mg/kg days 1 and 8) plus pembrolizumab (200 mg day 1) every 3 weeks as part of JVDF phase 1a/b study. The primary endpoint was safety. Secondary endpoints included progression-free survival (PFS), objective response rate (ORR), and overall survival (OS). Tumors were PD-L1-positive (combined positive score ≥ 1) in 19 and -negative in 6 patients. Eighteen patients experienced grade 3 treatment-related adverse events, most commonly hypertension (14%) and elevated alanine/aspartate aminotransferase (11% each), with no grade 4 or 5 reported. The ORR was 25% (PD-L1-positive, 32%; PD-L1-negative, 17%) with duration of response not reached. PFS was 5.6 months (PD-L1-positive, 8.6 months; PD-L1-negative, 4.3 months), and OS 14.6 months (PD-L1-positive, 17.3 months; PD-L1-negative, 11.3 months). Acknowledging study design limitations, ramucirumab plus pembrolizumab had encouraging durable clinical activity with no unexpected toxicities in treatment-naïve biomarker-unselected metastatic G/GEJ cancer, and improved outcomes in patients with PD-L1-positive tumors.


2020 ◽  
Vol 38 (3) ◽  
pp. 193-202 ◽  
Author(s):  
Richard S. Finn ◽  
Baek-Yeol Ryoo ◽  
Philippe Merle ◽  
Masatoshi Kudo ◽  
Mohamed Bouattour ◽  
...  

PURPOSE Pembrolizumab demonstrated antitumor activity and safety in the phase II KEYNOTE-224 trial in previously treated patients with advanced hepatocellular carcinoma (HCC). KEYNOTE-240 evaluated the efficacy and safety of pembrolizumab in this population. PATIENTS AND METHODS This randomized, double-blind, phase III study was conducted at 119 medical centers in 27 countries. Eligible patients with advanced HCC, previously treated with sorafenib, were randomly assigned at a two-to-one ratio to receive pembrolizumab plus best supportive care (BSC) or placebo plus BSC. Primary end points were overall survival (OS) and progression-free survival (PFS; one-sided significance thresholds, P = .0174 [final analysis] and P = .002 [first interim analysis], respectively). Safety was assessed in all patients who received ≥ 1 dose of study drug. RESULTS Between May 31, 2016, and November 23, 2017, 413 patients were randomly assigned. As of January 2, 2019, median follow-up was 13.8 months for pembrolizumab and 10.6 months for placebo. Median OS was 13.9 months (95% CI, 11.6 to 16.0 months) for pembrolizumab versus 10.6 months (95% CI, 8.3 to 13.5 months) for placebo (hazard ratio [HR], 0.781; 95% CI, 0.611 to 0.998; P = .0238). Median PFS for pembrolizumab was 3.0 months (95% CI, 2.8 to 4.1 months) versus 2.8 months (95% CI, 2.5 to 4.1 months) for placebo at the first interim analysis (HR, 0.775; 95% CI, 0.609 to 0.987; P = .0186) and 3.0 months (95% CI, 2.8 to 4.1 months) versus 2.8 months (95% CI, 1.6 to 3.0 months) at final analysis (HR, 0.718; 95% CI, 0.570 to 0.904; P = .0022). Grade 3 or higher adverse events occurred in 147 (52.7%) and 62 patients (46.3%) for pembrolizumab versus placebo; those that were treatment related occurred in 52 (18.6%) and 10 patients (7.5%), respectively. No hepatitis C or B flares were identified. CONCLUSION In this study, OS and PFS did not reach statistical significance per specified criteria. The results are consistent with those of KEYNOTE-224, supporting a favorable risk-to-benefit ratio for pembrolizumab in this population.


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