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A. Santo
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MA 01 - SCLC: Research Perspectives (ID 650)
- Event: WCLC 2017
- Type: Mini Oral
- Track: SCLC/Neuroendocrine Tumors
- Presentations: 1
- Moderators:John V Heymach, Eun Kyung Cho
- Coordinates: 10/16/2017, 11:00 - 12:30, Room 503
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MA 01.07 - Lanreotide Maintenance in SCLC Expressing Somatostatine Receptors: Efficacy Results of Multicenter Randomized G04.2011 Trial (ID 8480)
11:40 - 11:45 | Author(s): A. Santo
- Abstract
- Presentation
Background:
SCLC is featured by both a rapid response and progression during/after standard upfront therapy. Thus, maintenance strategies emerged as potential treatment opportunities, although to date all drugs failed to significantly improve prognosis. SCLC cells harbor a neuroendocrine phenotype, frequently expressing somatostatine (SST) receptors. This study aimed to investigate the efficacy of somatostatine (SST) analogue Lanreotide (LAN) as a maintenance strategy for SCLC patients (pts) after response to standard upfront treatment.
Method:
A multicentre, randomized, open-label, no-profit national trial was conducted, randomizing (1:1) SCLC (limited/extended disease, L/ED) pts expressing SST receptors (by SST receptor scintigraphy) with objective response (CR or PR) after upfront platinum-based chemotherapy plus/minus radiotherapy to receive maintenance LAN 120 mg subcutaneously every 28 days, up to progressive disease (PD) for 1 year (Arm A), versus observation (Arm B). Primary end-point was 1-year Progression-Free Survival (PFS). Primary intention-to-treat (ITT) analysis was planned (power: 80%; 2-tailed alpha-error: 5%) after 47 PFS events.
Result:
Seventy-one pts (median age 66 [37-82]; male/female 72/28%; L/ED 39/61%; ECOG-PS 0-1/2 97/3%; previous best response CR/PR 6/94%) were randomized in 9 Italian centers. Median time from diagnosis and end-of-1[st] line to inclusion was 5.7 months (3-160) and 30 days (0-119), respectively. Median number of LAN doses and treatment duration (Arm A) was 4 (1-12) and 83 days (1-392), respectively. With a median follow-up of 9.4 months and 62 events, median PFS was 3.6 (95% CI 3.2-3.9) versus 2.3 months (95% CI 1.7-2.9), for Arm A and B (log-rank p=0.11; HR 1.51, 95% CI 0.90-2.50), with a 1-year PFS of 10.3% versus 7.3%, respectively. At the cox-proportional multivariate modelling, stage (ED versus LD, HR 2.88 [95% CI 1.64-5.04, p<0.0001) and treatment arm (B versus A, HR 1.63 [95% CI 0.97-2.72], p=0.06) were independent predictors for PFS. Median PFS of arm A and B was 7.0 [95% CI <1-13.5] and 3.8 months [95% CI <1-8.6] in LD pts (p=0.21), and 3.0 (95% CI 2.2-3.8) and 2.2 (95% 1.7-2.7) in ED pts (p=0.19). Median OS was 9.5 (95% CI 4.8-14.3) and 4.7 months (95% CI 1.7-16.6), for Arm A and B (log-rank p=0.47), respectively. LAN was well-tolerated: serious treatment-related adverse events were grade 3 abdominal pain and electrolyte disorder in overall 2 pts.
Conclusion:
Although the primary end-point was not met, the overall efficacy of LAN as a maintenance strategy after response to standard upfront treatment for SCLC deserves future investigations, particularly in pts with LD.
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P1.01 - Advanced NSCLC (ID 757)
- Event: WCLC 2017
- Type: Poster Session with Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 10/16/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)
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P1.01-053 - Italian Nivolumab Expanded Access Programme (EAP): Data from Patients with Advanced Non-Squamous NSCLC and Brain Metastases (ID 10056)
09:30 - 09:30 | Author(s): A. Santo
- Abstract
Background:
Among patients (pts) affected by non-squamous non-small cell lung cancer (non-Sq-NSCLC), those with secondary brain metastases are very common and are characterized by a poor prognosis. As they are usually excluded from clinical trials, the EAP offered an opportunity to evaluate nivolumab efficacy and safety in these patients outside of a controlled clinical trial in Italy.
Method:
Nivolumab was available upon physician request for pts aged ≥18 years with a diagnosis of non-Sq-NSCLC who had relapsed after a minimum of one prior systemic treatment for stage IIIB/stage IV non-Sq-NSCLC. Nivolumab 3 mg/kg was administered intravenously every 2 weeks to a maximum of 24 months. Pts included in the analysis had received ≥ 1 dose of nivolumab and were monitored for adverse events using Common Terminology Criteria for Adverse Events. Pts with brain metastasis were eligible if asymptomatic, neurologically stable and either off corticosteroids or on a stable dose or decreasing dose of ≤ 10 mg daily prednisone.
Result:
Out of 1588 patients with non-Sq-NSCLC participating in the EAP in Italy, 409 (26%) had asymptomatic and controlled secondary brain metastases. Pts received a median number of 7 doses (1-45) and had a median follow-up of 6.1 months (0.1-21.9). The disease control rate was 40%, including 3 pts with a complete response, 65 pts with a partial response and 96 with stable disease. Among these pts, 118 were receiving steroid therapy at baseline and 74 received concomitant radiotherapy. As of March 2017, median overall survival of this subpopulation was 8.1 months (6.2-10.1). Overall, among pts with brain metastasis, 337 discontinued treatment for any reason, with only 23 (7%) pts who discontinued treatment due to adverse events, in line with what observed in the general population and in previous studies.
Conclusion:
These data confirmed the activity of nivolumab in patients with non-Sq-NSCLC and brain metastases, supporting the use of nivolumab in this population with poor prognosis. Moreover, as already observed in other tumor types, safety results were consistent to what already reported and confirmed the favorable safety profile.
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P2.01 - Advanced NSCLC (ID 618)
- Event: WCLC 2017
- Type: Poster Session with Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 10/17/2017, 09:00 - 16:00, Exhibit Hall (Hall B + C)
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P2.01-075d - Analysis of Early Survival in Patients with Advanced Non-Squamous NSCLC Treated with Nivolumab: The Italian Expanded Access Program Experience (ID 9237)
09:00 - 09:00 | Author(s): A. Santo
- Abstract
Background:
In the Checkmate 057 trial, it was observed a slightly higher number of deaths in the nivolumab arm within the first 3 months of treatment. A post-hoc analysis from this study suggested that pts with poorer prognostic factors and/or more aggressive disease combined with low or no PD-L1 expression appeared to be at higher risk of death with nivolumab. Nevertheless, most of pts with these factors were still alive > 3 months in the nivolumab arm and no factors have been identified for selection. Here, we report a similar analysis conducted on pts treated with nivolumab in the Expanded Access Programme (EAP) in Italy.
Method:
Nivolumab was available upon physician request for pts aged ≥18 years who had relapsed after a minimum of one prior systemic treatment for stage IIIB/stage IV non-Squamous NSCLC. Nivolumab 3 mg/kg was administered intravenously every 2 weeks to a maximum of 24 months. Pts included in the analysis had received at least one dose of nivolumab and were monitored for adverse events (AE) using Common Terminology Criteria for Adverse Events.
Result:
In the Italian EAP, of 1559 pts with available survival data, 365 (23.4%) died within the first 3 months. This data is comparable to what observed in the 057 study where (nivolumab arm 20.2% pts died <3 months). Baseline characteristics of the two groups (deaths ≤3 or >3 months) are summarized in the table below. In univariate and multivariate analysis, factors associated with early death were:bone and liver metastases, ECOG PS2 and no prior maintenance therapy. However, majority of pts with these factors did not die within the first 3 months.OS >3 months (1194) OS ≤3 months (n=365) Gender, Male (%) 760 (64) 251 (69) AGE (median; range) ≥70 yrs, n (%) ≥75 yrs, n (%) 66 (27-89) 397 (33) 181 (15) 65 (36-83) 116 (32) 48 (13) SMOKING HABITS, n (%) Former/current smoker Never smoker NA - 865 (79) 232 (21) 97 - 250 (78) 72 (22) 43 ECOG PS, n (%) 0 1 2 NA - 538 (45) 591 (50) 53 (5) 12 - 101 (28) 207 (57) 53 (15) 4 METASTASIS, n (%) Brain Liver Bone Nodes - 296 (25) 208 (17) 429 (36) 877 (73) - 107 (29) 114 (31) 189 (52) 283 (77) EGFR, n (%) 74/1065 (7) 23/312 (7) Maintenance 303 (25) 69 (19)
Conclusion:
These results confirm the pivotal 057 trial suggesting that no single clinical factor can be used for pts selection. PS2, liver or bone metastastatic pts should be followed with attention after starting Nivolumab.
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P3.01 - Advanced NSCLC (ID 621)
- Event: WCLC 2017
- Type: Poster Session with Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 10/18/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)
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P3.01-005 - ASTRIS: A Real World Study of Osimertinib Treatment in Patients with EGFR T790M Positive Advanced NSCLC; Interim Analysis (ID 7884)
09:30 - 09:30 | Author(s): A. Santo
- Abstract
Background:
Osimertinib is a third-generation, CNS active EGFR-TKI that potently and selectively inhibits both EGFR-sensitizing and EGFR T790M resistance mutations in non-small cell lung cancer (NSCLC). We report interim clinical and molecular diagnostic testing results from a predefined interim analysis of the ongoing ASTRIS study (NCT02474355).
Method:
Patients (pts) received osimertinib 80 mg once daily. Eligible pts had advanced NSCLC that had progressed on prior EGFR-TKI therapy and with a T790M mutation determined by local validated molecular test, WHO performance status (PS) 0−2, acceptable organ and bone marrow function and no history of interstitial lung disease or QTc prolongation. Asymptomatic, stable CNS metastases were permitted. The primary efficacy outcome was overall survival; other outcomes included local test methods, specimen type, EGFR mutations identified, investigator-assessed response rate (RR), progression-free survival and time to treatment discontinuation. Safety data are also reported.
Result:
From 18 Sept 2015 to the planned 3 Nov 2016 data cut-off (DCO), 1217 pts received osimertinib 80 mg once-daily across 14 countries with a median age 64 yrs (27–92 yrs), 67% female, 61% White, 37% Asian, 87% WHO PS 0/1, 44% prior chemotherapy, 45% prior radiotherapy. All pts tested positive for T790M; T790M was reported alone in 185 pts (15%). The most common testing methods were PNA-Clamp 317 pts (27%), Qiagen therascreen 254 pts (22%), and Roche cobas 204 pts (17%). Exon 19 deletion was the most common co-occurring mutation with T790M (57%), followed by L858R (27%). Tissue or cytology specimens were used in 720 pts (59%), plasma in 433 pts (36%), and other specimens in 64 pts (5%). At DCO, the median duration of exposure was 3.8 months (<1–13.2 months) with a median follow-up time of 4.1 months (<1−14 months). In pts evaluable for response, the investigator-assessed RR was 64% (569/886; 95% CI 61, 67). Adverse events (AEs) leading to dose modification and treatment discontinuation were reported in 122 pts (10%) and 54 pts (4%), respectively. Serious AEs were reported in 165 pts (14%) and AEs leading to death in 28 pts (2%).
Conclusion:
ASTRIS is the largest reported global study of osimertinib in pts with T790M-positive NSCLC identified by a wide array of molecular testing methods and from various specimen types. Considering this breadth of T790M testing, the clinical activity of osimertinib is like that observed in the clinical trial program and no new safety signals were identified.
