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Eric B. Haura



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    MA04 - Novel Approaches with IO (ID 900)

    • Event: WCLC 2018
    • Type: Mini Oral Abstract Session
    • Track: Immunooncology
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/24/2018, 13:30 - 15:00, Room 107
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      MA04.09 - Neoadjuvant Atezolizumab in Resectable Non-Small Cell Lung Cancer (NSCLC): Updated Results from a Multicenter Study (LCMC3) (ID 12941)

      14:30 - 14:35  |  Author(s): Eric B. Haura

      • Abstract
      • Presentation
      • Slides

      Background

      Cisplatin-based chemotherapy, before or after surgery, provides only a 5% benefit in 5yr. OS in resectable NSCLC. A 20 patient study (NEJM April 2018) showed that preoperative immune checkpoint inhibitor therapy yielded a clinically meaningful major pathologic response rate (MPR ≤10% residual viable tumor cells) and did not delay or complicate surgery. This large multicenter trial measures MPR and biomarkers of benefit using neoadjuvant atezolizumab (atezo) [NCT02927301].

      a9ded1e5ce5d75814730bb4caaf49419 Method

      We planned 2 cycles of atezo (1200mg, days 1, 22) in patients with stages IB -selected IIIB resectable NSCLC prior to surgical resection (day 40 +/- 10). Chest CT, PET were planned pre-atezo and presurgery to assess response. Primary tumor +/- node biopsies and blood samples were obtained before atezo and presurgery for biomarker studies. The primary endpoint was MPR. Secondary endpoints included safety, response by PD-L1, OS, and DFS.

      4c3880bb027f159e801041b1021e88e8 Result

      For this updated efficacy and safety analysis (Feb’18 datacut), we report first 54 of 180 planned pts: 29 males, median age 65 yr, all ECOG 0-1; 17 current, 33 former smokers; 35 non-squamous NSCLC; clinical stages Ib/IIa/IIb/IIIa/IIIb = 5/11/13/20/5. Two pts received one dose of atezo due to treatment related AE (Gr 1 pyrexia, Gr 2 dyspnea) but underwent uncomplicated resection with MPR assessment. There was 1 unrelated Gr 5 AE (sudden cardiac death post surgical resection), 16 Gr 3-4 AEs (3 treatment related). Surgery was delayed in 1 pt due to Gr3 pneumonitis. By RECIST, 3 pts had PR, and 49 had SD. 50 pts underwent surgery and 47 pts had MPR assessment: 2 pts discontinued study preop due to radiographic PD and 2 discontinued due to other reasons; 3 pts had unresectable disease. MPR rate was 10/50 (20%, 95% CI 10-34%) including 3 pts who had pCR (no viable tumor cells) in the primary tumor. Excluding 5 pts who had known driver mutations (4 EGFR+, 1 ALK+), MPR rate was 10/45 (22%, 95% CI 11-37%). PD-L1 status was evaluable in 44/54 pts; 8/10 pts with MPR had PD-L1+ status and 2 had unknown PD-L1 status; 8/28 PDL-1 (+) patients had MPR (29%).

      8eea62084ca7e541d918e823422bd82e Conclusion

      In a multicenter study, neoadjuvant atezo was well tolerated. MPR rate is encouraging. Clinical and pathological responses are often discordant. Correlative analyses on pre- and post atezo tissues are ongoing. Preliminary correlative analyses in blood samples are included in a separate abstract.

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    OA05 - Clinical Trials in IO (ID 899)

    • Event: WCLC 2018
    • Type: Oral Abstract Session
    • Track: Advanced NSCLC
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/24/2018, 13:30 - 15:00, Room 106
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      OA05.03 - Safety and Clinical Activity of Adoptive Cell Transfer Using Tumor Infiltrating Lymphocytes (TIL) Combined with Nivolumab in NSCLC (ID 14388)

      13:50 - 14:00  |  Author(s): Eric B. Haura

      • Abstract
      • Presentation
      • Slides

      Background

      Adoptive transfer of tumor infiltrating lymphocytes (TIL) can cause durable regression by recognition of neoantigens unique to the patient. NSCLC TIL has synergistic preclinical activity with nivolumab, and we hypothesized it may induce remissions in anti-PD1-refractory patients. We initiated a phase I trial with the primary objective to characterize the safety and preliminary activity of the combination.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      Metastases from patients with Stage 4 NSCLC were resected, morselized, cultured, and tested for autologous reactivity. Reactive TIL fragments were pooled and cryopreserved. Patients received nivolumab over 8 weeks. Patients with progressive disease (PD) proceeded to lymphodepletion cyclophosphamide/fludarabine (Cy/Flu), TIL, and IL-2. Tumor whole exome sequencing, transcriptomics, and LC-MS/MS peptide sequencing was performed. TCR-Vß rearrangements were analyzed from tumor, TIL, and pre-/post-infusion peripheral lymphocytes.

      4c3880bb027f159e801041b1021e88e8 Result

      Of 14 patients enrolled to date, 13 had successful ex vivo TIL expansion from resected metastases. TIL had high proliferative capacity, expanding to median 81 billion CD3+ cells infused per patient (range 27–138 billion) and median 27% of fragments were autologously reactive (range 0-67%). Demographics: median age 54 (range 44-74), median TMB 4 mutations/MB (range 0.9–25), median PD-L1 proportion-score 0% (range 0–100%), and 4 had LKB1 allelic inactivation. Predicted neoantigens correlated with variants on proteomic sequencing. Outcomes: 9 patients had confirmed PD on nivolumab, and proceeded to receive Cy/Flu/TIL/IL-2. No unexpected serious adverse reactions (SUSARs) were identified. Of these 9 patients, 7 had reduction in sum of target lesions at Day+28 CT scan (Figure 1). Peripheral lymphocytes expanded at Days 2-7 in the majority of patients. In patients tested to date, TIL clonotypes persisted through Day+100, and CCR7+CD95+CD45RA+ stem cell-like memory (TSCM) cells were increased at post-infusion timepoints.

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      8eea62084ca7e541d918e823422bd82e Conclusion

      Adoptive cell transfer with TIL and nivolumab for NSCLC had acceptable toxicity and preliminary activity in this ongoing trial.

      6f8b794f3246b0c1e1780bb4d4d5dc53

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    P1.04 - Immunooncology (Not CME Accredited Session) (ID 936)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/24/2018, 16:45 - 18:00, Exhibit Hall
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      P1.04-32 - Phase I/II Study of the A2AR Antagonist NIR178 (PBF-509), an Oral Immunotherapy, in Patients (pts) with Advanced NSCLC (ID 12495)

      16:45 - 18:00  |  Author(s): Eric B. Haura

      • Abstract
      • Slides

      Background

      Background: ATP is catabolized to adenosine in the tumor microenvironment, leading to excess adenosine and immunosuppressive effects via immune checkpoint protein adenosine 2A receptor (A2AR). NIR178 is an oral A2AR antagonist that selectively binds and inhibits A2AR, reactivating T cell-mediated antitumor immune response. This Phase I/II study evaluated NIR178 in previously treated pts with advanced NSCLC (NCT02403193).

      a9ded1e5ce5d75814730bb4caaf49419 Method

      Methods: Pts (ECOG PS 0─1) had received ≥1 prior line of therapy; EGFR/ALK pts had failed prior TKI therapy. Objectives: primary – determine MTD of single-agent NIR178; secondary – efficacy endpoints, PK, and evaluation of PD-L1 expression.

      4c3880bb027f159e801041b1021e88e8 Result

      Results: At 13 Dec 2017 data cut-off, 24 pts had been treated: median age 68 yrs, 46% male; 79% received prior immunotherapy; 22/24 (92%) pts had discontinued (due to progression [n=13], death [n=2], AEs [n=2] or other reasons [n=5]) and 2/24 (8%) pts remained on treatment. Dose levels evaluated: 80 (n=3), 160 (n=3), 320 (n=7), 480 (n=6), 640 mg BID (n=5). There was 1 DLT: Gr 3 nausea (640 mg). The most frequent (≥20%) any-Gr AEs regardless of causality were nausea (67%), fatigue (63%), dyspnea (46%), vomiting (33%), chest pain and other (29%), gastroesophageal reflux disease, anemia, diarrhea (all 25%), anorexia, back pain, generalized muscle weakness and cough (all 21%). Drug-related Gr 3 AEs were pneumonitis (8%) and nausea (4%); no Gr 4 AEs were reported. Potential immune-related any-Gr AEs were rash (8%), pneumonitis (8%), hypothyroidism, increased ALT/AST (all 4%). NIR178 systemic exposure (Cmax, AUC) increased more than proportionally with dose. Efficacy data for 17/24 treated pts demonstrated responses and SD across the dose range, including 1 confirmed CR (480 mg) and 1 PR (80 mg), both in immunotherapy-naïve pts. Durable SD >44 wks with tumor shrinkage was observed in 2 ongoing immunotherapy-exposed pts. Disease control was seen in pts with both high and low baseline PD-L1 expression.

      8eea62084ca7e541d918e823422bd82e Conclusion

      Conclusions: NIR178 was well tolerated; AEs were manageable and there were no Gr 4 drug-related AEs. Immune-related AEs may indicate immune stimulation. Clinical benefit was observed in immunotherapy-exposed and -naïve pts irrespective of PD-L1 status.

      6f8b794f3246b0c1e1780bb4d4d5dc53

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    P2.09 - Pathology (Not CME Accredited Session) (ID 958)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/25/2018, 16:45 - 18:00, Exhibit Hall
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      P2.09-17 - A Call to Action: Rapid Collection of Post-Mortem Lung Cancer Tissue in the Community to Enable Lung Cancer Research (ID 12584)

      16:45 - 18:00  |  Author(s): Eric B. Haura

      • Abstract

      Background

      Posthumous rapid tissue donation (RTD) provides an opportunity to understand treatment-resistant lung cancers with preservation of valuable tumor and non-tumor specimens from primary and metastatic sites.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      Consent to participate in the lung RTD program was obtained during patient care. When death occurred, tumor and paired non-tumor, cytology, and blood specimens were preserved as formalin-fixed and frozen specimens. Tissue sections were evaluated with hematoxylin and eosin (H&E) staining and programmed death ligand-1 (PD-L1) immunohistochemistry. Massively parallel sequencing was performed on 11 specimens.

      4c3880bb027f159e801041b1021e88e8 Result

      To date, 21 patients consented to participate in the RTD program. Post-mortem specimens (N=180) were preserved from 9 patients and the other patients remain alive. Evaluation of H&E slides confirmed well-preserved tissue. PD-L1 immunohistochemistry revealed heterogeneous expression between tumor sites. Next generation sequencing provided high quality data on all 11 tested samples.

      8eea62084ca7e541d918e823422bd82e Conclusion

      Rapid donation of post-mortem tissue from lung cancer patients is feasible and provides high quality specimens for research. Post-mortem tissue collection of primary and metastatic tumors facilitates studies of tumor mutation evolution, mechanisms of drug resistance, and biomarker expression.

      6f8b794f3246b0c1e1780bb4d4d5dc53