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Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research

5089 - Phase I/II study of spartalizumab (PDR001), an anti-PD1 mAb, in patients with advanced melanoma or non-small cell lung cancer

Date

20 Oct 2018

Session

Poster display session: Biomarkers, Gynaecological cancers, Haematological malignancies, Immunotherapy of cancer, New diagnostic tools, NSCLC - early stage, locally advanced & metastatic, SCLC, Thoracic malignancies, Translational research

Topics

Clinical Research

Tumour Site

Melanoma

Presenters

Chia-Chi Lin

Citation

Annals of Oncology (2018) 29 (suppl_8): viii400-viii441. 10.1093/annonc/mdy288

Authors

C. Lin1, M. Taylor2, V. Boni3, P.F. Brunsvig4, S.L. Geater5, S. Salvagni6, P. Garrido Lopez7, M. Özgüroğlu8, V. Sriuranpong9, S. Ponce Aix10, P.A. Ascierto11, A. Fasolo12, A. Sezer13, D.M. Kowalski14, J.E. Faris15, S. Cameron15, J. Mataraza16, H. Wu17, V. Antona18, M. Ochoa de Olza19

Author affiliations

  • 1 Department Of Oncology, National Taiwan University Hospital, 100 - Taipei city/TW
  • 2 Division Of Hematology & Medical Oncology, Oregon Health & Science University, Portland/US
  • 3 Medical Oncology, START Madrid CIOCC Hospital Universitario Sanchinarro, Madrid/ES
  • 4 Department Of Oncology, Oslo University Hospital, 310 - Oslo/NO
  • 5 Internal Medicine, Prince of Songkla University, Songkhla/TH
  • 6 Policlinico S. Orsola-malpighi, Bologna University Hospital, Bologna/IT
  • 7 Medical Oncology, Hospital Universitario Ramon y Cajal, 28031 - Madrid/ES
  • 8 Medical Oncology, Istanbul University, Istanbul/TR
  • 9 Division Of Medical Oncology, Department Of Medicine, Faculty Of Medicine, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, 10330 - Bangkok/TH
  • 10 Medical Oncology, University Hospital 12 De Octubre, 28041 - Madrid/ES
  • 11 Melanoma, Cancer Immunotherapy And Development Therapeutics Unit, National Tumour Institute Fondazione G. Pascale, Naples/IT
  • 12 Oncology, San Raffaele Hospital, Milan/IT
  • 13 Department Of Medical Oncology, Başkent University Medical Faculty, Adana/TR
  • 14 Oncology, Maria Skłodowska-Curie Institute of Oncology, 02-781 - Warsaw/PL
  • 15 Translational Clinical Oncology, Novartis Institutes for BioMedical Research, 02139 - Cambridge/US
  • 16 Translational Immuno-oncology, Novartis Institutes for BioMedical Research, 02139 - Cambridge/US
  • 17 Biostatistics, Novartis Pharmaceuticals Corporation, East Hanover/US
  • 18 Translational Clinical Oncology, Novartis Institutes for BioMedical Research, 4002 - Basel/CH
  • 19 Research Unit For Molecular Therapy Of Cancer (uitm), Vall d’Hebron Institute of Oncology, Barcelona/ES
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Resources

Abstract 5089

Background

Spartalizumab is a humanized IgG4 anti-PD1 mAb, which has previously shown favorable PK and safety, and preliminary clinical activity.

Methods

This Phase I/II, open-label, dose escalation/expansion study (NCT02404441) characterized the safety and efficacy of spartalizumab in patients (pts) with advanced solid tumors. In dose escalation, the recommended Phase II dose was declared as 400 mg Q4W (alternative: 300 mg Q3W). Here, we present expansion data for anti-PD(L)1-naïve cohorts with advanced melanoma and NSCLC. PD-L1 expression was assessed centrally (Dako PD-L1 IHC 22C3 pharmaDx).

Results

As of Nov 13, 2017, 61 pts with melanoma received 400 mg spartalizumab Q4W; 36% of pts were treatment-naïve, 20% had ≥2 prior therapies, and all were anti-PD(L)1-naïve. Suspected-related AEs (all grades, ≥5%) were fatigue (15%), decreased appetite (11%), hypothyroidism (8%), rash (8%), asthenia (7%), vitiligo (7%). ORR (confirmed responses) was 26% (16/61), including 1 CR. 41 pts (67%) had baseline PD-L1 data: 63% were PD-L1– (TPS <1%). ORR was 40% (6/15) for PD-L1 + (TPS ≥1%) and 19% (5/26) for PD-L1– pts. 118 pts with NSCLC received 400 mg Q4W (n = 59) or 300 mg Q3W (n = 59); all pts had received prior treatment, 27% had ≥2 therapies. Suspected-related AEs (≥5%) were diarrhea, nausea, decreased appetite, hypothyroidism (5% each). ORR (confirmed responses) was 9% (11/118). 77 pts (65%) had baseline PD-L1 data: 61% were PD-L1–. More Q3W than Q4W treated pts were PD-L1– (70% vs 52%). ORR was 6% (3/47) in PD-L1–, 11% (1/9) in PD-L1 1–49%, and 19% (4/21) in PD-L1 ≥50%. ORR was lower in Q3W (5%; 3/59) than Q4W treated pts (14%; 8/59) but was higher in PD-L1+ pts in both groups (Q3W: 18.2% vs 3.8%, Q4W: 15.8% vs 9.5%). PK analyses confirmed flat dosing (Q3W or Q4W) achieved drug exposure comparable with weight-based dosing.

Conclusions

Spartalizumab was well tolerated with a manageable safety profile. Efficacy was observed in pts with NSCLC (Q3W and Q4W) and melanoma (Q4W), and was as expected given the high proportion of pts with PD-L1– disease. ORRs were higher in PD-L1+ pts, corroborating previous findings that PD-L1 expression enriches for response to anti-PD1 agents in certain tumor types.

Clinical trial identification

NCT02404441, CPDR001X2101.

Legal entity responsible for the study

Novartis Pharmaceutical Corporation.

Funding

Novartis Pharmaceutical Corporation.

Editorial Acknowledgement

Editorial assistance was provided by Laura Hilditch of ArticulateScience Ltd.

Disclosure

C-C. Lin: Consulting/advisory fees: Novartis, Boehringer Ingelheim; Expenses: Lilly. M. Taylor: Honoraria, consulting/advisory fees: BMS, Eisai, Novartis, Loxo, Blueprint; Speakers' bureau fees: BMS, Eisai; Expenses: BMS, Eisai, Loxo, Blueprint. S.L. Geater: Honoraria: AstraZeneca, Boehringer Ingelheim; Consulting/advisory fees: Boehringer Ingelheim; Research funding: AstraZeneca, Boehringer Ingelheim, Roche, Novartis. P. Garrido: Consulting/advisory fees: BMS, Novartis, AstraZeneca, Roche, MSD, Pfizer; Speakers' bureau fees: BMS, MSD, Roche, Pfizer, Gilead; Expenses from Roche, BMS, Gilead, MSD. M. Özgüroğlu: Honoraria: Janssen; Consulting/advisory fees: Janssen, Astellas. V. Sriuranpong: Honoraria, consulting/advisory fees, research funding: Novartis; P.A. Ascierto: Consulting/advisory fees: BMS, Roche-Genentech, MSD, Array, Novartis, Amgen, Merck Serono, Pierre-Fabre, Incyte, NewLink Genetics, Genmab, MedImmune, Sindax, AstraZeneca; Research funding: BMS, Roche-Genentech, Array. J.E. Faris: Employee: Novartis S. Cameron: Employee and has Stock: Novartis. J. Mataraza: Employee and has stock: Novartis; intellectual Property: Novartis, Merck. H. Wu: Employed and received expenses: Novartis. V. Antona: Employee and has stock: Novartis; Honoraria, expenses: Novartis. All other authors have declared no conflicts of interest.

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