Avelumab in patients with previously treated metastatic melanoma: Phase 1b results from the JAVELIN Solid Tumor trial

Ulrich Keilholz, Janice M. Mehnert, Sebastian Bauer, Hugues Bourgeois, Manish R. Patel, Donald Gravenor, John J. Nemunaitis, Matthew H. Taylor, Lucjan Wyrwicz, Keun Wook Lee, Vijay Kasturi, Kevin Chin, Anja Von Heydebreck, James L. Gulley

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Abstract

Background: We report phase 1b data from patients enrolled in the JAVELIN Solid Tumor clinical trial (NCT01772004) with unresectable stage IIIC or IV melanoma that had progressed after ≥1 line of therapy for metastatic disease. Patients and methods: Patients received avelumab (10 mg/kg) - a human anti-PD-L1 antibody. Assessments included objective response rate (ORR), progression-free survival (PFS), overall survival (OS), and safety. Results: As of December 31, 2016, 51 patients were treated and followed for a median of 24.2 months (range, 16.1-31.5). Most patients had cutaneous (n = 28 [54.9%]) or ocular (n = 16 [31.4%]) melanoma and had received a median of 2 prior lines of therapy (range, 0-4), including ipilimumab (n = 26 [51.0%]). The confirmed ORR was 21.6% (95% CI, 11.3-35.3; complete response, 7.8%; partial response, 13.7%). The median duration of response was not estimable (95% CI, 2.6 months-not estimable). Median PFS and OS were 3.1 months (95% CI, 1.4-6.3) and 17.2 months (95% CI, 6.6-not estimable), respectively. Subgroup analyses suggested meaningful clinical activity (ORR [95% CI]) in patients with non-ocular melanoma (31.4% [16.9-49.3]), PD-L1-positive tumors (42.1% [20.3-66.5]), or prior ipilimumab therapy (30.8% [14.3-51.8]). Thirty-nine patients (76.5%) had a treatment-related adverse event (TRAE), most commonly infusion-related reaction (29.4%), fatigue (17.6%), and chills (11.8%); 4 patients (7.8%) had a grade 3 TRAE. Five patients (9.8%) had an immune-related TRAE (all were grade 1/2). No grade 4 TRAEs or treatment-related deaths were reported. Conclusion: Avelumab showed durable responses, promising survival outcomes, and an acceptable safety profile in patients with previously treated metastatic melanoma. Trial registration: ClinicalTrials.gov identifier: NCT01772004.

Original languageEnglish
Article number12
JournalJournal for ImmunoTherapy of Cancer
Volume7
Issue number1
DOIs
StatePublished - 16 Jan 2019

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Keywords

  • Avelumab
  • Cutaneous melanoma
  • Immune checkpoint inhibitor
  • Ocular melanoma
  • PD-L1

Cite this

Keilholz, U., Mehnert, J. M., Bauer, S., Bourgeois, H., Patel, M. R., Gravenor, D., Nemunaitis, J. J., Taylor, M. H., Wyrwicz, L., Lee, K. W., Kasturi, V., Chin, K., Von Heydebreck, A., & Gulley, J. L. (2019). Avelumab in patients with previously treated metastatic melanoma: Phase 1b results from the JAVELIN Solid Tumor trial. Journal for ImmunoTherapy of Cancer, 7(1), [12]. https://doi.org/10.1186/s40425-018-0459-y