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Men and women, aged 18 or older |
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Willingness to provide written informed consent for the study |
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Phase 1: Participants with locally advanced or metastatic solid tumors for which a PD-1 inhibitor is indicated (locally advanced disease must not be amenable to resection with curative intent) that have failed a PD-1/PD-L1 inhibitor therapy |
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PD should be based on imaging done at least 4 weeks apart |
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Phase 2: Participants with histologically confirmed recurrent Stage III and Stage IV melanoma who relapsed during therapy with anti-PD-1 given as adjuvant therapy |
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Participants should have no more than one prior therapy given as adjuvant treatment |
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Participants in Stage 1 (n = 13) and Stage 2 (n = 21) of Phase 2 should have documented LAG-3 positive expression (≥ 5%) by IHC |
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Participants should be documented BRAF mutation negative |
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Participants must have fresh biopsy available after completing adjuvant therapy or be willing and able to safely undergo pretreatment tumor biopsies (core or excisional) |
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ECOG performance status 0 or 1 |
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Willingness to avoid pregnancy or fathering children |
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Laboratory and medical history parameters outside the protocol-defined range
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Known hypersensitivity or severe reaction to any component of the study drugs or formulation components ) within 14 days before study Day 1
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Administration of colony-stimulating factors within 14 days before study Day 1
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Receipt of a live vaccine within 30 days of planned start of study treatment
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Receipt of anticancer medications or investigational drugs within the following intervals before the first administration of study treatment
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Phase 1
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≤ 14 days for chemotherapy, targeted small molecule therapy, or radiation therapy. Participants must also not require chronic use of corticosteroids and must not have had radiation pneumonitis as a result of treatment. A 1-week washout is permitted for palliative radiation to non-CNS disease with medical monitor approval
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≤ 14 days and resolution of all associated toxicities for prior immunotherapy or persistence of active cellular therapy c. < 14 days for prior PD-1 pathway-targeted agents (for Phase 1 and Phase 2)
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≤ 28 days for a prior mAb used for anticancer therapy with the exception of PD-1 pathway-targeted agents and denosumab
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≤ 7 days for immune-suppressive-based treatment for any reason. f. ≤ 28 days or 5 half-lives (whichever is longer) before the first dose for all other investigational agents or devices. For investigational agents with long half-lives (eg, > 5 days), enrollment before the fifth half-life requires medical monitor approval
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Has not recovered to ≤ Grade 1 from toxic effects of prior therapy (including prior immunotherapy) and/or complications from prior surgical intervention before starting therapy
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Phase 2
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Receipt of any anticancer medication other than adjuvant anti-PD-1 therapy
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Receipt of PD-1 pathway-targeted inhibitors within 14 days before the first administration of study treatment
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Unknown LAG-3 status or LAG-3 positive > 0% but < 5%
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