A Study of MEK162 and AMG 479 in Patients With Selected Solid Tumors

• Phase Ib: Estimation of Maximum Tolerated Doses (MTDs) and/or recommended Phase II doses (RP2Ds) by measuring incidence of dose limiting toxicities [ Time Frame: Approximately 6 months ] [ Designated as safety issue: Yes ]
  To estimate the MTDs and/or RP2Ds of MEK162 in combination with AMG479 by measuring incidence of dose limiting toxicities in Cycle 1 (Cycle 1 = 28 days)
• Phase II: Antitumor activity of MEK162 in combination with AMG 479 by evaluating Objective Response Rate (ORR) in colorectal carcinoma and melanoma and by evaluating Disease Control Rate (DCR) at week 10 in pancreatic carcinoma [ Time Frame: Approximately 24 months ] [ Designated as safety issue: Yes ]
  To estimate the antitumor activity of MEK162 in combination with AMG479 by evaluating Objective Response Rate (ORR) according to RECIST 1.1 in colorectal carcinoma and melanoma and by evaluating the Disease Control Rate (DCR) per RECIST 1.1 at week 10 in pancreatic carcinoma

• Both Phases: Safety and tolerability of MEK162 & AMG 479 (ganitumab) in combination by evaluating the adverse events, serious adverse events, changes in hematology and chemistry values, vital signs, ECGs; dose interruptions, reductions and dose intensity [ Time Frame: Phase Ib: Approximately 6 months; Phase II: Approximately 24 months ] [ Designated as safety issue: Yes ]
  To characterize the safety and tolerability of MEK162 and AMG 479 (ganitumab) in combination by evaluating the incidence and severity of adverse events, serious adverse events (as per CTCAE grading), changes in hematology and chemistry values, vital signs, ECGs; dose interruptions, reductions and dose intensity
• Both Phases: Determination of single and multiple dose pharmacokinetics (PK) profile of MEK162 in combination with AMG 479 (ganitumab) by measuring time vs. plasma concentrations and basic PK parameters of MEK162 [ Time Frame: Phase Ib: Approximately 6 months; Phase II: Approximately 24 months ] [ Designated as safety issue: No ]
  To determine single and multiple dose PK profile of MEK162 in combination with AMG 479 (ganitumab) by measuring time vs. plasma concentration as well as basic PK parameters of MEK162 at different timepoints prior and post study drug combination dosing.
• Phase Ib: Preliminary anti-tumor activity of MEK162 and AMG 479 (ganitumab) in combination by evaluating the Overall Response Rate (ORR), Duration of Response (DOR) and Progression Free Survival (PFS) [ Time Frame: Approximately 6 months ] [ Designated as safety issue: No ]
  To assess preliminary anti-tumor activity of MEK162 and AMG 479 (ganitumab) in combination by evaluating Overall Response Rate (ORR), Duration of Response (DOR), Progression Free Survival (PFS) as assessed by the investigator according to RECIST 1.1
• Phase II: Further anti-tumor activity of MEK162 & AMG 479 (ganitumab) in combination by evaluating the DOR, PFS and OS by evaluating Disease Control Rate for colorectal carcinoma and melanoma; Overall Response Rate for pancreatic carcinoma patients [ Time Frame: Approximately 24 months ] [ Designated as safety issue: No ]
  To further assess the anti-tumor activity of MEK162 and AMG 479 (ganitumab) in combination by evaluating the Duration of Response (DOR) and Progression Free Survival (PFS) per RECIST 1.1 and Overall Survival in all phase II patients and by evaluating the Disease Control Rate (DCR) per RECIST 1.1 for colorectal carcinoma and melanoma and Overall Response Rate (ORR) per RECIST 1.1 for pancreatic carcinoma patients

This is a multi-center, open-label, phase Ib/II study. First, the aim of the phase Ib part is to estimate the MTD(s) and/or to identify the recommended phase II dose(s) (RP2D) for the combination of MEK162 and AMG 479 (ganitumab), followed by the phase II part to assess the clinical efficacy and to further assess the safety of the combination in selected patient populations. The dose escalation part of the study will be guided by a Bayesian Logistic Regression Model (BLRM). At least 18 patients are expected to be enrolled in the dose escalation part.

Following MTD/ RP2D declaration, patients will be enrolled in three phase II arms to assess efficacy of the combination as well as to better understand the safety, tolerability, PK, antibody concentrations and PD of the combination at MTD/RP2D. Phase II arm 1 will consist of approximately 25 patients with KRAS-mutant colorectal adenocarcinoma. Phase II arm 2 will consist of approximately 20 patients with metastatic pancreatic adenocarcinoma. Phase II arm 3 will consist of approximately 28 patients with mutant BRAFV600 melanoma.

Patients will be treated until progression of disease, unacceptable toxicity develops, or withdrawal of informed consent, whichever occurs first. All patients will be followed up - at minimum patients must complete the safety follow-up assessments 30 days after the last dose of the study treatment. Patients who have not progressed at the time of discontinuation of study treatment should be radiologically followed for the disease status and phase II patients will be followed for survival.

• KRAS Mutated Colorectal Adenocarcinoma.
• Metastatic Pancreatic Adenocarcinoma
• BRAF Mutated Melanoma

• Experimental: Dose escalation,
  Intervention: Drug: MEK162 + AMG 479
• Experimental: KRAS mutated colorectal adenocarcinoma,
  Intervention: Drug: MEK162 + AMG 479
• Experimental: metastatic pancreatic adenocarcinoma,
  Intervention: Drug: MEK162 + AMG 479
• Experimental: BRAF mutated melanoma
  Intervention: Drug: MEK162 + AMG 479

Inclusion Criteria:

• Patients aged ≥ 18 years
• Patients with advanced solid tumors (CRC, melanoma) with documented somatic KRAS or BRAFV600 mutations in tumor tissue. Patients with metastatic pancreatic adenocarcinoma may be enrolled irrespectively of KRAS or BRAFV600 mutational status.
• Patients must have relapsed or progressed following standard therapy or patients for whom no standard anticancer therapy exists.
• Measurable disease as determined by RECIST v1.1. World Health Organization (WHO) Performance Status (PS) ≤ 2.
• Adequate organ function
• Negative serum pregnancy test

Exclusion Criteria:

• Prior therapy with MEK- or IGF-1R- inhibitor
• History or current evidence of central serous retinopathy (CSR), retinal vein occlusion (RVO) or retinal degenerative disease
• Patients with known history of severe infusion reactions to monoclonal antibodies
• Patients with primary CNS tumor or CNS tumor involvement
• History of thromboembolic event requiring full-dose anticoagulation therapy
• Clinically significant cardiac disease
• History of another malignancy within 2 years
• Pregnant or nursing (lactating) women

Other protocol-defined inclusion/exclusion criteria may apply