RecruitingPhase 1Drug trialOpen-label Phase 1b Study of Ulixertinib and Cetuximab or Ulixertinib in Combination With Cetuximab and Encorafenib in Patients With Unresectable or Metastatic Colorectal Cancer Who Have Previously Received EGFR or BRAF-directed TherapyTo find the recommended dose of ulixertinib that can be given in combination with cetuximab and/or encorafenib to patients with unresectable/metastatic CRC and who have received EGFR or BRAF-directed therapy in the past.