Patient description: The patient is a 3-day-old female infant with jaundice that started one day ago. She was born at 34w of gestation and kept in an incubator due to her gestational age. Vital signs were reported as: axillary temperature: 36.3°C, heart rate: 154 beats/min, respiratory rate: 37 breaths/min, and blood pressure: 65/33 mm Hg. Her weight is 2.1 kg, length is 45 cm, and head circumference 32 cm. She presents with yellow sclera and icteric body. Her liver and spleen are normal to palpation. Laboratory results are as follows: Serum total bilirubin: 21.02 mg/dL Direct bilirubin of 2.04 mg/dL AST: 37 U/L ALT: 20 U/L GGT: 745 U/L Alkaline phosphatase: 531 U/L Creatinine: 0.3 mg/dL Urea: 29 mg/dL Na: 147 mEq/L K: 4.5 mEq/L CRP: 3 mg/L Complete blood cell count within the normal range. She is diagnosed with neonatal jaundice that may require phototherapy.

Clinical trial eligibility criteria: eligible ages (years): 0.0-999.0,  Adult Cholangiocarcinoma Advanced Adult Hepatocellular Carcinoma BCLC Stage C Adult Hepatocellular Carcinoma BCLC Stage D Adult Hepatocellular Carcinoma Hilar Cholangiocarcinoma Localized Non-Resectable Adult Liver Carcinoma Recurrent Adult Liver Carcinoma Recurrent Childhood Liver Cancer Recurrent Extrahepatic Bile Duct Carcinoma Recurrent Gallbladder Carcinoma Stage II Gallbladder Cancer Stage III Childhood Hepatocellular Carcinoma Stage IIIA Gallbladder Cancer Stage IIIB Gallbladder Cancer Stage IV Childhood Hepatocellular Carcinoma Stage IV Distal Bile Duct Cancer Stage IVA Gallbladder Cancer Stage IVB Gallbladder Cancer Unresectable Extrahepatic Bile Duct Carcinoma Patients must have histologically or cytologically documented carcinoma primary to the intra or extra-hepatic biliary system or gall bladder with clinical and/or radiologic evidence of unresectable, locally advanced or metastatic disease; patients with ampullary carcinoma are not eligible Patients must have measurable disease; computed tomography (CT) scans or magnetic resonance imaging (MRI)s used to assess measurable disease must have been completed within 28 days prior to registration; CT scans or MRIs used to assess non-measurable disease must have been completed within 42 days prior to registration; all disease must be assessed and documented on the Baseline Tumor Assessment Form (Response Evaluation in Solid Tumors [RECIST] 1.1) PRIOR/CONCURRENT Patients must have completed any prior chemotherapy at least 21 days prior to registration and have recovered from any of the effects AND Patients must have experienced progression to no more than 1 prior regimen of systemic chemotherapy for advanced biliary cancer OR Patients who received adjuvant chemotherapy and had evidence of disease recurrence within 6 months of completion of the adjuvant treatment are also eligible; if patient received adjuvant treatment and had disease recurrence after 6 months, patients will only be eligible after failing one regimen of systemic chemotherapy used to treat the (unresectable or metastatic) disease recurrence Patients must not have been treated with prior MEK inhibitors; prior 5-FU or capecitabine treatment is allowed only if given as a radiosensitizer concurrently with radiation therapy at least 12 weeks prior to registration or if given as part of any adjuvant therapy regimen >= 12 months prior to study enrollment Patients must have no plans to receive concurrent chemotherapy, hormonal therapy, radiotherapy, immunotherapy or any other type of therapy (including herbal or natural supplements) for treatment of cancer while on this treatment protocol For patients who have received prior cryotherapy, radiation therapy, radiofrequency ablation, therasphere, ethanol injection, transarterial chemoembolization (TACE) or photodynamic therapy, the following must be met