A Dose Escalation Study of Adavosertib(MK1775) in Combination With 5-FU or 5-FU/CDDP in Patients With Advanced Solid Tumor (1775-005

A Phase I Dose Escalation Study of MK1775 in Monotherapy, in Combination With 5-Fluorouracil, and in Combination With 5-Fluorouracil and Cisplatin in Patients With Advanced Solid Tumor

The study evaluates safety of adavosertib in monotherapy, and in combination with 5-Fluorouracil (5-FU) alone or with 5-FU/cis-diamminedichloroplatinum (CDDP) in Japanese participants with solid tumor. The primary hypothesis is that adavosertib is safe and tolerable in participants with locally advanced or metastatic solid tumors.

Inclusion Criteria:

• Parts 1 and 2-A: Patient must have a histologically or cytologically confirmed locally advanced or metastatic solid tumor failed to respond to standard therapy, progressed despite standard therapy, or for which standard therapy does not exist
• Parts 2-B and 3: Patient must have a histologically or cytologically confirmed locally advanced or metastatic esophageal, head and neck, or gastric cancer, and be a candidate of 5-Fluorouracil and Cisplatin regimen defined in this study
• Patient must have performance status of 0 or 1 on the ECOG Performance Scale

Exclusion Criteria:

• Patient who has had chemotherapy, radiotherapy, or biological therapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to the first dose of study drug or who has not recovered from adverse events due to agents administered more than 4 weeks earlier
• Patient with a known primary central nervous system tumor
• Patient has known hypersensitivity to any of the components of the combination study therapy or its analogs
• Patient is receiving "alternative" cancer medications such as plant-derived products and their analogs with anti-tumor activity within 1 week prior to entering the study.
• Patient must not have prior radiation therapy to more than 30% of the bone marrow and must have recovered for at least 3 weeks from the hematologic toxicity of prior radiotherapy