Potential Biomarkers for Bevacizumab-Induced High Blood Pressure in Patients With Solid Tumor

Inclusion Criteria: Patients with stage IV or unresectable recurrent cancer (except for renal cell carcinoma and glioblastoma multiforme) that will get bevacizumab as a standard of care, as well as patients about to initiate bevacizumab within the protocols: * ECOG5103: A Double-Blind Phase III Trial of Doxorubicin and Cyclophosphamide followed by Paclitaxel with Bevacizumab or Placebo in Patients with Lymph Node Positive and High Risk Lymph Node Negative Breast Cancer. * ECOG1505: A Phase III Randomized Trial of Adjuvant Chemotherapy With or Without Bevacizumab for Patients With Completely Resected Stage IB (\> 4 cm) - IIIA Non-Small Cell Lung Cancer (NSCLC) * ECOG5202: A Randomized Phase III Study Comparing 5-FU, Leucovorin and Oxaliplatin versus 5-FU, Leucovorin, Oxaliplatin and Bevacizumab in Patients with Stage II Colon Cancer at High Risk for Recurrence to Determine Prospectively the Prognostic Value of Molecular Markers * ECOG1305: Phase III Randomized Trial of Chemotherapy With or Without Bevacizumab in Patients with Recurrent or Metastatic Head and Neck Cancer * GOG0252: A Phase III Clinical Trial of Bevacizumab With IV Versus IP Chemotherapy in Ovarian, Fallopian Tube and Primary Peritoneal Carcinoma * GOG0086P: A Three Arm Randomized Phase II Study of Paclitaxel/Carboplatin/Bevacizumab, Paclitaxel/Carboplatin/Temsirolimus, and Ixabepilone/Carboplatin/Bevacizumab as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer (Only those arms including bevacizumab) * GOG0250: A Randomized Phase III Evaluation of Docetaxel and Gemcitabine Plus G-CSF with Bevacizumab Versus Docetaxel and Gemcitabine Plus G-CSF with Placebo in the Treatment of Recurrent or Advanced Leiomyosarcoma of the Uterus * GOG0240: A Randomized Phase III Evaluation of Docetaxel and Gemcitabine Plus G-CSF with Bevacizumab Versus Docetaxel and Gemcitabine Plus G-CSF with Placebo in the Treatment of Recurrent or Advanced Leiomyosarcoma of the Uterus * THO0640: A Phase II Multi Center Study Investigating Translational Science in Chemotherapy-Naïve Patients with Stage IIIB or IV Non-Small Cell Lung Cancer (NSCLC) treated with the EGFR-TKI, Erlotinib (SPECS) Eligibility Criteria: * Patients ≥ 18 years of age with stage IV or unresectable recurrent cancer (except for renal cell carcinoma and glioblastoma multiforme) that will get bevacizumab as a standard of care. * Patients ≥ 18 years of age with histologically confirmed breast, colorectal or non-small cell lung (NSCL) cancer that have completed surgical treatment for stages I - III cancer and are going to initiate adjuvant therapy within one of the 3 clinical trials addressing the role of bevacizumab added to chemotherapy in the adjuvant setting of breast, colorectal and NSCL cancer (E5103, E1505 and E5202) * Patients ≥ 18 years of age with histologically confirmed squamous cell carcinoma of the head and neck (recurrent or metastatic) who are about to initiate chemotherapy with or without bevacizumab within E1305 clinical trial. * Patients ≥ 18 years of age who are about to initiate chemotherapy with bevacizumab within the following trials: GOG0252, GOG0086P (only those patients receiving bevacizumab arms), GOG0250, and GOG0240. * Patients ≥ 18 years of age with a histologic diagnosis of non small cell lung cancer who are about to initiate bevacizumab within THO0640 clinical trial. * Patients must provide informed written consent. Ineligibility Criteria \- Patients with active renal cell carcinoma or glioblastoma multiforme