An Observational Study to Evaluate the Safety and Efficacy of Cetuximab in Combination With Platinum-based Chemotherapy in the First-line Treatment of Recurrent or Metastatic Squamous Cell Carcinoma of Head and Neck

Inclusion Criteria: * The study inclusion criteria is as per the label for patients with metastatic/recurrent SCCHN approved by India Health Authorities, i.e., "Cetuximab is indicated for the treatment of patients with squamous cell cancer of the head and neck in combination with platinum-based chemotherapy for recurrent and/or metastatic disease." * For each platinum-based chemotherapy, the related product labels approved by India Health Authorities will also be followed strictly in terms of patient eligibility. Exclusion Criteria: * Patients with known severe (grade 3 or 4; National Cancer Institute-Common Toxicity Criteria \[NCI-CTC\]) hypersensitivity reactions to Cetuximab are contraindicated for Cetuximab