OBJECTIVES::  Although real world studies are essential to decision-making, they remain scarce in Brazil. Several real world databases are available in the country, most of them from the public setting. Conversely, few databases from the private setting are currently available, hampering the development of real world studies in the private scenario, which represents more than 47 million people. The aim of this study is to describe cancer profile in the Auditron database, an auditing claims database of the private setting. METHODS::  We reviewed all cancer-related (chemotherapy and supportive treatment) prescriptions in the Auditron claims data from October 2011 to February 2017. Descriptive analyses were performed for the main characteristics of the patients and tumors. RESULTS::  We identified 39,224 cancer-related prescriptions in 13,780 patients in the whole period. Most of the patients were women (59.6%) aged >60 years with mean ± SD weight and height 69.7±16.6 Kg and 1.63±0.15 m, respectively. The majority of patients were treated in São Paulo state and presented stage IV cancer (26.5%), followed by stage III (16.4%), II (13.7%) and I (10.5%). The most common types of cancer were breast cancer (30.1%, n=4,148), prostate cancer (10.8%, n=1,488), colorectal cancer (6.8%, n=937) and lung cancer (6.3%, n=868). Regarding treatment intention, 31.4% were palliative, 5.8% were curative and 26.1% were adjuvant. CONCLUSIONS::  This study describes the profile of oncologic patient in Auditron database. In the private setting, breast and prostate cancer are also the most prevalent, corroborating data from the Brazilian National Cancer Institute (INCA). Therefore, to comprehend the patient profile in the private setting it is important to plan health policies and healthcare use that are specific in some kinds of tumors.