No. There are no scientific studies that have linked genetically modified foods to oncological processes.
The recommendation to follow a healthy and balanced diet based on the Mediterranean diet can be made whilst including genetically modified foods, as the European Union guarantees their safety. In addition, regulations make it compulsory to label all genetically modified foods and the ingredients containing or produced from genetically modified organisms (GMOs). Thus, whether to include them in your diet or not is a personal choice.