Inclusion Criteria:  Male or female aged from 4 up to 16 weeks (44-56 weeks of gestational age) at the day of randomization Parents/caregivers are willing to and able to give informed consent form for the participation in the study Parents/caregivers are willing to and able to comply with all study requirements Definite diagnosis of TSC according to the Consensus criteria (Northrup,2013) At least 1 focus of cortical dysplasia disclosed on brain MRI  Exclusion Criteria:  history of seizures prior to randomization, history of antiepileptic treatment, history of treatment with mTOR (mammalian Target of Rapamycin) inhibitor, gestational age below 44 weeks at the day of randomization, body weight lower than 3 kg at the day of randomization, SEGA (Subependymal Giant Cell Astrocytoma) or other TSC-associated lesion requiring urgent surgical intervention recent surgery within 1 month prior to the randomization intercurrent infection at the date of randomization known history of HIV seropositivity live vaccination within 1 month prior to randomization* lack of first TBC and hepatitis B vaccinations Any significant clinical, laboratory , ECG or other abnormalities, comorbidity or concomitant treatment which, in the opinion of the investigator, may either put a patient at significant risk associated with the participation in the study or may influence the results of the study. Use of an investigational drug within 1 month prior to randomization.