High dose craniospinal irradiation as independent risk factor of permanent alopecia in childhood medulloblastoma survivors: cohort study and literature review.

PURPOSE: Our aim was to determine the main risk factors related to the occurrence of permanent alopecia in childhood medulloblastoma (MB) survivors. METHODS: We retrospectively analyzed the clinical features of all consecutive MB survivors treated at our institute. We divided the patients into 3 groups depending on the craniospinal irradiation (CSI) dose received and defined permanent alopecia first in terms of the skin region affected (whole scalp and nape region), then on the basis of the toxicity degree (G). Any relationship between permanent alopecia and other characteristics was investigated by a univariate and multivariate analysis and Odds ratio (OR) with confidence interval (CI) was reported. RESULTS: We included 41 patients with a mean10-year follow-up. High dose CSI resulted as an independent factor leading to permanent hair loss in both groups: alopecia of the whole scalp (G1 p-value 0.030, G2 p-value 0.003) and of the nape region (G1 p-value 0.038, G2 p-value 0.006). The posterior cranial fossa (PCF) boost volume and dose were not significant factors at multivariate analysis neither in permanent hair loss of the whole scalp nor only in the nuchal region. CONCLUSION: In pediatric patients with MB, the development of permanent alopecia seems to depend only on the CSI dose ≥ 36 Gy. Acute damage to the hair follicle is dose dependent, but in terms of late side effects, constant and homogeneous daily irradiation of a large volume may have a stronger effect than a higher but focal dose of radiotherapy.

New European Clinical Trial Regulation: perception and expectations in Italy.

BACKGROUND: In July 2012, the European Commission formalized the proposal for a European Clinical Trial Regulation that should replace the European Clinical Trials Directive 2001/20/CE. The new Regulation 536/2014 entered into force in June 2014 and it was expected to be applied not earlier than May 2016. Indeed, at the time, all required central tools are not yet available and new forecasts indicate it will become effective at the end of 2018. The aims of the Regulation are the promotion of higher standards in patient's safety and increasing transparency in Clinical Trials, also by changing the application process. METHODS: An online survey was conducted among the Italian's Clinical Research Coordinators and Clinical Investigators to examine the perception and knowledge about the upcoming changes in Clinical Trials. A total of 190 Clinical Research Coordinators and 80 Clinical Investigators were surveyed. RESULTS: Clinicians are less aware of the content of the Regulation than Clinical Research Coordinators, who demonstrate an extensive expertise on the topic (84.4%), mainly reached through self-training. The majority of the Investigators (74%) believes that their site's facilities and staff already met all the requirements imposed by the Regulation while Clinical Research Coordinators are less optimistic: 65.2% of them believes that the site staff is not yet fully aware of changes associated to its implementation. CONCLUSIONS: The general opinion of the interviewed is that the new Regulation will strongly affect the trial management regardless of their type and phase, and the fulfillment of the imposed requirements represents an opportunity that Italy should not miss to increase its attractiveness to the pharmaceutical market.