Evaluation of the Performance and Safety of Hyalo Gyn® Gel Compared to Placebo in Postmenopausal Breast Cancer Survivors

This will be a prospective, randomized, controlled, 2-arms, placebo-controlled, double-blind, multicentre clinical investigation. Patients with good compliance and who are voluntary to sign the informed consent will be enrolled in a period time of approximately 6 months. The screened and eligible patients will be randomly assigned in one of the two groups: Group A will receive Hyalo Gyn® and Group B will receive Placebo. Neither the Investigator nor the Patient will be aware of the assigned treatment. Subjects of both groups will start the treatment with 1 application of Hyalo Gyn® gel or placebo gel, deeply in the vagina every 3 days (i.e. an application is followed by 2 days without application) up to a total of 12 consecutive weeks. After 12 weeks (i.e. at Visit 3), according to the status of dryness symptom, measured with the VRS dryness score from baseline to 12 weeks, patients will undergo different procedures for the second phase of the study as reported in the brief summary. Visits at the investigational site will be performed at screening/baseline (V0, Week 0) and every 4 weeks, alternated to telephone contacts by the clinician (V1, Week 4; T1, Week 6; V2, Week 8; T2, Week 10; V3, Week 12) up to the end of the first 12-week phase of the study. Two phone follow-up visits will be performed at Week 16 (T3) and Week 20 (T4), followed by a visit at the investigational site at the end of the second 12-week phase of the study (V4, Week 24). Visit 4 (Week 24) will represent the end of study visit. In case of premature withdrawal from the investigation for whatever reason an "Early termination Visit" will be performed, which will include all assessments foreseen for the final visit (Visit 4, Week 24 ± 5 days).