# Andrea DeCensi

Source: https://onco.cc/people/andrea-decensi/  
OnCo record `andrea-decensi` (Person). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Italian oncologist who led TAM-01, the trial that showed a low dose of tamoxifen halves recurrence after non-invasive breast cancer with fewer side effects than the standard dose.

## Summary

Andrea DeCensi is a medical oncologist at Galliera Hospital in Genoa who has spent his career on breast cancer prevention. He was first author of the 2019 Journal of Clinical Oncology report of TAM-01, an Italian trial in which tamoxifen at 5 mg a day for three years reduced recurrence and new breast cancers after ductal carcinoma in situ and other non-invasive lesions, with a toxicity profile little different from placebo. Low-dose tamoxifen is now an option in guidelines for risk reduction.

## Fields

- Kind: Person
- Last checked: 2026-09-18
- Tags: breast; prevention; trialist
- Role: Medical oncologist, E.O. Ospedali Galliera, Genoa
- Specialisms: Breast cancer prevention; Low-dose tamoxifen; Chemoprevention trials

## Connected records

- cancers: [Breast cancer (all types)](https://onco.cc/cancers/breast-cancer/), [Ductal carcinoma in situ (DCIS)](https://onco.cc/cancers/ductal-carcinoma-in-situ/)
- institutions: [E.O. Ospedali Galliera](https://onco.cc/institutions/ospedali-galliera/)
- trials: [TAM-01](https://onco.cc/trials/tam-01/)

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JSON: https://onco.cc/api/v1/entities/andrea-decensi.json