Impact of Neoadjuvant Hormonal Therapy on the Surgical Management of Extensive Ductal Carcinomas in Situ
Recruiting now · Phase 2
Conditions studied: Ductal Carcinoma in Situ, Extensive Disease, Mastectomy
In brief
Ductal carcinoma in situ (DCIS) accounts for approximately 20% of newly diagnosed breast cancer cases. Of these women, 20% require radical management in the form of mastectomy because of the extent of the lesions, which most often manifest as diffuse microcalcifications. This mutilating surgical management contrasts with the excellent prognosis of this pathology and considerably alters the quality of life of patients. Neoadjuvant hormone therapy has shown its efficacy in hormone-dependent infiltrating ductal carcinomas and offers the possibility of conservative surgery after hormone therapy. Adjuvant hormone therapy with Tamoxifen or anti-aromatase drugs has shown its efficacy in the prevention of homo or contralateral recurrence. The HORNEO 01 trial fits perfectly in the current context of surgical de-escalation of ductal carcinomas in situ. The objective of the study is to evaluate the impact of neoadjuvant hormone therapy on the surgical management of extensive DCIS.
Key facts
- Study ID
- NCT04666961
- Run by
- Institut Cancerologie de l'Ouest
- People needed
- 262
- Starts
- 2021-02-03
- Expected to finish
- 2033-08-01
- Last updated by the study team
- 2022-04-22
Who can join
Age: 40 and older. Sex: female. Healthy volunteers: not accepted.
You may qualify if…
- Patient ≥ 40 years old
- Histological diagnosis of ductal carcinoma in situ without infiltrating contingent
- Clinical T0N0
- Estrogen receptor positive (OR+) regardless of progesterone receptor (PR) status
- Indication for mastectomy
- DCIS visible on MRI performed with clip sequence
- Effective contraceptive method for women of childbearing age who are sexually active and who have reported sexual activity.
- Informing the patient and obtaining free, informed and written consent signed by the patient and the investigator.
- Affiliated patient or beneficiary of the social security system.
You may not qualify if…
- Invasive breast carcinoma
- Lobular carcinoma in situ
- pN+ patient
- Indication for conservative surgery
- Contraindications to anastrozole or tamoxifen
- Concomitant treatments that may interact and reduce the efficacy of tamoxifen by interaction with cytochrome CYP2D6.
- Histologically proven multifocal lesion
- Contraindication to breast MRI (pace maker, heart valve, metallic implant, neuronal or peripheral stimulator, severe claustrophobia, ...)
- History of homolateral breast cancer
- Ongoing contralateral breast cancer
- Known mutation BRCA1 BRCA2
- Other cancer in progress at inclusion
- Pregnant woman, or breastfeeding,
- Persons deprived of liberty or under guardianship or trusteeship,
- Impossibility to undergo the medical follow-up of the trial for geographical, social, psychic or psychiatric reasons.
Where it is running
- ICO - Site Paul Papin — Angers, France (enrolling)
- Institut Bergonie — Bordeaux, France (enrolling)
- Institut de cancérologie de Montpellier — Montpellier, France (enrolling)
- Centre Antoine Lacassagne — Nice, France (enrolling)
- IUCT-O — Toulouse, France (enrolling)
- Hopital Saint Joseph — Paris, France (enrolling)
- Institut de Cancérologie de l'Ouest — Saint-Herblain, France (enrolling)
- Institut Curie - Site de Paris — Paris, France
Full record on ClinicalTrials.gov
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