Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 65 and up Women only

Per-operative radiotherapy for localized breast cancer in older women

Official title: Per-Operative Radiotherapy (RPO) by Papillon +TM in Localized Breast Cancer : Faisability and Toxicity Study

Run by Centre Antoine Lacassagne · NCT04680715 · Data updated 2026-11-12

This study is testing a new type of radiation treatment during surgery for older women with small breast cancer to see if it's safe and effective.

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Quick facts

PhasePhase 2
Study typeInterventional
Ages65 Years and up
SexWomen only
Enrollment40 (estimated)
SponsorCentre Antoine Lacassagne
Academic / other
Locations2 sites (Clermont-Ferrand and 1 other locations)
StatusRecruiting
StartedJuly 16, 2021
Main results expectedJune 2027
Study endsJune 2028
Registry record updatedJanuary 29, 2026
Trial IDNCT04680715 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 65 years or older with operable invasive ductal adenocarcinoma that is 2 cm or less in size.

Probably not a fit

Patients with metastatic disease, multifocal tumors, or those under 65 years of age will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase II clinical trial evaluates the feasibility and toxicity of using the PAPILLON +TM device for per-operative radiotherapy in patients with localized breast cancer who are 65 years or older. The study focuses on women with invasive ductal adenocarcinoma measuring 2 cm or less, and aims to determine the safety and effectiveness of this innovative treatment approach. Participants will be monitored for any adverse effects during the treatment process. The trial is multicentric and open for recruitment across specific locations in France.

Why it matters

Potential benefit: If successful, this treatment could provide a less invasive option for older women with localized breast cancer, potentially improving their quality of life and treatment outcomes.

How similar studies have gone: While this approach is innovative, similar studies using per-operative radiotherapy techniques have shown promise, suggesting potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient with invasive ductal adenocarcinoma \<=2cm, evaluate on all radiological exams;
* Women aged 65 years or older (patients 65 years of age in the year may be included);
* Grade 1 or 2 unifocal adenocarcinoma, all index KI67, positive HR, negative HER2 status;
* T0 or T1, N0 radio-clinic;
* Operable patient with breast volume compatible with conservative surgery;
* Patient with prior malignancy or other concurrent malignancies are eligible, including bilateral breast cancer
* Patients who have been made aware of the information sheet and have given their written signed informed consent;
* Patients benefitting from social health insurance coverage

Exclusion Criteria:

* Age less than 65 years (except if 65 years obtained during the year)
* Patient with an exclusive in situ carcinoma
* Patient with lymphatic invasion / peri-nerve involvement / vascular emboli
* Patient with a lobular adenocarcinoma
* Patient with metastatic disease
* Multifocal tumor
* Patient with grade 3 or N+ disease
* N1 proved by ultrasound guided
* patient unable to express her consent
* Patient deprived placed under the authority of a tutor
* Female patients who are pregnant or breastfeeding
* Vulnerable patient: as defined in article L1121-5 à -8

Where it's running

  • Centre Antoine Lacassagne
    Nice, France
    Recruiting
  • Pôle Santé République
    Clermont-Ferrand, France
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.