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Accelerated Partial Breast Irradiation Versus Standard or Hypofractionated Whole-Breast Irradiation, in Early Breast Cancer, After Breast-conserving Surgery (LAPIDARY)

4 mars 2021 mis à jour par: Eduardo Barbieri, Instituto Brasileiro de Controle do Cancer

Clinical Trial, Randomized, Open Label, With an Active Comparator to Assess the Efficacy and Safety of Using Accelerated Partial Irradiation Versus Standard or Hypofractionated Irradiation of the Entire Breast in Patients With Initial Breast Cancer After Conservative Surgery

Radiotherapy has been confirmed as an important treatment breast-conserving surgery reducing the risk of any recurrence of breast cancer and breast cancer-related mortality in patients with early breast cancer.

There are no comparative data on the ideal radiotherapy treatment regimen for patients with early stage breast cancer who underwent conservative surgery in the Brazilian population.

Aperçu de l'étude

Description détaillée

The investigators propose a prospective, randomized, pilot study, with active control, to evaluate the viability and safety of accelerated partial breast irradiation, in 5 fractions, comparing with the radiotherapy regimens of the whole breast in 15 and 5 fractions, in patients with breast cancer, in initial stage, who underwent conservative surgery.

Type d'étude

Interventionnel

Inscription (Anticipé)

36

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

  • Nom: Eduardo Barbieri
  • Numéro de téléphone: +551198639-1945
  • E-mail: edurxt@gmail.com

Sauvegarde des contacts de l'étude

Lieux d'étude

    • SP
      • Sao Paulo, SP, Brésil, 03102-002
        • Recrutement
        • IBCC Oncologia
        • Contact:
          • Eduardo Barbieri
          • Numéro de téléphone: +55 11 98639-1945
          • E-mail: edurxt@gmail.com
        • Chercheur principal:
          • Eduardo Barbieri
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

50 ans à 90 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Femelle

La description

Inclusion Criteria:

  • Information to the patient and signed informed consent;
  • Women aged ≥50 years
  • Breast conserving surgery
  • Pathologic tumor size < 3 cm (maximum microscopic diameter of the invasive component)
  • Invasive adenocarcinoma (except classic invasive lobular carcinoma)
  • Unifocal disease
  • Histopathologic grades I or II
  • Eastern Cooperative Oncology Group (ECOG) 0-1
  • Lymphovascular invasion absent
  • Negative axillary lymph nodes
  • Minimum microscopic margins of non-cancerous tissue of 2mm (excluding deep margin when in deep fascia)
  • No prior breast or mediastinal radiotherapy
  • No hematogenous metastases

Exclusion Criteria:

  • Previous malignancy (except non-melanomatous skin cancer)
  • Mastectomy
  • Classical-Type Invasive Lobular Carcinoma
  • Neoadjuvant chemotherapy
  • Human Epidermal growth factor Receptor-type 2 positive (HER2+)
  • Triple-negative breast cancers
  • Intravascular lymphoma present
  • Contraindications to radiotherapy.
  • No geographical, social or psychologic reasons that would prevent study follow

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: Active Comparator: Standard
Whole breast Radiotherapy, 40 Gray (40Gy) fractions
Radiation: Whole Breast Irradiation + Boost Whole breast, either 40Gy, in 15 fractions, in 3 weeks
Expérimental: Experimental 1: Hypofractionated radiotherapy
Whole breast Radiotherapy, 26 Gray (26Gy) in 5 fractions
Radiation: Hypofractionated irradiation Whole Breast Irradiation 26Gy in 5 fractions in one week
Expérimental: Experimental 2: Accelerated Partial Breast Irradiation
Partial Breast Irradiation 26 Gray (26Gy) to the tumor bed in 5 fractions.
Radiation: Accelerated partial breast irradiation Tumor bed 26Gy in 5 fractions, in 5 days.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Rate of local recurrence
Délai: 5 years
To estimate and compare the rate of local recurrence between the experimental and control arms.
5 years

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Time to occurrence of distant metastases
Délai: 5 years
Distant tumor time is defined as number of days from randomization until occurrence of distant metastases, death without prior distant progression, or end of follow-up.
5 years
Disease-free survival
Délai: 5 years
Disease-free survival, defined as number of days from randomization until the first occurrence of local recurrence, distant metastases, tumor-related death, death without prior progression, or end of follow-up.
5 years
Overall survival
Délai: 5 years
Overall survival time, defined as number of days from randomization until death or end of follow-up.
5 years
Medico-economic study
Délai: Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
To evaluate and compared the cost between Accelerated Partial Breast Irradiation with Standard and Hypofractionated irradiation
Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
Health-related Quality of Life
Délai: Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
To evaluate the patients quality of life with the help of the European Organization for Research and Treatment of Cancer Core Quality of Life Questionnaire (EORTC QLQ-C30). This questionnaire was designed to be cancer specific, multidimensional in structure, suitable for self-administration (brief and easy to complete), and applicable in a wide range of cultural contexts. The scores in each dimension are uniformly transformed to dimensions ranging from 0 to 100, with 0 denoting the negative (low functioning, high symptom burden) and 100 the positive end (high functioning, low symptom burden) of the continuum.
Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
Evaluation of quality of life change by European Organization for Research and Treatment of Cancer Breast-Cancer-Specific Quality of Life Questionnaire (EORTC QLQ-BR23)
Délai: Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
To evaluate the patient quality of life with the help of the European Organization for Research and Treatment of Cancer Breast-Cancer-Specific Quality of Life Questionnaire (EORTC QLQ-BR23). The 23-item EORTC QLQ BR23 contains two breast cancer specific functional scales (body image and sexuality) and three symptom scales evaluating arm symptoms, breast symptoms, and systemic therapy symptoms. The minimum and maximum values are 0 and 100, and higher scores mean a better outcome.
Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
Fatigue Questionnaire (Functional Assessment of Cancer Therapy-Fatigue - FACT-F)
Délai: Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
To evaluate the patient quality of life with the help of the Functional Assessment of Cancer Therapy-Fatigue (FACT-F). Scores are interpreted according to the guidelines of the Scoring Manual. The higher the number of points, the better the quality of life. To obtain the score, the negative questions are reverted; then the answers of the domains are added up, and a proportional average is carried out in case of non answered items.
Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
Measurement Satisfaction of Body Image of the participants
Délai: Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
To evaluate the patient quality of life and patient satisfaction with the help of the Body Image Scale (BIS). Scores are interpreted according to the guidelines of the Scoring Manual. The Body Image Scale (BIS) is a self-assessment scale designed to assess cancer patients' perceptions of their appearance and identify any changes to those perceptions resulting from a disease or a treatment. The total score ranges from 0 to 30. A higher score means a higher level of body image disturbance.
Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
Changes in anxiety and depression
Délai: Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
To evaluate the patient quality of life and patient satisfaction with the help of the Hospital Anxiety and Depression Scale (HADS). Scores for each sub scale (depression and anxiety) are summed-up and range from 0 to 21. Values from 0-7 indicate normal levels, 8-10 are border values and values from 11-21 are considered to be pathological.
Baseline and 3 months, 6 months, 12 months, 2 years, 5 years after treatment end
Early and late adverse effects in normal tissues
Délai: 5 years
To evaluate the results reported by patient and evaluated by doctors, as well as, photographic assessments.
5 years
Late adverse effects
Délai: 5 years
To evaluate if the patient had symptoms of swelling or edema in the arm, breast shrinkage, hardness, pigmentation, necrosis, pain and tenderness in the breast.
5 years
Acute toxicity rate
Délai: 5 years
To evaluate acute toxicity rate. The maximum grade for acute toxicity will be recorded for each patient at each treatment evaluation using Common Terminology Criteria for Adverse Events.
5 years

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

4 mars 2021

Achèvement primaire (Anticipé)

7 décembre 2025

Achèvement de l'étude (Anticipé)

31 décembre 2026

Dates d'inscription aux études

Première soumission

4 décembre 2020

Première soumission répondant aux critères de contrôle qualité

9 décembre 2020

Première publication (Réel)

17 décembre 2020

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

8 mars 2021

Dernière mise à jour soumise répondant aux critères de contrôle qualité

4 mars 2021

Dernière vérification

1 novembre 2020

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • 38341220.8.0000.0072

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Description du régime IPD

The findings will be shared and discussed with all investigators in the study. A study manuscript, having received contributions from all authors, will be submitted for publication in scientific circles.

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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