Cette page a été traduite automatiquement et l'exactitude de la traduction n'est pas garantie. Veuillez vous référer au version anglaise pour un texte source.

Safety and Efficacy of Zoledronic Acid in Patients With Breast Cancer With Metastatic Bone Lesions

9 avril 2012 mis à jour par: Novartis Pharmaceuticals

A Prospective, Randomized, Multi-center Comparative 2-arm Trial of Efficacy and Safety of Zoledronic Acid (Every 3-months vs. Every 4 Weeks) Beyond Approximately 1 Year of Treatment With Zoledronic Acid in Patients With Bone Lesions From Breast Cancer

The objective of this study is to assess the clinical benefit of two different dosing schedules of zoledronic acid in patients with metastatic bone lesions from breast cancer who have already been treated with zoledronic acid for about one year.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Réel)

430

Phase

  • Phase 3

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.

Lieux d'étude

  • Italie
      • Forlì, Italie
        • Novartis Investigative Site

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

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Femelle

La description

Inclusion criteria:

  • Female patients ≥ 18 years of age.
  • Written informed consent given.
  • Histologically confirmed Stage IV breast cancer with at least one bone metastasis radiologically confirmed.
  • Previous treatment with zoledronic acid every 3-4 weeks, for 9-12 infusions over no more than 15 months.
  • Eastern Cooperative Oncology Group (ECOG) performance status ≤2 .
  • Life expectancy ≥ 1 year.

Exclusion criteria:

  • More than 3 months since last infusion of Zoledronic Acid (Zometa®).
  • Treatments with other bisphosphonate than Zoledronic Acid (Zometa®) at any time prior to study entry.
  • Serum creatinine > 3 mg/dL (265 μmol/L) or calculated (Cockcroft-Gault formula) creatinine clearance (CLCr) < 30 mL/min CrCl = ({[140-age (years)] x weight(kg)}/ [72 x serum creatinine (mg/dL)])x 0.85
  • Corrected (adjusted for serum albumin) serum calcium < 8 mg/dl (2 mmol/L) or > 12 mg/dL ( 3.0 mmol/L).
  • Current active dental problem including infection of the teeth or jawbone (maxilla or mandibular); dental or fixture trauma, or a recurrent or prior diagnosis of osteonecrosis of the jaw (ONJ), of exposed bone in the mouth, or of slow healing after dental procedures.
  • Recent (within 6 weeks) or planned dental or jaw surgery (e.g. extraction, implants).
  • Pregnant patients (with a positive pregnancy test prior to study entry) or lactating patients. Women of childbearing potential not using effective methods of birth control (e.g. abstinence, oral contraceptives or implants, IUD, vaginal diaphragm or sponge, or condom with spermicide).
  • History of non-compliance to medical regimens or potential unreliable behavior.
  • Known sensitivity to study drug(s) or class of study drug(s).
  • Patients with severe medical condition(s) that in the view of the investigator prohibits participation in the study
  • Use of any other investigational agent in the last 30 days.

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
Expérimental: Every 3 months
Zoledronic acid as a 15-minute (at least) intravenous (i.v.) infusion every three months. The dose of study drug will be the same administered before the study entry, that is 4 mg or a reduced dose, i.e. 3.5 mg, or 3.3 mg or 3.0 mg. Randomized patients will receive a maximum of 4 infusions in this group.
Médicament: Zoledronic acid
Zoledronic acid as a 15-minute (at least) intravenous (i.v.) infusion. The dose of study drug will be the same administered before the study entry, that is 4 mg or a reduced dose, i.e. 3.5 mg, or 3.3 mg or 3.0 mg.
Autres noms:
  • ZOL446
  • Zometa®
Expérimental: Every 4 weeks
Zoledronic acid as a 15-minute (at least) intravenous (i.v.) infusion every 4 weeks. The dose of study drug will be the same administered before the study entry, that is 4 mg or a reduced dose, i.e. 3.5 mg, or 3.3 mg or 3.0 mg. Patients randomized to this group will receive up to 12 infusions.
Médicament: Zoledronic acid
Zoledronic acid as a 15-minute (at least) intravenous (i.v.) infusion. The dose of study drug will be the same administered before the study entry, that is 4 mg or a reduced dose, i.e. 3.5 mg, or 3.3 mg or 3.0 mg.
Autres noms:
  • ZOL446
  • Zometa®

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Annual Overall Skeletal Morbidity Rate (SMR)
Délai: 12 months

The SMR was computed by summing all Skeletal Related Event(s) (SREs)which occurred during the observation period and dividing it by the ratio "days of observation period / 365.25", for each participant. SRE was defined as: pathologic bone fracture, spinal cord compression, surgery to bone both curative and prophylactic, radiation therapy to bone, or hypercalcemia of malignancy.

SMR (years) = 365.25 x SMR(days) where SMR (days) = total number of SREs / total SRE risk period (days). Risk period for SMR was computed as the days from randomization date to the date of last visit.
12 months

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Percentage of Participants Experiencing Skeletal Related Event(s) (SREs)
Délai: 12 month

Skeletal Related Events (SREs) are defined as a:

  • pathologic bone fracture such as non-vertebral and vertebral compression fractures
  • spinal cord compression identified by positive diagnosis documented by X-ray evidence
  • surgery to bone both curative and prophylactic
  • radiation therapy to bone including palliative, therapeutic or prophylactic
  • hypercalcemia of malignancy, defined as a corrected serum calcium > 12 mg/dl (3.00 mmol/l) or a lower level of hypercalcemia which is symptomatic and which requires active treatment other than rehydration.
12 month
Annual Incidence of Any Skeletal Related Events (SREs)
Délai: 12 months

Skeletal Related Events (SREs) are defined as a:

  • pathologic bone fracture such as non-vertebral and vertebral
  • spinal cord compression identified by X-rays evidence
  • surgery to bone both curative and prophylactic
  • radiation therapy to bone including palliative, therapeutic or prophylactic
  • hypercalcemia of malignancy, defined as a corrected serum calcium > 12 mg/dl (3.00 mmol/l) or a lower level of hypercalcemia which is symptomatic and which requires active treatment other than rehydration. Annual incidence for each SRE was computed in the same way as annual overall SMR.
12 months
Median Time to First Skeletal Related Event(s) (SRE)
Délai: 12 month
Median Time to first skeletal related event (SRE) is defined as the time from randomization to the date of first occurrence of any SRE which includes at least one of the following: radiation therapy to bone, pathologic bone fracture, spinal cord compression, surgery to bone, and hypercalcemia of malignancy (HCM). Due to the few numbers of SRE, Kaplan-Meier estimate never reaches a failure probability >=25%; so median time, 25th and 75th percentiles are not determined.For this reason only the estimated percentage of patient SRE free are reported at each time point.
12 month
Percentage of Participants Skeletal Related Event (SRE) Free
Délai: 12 months

Percentage of participants SRE free is defined as the Kaplan-Meier estimate of participants free of any Skeletal Related Events(SRE) at each time point.

Skeletal Related Events (SREs) are:

  • pathologic bone fracture; non-vertebral and vertebral
  • spinal cord compression identified by X-rays
  • surgery to bone both curative and prophylactic
  • radiation therapy to bone (palliative, therapeutic or prophylactic)
  • hypercalcemia of malignancy, defined as a corrected serum calcium > 12 mg/dl (3.00 mmol/l) or a lower level which is symptomatic and requires treatment other than rehydration.
12 months
Composite Bone Pain Score According to the Brief Pain Inventory (BPI) Questionnaire
Délai: At Baseline, Month 3, Month 6, Month 9 and Month 12
Bone pain was assessed by means of a pain score obtained using the Brief Pain Inventory (BPI) questionnaire. The BPI can produce three pain scores: worst pain, a composite pain score, and a pain interference score. The composite pain score, which is the average of questions 3, 4, 5 and 6 of the questionnaire was used in this study. Pain was rated on a scale of 0 (no pain) to 10 (pain as bad as you can imagine). The outcome is given as the median score for participants at baseline, and 3, 6, 9 and 12 months of treatment
At Baseline, Month 3, Month 6, Month 9 and Month 12
Evaluation of Pain According to Verbal Rating Scale (VRS) Based on Median Score Value
Délai: At Baseline, Month 3, Month 6, Month 9 and Month 12
Pain intensity at rest and on movement is rated by the patient by means of a validated 6-point Verbal Rating Scale (VRS) and refers to the pain which occurred during the last week before the assessment. Median score value is the median of all the observed scores (none=0, very mild=1, mild=2, moderate=3, severe=5 and very severe=6) at each time point.
At Baseline, Month 3, Month 6, Month 9 and Month 12
Use Of Analgesic Medications According to the Analgesic Score Scale
Délai: At Baseline, Month 3, Month 6, Month 9 and Month 12

The analgesic score used for this study is modified from the Radiation Therapy Oncology Group (RTOG) analgesic score scale. The scale represents type of medication administered from 0 to 4 where:

0 = None

  1. = Minor analgesics (aspirin, NSAID, acetaminophen, propoxyphene, etc.)
  2. = Tranquilisers, antidepressants, muscle relaxants, and steroids
  3. = Mild narcotics (oxycodone, meperidine, codeine, etc.)
  4. = Strong narcotics (morphine, hydromorphone, etc.) The outcome is given a the median score for the participants at Baseline and 3, 6, 9 and 12 months of treatment
At Baseline, Month 3, Month 6, Month 9 and Month 12
Assessment of the Eastern Cooperative Oncology Group (ECOG) Performance Score
Délai: At Baseline, Month 3, Month 6, Month 9 and Month 12
ECOG Performance Score has 4 grades. 0 = Fully active, able to carry out all pre-disease activities; 1 = Restricted in strenuous activity but ambulatory and able to carry out work of light or sedentary nature; 2 = Ambulatory and capable of all self-care but unable to carry out work activities. Active about 50% of waking hours; 3 = Capable of limited self-care, confined to bed/chair more than 50% of waking hours; 4 = Completely disabled; cannot carry on self-care. Totally confined to bed/chair. Outcome is given as median score for participants at Baseline and 3, 6 , 9 and 12 months of treatment
At Baseline, Month 3, Month 6, Month 9 and Month 12

Collaborateurs et enquêteurs

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

Parrainer

Novartis Pharmaceuticals

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

1 février 2006

Achèvement primaire (Réel)

1 février 2010

Dates d'inscription aux études

Première soumission

12 septembre 2006

Première soumission répondant aux critères de contrôle qualité

12 septembre 2006

Première publication (Estimation)

13 septembre 2006

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

11 avril 2012

Dernière mise à jour soumise répondant aux critères de contrôle qualité

9 avril 2012

Dernière vérification

1 juillet 2011

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • CZOL446EIT14

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 .

S'abonner