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Letrozole as Early Adjuvant Treatment of Postmenopausal Patients With Primary Breast Cancer

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: June 2, 2006
Last Update Posted: February 23, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:

This is a prospective open-label one-arm phase III trial designed to evaluate the safety and efficacy of letrozole 2.5 mg administered orally daily for 24 months as adjuvant therapy in postmenopausal patients with primary breast cancer.

This trial is not recruiting patients in the United States.

Condition Intervention Phase
Breast Cancer Drug: Letrozole Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Phase III Trial With Letrozole as Early Adjuvant Treatment of Postmenopausal Patients With Primary Breast Cancer

Resource links provided by NLM:

Further study details as provided by Novartis:

Primary Outcome Measures:
  • Rate of patients without recurrence after 24 months of Letrozole treatment as assessed by radiological imaging [ Time Frame: after 24 months ]

Secondary Outcome Measures:
  • Disease free survival (DFS) [ Time Frame: every 6 months for 24 months ]
  • Quality of life as assessed by EORTC QLQ-C30 + BR23 every 3 months [ Time Frame: Every 6 months ]
  • Safety and tolerability with assessments incuding biochemistry, hematology, ECG, pyhsical exam and AE documentation [ Time Frame: every 6 months ]

Enrollment: 655
Study Start Date: March 2006
Primary Completion Date: July 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Letrozole Drug: Letrozole
2.5 mg/day - oraly
Other Names:
  • Femara
  • FEM345


Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion criteria:

  • Compliant postmenopausal women with primary operable breast cancer after complete surgery and suitable for endocrine treatment
  • Nodal status negative or positive
  • Good Health status 0-2 (Eastern Cooperative Oncology Group)
  • Estrogen- and/or progesterone-receptor positive
  • Adequate marrow, kidney and liver function

Exclusion criteria:

  • Metastatic or inflammatory breast cancer
  • Patients with previous or concomitant cancers (not breast cancer) within the past 5 years EXCEPT adequately treated basal or squamous cell skin cancer or in situ cancer of the cervix. Patients with other previous cancers must have been disease-free for at least 5 years and Patients with uncontrolled, non-malignant systemic cardiovascular, kidney, and liver diseases.
  • Current/active dental problems including infection of the teeth or jawbone, dental or fixture trauma, or a current or prior diagnosis of osteonecrosis of the jaw, of exposed bone in the mouth, or of slow healing after dental procedures.
  • Recent (within 6 weeks) or planned dental or jaw surgery
  • Patients with primary overactive parathyroid
  • Patients with a known hypersensitivity to zoledronic acid or other bisphosphonates.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00332852

  Show 54 Study Locations
Sponsors and Collaborators
Novartis Pharmaceuticals
Study Director: Novartis Pharmaceuticals Novartis Pharmeceuticals
  More Information

Additional Information:
Responsible Party: External Affairs, Novartis Pharmaceuticals
ClinicalTrials.gov Identifier: NCT00332852     History of Changes
Other Study ID Numbers: CFEM345DDE10
First Submitted: May 31, 2006
First Posted: June 2, 2006
Last Update Posted: February 23, 2017
Last Verified: February 2017

Keywords provided by Novartis:
Postive breast cancer
disease free survival
early adjuvant treatment
primary hormone receptor

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases
Antineoplastic Agents
Aromatase Inhibitors
Steroid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Estrogen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs