Other Clinical Trial - Study of High-dose Letrozole Therapy in

See also
	Status	Clinical Trial	Phase
	Completed	`NCT00237198` - Study of Safety and Efficacy of Letrozole Monotherapy as Second-line Endocrine Therapy in Postmenopausal Patients With Advanced Breast Cancer Who Received Previous Anti-estrogen Treatment	Phase 2
	Completed	`NCT00247663` - Extension Study of 1.0mg Dose Letrozole Therapy in Postmenopausal Patients With Breast Cancer	Phase 2

See also

Status

Clinical Trial

Phase

Completed

NCT00237198 - Study of Safety and Efficacy of Letrozole Monotherapy as Second-line Endocrine Therapy in Postmenopausal Patients With Advanced Breast Cancer Who Received Previous Anti-estrogen Treatment

Phase 2

Completed

NCT00247663 - Extension Study of 1.0mg Dose Letrozole Therapy in Postmenopausal Patients With Breast Cancer

Phase 2

Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.

Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.

Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

NCT number	NCT00237211
Study type	Interventional
Source	Novartis
Contact
Status	Completed
Phase	Phase 2
Start date	June 2001
Completion date	October 2006

Study of High-dose Letrozole Therapy in Postmenopausal Patients With Breast Cancer

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms