NCT00062751

Brief Summary

To evaluate the preliminary activity and pharmacokinetics of 2 separate doses and schedules of orally administered Temsirolimus (CCI-779) given in combination with daily letrozole, compared to letrozole alone, in the treatment of locally advanced or metastatic breast cancer in postmenopausal women. All patients must be appropriate to receive endocrine therapy as treatment for advanced disease.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
108

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Dec 2002

Longer than P75 for phase_2

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2002

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

June 12, 2003

Completed
1 day until next milestone

First Posted

Study publicly available on registry

June 13, 2003

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2005

Completed
4.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2009

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

November 25, 2010

Completed
Last Updated

April 15, 2011

Status Verified

April 1, 2011

Enrollment Period

2.3 years

First QC Date

June 12, 2003

Results QC Date

October 27, 2010

Last Update Submit

April 13, 2011

Conditions

Keywords

breastneoplasms

Outcome Measures

Primary Outcomes (1)

  • Percentage of Participants With Objective Response (OR)

    OR measured as Complete response (CR) or Partial response (PR) confirmed by assessments performed no less than 4 weeks after the criteria for the response are first met. CR=disappearance of all target and non-target lesions with normalization of tumor marker level; PR=at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, referencing the screening sum LD. Target lesions=all measurable lesions up to 5 lesions per organ (10 lesions in total), representative of all involved organs, if possible; recorded and measured at screening. Non-target lesions=all other lesions.

    Baseline, every 4 cycles (1 cycle is defined as a 14 day duration) up to Cycle 25, then every 6 cycles until disease progression

Secondary Outcomes (11)

  • Percentage of Participants With Best Overall Response (Clinical Benefit)

    Baseline, every 4 cycles (1 cycle is defined as a 14 day duration) up to Cycle 25, then every 6 cycles until disease progression)

  • Time to Disease Progression

    Baseline, every 4 cycles (1 cycle is defined as a 14 day duration) up to Cycle 25, then every 6 cycles until disease progression)

  • Time to Treatment Failure

    Baseline until Progressive disease, death, or discontinuation of study treatment

  • Percentage of Participants Exhibiting Freedom From Progression

    Baseline, 8 weeks, 6 months, 12 months, and 24 months

  • Duration of Response

    Baseline, every 4 cycles (1 cycle is defined as a 14 day duration) up to Cycle 25, then every 6 cycles until disease progression)

  • +6 more secondary outcomes

Study Arms (3)

A

EXPERIMENTAL
Drug: Letrozole / Temsirolimus (CCI-779)

B

EXPERIMENTAL
Drug: Letrozole / Temsirolimus (CCI-779)

C

ACTIVE COMPARATOR
Drug: Letrozole

Interventions

Letrozole 2.5 mg daily + Temsirolimus (CCI-779) 10 mg daily

A

Letrozole 2.5 mg daily

Also known as: Letrozole alone
C

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Postmenopausal women with histologically confirmed, measurable locally advanced disease or metastatic breast.
  • Must be appropriate to receive endocrine therapy as treatment for advanced disease (chemotherapy; prior adjuvant therapy with antiestrogens other than aromatase inhibitors; prior adjuvant or first-line metastatic therapy with tamoxifen or trastuzumab, are permitted).
  • Women may either present with de novo advanced or metastatic cancer, or have had tumor progression while receiving adjuvant tamoxifen or at any time after completing adjuvant tamoxifen, or have had tumor progression while receiving first-line metastatic therapy with tamoxifen.

You may not qualify if:

  • Patients having known central nervous system (CNS) metastases.
  • Prior therapy with Temsirolimus (CCI-779) or aromatase inhibitors.
  • Tamoxifen, or other hormonal therapy, in the metastatic or adjuvant setting within 1 week prior to day 1 of treatment on study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Links

MeSH Terms

Conditions

Breast NeoplasmsNeoplasms

Interventions

Letrozoletemsirolimus

Condition Hierarchy (Ancestors)

Neoplasms by SiteBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

NitrilesOrganic ChemicalsTriazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Limitations and Caveats

Clinical development of oral temsirolimus for treatment of locally advanced or metastatic breast cancer was terminated by Wyeth based on the results of a phase 3 clinical study with the combination temsirolimus and letrozole.

Results Point of Contact

Title
Pfizer ClinicalTrials.gov Call Center
Organization
Pfizer, Inc.

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

June 12, 2003

First Posted

June 13, 2003

Study Start

December 1, 2002

Primary Completion

April 1, 2005

Study Completion

October 1, 2009

Last Updated

April 15, 2011

Results First Posted

November 25, 2010

Record last verified: 2011-04