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Letrozole and Lapatinib Followed by Everolimus in Women With Advanced Breast Cancer

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ClinicalTrials.gov Identifier: NCT01499160
Recruitment Status : Terminated (low accrual)
First Posted : December 26, 2011
Results First Posted : March 6, 2018
Last Update Posted : October 22, 2019
Sponsor:
Collaborators:
Novartis Pharmaceuticals
GlaxoSmithKline
Information provided by (Responsible Party):
Katherine Tkaczuk, University of Maryland, College Park

Tracking Information
First Submitted Date  ICMJE December 14, 2011
First Posted Date  ICMJE December 26, 2011
Results First Submitted Date  ICMJE March 15, 2016
Results First Posted Date  ICMJE March 6, 2018
Last Update Posted Date October 22, 2019
Actual Study Start Date  ICMJE May 2012
Actual Primary Completion Date November 2014   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: February 5, 2018)
Clinical Benefit Rate of Patients Treated With the Combination of Letrozole and Lapatinib and Then After Progression, Treated With Everolimus, Letrozole and Lapatinib. [ Time Frame: From date of study entry until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 24 months ]
Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Progression, as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions; Stable Disease (SD), neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for disease progression. Clinical benefit rate is defined as complete response+partial response+ stable disease. All participants will be treated with the combination of letrozole and lapatinib. Once the participant progresses on this regimen, the participant will be treated with everolimus, letrozole and lapatinib until they progress.
Original Primary Outcome Measures  ICMJE
 (submitted: December 21, 2011)
Clinical Benefit Rate of Patients Treated With the Combination of Letrozole and Lapatinib and Then After Progression, Treated With Everolimus, Letrozole and Lapatinib. [ Time Frame: From date of study entry until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 24 months ]
Clinical benefit rate is defined as complete response, partial response and stable disease. All participants will be treated with the combination of letrozole and lapatinib. Once the participant progresses on this regimen, the participant will be treated with everolimus, letrozole and lapatinib until they progress.
Change History Complete list of historical versions of study NCT01499160 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures  ICMJE
 (submitted: June 11, 2018)
PROGRESSION FREE SURVIVAL TUMOR ASSESSMENT [ Time Frame: From date of study entry until 4 weeks after removal from study or until death (whichever occurs first) up to 24 months. ]
Patients treated with the combination of Letrozole and Lapatinib will provide tumor biopsy sample
Original Secondary Outcome Measures  ICMJE
 (submitted: December 21, 2011)
  • Assess the progression free survival (PFS) of patients treated with the combination of letrozole and lapatinib. [ Time Frame: Radiologic measurements performed every 12 weeks until patient progresses ]
  • Assess the progression free survival (PFS) when adding everolimus to the combination of letrozole and lapatinib upon progression. [ Time Frame: Radiologic measurements performed every 12 weeks until patient progresses ]
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Letrozole and Lapatinib Followed by Everolimus in Women With Advanced Breast Cancer
Official Title  ICMJE GCC 0901- A Phase II Study of Letrozole in Combination With Lapatinib Followed by an Addition of Everolimus in Postmenopausal Women With Advanced Endocrine Resistant Breast Cancer
Brief Summary

About a third of patients with breast cancer are usually treated by hormone pills called tamoxifen and aromatase inhibitors. Aromatase inhibitors are drugs that stop female hormone production. Female hormone or estrogen is an important hormone for the growth of breast cancer cells. Letrozole is one of the aromatase inhibitors that is approved by the FDA and has been used to treat breast cancer since 1997. However, hormone pills usually work for about 6-10 months in most patients. Later on, breast cancer will start to grow again. This condition when hormone pills or endocrine therapy no longer work is called "endocrine resistant" breast cancer. The scientists here at University of Maryland have discovered how these cancer cells can become resistant to hormone pills. In our laboratory tests, the investigators found that lapatinib and everolimus can reverse this resistance and make letrozole work again. However, it is not known if the drugs can reverse the resistance in humans.

The purpose of this study is to find out whether the combination of letrozole, lapatinib, and everolimus is effective in women with breast cancer when hormone pills no longer work.

Lapatinib is an anti-cancer drug that is already approved by the Food and Drug Administration (FDA). It is the standard of care for the treatment of a particular type of breast cancer called human epithelial growth factor receptor 2 (HER2)-positive breast cancer. HER2 is a protein involved in the growth of some cancer cells. This study will also include patients with HER2-negative breast cancer. This means that the cancer cells in these patients do not depend on the HER2 protein. The use of lapatinib in these patients is considered experimental.

Everolimus is also an anti-cancer drug that is approved by the FDA for kidney cancer. Initial studies in mice and later studies in women with breast cancer have shown that everolimus may also slow the growth of breast cancer. The use of everolimus is experimental in this study.

Detailed Description

This is a single-institution clinical trial. Patients will be stratified according to the HER2 status:

Group 1: HER2-positive in the tumor tissue Group 2: HER2 negative in the tumor tissue

In the first part of the study, all of the patients will receive the combination of lapatinib 1,500 mg/day and letrozole 2.5 mg/day. We do not expect any significant toxicity from this combination since the previous study of lapatinib and letrozole showed that this combination is safe with no grade 3-4 toxicities observed. Restaging scans (CT scan, MRI, or bone scan) will be obtained after every 12 weeks of treatment. In those patients who progress from any group, everolimus 5 mg/day will be added to letrozole and lapatinib will be reduced to 1,250 mg/day as per the SWOG phase I study of lapatinib and everolimus. The outcome of each group will continue to be assessed separately. We do not expect to see additional serious toxicity from adding everolimus to the combination of lapatinib and letrozole. All of the treatment will be continued until disease progression.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Study Design  ICMJE Intervention Model: Single Group Assignment
Intervention Model Description:
sequential treatment assignment, no masking is done
Masking: None (Open Label)
Masking Description:
No masking was done
Primary Purpose: Treatment
Condition  ICMJE
  • Breast Neoplasms
  • Endocrine Breast Diseases
  • Neoplasm Metastasis
Intervention  ICMJE
  • Drug: letrozole
    Drug is are to be taken orally. 2.5 mg once daily
    Other Name: Femara
  • Drug: lapatinib
    Drug is to be taken orally. 1,500 mg once daily in the first part of the study and then 1,250 mg once daily in the second part of the study (after initial progression)
    Other Name: Tykerb
  • Drug: everolimus
    Drug is to be taken orally. 5 mg once daily.
    Other Name: Afinitor
Study Arms  ICMJE Experimental: HER2-positive or negative
Lapatinib 1,500 mg/day + letrozole 2.5 mg/day until progression followed by everolimus 5 mg/day + letrozole 2.5 mg/day + lapatinib 1,250 mg/day.
Interventions:
  • Drug: letrozole
  • Drug: lapatinib
  • Drug: everolimus
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Terminated
Actual Enrollment  ICMJE
 (submitted: March 1, 2016)
7
Original Estimated Enrollment  ICMJE
 (submitted: December 21, 2011)
76
Actual Study Completion Date  ICMJE December 2016
Actual Primary Completion Date November 2014   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Female greater than or equal to 18 years.
  • Histologically confirmed breast adenocarcinoma with incurable progressing local-regional or metastatic.
  • ER and/or PR positivity of primary and/or secondary tumor.
  • Patients must have measurable or evaluable disease.
  • Evidence of disease progression or relapse while on or less than 6 months off aromatase inhibitors or tamoxifen either in adjuvant or first line metastatic setting.
  • Postmenopausal
  • Patients may have received up to one prior chemotherapy regimen for stage IV breast cancer. Prior chemotherapy in the adjuvant and/or neoadjuvant setting is permitted. Chemotherapy must be finished at least 2 weeks prior to enrollment.
  • ECOG performance status <2
  • Fasting cholesterol ≤300 mg/dL OR ≤7.75 mmol/LAND fasting triglycerides ≤ 2.5 x ULN despite appropriate treatment.
  • Patients must have adequate organ function as defined by the protocol.
  • Stratification 1:

    • HER2 positive in the primary or secondary tumor tissue
    • Prior trastuzumab therapy is allowed but NOT required. However, trastuzumab should be discontinued at least 3 weeks prior to enrollment.
  • Stratification 2:

    • HER2 negative in the primary or secondary tumor tissue

Exclusion Criteria:

  • Patients receiving any other investigational agents.
  • Prior exposure to lapatinib, everolimus, or other mTOR inhibitors.
  • History of allergic reactions or hypersensitivity to compounds similar to everolimus, lapatinib, or letrozole.
  • Patients who have any severe and/or uncontrolled medical conditions that could affect their participation such as:

    • Left ventricular ejection fraction (LVEF) < 50%
    • Unstable angina, symptomatic congestive heart failure, myocardial infarction within 6 months, serious uncontrolled cardiac arrhythmia or any other clinically significant cardiac disease.
    • Severely impaired lung function as defined as spirometry and DLCO that is 50% of the normal predicted value and/or O2 saturation that is ≤ 88% at rest on room air.
    • Uncontrolled diabetes
    • Active or uncontrolled severe infection
  • Patients with QTc interval > 0.47 seconds.
  • Significant chronic or acute gastrointestinal disorder with diarrhea as a major symptom.
  • Prior exposure to more than 360 mg/m2 doxorubicin, more than 120 mg/m2mitoxantrone, or more than 90 mg/m2idarubicin, or elevated baseline cardiac troponin I.
  • Patients with active CNS metastasis and/or carcinomatous meningtitis. However, patients with CNS metastasis who have completed a therapy and are clinically stable for 3 weeks as defined as: (1) no evidence of new or enlarging CNS metastasis and (2) off steroids and/or anticonvulsants.
  • Patient is known to be HIV, Hepatitis B, or Hepatitis C-positive (these tests are not required).
  • Patients with current active hepatic or biliary disease (with exception of patients with Gilbert's syndrome, asymptomatic gallstones, liver metastases or stable chronic liver disease).
  • Patients with INR ≥ 2 or PTT ≥ 2 x upper normal limit.
  • Previous or current systemic malignancy other than breast cancer within the past 3 years other than carcinoma in situ of the cervix or basal/squamous carcinoma of the skin.
Sex/Gender  ICMJE
Sexes Eligible for Study: Female
Ages  ICMJE 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT01499160
Other Study ID Numbers  ICMJE HP-00040802; GCC 0901
GCC 0901 ( Other Identifier: University of Maryland Greenebaum Cancer Center )
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: No
IPD Sharing Statement  ICMJE
Plan to Share IPD: No
Responsible Party Katherine Tkaczuk, University of Maryland, College Park
Study Sponsor  ICMJE University of Maryland, Baltimore
Collaborators  ICMJE
  • Novartis Pharmaceuticals
  • GlaxoSmithKline
Investigators  ICMJE
Principal Investigator: Katherine Tkaczuk, MD University of Maryland Marlene & Stewart Greenebaum Cancer Center
PRS Account University of Maryland, Baltimore
Verification Date October 2019

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP