Study of Fulvestrant +/- Everolimus in Post-Menopausal, Hormone-Receptor + Metastatic Breast Ca Resistant to AI

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Basic Trial Information

PhaseTypeAgeTrial IDs
Phase IITreatment18 and overPrE0102
NCI-2013-01833, NCT01797120

Trial Description

Summary

Post-menopausal women with hormone-receptor positive (HR+) metastatic breast cancer

resistant to aromatase inhibitor (AI) therapy will be randomized to receive Fulvestrant

(Faslodex) with Everolimus or Fulvestrant (Faslodex) with a placebo (no active ingredients).

Fulvestrant has demonstrated activity when used as first, second, or third line endocrine

therapy, making it an attractive therapy for combination with other agents. In addition, it

is commonly reserved for use following disease progression on AI therapy.

Everolimus is an orally administered drug that blocks a signaling pathway called "mTOR".

"mTOR" acts as a regulator for many processes in the body, including cell growth. Blocking

this pathway may have an effect on cell growth.

The combination of a novel class of agents (mTOR inhibitors) and an established standard

treatment for metastatic HR+ breast cancer may potentially increase the clinical benefit by

targeting multiple different biological pathways.

Further Study Information

Breast cancer is the most commonly diagnosed malignancy in women worldwide. In the United

States, an estimated 230,480 new cases of invasive breast cancer were diagnosed in 2011,

with 39,520 breast cancer deaths. In 40-80% of women with node-positive disease at

diagnosis, their breast cancer will recur. When distant metastases occur, median survival is

18 to 36 months from time of recurrence. Among the 60-70% of women with HR+ breast cancer,

40-60% of them will benefit from endocrine therapy. Endocrine therapy has shown to yield

similar survival rates in hormone-sensitive disease as compared to chemotherapy; although

response rates are lower and responses develop more slowly. Endocrine therapy is

considerably less toxic than chemotherapy, and is therefore the preferred treatment option

for patients with HR+ disease.

Endocrine therapy represents the foundation of treatment for HR+ metastatic and locally

advanced breast cancer. Multiple compounds in varying classes exist, and those most widely

used include the selective estrogen receptor modulators (SERMs), aromatase inhibitors (AIs),

and the selective estrogen receptor down-regulators (SERDs). Although the utility of these

drugs is well established, as many as 50% of women with HR+ breast cancer will fail to

respond to endocrine treatment. Moreover, those who do respond will inevitably develop

acquired resistance.

Fulvestrant is the first drug which acts as a pure estrogen receptor (ER) antagonist without

known agonist effects. It competitively binds to the ERs with an approximately 100 times

greater affinity than that of tamoxifen. Fulvestrant promotes the degradation of ERs and

subsequently prevents ER-mediated gene transcription.

Everolimus (RAD001) is an oral derivative of rapamycin that is an m-TOR inhibitor. At

cellular and molecular levels, everolimus acts as a signal transduction inhibitor.

Everolimus selectively inhibits mTOR (mammalian target of rapamycin); a key and highly

conserved serine-threonine kinase which is present in all cells and is a central regulator

of protein synthesis and ultimately cell growth, cell proliferation, angiogenesis and cell

survival. mTOR is the only currently known target of everolimus.

In oncology, everolimus has been in clinical development since 2002 for patients with

various hematologic and non-hematologic malignancies as a single agent or in combination

with antitumor agents, including cytotoxic chemotherapeutic agents, targeted therapies,

antibodies and hormonal agents.

Patients will be randomized (1:1) to receive everolimus or placebo with fulvestrant after

consideration of stratification factors of performance status (0 vs. 1), measurable disease

(with or without non-measurable) vs. non-measurable disease, and prior chemotherapy for

metastatic disease vs. no prior chemotherapy.

Patients will be evaluated for disease response every 12 weeks and treated until disease

progression or unacceptable toxicity for a total of 12 cycles.

Patients with no evidence of progressive disease who remain on study after completing 12

cycles are unblinded and continue to receive fulvestrant alone (if originally randomized to

placebo) or in combination with everolimus (if originally randomized to everolimus) at the

same dose and schedule. Patients will continue to be evaluated for disease response every 12

weeks and continue until disease progression or unacceptable toxicity.

Eligibility Criteria

Inclusion Criteria:

Inclusion Criteria:

1. Signed informed consent.

2. ≥18 years.

3. ECOG Performance Status 0 or 1.

4. Histologically or cytologically confirmed adenocarcinoma of the breast.

5. Stage IV disease or inoperable locally advanced disease.

6. ER and/or PR-positive disease. Tumors must be HER-2/neu negative or equivocal.

7. Aromatase Inhibitor (AI) resistant, defined as:

relapsed while receiving adjuvant therapy with an AI or,

progressive disease while receiving an AI for metastatic disease

8. Received one prior cycle of fulvestrant within 28 days of randomization are eligible.

≥2 prior doses of fulvestrant are not eligible

9. Must be female and postmenopausal.

10. May have received ≤1 prior systemic chemotherapy regimen for metastatic disease.

11. Adequate organ function:

WBC ≥3.0 x 10⁹/L, ANC ≥1.5 x 10⁹/L and platelet count ≥100 x 10⁹/L

hemoglobin ≥9 g/dL

serum bilirubin ≤1.5 X ULN (Upper Limit of Normal)

AST or ALT ≤2.5 X ULN (≤5 x ULN in patients with liver metastases)

serum creatinine ≤1.5 X ULN

serum albumin ≥3 g/dL

fasting serum cholesterol ≤300 mg/dL OR ≤7.75 mmol/L AND fasting triglycerides

≤2.5 x ULN.

PT with INR ≤1.5

12. May have measurable disease, non-measurable disease, or both.

13. Basal cell or squamous cell carcinoma of the skin or carcinoma in situ of the cervix

within the past five years treated with curative intent. History of prior malignancy

are eligible if disease-free for >3 years.

Exclusion Criteria:

1. Major surgery or significant traumatic injury within 4 weeks of randomization or

patients that may require major surgery during the course of the study.

2. Investigational agents within 4 weeks of randomization.

3. Anticancer treatment within 4 weeks of randomization, with the following exceptions:

Bisphosphonates or Zometa for bone metastases

a GnRH analog is permitted if the patient had progressive disease on a GnRH

(Gonadotropin-Releasing Hormone) analog plus a SERM (Selective Estrogen Receptor

Modulators) or an AI; the GnRH analog may continue but the SERM or AI must be

discontinued.

4. Prior treatment with an mTOR inhibitor.

5. Receiving chronic, systemic treatment with corticosteroids or another

immunosuppressive agent ≥ 5 mg prednisone or equivalent daily.

6. Receive immunization with attenuated live vaccines within one week of randomization

or during the study period.

7. Current or a prior history of brain metastases or leptomeningeal disease. Must not

have rapidly progressive, life-threatening metastases.

8. Known hypersensitivity/history of allergic reactions attributed to compounds of

similar chemical or biologic composition to everolimus or fulvestrant.

9. Congenital or acquired immune deficiency at increased risk of infection.

10. Impairment of gastrointestinal function/disease that may significantly alter the

absorption of everolimus.

11. Active, bleeding diathesis.

12. History of any condition or uncontrolled intercurrent illness that in the opinion of

the local investigator might interfere with or limit the patient's ability to comply

with the protocol or pose additional or unacceptable risk to the patient.

13. Severe and/or uncontrolled medical conditions or other conditions that could affect

their participation in the study such as:

Symptomatic congestive heart failure of New York Heart Association Class III or

IV

Unstable angina pectoris, myocardial infarction within 6 months of

randomization, serious uncontrolled cardiac arrhythmia or any other clinically

significant cardiac disease

History of symptomatic pulmonary disease or non-malignant pulmonary disease

requiring treatment.

Uncontrolled diabetes as defined by fasting serum glucose >1.5 x ULN

Active (acute or chronic) or uncontrolled severe infections

Liver disease such as cirrhosis or severe hepatic impairment (Child-Pugh Class

C).

Note: Detailed assessment of Hepatitis B/C medical history and risk factors must be done

at screening.

Exclusion Criteria:

Inclusion Criteria:

1. Signed informed consent.

2. ≥18 years.

3. ECOG Performance Status 0 or 1.

4. Histologically or cytologically confirmed adenocarcinoma of the breast.

5. Stage IV disease or inoperable locally advanced disease.

6. ER and/or PR-positive disease. Tumors must be HER-2/neu negative or equivocal.

7. Aromatase Inhibitor (AI) resistant, defined as:

relapsed while receiving adjuvant therapy with an AI or,

progressive disease while receiving an AI for metastatic disease

8. Received one prior cycle of fulvestrant within 28 days of randomization are eligible.

≥2 prior doses of fulvestrant are not eligible

9. Must be female and postmenopausal.

10. May have received ≤1 prior systemic chemotherapy regimen for metastatic disease.

11. Adequate organ function:

WBC ≥3.0 x 10⁹/L, ANC ≥1.5 x 10⁹/L and platelet count ≥100 x 10⁹/L

hemoglobin ≥9 g/dL

serum bilirubin ≤1.5 X ULN (Upper Limit of Normal)

AST or ALT ≤2.5 X ULN (≤5 x ULN in patients with liver metastases)

serum creatinine ≤1.5 X ULN

serum albumin ≥3 g/dL

fasting serum cholesterol ≤300 mg/dL OR ≤7.75 mmol/L AND fasting triglycerides

≤2.5 x ULN.

PT with INR ≤1.5

12. May have measurable disease, non-measurable disease, or both.

13. Basal cell or squamous cell carcinoma of the skin or carcinoma in situ of the cervix

within the past five years treated with curative intent. History of prior malignancy

are eligible if disease-free for >3 years.

Exclusion Criteria:

1. Major surgery or significant traumatic injury within 4 weeks of randomization or

patients that may require major surgery during the course of the study.

2. Investigational agents within 4 weeks of randomization.

3. Anticancer treatment within 4 weeks of randomization, with the following exceptions:

Bisphosphonates or Zometa for bone metastases

a GnRH analog is permitted if the patient had progressive disease on a GnRH

(Gonadotropin-Releasing Hormone) analog plus a SERM (Selective Estrogen Receptor

Modulators) or an AI; the GnRH analog may continue but the SERM or AI must be

discontinued.

4. Prior treatment with an mTOR inhibitor.

5. Receiving chronic, systemic treatment with corticosteroids or another

immunosuppressive agent ≥ 5 mg prednisone or equivalent daily.

6. Receive immunization with attenuated live vaccines within one week of randomization

or during the study period.

7. Current or a prior history of brain metastases or leptomeningeal disease. Must not

have rapidly progressive, life-threatening metastases.

8. Known hypersensitivity/history of allergic reactions attributed to compounds of

similar chemical or biologic composition to everolimus or fulvestrant.

9. Congenital or acquired immune deficiency at increased risk of infection.

10. Impairment of gastrointestinal function/disease that may significantly alter the

absorption of everolimus.

11. Active, bleeding diathesis.

12. History of any condition or uncontrolled intercurrent illness that in the opinion of

the local investigator might interfere with or limit the patient's ability to comply

with the protocol or pose additional or unacceptable risk to the patient.

13. Severe and/or uncontrolled medical conditions or other conditions that could affect

their participation in the study such as:

Symptomatic congestive heart failure of New York Heart Association Class III or

IV

Unstable angina pectoris, myocardial infarction within 6 months of

randomization, serious uncontrolled cardiac arrhythmia or any other clinically

significant cardiac disease

History of symptomatic pulmonary disease or non-malignant pulmonary disease

requiring treatment.

Uncontrolled diabetes as defined by fasting serum glucose >1.5 x ULN

Active (acute or chronic) or uncontrolled severe infections

Liver disease such as cirrhosis or severe hepatic impairment (Child-Pugh Class

C).

Note: Detailed assessment of Hepatitis B/C medical history and risk factors must be done

at screening.

Trial Contact Information

Trial Lead Organizations / Sponsors / Collaborators

PrECOG, LLC

  • Novartis Pharmaceuticals Corporation

Trial Sites

U.S.A.

Maryland
Baltimore

Johns Hopkins University/Sidney Kimmel Cancer Center

Antonio C. Wolff
Principal Investigator

New York
Bronx

Albert Einstein College of Medicine

Della Felice Makower
Principal Investigator

Ohio
Columbus

Ohio State University Comprehensive Cancer Center

Bhuvaneswari Ramaswamy
Principal Investigator

Pennsylvania
Philadelphia

Fox Chase Cancer Center

Lori J. Goldstein
Principal Investigator

Pittsburgh

University of Pittsburgh Cancer Institute (UPCI)

Adam Matthew Brufsky
Principal Investigator

Texas
Dallas

UT Southwestern/Simmons Cancer Center-Dallas

Barbara Jean B. Haley
Principal Investigator

Link to the current ClinicalTrials.gov record.
NLM Identifer NCT01797120

Note: Information about participating sites on pharmaceutical industry trials may be incomplete. Please visit the ClinicalTrials.gov record via the link above for more information about participating sites.