search
Back to results

GDC-0084 in Combination With Trastuzumab for Patients With HER2-Positive Breast Cancer Brain Metastases

Primary Purpose

Breast Cancer

Status
Recruiting
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Trastuzumab
GDC-0084
Sponsored by
Dana-Farber Cancer Institute
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Breast Cancer focused on measuring Breast Cancer

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

Cohort A:

  • At least one measurable CNS metastasis, defined as ≥ 10 mm in at least one dimension.
  • Unequivocal evidence of new and/or progressive brain metastases, and at least one of the following scenarios:

    • Treated with SRS or surgery with residual un-treated lesions remaining. Such participants are eligible for immediate enrollment on this study providing that at least one untreated lesion is measurable
    • Participants who have had prior WBRT and/or SRS and then whose lesions have subsequently progressed or who have new lesions are also eligible. In this case, lesions which have been treated with SRS may be considered as target lesions if there is unequivocal evidence, in the opinion of the treating physician, of progression following SRS.
    • Participants who have not previously been treated with cranial radiation (e.g., WBRT or SRS) are eligible to enter the study, but such participants must be asymptomatic from their CNS metastases and not requiring corticosteroids for symptom control.
    • Participants who present with systemic stable/absent or progressive disease are eligible to this trial, as long as they fulfill one of the above criteria.

Cohort B:

  • New and/or progressive brain metastasis(es) with clinical indication for resection.
  • All Cohorts:
  • Pathologically confirmed HER2-positive MBC by local laboratory with the following requirements: HER2 overexpressed or amplified (immunohistochemistry of 3+ or HER2 gene amplification by in situ hybridization with a ratio of HER2-gene signals to centromere 17 signals ≥ 2.0 or average HER2 copy number ≥ 6.0 signals/cells).
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of ≤ 2.
  • Left ventricular ejection fraction (LVEF) ≥ 50% by echocardiogram (ECHO) or multigated acquisition (MUGA) scan.
  • Stable or decreasing corticosteroid dose for at least 7 days prior to initiation of treatment.
  • Concurrent administration of other anti-cancer therapy during the course of this study is not allowed. Note that concurrent use of supportive care medications (e.g. anti-resorptive agents, pain medications) is allowed.
  • The participant is ≥18 years old.
  • Participants must have normal organ and marrow function as defined below:

    • Absolute neutrophil count ≥1,000/μl
    • Platelets ≥75,000/μl
    • Hemoglobin ≥9 g/dL
    • Total bilirubin ≤1.5mg/dL (upper limit of normal) except subject with documented Gilbert's syndrome (≤5 x ULN) or liver metastasis, who must have a baseline total bilirubin ≤3.0 mg/dL;
    • AST(SGOT)/ALT(SGPT) ≤ 2.5 × institutional ULN OR ≤ 5.0 × institutional ULN for patients with documented liver metastases.
    • Serum creatinine ≤ 1.5 mg/dL (or glomerular filtration rate ≥ 30 ml/min as determined by the Cockcroft-Gault equation)
  • Female subjects of childbearing potential must have a negative serum or urine pregnancy test within 8 days of initiating protocol therapy.
  • The effects of GDC-0084 on the developing human fetus are unknown and radiotherapy has known teratogenic effects so women of child-bearing potential and men must agree to use adequate contraception (barrier method of birth control; abstinence) prior to study entry and for the duration of study participation and 7 months after completion of Trastuzumab administration per recommendations from the Trastuzumab package insert.
  • The subject is capable of understanding and complying with the protocol and has signed the informed consent document.
  • Participant must be able to swallow and retain oral medication.

Exclusion Criteria:

  • Visceral crisis or impending visceral crisis at time of screening.
  • CNS complications for whom urgent neurosurgical intervention is indicated (e.g., resection, shunt placement).
  • Known leptomeningeal metastases [Defined as positive CSF cytology and/or unequivocal radiological evidence of clinically significant leptomeningeal involvement. CSF sampling is not required in the absence of suggestive symptoms to exclude leptomeningeal involvement].
  • Patients with known contraindication to MRI (e.g., due to pacemaker, ferromagnetic implants, claustrophobia, extreme obesity, hypersensitivity, etc.). However, head CT with contrast may be used in place of MRI at baseline and throughout the trial if MRI is contraindicated and a participant's brain metastases are clearly measurable by head CT.
  • Chemotherapy or targeted therapy within 14 days prior to initiation of protocol therapy. No washout is required for trastuzumab.
  • Has received prior therapy with a PI3K or mTOR inhibitor.
  • No washout is required for endocrine therapy. If a patient has been on ovarian suppression for at least 28 days prior to initiation of study treatment, continuation of ovarian suppression is permitted on protocol. Starting a new endocrine therapy during protocol therapy is not permitted.
  • Current use or history of receiving a non-approved, investigational treatment within 14 days prior to initiation of protocol therapy.
  • Subjects with a history of hypersensitivity to compounds of similar biologic composition to GDC-0084 or any constituent of the product.
  • The subject has an uncontrolled intercurrent illness, including, but not limited to, ongoing or active infection, uncontrolled hypertension, unstable angina pectoris, uncontrolled cardiac arrhythmia, congestive heart failure-New York Heart Association Class III or IV, active ischemic heart disease, myocardial infarction within the previous six months, uncontrolled diabetes mellitus (DM), gastric or duodenal ulceration diagnosed within the previous 6 months, chronic liver or renal disease, or severe malnutrition. If a participant has controlled DM but is unable to monitor blood sugars at home, they will be excluded from the trial.
  • The subject is pregnant or breast-feeding.
  • No active, second potentially life-threatening cancer.
  • Has had major surgery within 21 days before initiation of protocol therapy.
  • Active infection requiring IV antibiotics at the time of protocol therapy initiation.
  • Symptomatic intrinsic lung disease or extensive tumor involvement of the lungs, resulting in dyspnea at rest.
  • Known intolerance to trastuzumab.
  • QT interval time of ≥ 470 msec.
  • Participants receiving any medications or substances that are strong inhibitors or strong inducers of CYP3A4 are ineligible. Should a participant be taking one of these agents and is able to discontinue the therapy or switch to a different agent, no washout will be required prior to starting study medication. Please see Appendix M for the list of medications. Corticosteroids, which are weak CYP3A4 inducers are allowed. Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated list such as http://medicine.iupui.edu/clinpharm/ddis/table.aspx; medical reference texts such as the Physicians' Desk Reference may also provide this information. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product

Sites / Locations

  • Dana-Farber Cancer InstituteRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Experimental

Arm Label

Cohort A: single-arm, two stage, phase II cohort

Cohort B: a pre-surgical window cohort

Arm Description

GDC-0084 45 mg administered orally once daily Trastuzumab administered at a dose of 8 mg/kg intravenously (IV) loading dose; followed by 6 mg/kg IV every 3 weeks thereafter

GDC-0084 45 mg administered orally once daily Trastuzumab administered at a dose of 8 mg/kg intravenously (IV) loading dose; followed by 6 mg/kg IV every 3 weeks thereafter Surgical brain metastasis resection

Outcomes

Primary Outcome Measures

Overall Response Rate in the CNS
ORR in the CNS according to response assessment in neuro-oncology-brain metastases (RANO-BM) criteria
To evaluate the correlation between inhibition of p-4EBP1 in resected brain tumor tissue and intracranial response in the corresponding patient-derived xenograft (PDX) models of BCBM
to correlate on-treatment p4EBP1 levels in the resected brain tumor tissue collected from patients to intracranial response to GDC-0084/trastuzumab and survival in the PDX model generated from the same patient

Secondary Outcome Measures

CBR
rate of patients with clinical benefit at 18 and 24 weeks
DOR
to measure the duration of response in the CNS
Objective extra-CNS response rates
the rate of patients who have an objective response outside of the CNS
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
to evaluate the number of participants with treatment-related adverse events as assessed by CTCAE v4.0
Progression Free Survival
measured by RANO-BM and RECIST 1.1
Overall Survival
to evaluate overall survival

Full Information

First Posted
December 3, 2018
Last Updated
September 25, 2023
Sponsor
Dana-Farber Cancer Institute
Collaborators
Kazia Therapeutics Limited
search

1. Study Identification

Unique Protocol Identification Number
NCT03765983
Brief Title
GDC-0084 in Combination With Trastuzumab for Patients With HER2-Positive Breast Cancer Brain Metastases
Official Title
Phase II Trial of GDC-0084 in Combination With Trastuzumab for Patients With HER2-Positive Breast Cancer Brain Metastases
Study Type
Interventional

2. Study Status

Record Verification Date
September 2023
Overall Recruitment Status
Recruiting
Study Start Date
February 11, 2019 (Actual)
Primary Completion Date
November 30, 2024 (Anticipated)
Study Completion Date
November 30, 2025 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Dana-Farber Cancer Institute
Collaborators
Kazia Therapeutics Limited

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This research study is studying a drug called GDC-0084 as a possible treatment for HER2-Positive Breast Cancer. The drugs involved in this study are: GDC-0084 Trastuzumab (Herceptin®)
Detailed Description
This research study is a Phase II clinical trial. Phase II clinical trials test the safety and effectiveness of an investigational intervention to learn whether the intervention works in treating a specific disease. "Investigational" means that the intervention is being studied. The FDA (the U.S. Food and Drug Administration) has not approved GDC-0084 as a treatment for any disease. Trastuzumab is a targeted therapy approved by the FDA to be used alone or in combination with a chemotherapy drug to treat HER2-positive metastatic breast cancer. GDC-0084 has been shown to stop the activity of a protein called PI3-kinase. This action blocks a pathway in the body that cancer cells commonly use to grow and divide. Trastuzumab is called a "targeted therapy" because it works by attaching itself to specific receptors on the surface of breast cancer cells, known as HER2 receptors. When targeted therapies attach to HER2 receptors, the signals that tell the cells to grow are blocked and the cancer cell may be marked for destruction by the immune system. This process allows trastuzumab to help slow or stop the growth of the breast cancer. In this research study, the investigators are looking to see how your cancer responds to the combination of GDC-0084 and Trastuzumab.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Breast Cancer
Keywords
Breast Cancer

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
47 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Cohort A: single-arm, two stage, phase II cohort
Arm Type
Experimental
Arm Description
GDC-0084 45 mg administered orally once daily Trastuzumab administered at a dose of 8 mg/kg intravenously (IV) loading dose; followed by 6 mg/kg IV every 3 weeks thereafter
Arm Title
Cohort B: a pre-surgical window cohort
Arm Type
Experimental
Arm Description
GDC-0084 45 mg administered orally once daily Trastuzumab administered at a dose of 8 mg/kg intravenously (IV) loading dose; followed by 6 mg/kg IV every 3 weeks thereafter Surgical brain metastasis resection
Intervention Type
Drug
Intervention Name(s)
Trastuzumab
Intervention Description
Trastuzumab is called a "targeted therapy" because it works by attaching itself to specific receptors on the surface of breast cancer cells, known as HER2 receptors. When targeted therapies attach to HER2 receptors, the signals that tell the cells to grow are blocked and the cancer cell may be marked for destruction by the immune system
Intervention Type
Drug
Intervention Name(s)
GDC-0084
Intervention Description
GDC-0084 has been shown to stop the activity of a protein called PI3-kinase. This action blocks a pathway in the body that cancer cells commonly use to grow and divide
Primary Outcome Measure Information:
Title
Overall Response Rate in the CNS
Description
ORR in the CNS according to response assessment in neuro-oncology-brain metastases (RANO-BM) criteria
Time Frame
2 years
Title
To evaluate the correlation between inhibition of p-4EBP1 in resected brain tumor tissue and intracranial response in the corresponding patient-derived xenograft (PDX) models of BCBM
Description
to correlate on-treatment p4EBP1 levels in the resected brain tumor tissue collected from patients to intracranial response to GDC-0084/trastuzumab and survival in the PDX model generated from the same patient
Time Frame
2 Years
Secondary Outcome Measure Information:
Title
CBR
Description
rate of patients with clinical benefit at 18 and 24 weeks
Time Frame
18 and 24 weeks
Title
DOR
Description
to measure the duration of response in the CNS
Time Frame
2 years
Title
Objective extra-CNS response rates
Description
the rate of patients who have an objective response outside of the CNS
Time Frame
2 years
Title
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
Description
to evaluate the number of participants with treatment-related adverse events as assessed by CTCAE v4.0
Time Frame
2 years
Title
Progression Free Survival
Description
measured by RANO-BM and RECIST 1.1
Time Frame
2 years
Title
Overall Survival
Description
to evaluate overall survival
Time Frame
2 years

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Cohort A: At least one measurable CNS metastasis, defined as ≥ 10 mm in at least one dimension. Unequivocal evidence of new and/or progressive brain metastases, and at least one of the following scenarios: Treated with SRS or surgery with residual un-treated lesions remaining. Such participants are eligible for immediate enrollment on this study providing that at least one untreated lesion is measurable Participants who have had prior WBRT and/or SRS and then whose lesions have subsequently progressed or who have new lesions are also eligible. In this case, lesions which have been treated with SRS may be considered as target lesions if there is unequivocal evidence, in the opinion of the treating physician, of progression following SRS. Participants who have not previously been treated with cranial radiation (e.g., WBRT or SRS) are eligible to enter the study, but such participants must be asymptomatic from their CNS metastases and not requiring corticosteroids for symptom control. Participants who present with systemic stable/absent or progressive disease are eligible to this trial, as long as they fulfill one of the above criteria. Cohort B: New and/or progressive brain metastasis(es) with clinical indication for resection. All Cohorts: Pathologically confirmed HER2-positive MBC by local laboratory with the following requirements: HER2 overexpressed or amplified (immunohistochemistry of 3+ or HER2 gene amplification by in situ hybridization with a ratio of HER2-gene signals to centromere 17 signals ≥ 2.0 or average HER2 copy number ≥ 6.0 signals/cells). Eastern Cooperative Oncology Group (ECOG) Performance Status of ≤ 2. Left ventricular ejection fraction (LVEF) ≥ 50% by echocardiogram (ECHO) or multigated acquisition (MUGA) scan. Stable or decreasing corticosteroid dose for at least 7 days prior to initiation of treatment. Concurrent administration of other anti-cancer therapy during the course of this study is not allowed. Note that concurrent use of supportive care medications (e.g. anti-resorptive agents, pain medications) is allowed. The participant is ≥18 years old. Participants must have normal organ and marrow function as defined below: Absolute neutrophil count ≥1,000/μl Platelets ≥75,000/μl Hemoglobin ≥9 g/dL Total bilirubin ≤1.5mg/dL (upper limit of normal) except subject with documented Gilbert's syndrome (≤5 x ULN) or liver metastasis, who must have a baseline total bilirubin ≤3.0 mg/dL; AST(SGOT)/ALT(SGPT) ≤ 2.5 × institutional ULN OR ≤ 5.0 × institutional ULN for patients with documented liver metastases. Serum creatinine ≤ 1.5 mg/dL (or glomerular filtration rate ≥ 30 ml/min as determined by the Cockcroft-Gault equation) Female subjects of childbearing potential must have a negative serum or urine pregnancy test within 8 days of initiating protocol therapy. The effects of GDC-0084 on the developing human fetus are unknown and radiotherapy has known teratogenic effects so women of child-bearing potential and men must agree to use adequate contraception (barrier method of birth control; abstinence) prior to study entry and for the duration of study participation and 7 months after completion of Trastuzumab administration per recommendations from the Trastuzumab package insert. The subject is capable of understanding and complying with the protocol and has signed the informed consent document. Participant must be able to swallow and retain oral medication. Exclusion Criteria: Visceral crisis or impending visceral crisis at time of screening. CNS complications for whom urgent neurosurgical intervention is indicated (e.g., resection, shunt placement). Known leptomeningeal metastases [Defined as positive CSF cytology and/or unequivocal radiological evidence of clinically significant leptomeningeal involvement. CSF sampling is not required in the absence of suggestive symptoms to exclude leptomeningeal involvement]. Patients with known contraindication to MRI (e.g., due to pacemaker, ferromagnetic implants, claustrophobia, extreme obesity, hypersensitivity, etc.). However, head CT with contrast may be used in place of MRI at baseline and throughout the trial if MRI is contraindicated and a participant's brain metastases are clearly measurable by head CT. Chemotherapy or targeted therapy within 14 days prior to initiation of protocol therapy. No washout is required for trastuzumab. Has received prior therapy with a PI3K or mTOR inhibitor. No washout is required for endocrine therapy. If a patient has been on ovarian suppression for at least 28 days prior to initiation of study treatment, continuation of ovarian suppression is permitted on protocol. Starting a new endocrine therapy during protocol therapy is not permitted. Current use or history of receiving a non-approved, investigational treatment within 14 days prior to initiation of protocol therapy. Subjects with a history of hypersensitivity to compounds of similar biologic composition to GDC-0084 or any constituent of the product. The subject has an uncontrolled intercurrent illness, including, but not limited to, ongoing or active infection, uncontrolled hypertension, unstable angina pectoris, uncontrolled cardiac arrhythmia, congestive heart failure-New York Heart Association Class III or IV, active ischemic heart disease, myocardial infarction within the previous six months, uncontrolled diabetes mellitus (DM), gastric or duodenal ulceration diagnosed within the previous 6 months, chronic liver or renal disease, or severe malnutrition. If a participant has controlled DM but is unable to monitor blood sugars at home, they will be excluded from the trial. The subject is pregnant or breast-feeding. No active, second potentially life-threatening cancer. Has had major surgery within 21 days before initiation of protocol therapy. Active infection requiring IV antibiotics at the time of protocol therapy initiation. Symptomatic intrinsic lung disease or extensive tumor involvement of the lungs, resulting in dyspnea at rest. Known intolerance to trastuzumab. QT interval time of ≥ 470 msec. Participants receiving any medications or substances that are strong inhibitors or strong inducers of CYP3A4 are ineligible. Should a participant be taking one of these agents and is able to discontinue the therapy or switch to a different agent, no washout will be required prior to starting study medication. Please see Appendix M for the list of medications. Corticosteroids, which are weak CYP3A4 inducers are allowed. Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated list such as http://medicine.iupui.edu/clinpharm/ddis/table.aspx; medical reference texts such as the Physicians' Desk Reference may also provide this information. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Jose P Leone, MD
Phone
617-632-3800
Email
JoseP_Leone@dfci.harvard.edu
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Jose P Leone, MD
Organizational Affiliation
Dana-Farber Cancer Institute
Official's Role
Principal Investigator
Facility Information:
Facility Name
Dana-Farber Cancer Institute
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02215
Country
United States
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Jose P Leone, MD
Phone
617-632-3800
Email
JoseP_Leone@dfci.harvard.edu
First Name & Middle Initial & Last Name & Degree
Jose P Leone, MD

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
The Dana-Farber / Harvard Cancer Center encourages and supports the responsible and ethical sharing of data from clinical trials. De-identified participant data from the final research dataset used in the published manuscript may only be shared under the terms of a Data Use Agreement. Requests may be directed to: [contact information for Sponsor-Investigator or designee]. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research
IPD Sharing Time Frame
Data can be shared no earlier than one year following the date of publication.
IPD Sharing Access Criteria
Requests may be directed to: [contact information for Sponsor-Investigator or designee].

Learn more about this trial

GDC-0084 in Combination With Trastuzumab for Patients With HER2-Positive Breast Cancer Brain Metastases

We'll reach out to this number within 24 hrs