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A Breast Cancer Genome Guided Therapy Study

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StatusRecruiting
Sponsors
Mayo Clinic
Collaborators
National Cancer Institute (NCI)

Keywords

Abstract

The primary purpose of this study is to evaluate abemaciclib, a CDK4/6 inhibitor, in patients with triple negative breast cancer (TNBC) who have residual disease following neoadjuvant chemotherapy, but prior to surgery. The goal is to assess the novel mechanisms by which abemaciclib may activate the immune system and decrease the likelihood of metastases in triple negative breast cancer.

Description

PRIMARY OBJECTIVES:

I. To examine the effects of abemaciclib on the CD8/FOXP3 ratio in chemotherapy resistant triple negative breast cancer (TNBC) patients following neoadjuvant chemotherapy.

SECONDARY OBJECTIVES:

I. Assess abemaciclib toxicities. II. To examine the effects of abemaciclib on the percentage of vimentin expressing invasive cancer cells.

III. Within TNBC molecular subtypes (basal, mesenchymal, and luminal androgen receptor [LAR]), to evaluate the effects of abemaciclib on the individual elements of tumor grade (mitoses, nuclear pleomorphism, and tubule formation).

IV. Within TNBC molecular subtypes (basal, mesenchymal, and LAR), to evaluate the effects of abemaciclib on tumor proliferation (as measured by tumor Ki-67 and serum tyrosine kinase inhibitor [TKI]).

V. Within TNBC molecular subtypes (basal, mesenchymal, and LAR), to evaluate the effects of abemaciclib on pDUB3 as well as tyrosine-protein kinase ITK/TSK (EMT) markers including SNAIL/SLUG, TWIST, and E-Cadherin as measured by immunohistochemistry (IHC).

VI. Within TNBC molecular subtypes (basal, mesenchymal, and LAR), to evaluate the effects of abemaciclib on quantification of tumor-infiltrating lymphocytes (as examined by hematoxylin and eosin staining method [H&E]).

EXPLORATORY OBJECTIVES:

I. To evaluate the effect of abemaciclib on tumor ribonucleic acid (RNA)-seq data using the gene set enrichment analysis (GSEA) and CIBERSORT methods.

II. Using the suspension mass cytometry (HeliosTM system) to evaluate the effects of abemaciclib on the phenotype of peripheral blood mononuclear cells (PBMC) as well as formalin-fixed paraffin-embedded (FFPE) tumor sections (imaging mass cytometry (HyperionTM system) which will include: a) genes directly involved in tumor cell antigen presentation (B2M, HLA-A, HLA-B, HLA-C, TAP1, TAP2, TAPBP); b) interferon-stimulated genes (ISGs) that regulate antigen presentation (e.g. STAT1, NLRC5) and other ISGs (IRFs, OAS2); c) genes involved in double strand (ds)RNA response (DDX58, DHX58); d) genes encoding interferons, including type 3 IFNs (IFNL1, IFNL2, IFNL3); e) genes indicating a cytotoxic T cell response (PRF1, GZMB); f) regulatory T cell (Treg)-specific transcription factor genes (FOXP3, IKZF2).

OUTLINE:

Patients receive abemaciclib orally (PO) twice daily (BID) on days 1-14 or days 1-21 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care surgical resection.

After completion of study treatment, patients are followed up within 30-60 days.

Dates

Last Verified: 12/31/2019
First Submitted: 06/04/2019
Estimated Enrollment Submitted: 06/04/2019
First Posted: 06/06/2019
Last Update Submitted: 07/20/2020
Last Update Posted: 07/21/2020
Actual Study Start Date: 01/09/2020
Estimated Primary Completion Date: 07/30/2022
Estimated Study Completion Date: 07/30/2022

Condition or disease

Anatomic Stage I Breast Cancer AJCC v8
Anatomic Stage IA Breast Cancer AJCC v8
Anatomic Stage IB Breast Cancer AJCC v8
Anatomic Stage II Breast Cancer AJCC v8
Anatomic Stage IIA Breast Cancer AJCC v8
Anatomic Stage IIB Breast Cancer AJCC v8
Anatomic Stage III Breast Cancer AJCC v8
Anatomic Stage IIIA Breast Cancer AJCC v8
Anatomic Stage IIIB Breast Cancer AJCC v8
Anatomic Stage IIIC Breast Cancer AJCC v8
Breast Fibrocystic Change
Ductal Breast Carcinoma In Situ
Estrogen Receptor Negative
HER2/Neu Negative
Invasive Breast Carcinoma
Lobular Breast Carcinoma In Situ
Progesterone Receptor Negative
Prognostic Stage I Breast Cancer AJCC v8
Prognostic Stage IA Breast Cancer AJCC v8
Prognostic Stage IB Breast Cancer AJCC v8
Prognostic Stage II Breast Cancer AJCC v8
Prognostic Stage IIA Breast Cancer AJCC v8
Prognostic Stage IIB Breast Cancer AJCC v8
Prognostic Stage III Breast Cancer AJCC v8
Prognostic Stage IIIA Breast Cancer AJCC v8
Prognostic Stage IIIB Breast Cancer AJCC v8
Prognostic Stage IIIC Breast Cancer AJCC v8
Triple-Negative Breast Carcinoma

Intervention/treatment

Drug: Treatment (abemaciclib)

Procedure: Treatment (abemaciclib)

Phase

Phase 2

Arm Groups

ArmIntervention/treatment
Experimental: Treatment (abemaciclib)
Patients receive abemaciclib PO BID on days 1-14 or days 1-21 in the absence of disease progression or unacceptable toxicity. Patients then undergo standard of care surgical resection.
Drug: Treatment (abemaciclib)
Given PO

Eligibility Criteria

Ages Eligible for Study 18 Years To 18 Years
Sexes Eligible for StudyFemale
Accepts Healthy VolunteersYes
Criteria

Inclusion Criteria:

- PRE-REGISTRATION: Clinical T1-3, N0-3 breast cancer at diagnosis (prior to the start of neoadjuvant chemotherapy) by American Joint Committee on Cancer (AJCC) staging version 8. Note: Benign breast disease, lobular carcinoma in situ (LCIS) or ductal carcinoma in situ (DCIS) in the contralateral breast is allowed. Contralateral invasive breast cancer is allowed if disease is of clinically lower stage and the higher stage lesion will be the study lesion for all biopsies and tissue samples.

- PRE-REGISTRATION: Histological confirmation of triple negative invasive breast cancer (defined as estrogen receptor [ER] =< 10%, progesterone receptor [PR] =< 10% and HER2 not amplified by in situ hybridization [ISH] or immunohistochemistry [IHC] 0/1) at diagnosis.

- PRE-REGISTRATION: Neoadjuvant chemotherapy (NAC) with one of the following regimens that was not discontinued early due to intolerability with less than 50% of planned treatment given due to disease progression or patient request:

- Paclitaxel or docetaxel followed by one of the following: the combination of doxorubicin and cyclophosphamide (AC); the combination of epirubicin and cyclophosphamide (EC) or the combination of 5-fluorouracil, epirubicin and cyclophosphamide (FEC)

- Note: Carboplatin may be added to these regimens

- AC or EC or FEC followed by docetaxel or paclitaxel

- Note: Carboplatin may be added to these regimens

- Docetaxel in combination with doxorubicin and cyclophosphamide (TAC)

- PRE-REGISTRATION: Residual lesion/enhancement seen in the breast on breast imaging performed after completion of NAC.

- PRE-REGISTRATION: Able to swallow oral medication.

- PRE-REGISTRATION: Willing to undergo biopsy for research.

- PRE-REGISTRATION: Willing to provide tissue and blood samples for correlative research purposes.

- PRE-REGISTRATION: Willing to stop use of strong and moderate inducers and/or strong inhibitors of cytochrome P450 3A =< 7 days prior to registration.

- PRE-REGISTRATION: Provide written informed consent.

- REGISTRATION: Registration must occur =< 56 days after last dose of NAC.

- REGISTRATION: Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2.

- REGISTRATION: Absolute neutrophil count (ANC) >= 1500/mm^3 (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Platelets (PLT) >= 100,000/mm^3 (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Hemoglobin (HgB) >= 8.0 g/dL (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Total bilirubin =< 1.5 x upper limit of normal (ULN) (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Aspartate transaminase (AST) serum glutamic oxaloacetic transaminase (SGOT) =< 3 x ULN (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Alanine transaminase (ALT) serum glutamate pyruvate transaminase (SGPT) =< 3 x ULN (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Serum creatinine =< 1.5 x ULN (obtained after completion of NAC but =< 14 days prior to registration).

- REGISTRATION: Negative pregnancy test done =< 7 days prior to registration, for persons of childbearing potential only.

Exclusion Criteria:

- PRE-REGISTRATION: History of deep venous thrombosis (DVT) or pulmonary embolisms (PE) =< 12 months prior to preregistration; OR Active DVT and/or PE requiring anti-coagulant therapy.

- NOTE: Patients who are on anti-coagulant therapy for maintenance are eligible as long as the DVT and/or PE was > 12 months prior to enrollment and there is no evidence for active thrombosis (either DVT or PE).

- NOTE: Patients on anticoagulation are eligible; however peri-biopsy and peri-surgical management of anticoagulation is per the institutional standard of care.

- PRE-REGISTRATION: Prior treatment with CDK 4/6 inhibitors (e.g. palbociclib, ribociclib, abemaciclib, etc.)

- PRE-REGISTRATION: Prior treatment with immunotherapy or radiation for this breast cancer.

- PRE-REGISTRATION: Prior incisional or excisional breast biopsy for this cancer.

- PRE-REGISTRATION: Any contraindications to pre-registration biopsy (such as bleeding diatheses, etc.).

- PRE-REGISTRATION: Receiving any investigational agent which would be considered as a treatment for the primary neoplasm.

- PRE-REGISTRATION: Other active malignancy =< 5 years prior to registration.

- EXCEPTIONS: Non-melanotic skin cancer or carcinoma-in-situ of the cervix.

- NOTE: If there is a history of prior malignancy, they must not be receiving another specific treatment for prior malignancy.

- PRE-REGISTRATION: Biopsy proven stage IV disease.

- PRE-REGISTRATION: Serious pre-existing medical conditions that would preclude participation in this study (for example, interstitial lung disease, severe dyspnea at rest or requiring oxygen therapy, history of major surgical resection involving the stomach or small bowel, or preexisting Crohn?s disease or ulcerative colitis or a preexisting chronic condition resulting in baseline grade 2 or higher diarrhea).

- PRE-REGISTRATION: History of any of the following conditions:

- Syncope of cardiovascular etiology.

- Ventricular arrhythmia of pathological origin (including, but not limited to, ventricular tachycardia and ventricular fibrillation).

- Sudden cardiac arrest.

- NOTE: Patients on anticoagulation are eligible; however peri-biopsy and peri-surgical management of anticoagulation is per the institutional standard of care.

- REGISTRATION: Any of the following because this study involves an investigational agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and newborn are unknown:

- Pregnant persons.

- Nursing persons.

- Persons of childbearing potential who are unwilling to employ adequate contraception.

- REGISTRATION: Failure to recover to grade 1 or lower from effects of chemotherapy

- Exceptions: Residual alopecia and grade 2 peripheral neuropathy are allowed.

- REGISTRATION: Concurrent use of strong and moderate inducers and/or strong inhibitors of cytochrome P450 3A =< 7 days prior to registration.

- REGISTRATION: Known infections as follows (NOTE: Screening is not required for enrollment):

- Active bacterial infection requiring intravenous antibiotics.

- Active fungal infection (requiring intravenous or oral antifungal treatment).

- Detectable viral infections (e.g. known human immunodeficiency virus [HIV], known active hepatitis B or C).

Outcome

Primary Outcome Measures

1. Proportion of patients who have a CD8/FOXP3 ratio < 1.6 in their residual tumors after neoadjuvant chemotherapy (NAC) that convert to CD8/FOXP3 ratio >= 1.6 [Up to 21 days]

A Simon optimum two stage phase II clinical trial design was chosen to test the null hypothesis that the rate of conversion to post-abemaciclib CD8/FOXP3 ratio of 1.6 or more is =< 5% against the alternative that rate of conversion to post-abemaciclib CD8/FOXP3 ratio of 1.6 or more is >= 20% with the target probability of a type I error and probability of a type II error set to 0.10. The probability of terminating after the first stage is 0.736, if the null hypothesis is true. A point estimate for the rate of conversion from a post NAC CD8/FOXP3 ratio < 1.6 to a post-abemaciclib CD8/FOXP3 ratio >=1.6 is calculated as the proportion of eligible patients whose post-abemaciclib CD8/FOXP3 ratio >=1.6 among the eligible patients whose began abemaciclib treatment after a post NAC finding of a residual tumor CD8/FOXP3 ratio >=1.6. A 90% confidence interval for this rate of conversion will be constructed using the Duffy-Santner approach taking into account the sequential nature of the study

Secondary Outcome Measures

1. Incidence of adverse events [Up to 60 days]

Adverse events will be monitored and graded with attribution assigned using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. For each type of adverse event (AE) reported, the proportion of patients experiencing a grade 2 or worse level of that AE will be determined.

2. Changes in vimentin expression [Up to 60 days]

Vimentin expression will be evaluated by immunohistochemistry (IHC) with using 0, 1+, 2+ or 3+ scoring scheme. A point estimate of the proportion of eligible patients whose post-NAC residual tumor Vimentin expression levels were 2+ or 3+ and then fell to 0 or 1+ after abemaciclib among the eligible patients whose began abemaciclib treatment after a post NAC residual tumor Vimentin expression level finding of 2+ or 3+ will be calculated. A 90% confidence interval for this proportion will be constructed using one-sample binomial confidence for proportions.

Other Outcome Measures

1. Changes in mitoses [Up to 60 days]

Examined graphically overall and by triple negative breast cancer (TNBC) subtypes.

2. Changes in nuclear pleomorphism [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

3. Changes in tubule formation [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

4. Changes in tumor Ki-67 [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

5. Changes in serum tyrosine kinase inhibitor (TKI) [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

6. Changes in SNAIL [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

7. Changes in SLUG [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

8. Changes in E-Cadherin [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

9. Changes in tumor-infiltrating lymphocytes [Up to 60 days]

Examined graphically overall and by TNBC subtypes.

10. Effect of abemaciclib on tumor ribonucleic acid (RNA)-sequencing (seq) data [Up to 60 days]

The Gene set enrichment analysis (GSEA) method will be used to determine whether an a priori set of genes are over-represented in the differential expression analysis of the pre- and post- drug response phenotypes. CIBERSORT will be used to estimate the cell composition from RNA transcriptomic data (e.g. immune cell populations).

11. Effect of abemaciclib on the phenotype of peripheral blood mononuclear cells (PBMC) [Up to 60 days]

12. Effect of abemaciclib on formalin-fixed paraffin-embedded (FFPE) tumor sections (imaging mass cytometry (HyperionTM system) [Up to 60 days]

Examination of genes directly involved in tumor cell antigen presentation (B2M, HLA-A, HLA-B, HLA-C, TAP1, TAP2, TAPBP), interferon-stimulated genes (ISGs) that regulate antigen presentation (e.g. STAT1, NLRC5) and other ISGs (IRFs, OAS2), genes involved in double strand (ds)RNA response (DDX58, DHX58), genes encoding interferons, including type 3 IFNs (IFNL1, IFNL2, IFNL3), genes indicating a cytotoxic T cell response (PRF1, GZMB), and regulatory T cell (Treg)-specific transcription factor genes (FOXP3, IKZF2).

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