Clinical Trial Details
— Status: Active, not recruiting
Administrative data
NCT number |
NCT03281902 |
Other study ID # |
MC1634 |
Secondary ID |
NCI-2017-01479MC |
Status |
Active, not recruiting |
Phase |
|
First received |
|
Last updated |
|
Start date |
November 13, 2017 |
Est. completion date |
December 1, 2024 |
Study information
Verified date |
December 2023 |
Source |
Mayo Clinic |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
This research trial studies genetic profiles in blood and tumor samples from patients with
estrogen receptor positive and HER2 negative breast cancer that has spread to other places in
the body who are receiving palbociclib and endocrine therapy. Examining the genetic changes
associated with the cancer and comparing the genetic material from the cancer tissue with the
genetic material found in the blood may help doctors to develop customized treatment for
breast cancer.
Description:
PRIMARY OBJECTIVES:
I. To identify novel genomic variants and pathways associated with baseline, as well as the
change in serum thymidine kinase (TK1) levels (measured pre-registration, after two cycles,
and at disease progression) among women with advanced hormone receptor (HR) positive breast
cancer treated with palbociclib and endocrine therapy (ET).
SECONDARY OBJECTIVES:
I. To generate patient derived xenograft (PDX)s and organoids from tumor biopsies obtained at
pre-registration, at 2 months, and at disease progression, to test novel endocrine therapy
combinations. (PDX Aim) II. To test whether PDX engraftment is associated with progression
free survival. (PDX Aim) Sequencing Aims III. to describe changes in the genomic landscape of
HR-positive HER2-negative advanced breast cancer by comparing sequencing data
(deoxyribonucleic acid [DNA] and ribonucleic acid [RNA]) from preregistration archival breast
primary tumors (when available), with tumor biopsies obtained preregistration, after two
months on study, and at disease progression on palbociclib and ET.
IV. To evaluate whether genomic variants and pathways (measured using DNA and RNA sequencing
at pre-registration and after two months of treatment) are associated with 1) PFS; 2)
baseline and changes in serum TK1. (Sequencing Aim) V. To tabulate the number of patients who
have targetable mutations found in the preregistration tumor biopsy and to record their
subsequent treatment regimen following progression on palbociclib and ET. (Sequencing Aim)
VI. To compare and contrast the actionable genomic alterations found in cfDNA or CTC derived
DNA that are not found in tumor tissue. (Sequencing Aim) VII. To assess whether genetic
alterations known to be associated with endocrine monotherapy resistance are seen in
circulating tumor- DNA (ctDNA) and circulating tumor cell (CTC) derived DNA. (Sequencing Aim)
VIII.To determine whether use of a 3D micro cancer model, combined with sequencing data from
tumor biopsies, ctDNA and PDXs collected at the time of disease progression, can be used to
personalize future treatment options for PROMISE participants. (Sequencing Aim) IX. To
compare the changes in Ki67 levels (by immunohistochemistry [IHC]) and serum TK1 levels after
2 months of treatment. (Proliferative biomarker aim) X. To assess whether the change in Ki67
and serum TK1 levels after 2 months of treatment with palbociclib and ET is associated with
progression free survival (PFS) outcomes. (Proliferative biomarker aim) XI. To assess whether
high baseline serum TK1 levels (> 200 Du/L) are associated with PFS outcomes. (Proliferative
biomarker aim) XII. To assess whether an increase in TK1 between 2 months and 12 months is
associated with PFS. (Proliferative biomarker aim) XIII. To assess the change in EMT marker
expression (e.g. Vimentin, SLUG and E-cadherin) and serum TK1 after two months of treatment
with palbociclib and ET. (EMT aim) XIV. To determine the association between the expression
of EMT markers and Ki67 levels after two months of treatment with palbociclib and ET. (EMT
aim) XV. To determine the association between the expression of EMT markers after two months
of treatment with palbociclib and ET, and PFS outcomes. (EMT aim) XVI. To assess whether
there is a change in the level of tumor infiltrating lymphocytes (TILs) observed in archival
tumor, at pre-registration, at 2 months, and at disease progression on palbociclib and ET.
(Immune aim) XVII. To assess the change in TILs (including CD8, PD-L1, and FOXP3) after 2
months of treatment with palbociclib and ET. (Immune aim) XVIII. To assess the association
between TILs and serum TK1 levels at preregistration, at 2 months, and at disease progression
on palbociclib and ET. (Immune aim) XIX. To characterize and evaluate changes in the immune
landscape of HR+ HER2 -MBC using serial biopsies obtained pre-registration, at 2 months, and
at disease progression (as well as archived primary tumor when available) using digital
spatial profiling (DSP) (NanoString GeoMx platform) . (Immune aim) XX. To assess, by use of
mass cytometry (CyTOF), whether i) peripheral blood immune markers obtained pretreatment are
associated with either TK1 or PFS and ii) whether the changes in peripheral blood immune
markers after 2 cycles of treatment are associated with changes in serum TK1 levels. (Immune
aim) XXI. To discover putative mechanistic connections underlying bacteria-drug interactions
in all patients. (Microbiome aim) XXII. To identify the biomolecular features within the gut
(stool) microbiome and its association with the pharmacokinetics and pharmacodynamics of
letrozole and palbociclib. (Microbiome aim) XXIII. To discover novel predictive biomarkers of
resistance to CDK4/6i and ET and/or to find biomarkers that add additional predictive power
to other promising biomarkers such as TK1 by performing the following: (Metabolic, proteomic
and lipidomic aim) XXIV. A metabolomics analysis (>5,000 metabolites sampled through
untargeted mass spectrometry at Metabolon) of paired serum samples obtained pre-registration
and after 2 months on palbociclib and ET.
XXIVa. An Olink-based cytokines panel (Explore panel of 1,536 proteins) of paired serum
samples obtained pre-registration and after 2 months on palbociclib and ET.
XXIVb. A lipidomics analysis (platform TBC) of paired serum samples obtained pre-registration
and after 2 months on palbociclib and ET.
XXV. To correlate the changes in the metabolites, cytokines and lipids to the preregistration
genomic tumor characteristics, serial Ki67 levels and PFS outcomes. (Metabolic, proteomic and
lipidomic aim) XXVI. To assess the change in serum TK1 levels after 2 months, and at disease
progression, on palbociclib and ET, and its association with the preregistration
CD44high/CD24/low/ERlow cancer stem cell-like phenotype, including the following: total and
phosphorylated AURKA, breast cancer stemness biomarkers (CD44, CD24, ALDH1) EMT transcription
factors (SMAD5, SOX2), cyclin E, cyclin A and phosphorylated Retinoblastoma (Rb). (Other aim)
XXVII. To examine shifts in the populations of epithelial like CTCs and stem cell like CTCs
during the course of endocrine therapy with palbociclib. (Other aim) XXVIII. To assess CTC
expression of ER, HER2, and other markers of endocrine resistance. (Other aim)
OUTLINE:
Patents undergo collection of blood and stool samples at baseline, 7 days after letrozole
monotherapy treatment, and at completion of each cycle, urine samples at baseline and
completion of each cycle, and saliva samples at baseline. Patients also undergo collection of
blood and urine samples at disease progression. Biopsy samples are analyzed for genetic
profile via genome sequencing and ribonucleic acid (RNA) sequencing. Biopsy samples are also
used for the generation of xenograft mice model.
After completion of study, patients are followed up every 6 months for 7 years.