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Homologous Recombination Repair Status as a Biomarker of Response in Locally Recurrent/Metastatic Triple Negative Breast Cancer Patients Treated With Concurrent Cisplatin and Radiation Therapy

A Phase II Trial of Homologous Recombination Repair Status as a Biomarker of Response in Locally Recurrent/Metastatic Triple Negative Breast Cancer Patients Treated With Concurrent Cisplatin and Radiation Therapy

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02422498
Enrollment
49
Registered
2015-04-21
Start date
2015-04-14
Completion date
2028-04-14
Last updated
2026-03-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Locally Recurrent/Metastatic Triple Negative Breast Cancer

Keywords

Treated with Concurrent Cisplatin, Treated with Radiation Therapy, Homologous Recombination Repair Status, Biomarker of Response, 15-032, Patients

Brief summary

The study is being done to find out if the results of a pre-treatment biopsy can predict response to cisplatin and radiation treatment for patients with metastatic or recurrent triple negative breast cancer.

Interventions

RADIATIONexternal beam radiation therapy

Radiation therapy to the target tumor will be delivered with external beam radiation therapy. In metastatic cases where the intent is palliative, the dose of radiation will be 3750 cGy delivered in 15 daily fractions, 4-5 days a week. In locoregionally recurrent cases where the intent is to enhance locoregional control, the dose of radiation will be 5000 cGy delivered in 25 fractions, 4-5 days a week plus an optional 10-14 Gy boost to areas of gross tumor.

DRUGcisplatin

Cisplatin treatment should be initiated following study registration. The dose of cisplatin is established as 25 mg/m\^2 ivpb once a week (+ 3 days) for 1-2 weeks prior to radiation. The length of one cycle of Cisplatin is 21 days.

PROCEDUREBiopsy of Target Tumor

Biopsy of the tumor to be irradiated will be performed. Fresh tissue specimens will be sent to the laboratory for performance of the MSK-HRR Assay.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER
Cedars-Sinai Medical Center
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically-confirmed invasive triple negative breast cancer (ER \<1%, PR \<1%, her-2-neu 0-1+ by IHC or FISH-negative) or as determined by MD discretion * Radiation to the recurrent or metastatic site is clinically indicated and would be considered standard care for palliation or for locoregional control * Age ≥18 years * Tumor to be irradiated is measurable by RECIST 1.1 or PRC * Willingness to undergo tumor biopsy prior to initiation of treatment * Life expectancy greater than 6 months * ECOG performance status 0-2 * Any prior chemotherapy is allowed including prior treatment with platinum-containing chemotherapy * Prior treatment with FDA-approved or investigational biologics or novel molecularly target therapies, including oral or IV formulations, are permitted. * Patients must be off prior targeted therapy for at least 14 days prior to study biopsy. * Use of an effective means of contraception in women of child-bearing potential * Ability to comprehend and sign informed consent * Adequate organ and marrow function within 14 days prior to study entry, defined as: * Absolute neutrophil count (ANC)\>1000/mm3 * Hemoglobin \>9 gm/dl * Platelets \>100,000/mm3 * Serum creatinine \<1.5 mg/dl OR creatinine clearance of ≥ 50 cc/min * SGOT/SGPT\<2.5X institutional ULN (\<5X ULN if known liver metastases)

Exclusion criteria

* Unmeasurable target tumor site by RECIST 1.1 or PRC (ex: lesions \<2 cm on CT or MR scan, leptomeningeal disease, ascites, pleural/pericardial effusion, lymphangitis, non-FDG-avid skin lesions) * Brain metastases requiring focal or whole brain radiation will be excluded, as these lesions cannot be biopsied and can have life expectancies \<6 months. * Inability to obtain a biopsy of the tumor as deemed by the study Interventional Radiologist * Prior chemotherapy completed \<7 days prior to planned study entry * Prior RT is allowed and must have been completed more than 7 days before planned study entry. * Note: For re-irradiation cases, standard departmental guidelines should be followed so as to not exceed normal tissue * Life expectancy less than 6 months * Intercurrent illness or other major medical condition or comorbid condition that might affect study participation (uncontrolled renal, pulmonary or hepatic dysfunction or infection) * Renal dysfunction for which cisplatin dose would be considered unsafe. * Women on study must be neither pregnant nor nursing nor expected to become pregnant during therapy. For premenopausal women, negative pregnancy test within 14 days of RT is required. * Concurrent active malignancy other than non-melanomatous skin cancer or carcinoma in-situ of the cervix, unless treatment for the previous cancer was completed \>2 years prior to study entry and patient has remained disease-free.

Design outcomes

Primary

MeasureTime frameDescription
Response (RECIST 1.1 vs. PET Response Criteria (PRC) as Measurement Tools for Treatment Response)2 years from baselineRECIST 1.1 as measurement tools for treatment response.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORSimon Powell, MD,PhD

Memorial Sloan Kettering Cancer Center

Participant flow

Participants by arm

ArmCount
Concurrent Cisplatin & Radiation Therapy
external beam radiation therapy: Radiation therapy to the target tumor will be delivered with external beam radiation therapy. In metastatic cases where the intent is palliative, the dose of radiation will be 3750 cGy delivered in 15 daily fractions, 4-5 days a week. In locoregionally recurrent cases where the intent is to enhance locoregional control, the dose of radiation will be 5000 cGy delivered in 25 fractions, 4-5 days a week plus an optional 10-14 Gy boost to areas of gross tumor. cisplatin: Cisplatin treatment should be initiated following study registration. The dose of cisplatin is established as 25 mg/m\^2 ivpb once a week (+ 3 days) for 1-2 weeks prior to radiation. The length of one cycle of Cisplatin is 21 days. Biopsy of Target Tumor: Biopsy of the tumor to be irradiated will be performed. Fresh tissue specimens will be sent to the laboratory for performance of the MSK-HRR Assay.
49
Total49

Baseline characteristics

CharacteristicConcurrent Cisplatin & Radiation Therapy
Age, Continuous54 years
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
44 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
4 Participants
Race (NIH/OMB)
Black or African American
14 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
Race (NIH/OMB)
White
27 Participants
Region of Enrollment
United States
49 Participants
Sex: Female, Male
Female
48 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
40 / 49
other
Total, other adverse events
45 / 49
serious
Total, serious adverse events
12 / 49

Outcome results

Primary

Response (RECIST 1.1 vs. PET Response Criteria (PRC) as Measurement Tools for Treatment Response)

RECIST 1.1 as measurement tools for treatment response.

Time frame: 2 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Concurrent Cisplatin & Radiation TherapyResponse (RECIST 1.1 vs. PET Response Criteria (PRC) as Measurement Tools for Treatment Response)Partial Response2 Participants
Concurrent Cisplatin & Radiation TherapyResponse (RECIST 1.1 vs. PET Response Criteria (PRC) as Measurement Tools for Treatment Response)Progression of Disease25 Participants
Concurrent Cisplatin & Radiation TherapyResponse (RECIST 1.1 vs. PET Response Criteria (PRC) as Measurement Tools for Treatment Response)Not Entered22 Participants

Source: ClinicalTrials.gov · Data processed: Mar 25, 2026