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Platinum for Triple-Negative Metastatic Breast Cancer and Evaluation of p63/p73 as a Biomarker of Response

A Phase II Study of Cisplatin or Carboplatin for Triple-Negative Metastatic Breast Cancer and Evaluation of p63/p73 as a Biomarker of Response

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00483223
Enrollment
86
Registered
2007-06-06
Start date
2007-06-30
Completion date
2017-06-30
Last updated
2017-08-25

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

Conditions

Breast Cancer

Keywords

ER negative, PgR negative, HER2 negative, cisplatin, carboplatinum, platinum, p63, p73

Brief summary

The purpose of this research study is to : * Determine how effective cisplatin or carboplatin is in slowing the time it takes for ER negative (estrogen-receptor-negative), PR negative (progesterone receptor-negative), HER2 negative (human epidermal growth factor receptor 2) breast cancer to progress. Cisplatin and carboplatin are anti-cancer chemotherapy drugs that stop cancer cells from growing abnormally and is used to treat other cancers. * Evaluate a new biomarker to help determine which breast cancers are most likely to respond to cisplatin chemotherapy The hypothesis is that Triple Negative metastatic breast cancer may be particularly sensitive to platinum, and that a subgroup of those patients may have a marker in their tumors that predicts response.

Detailed description

This study is a Phase 2 study designed to evaluate cisplatin/carboplatin as first or second line therapy in metastatic triple negative (ER negative, PR negative, Her2 Negative) breast cancer and to evaluate the expression of p63/p73 as a biomarker to predict response. * Participants will be given a cisplatin or carboplatin infusion intravenously on the first day of each treatment cycle. Each treatment cycle will last 3 weeks. Treating physician will select agent up to 41 patients in each cohort. Final primary endpoint analysis will use combined cis/carbo results. * During all treatment cycles participants will have a physical exam (including weight and vital signs) and they will be asked general questions about their health and any medications they may be taking, as well as specific questions about any side effects they may be experiencing while receiving study treatment. * During every treatment cycle participants will have standard blood tests to check blood counts, liver and kidney function, and a blood marker for you particular type of cancer. * CT scans will be taken of the participants tumor every 2 to 3 cycles to assess the response of the tumor to cisplatin. * Participants will be in this study for as long as they tolerate the study treatment and their disease does not get any worse. * Participants will be required to have a sample of their original tumor sent to Massachusetts General Hospital for correlative studies, or a sample from a metastatic diagnostic biopsy. * Patients with accessible tumor will be asked to provide an optional metastatic tumor biopsy for correlative studies.

Interventions

DRUGCisplatin

Given intravenously on the first day of each 3-week treatment cycle at 75mg/m2. Participants may continue to receive study treatment as long as their disease does not worsen and they do not experience serious side effects.

DRUGcarboplatin

Given intravenously on the first day of each 3-week treatment cycle at AUC 6. Participants may continue to receive study treatment as long as their disease does not worsen and they do not experience serious side effects.

Sponsors

Beth Israel Deaconess Medical Center
CollaboratorOTHER
Dana-Farber Cancer Institute
CollaboratorOTHER
North Shore Medical Center
CollaboratorOTHER
Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically confirmed invasive breast cancer with stage IV disease, according to AJCC 6th edition (American Joint Committee on Cancer), either biopsy proven or with unequivocal evidence of metastatic disease by physical examination or radiological study * All tumors must be ER-, PGR- and HER2-negative * 18 years of age or older * Paraffin tissue block is required from the primary tumor tissue or from diagnostic metastatic biopsy at time of relapse * Measurable disease by RECIST * Performance status of 0,1 or 2 by ECOG criteria (Eastern Cooperative Oncology Group) * Life expectancy greater than 12 weeks * Normal organ and bone marrow function documented within 14 days prior to enrollment as defined by the protocol

Exclusion criteria

* More than 1 prior chemotherapy for the treatment of recurrent or metastatic breast cancer * Prior treatment with cisplatin, carboplatin, or other platinum chemotherapy agents * Active brain metastases or unevaluated neurological symptoms suggestive of brain metastases * Intercurrent illness or other major medical condition or comorbid condition that might affect study participation * Significant history of uncontrolled cardiac disease such as uncontrolled hypertension, unstable angina, recent myocardial infarction, uncontrolled congestive heart failure, cardiomyopathy either symptomatic or asymptomatic but with decreased ejection fraction \<45% * Renal dysfunction for which cisplatin dose would either require dose modification or would be considered unsafe * Pregnant or nursing women * History or other malignancy that was not treated with curative intent

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate3 yearsObjective response rate (ORR) (complete response \[CR\]+ partial response \[PR\]) by RECIST (Response Evaluation Criteria In Solid Tumors). Complete Response (CR): Disappearance of all target lesions Partial Response (PR): At least a 30% decrease in the sum of the LD (longest diameter) of target lesions, taking as reference the baseline sum LD Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum LD since the treatment started Progressive Disease (PD): At least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions
Response Rate Categorized by p63/p73 Ratio3 yearsResponse rate categorized by pre-specified ΔNp63/TAp73 expression ratio cutoff in the primary tumors from this patient cohort as a bio-marker to predict response to cisplatin or carboplatin. Response is defined as partial or completed response as determined by RECIST. Expression ratio was measured using quantitative RT-PCR (Reverse transcription polymerase chain reaction).

Secondary

MeasureTime frameDescription
Objective Response Rate Categorized by Subgroup3 yearsThe number of participants achieving an objective response (as determined by RECIST) categorized by treatment cohort and whether the treatment was first or second line treatment. First line treatment means that the drug used was the first drug used for the treatment of the primary cancer. Second line treatment means that a first line treatment failed to produce the desired response, so a new drug was used for treatment.
Progression Free Survival and Overall Survival5 yearsMedian progression free survival and overall survival (progression determined using RECIST) during a median follow-up time of 50 months.

Countries

United States

Participant flow

Participants by arm

ArmCount
Single Arm
Cisplatin or carboplatin (1 arm, 2 cohorts) Cisplatin: Given intravenously on the first day of each 3-week treatment cycle at 75mg/m2. Participants may continue to receive study treatment as long as their disease does not worsen and they do not experience serious side effects. carboplatin: Given intravenously on the first day of each 3-week treatment cycle at AUC 6. Participants may continue to receive study treatment as long as their disease does not worsen and they do not experience serious side effects.
86
Total86

Baseline characteristics

CharacteristicSingle Arm
Age, Continuous52 years
Age, Customized
< 40
13 Participants
Age, Customized
40-65
63 Participants
Age, Customized
> 65
10 Participants
ECOG PS
0
55 Participants
ECOG PS
1
20 Participants
ECOG PS
2
5 Participants
ECOG PS
Not reported
6 Participants
Prior chemotherapy
Adjuvant/neoadjuvant
74 participants
Prior chemotherapy
Anthracycline
65 participants
Prior chemotherapy
Taxane
67 participants
Race/Ethnicity, Customized
African American
7 Participants
Race/Ethnicity, Customized
Asian
4 Participants
Race/Ethnicity, Customized
> one or other
6 Participants
Race/Ethnicity, Customized
White
69 Participants
Region of Enrollment
United States
86 Participants
Sex: Female, Male
Female
86 Participants
Sex: Female, Male
Male
0 Participants
Site of metastases
Bone
25 participants
Site of metastases
Brain
4 participants
Site of metastases
Liver
25 participants
Site of metastases
Lung
44 participants
Site of metastases
Lymph nodes
54 participants
Site of metastases
Skin
16 participants
Stage at initial diagnosis of breast cancer
1
10 Participants
Stage at initial diagnosis of breast cancer
2
32 Participants
Stage at initial diagnosis of breast cancer
3
37 Participants
Stage at initial diagnosis of breast cancer
4
7 Participants
Treatment cohort
Carboplatin (cohort 2)
43 Participants
Treatment cohort
Cisplatin (cohort 1)
43 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
75 / 86
other
Total, other adverse events
85 / 86
serious
Total, serious adverse events
8 / 86

Outcome results

Primary

Objective Response Rate

Objective response rate (ORR) (complete response \[CR\]+ partial response \[PR\]) by RECIST (Response Evaluation Criteria In Solid Tumors). Complete Response (CR): Disappearance of all target lesions Partial Response (PR): At least a 30% decrease in the sum of the LD (longest diameter) of target lesions, taking as reference the baseline sum LD Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum LD since the treatment started Progressive Disease (PD): At least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions

Time frame: 3 years

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cisplatin or CarboplatinObjective Response RateNot Evaluable3 Participants
Cisplatin or CarboplatinObjective Response RateComplete Response3 Participants
Cisplatin or CarboplatinObjective Response RatePartial Response19 Participants
Cisplatin or CarboplatinObjective Response RateStable Disease > 6 Months4 Participants
Cisplatin or CarboplatinObjective Response RateProgressive Disease57 Participants
Primary

Response Rate Categorized by p63/p73 Ratio

Response rate categorized by pre-specified ΔNp63/TAp73 expression ratio cutoff in the primary tumors from this patient cohort as a bio-marker to predict response to cisplatin or carboplatin. Response is defined as partial or completed response as determined by RECIST. Expression ratio was measured using quantitative RT-PCR (Reverse transcription polymerase chain reaction).

Time frame: 3 years

Population: Patients from either cohort with a tumor sample available to evaluate for expression ratio.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Cisplatin or CarboplatinResponse Rate Categorized by p63/p73 Ratiop63/p73 > 2Response9 Participants
Cisplatin or CarboplatinResponse Rate Categorized by p63/p73 Ratiop63/p73 > 2No Response24 Participants
Cisplatin or CarboplatinResponse Rate Categorized by p63/p73 Ratiop63/p73 < 2Response5 Participants
Cisplatin or CarboplatinResponse Rate Categorized by p63/p73 Ratiop63/p73 < 2No Response23 Participants
Comparison: H0: no association between expression ratio and response rate Ha: Participants with expression ratio greater than 2 would have higher response ratep-value: 0.54t-test, 2 sided
Secondary

Objective Response Rate Categorized by Subgroup

The number of participants achieving an objective response (as determined by RECIST) categorized by treatment cohort and whether the treatment was first or second line treatment. First line treatment means that the drug used was the first drug used for the treatment of the primary cancer. Second line treatment means that a first line treatment failed to produce the desired response, so a new drug was used for treatment.

Time frame: 3 years

Population: Response rate is divide by drug cohort and categorized by first or second-line treatment

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCisplatinFirst line: Response12 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCisplatinFirst line: No response22 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCisplatinSecond line: Response2 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCisplatinSecond line: No response7 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCarboplatinFirst line: Response8 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCarboplatinFirst line: No response27 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCarboplatinSecond line: Response0 Participants
Cisplatin or CarboplatinObjective Response Rate Categorized by SubgroupCarboplatinSecond line: No response8 Participants
Secondary

Progression Free Survival and Overall Survival

Median progression free survival and overall survival (progression determined using RECIST) during a median follow-up time of 50 months.

Time frame: 5 years

ArmMeasureGroupValue (MEDIAN)
Cisplatin or CarboplatinProgression Free Survival and Overall SurvivalMedian Progression Free Survival2.9 Months
Cisplatin or CarboplatinProgression Free Survival and Overall SurvivalMedian Overall Survival11 Months

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026