A Study of Etirinotecan Pegol (NKTR-102) Versus Treatment of Physician's Choice (TPC) in Patients With Metastatic Breast Cancer Who Have Stable Brain Metastases and Have Been Previously Treated With an Anthracycline, a Taxane, and Capecitabine



Status:Recruiting
Conditions:Breast Cancer, Cancer, Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/8/2019
Start Date:November 2016
End Date:March 2021
Contact:Nektar Recruitment
Email:StudyInquiry@nektar.com
Phone:855-482-8676

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A Phase 3 Open-Label, Randomized, Multicenter Study of NKTR-102 Versus Treatment of Physician's Choice (TPC) in Patients With Metastatic Breast Cancer Who Have Stable Brain Metastases and Have Been Previously Treated With an Anthracycline, a Taxane, and Capecitabine

This is an open-label, randomized, active comparator, multicenter, international Phase 3
study of NKTR-102 versus TPC in patients with metastatic breast cancer who have stable brain
metastases and have been previously treated with an anthracycline, a taxane, and capecitabine
in either the adjuvant or metastatic setting (prior anthracycline may be omitted if medically
appropriate or contraindicated for the patient).

This is an open-label, randomized, active comparator, multicenter, international Phase 3
study of NKTR-102 versus TPC in patients with metastatic breast cancer who have stable brain
metastases and have been previously treated with an anthracycline, a taxane, and capecitabine
in either the adjuvant or metastatic setting (prior anthracycline may be omitted if medically
appropriate or contraindicated for the patient).

In Group A, NKTR-102 will be administered at a dose level of 145 mg/m2 on a q21d schedule as
a 90-minute intravenous (IV) infusion on Day 1 of each treatment cycle. In Group B, TPC will
be administered per standard of care. Patients randomized to TPC will receive single-agent IV
chemotherapy, limited to choice of one of the following 7 agents: eribulin, ixabepilone,
vinorelbine, gemcitabine, paclitaxel, docetaxel, or nab-paclitaxel.

This study will randomize approximately 220 patients using a 1:1 randomization ratio and
stratification based on geographic region, tumor receptor status, and Eastern Cooperative
Oncology Group (ECOG) status. At Screening, the Investigator must determine which TPC will be
offered to the patient.

Data will be collected on subsequent anticancer therapies in both treatment groups from the
time patients come off the study treatment until the time of primary data analysis for OS.

An independent data monitoring committee (DMC) will assess interim safety and efficacy data
and determine final number of death events needed to provide 80% conditional power based on
the zone adaptive design.

Inclusion Criteria:

- Female or male, age ≥ 18 years.

- Histologically-confirmed carcinoma of the breast (either the primary or metastatic
lesions) for whom single-agent cytotoxic chemotherapy is indicated. Patients may have
either measurable or non-measurable disease according to RECIST version 1.1.

- Patients must have a history of brain metastases that are non-progressing.

- For triple-negative breast cancer, a minimum of 1 prior cytotoxic chemotherapy regimen
must have been administered for the indication of metastatic disease.Depending on
receptor status, 1 or 2 prior cytotoxic regimens are required prior to enrollment in
this trial; hormonal and/or human epidermal growth factor receptor 2 (HER2) -targeted
agents may be required.

- Have had prior therapy (administered in the neoadjuvant, adjuvant, and/or metastatic
setting) with an anthracycline, a taxane, and capecitabine (prior anthracycline can be
omitted if not medically appropriate or contraindicated for the patient).

- Last dose of anticancer therapy must have been administered within 6 months of the
date of randomization into this study.

- All anticancer- and radiation therapy-related toxicities must be completely resolved
or downgraded to Grade 1 or less (neuropathy may be Grade 2 or less).

- Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

- Demonstrate adequate organ function obtained within 14 days prior to randomization and
analyzed by the central laboratory.

- Women of childbearing potential (WCBP) must agree to use highly effective methods of
birth control throughout the duration of the study until 6 months following the last
dose of study drug.

- Males with female partners of child-bearing potential must agree to use a barrier
contraception (e.g., condom with spermicidal foam/gel/film/cream/suppository)
throughout the duration of the study until 6 months following the last dose of study
drug; in addition to their female partner using either an intrauterine device or
hormonal contraception and continuing until 6 months following the last dose of study
drug. Male patients should not donate sperm until 6 months following the last dose of
study drug.

Exclusion Criteria:

- Last dose of anticancer therapy (including HER2-targeted therapy) within 14 days prior
to randomization.

- High-dose chemotherapy followed by stem cell transplantation (autologous or
allogeneic).

- Major surgery within 28 days prior to randomization.

- Concomitant use of any anticancer therapy or use of any investigational agent(s).

- Received prior treatment for cancer with a camptothecin-derived agent.

- Lesions on imaging, by cerebrospinal fluid or with neurological findings that are
consistent with leptomeningeal disease or meningeal carcinomatosis.

- Chronic or acute GI disorders resulting in diarrhea of any severity grade.

- Patients who are pregnant or lactating, plan to get pregnant, or have a positive serum
pregnancy test prior to randomization.

- Enzyme-inducing anti-epileptic drugs (EIAEDs) within 14 days of randomization.

- Hepatitis B or C, tuberculosis, or HIV.

- Cirrhosis.

- Prior malignancy (other than breast cancer) unless diagnosed and definitively treated
more than 5 years prior to randomization.

- Daily use of oxygen supplementation.

- Significant known cardiovascular impairment.

- Prior treatment with NKTR-102.

- Psychiatric illness, social situation, or geographical situation that preclude
informed consent or limit compliance.

- Known intolerance or hypersensitivity to any of the products used in this study or
their excipients.

- For patients selecting vinorelbine or gemcitabine as the TPC agent, patients may not
receive yellow fever vaccine in the 28 days prior to randomization.
We found this trial at
21
sites
Plantation, Florida 33324
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Albury, New South Wales
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Albury,
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345 West Hancock Avenue
Athens, Georgia 30607
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Athens, GA
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Baltimore, Maryland
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Baltimore, MD
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Boston, Massachusetts 02115
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Boston, MA
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Chapel Hill, North Carolina
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Chapel Hill, NC
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Columbus, Ohio 43212
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Columbus, OH
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Fort Worth, TX
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1930 South Germantown Road
Germantown, Tennessee 38138
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Germantown, TN
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Houston, Texas 77030
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Houston, TX
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Miami, Florida
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Miami, FL
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Minneapolis, Minnesota 55433
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Minneapolis, MN
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3200 West End Avenue
Nashville, Tennessee 37203
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Nashville, TN
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New York, New York 10001
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New York, NY
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Orange, California
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Orange, CA
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655 Craig Road
Saint Louis, Missouri 63141
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Saint Louis, MO
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Salt Lake City, Utah 84124
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Salt Lake City, UT
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San Francisco, California 94121
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San Francisco, CA
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Seattle, Washington
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Seattle, WA
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4001 East Pima Street
Tucson, Arizona 85724
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Tucson, AZ
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West Palm Beach, Florida 33409
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West Palm Beach, FL
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