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An Open-Label Study to Characterize the Incidence and Severity of Diarrhea in Patients With Early-Stage HER2+ Breast Cancer Treated With Neratinib and Loperamide

Phase 2
Completed
Conditions
Early Stage HER2+ Breast Cancer
Interventions
Registration Number
NCT02400476
Lead Sponsor
Puma Biotechnology, Inc.
Brief Summary

An Open-Label Study to Characterize the Incidence and Severity of Diarrhea in Patients with Early-Stage HER2+ Breast Cancer Treated with Neratinib and Loperamide or other prophylactic measures.

Detailed Description

This is an open-label, Phase 2 study that will investigate the incidence and severity of diarrhea in early-stage HER2+ breast cancer patients receiving neratinib with loperamide, alone and in combination with an anti-inflammatory treatment or a bile acid sequestrant treatment, or neratinib dose escalation, who have previously undergone a course of trastuzumab therapy in the adjuvant setting.

Patients will receive:

* Neratinib 240 mg orally once daily with food for thirteen 28-day cycles.

* Loperamide daily for two 28-day cycles and then as needed.

* Amendment 3, an anti-inflammatory treatment for one cycle and loperamide to be administered daily for two 28-day cycles and then as needed. Closed to enrollment.

* Amendment 4, colestipol for one cycle and loperamide to be administered one cycle and then as needed. Closed to enrollment.

* Amendment 5, colestipol for one cycle and loperamide as needed. Closed to enrollment.

* Amendment 6/6.1, 120 mg neratinib for Week 1 (C1D1-C1D7), followed by 160 mg neratinib for Week 2 (C1D8-C1D14), followed by 240 mg neratinib for Week 3 and thereafter (C1D15 to end of treatment). Loperamide as needed. Closed to enrollment.

* Amendment 7/7.1, 160 mg neratinib for the first 2 weeks (C1D1 - C1D14), followed by 200 mg neratinib for the next 2 weeks (C1D15 - C1D28), followed by 240 mg neratinib thereafter (C2D1 to end of treatment). Loperamide as needed.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
563
Inclusion Criteria
  • Age ≥18; male or female
  • Early breast cancer (stage I-3c)
  • Documented HER2+ tumor: HER2 immunohistochemistry (IHC) 3+ or ISH+
  • Prior course of adjuvant trastuzumab given >2 weeks and ≤1 year from enrollment
  • No evidence of local/regional recurrence or metastatic disease
  • Eastern Cooperative Oncology Group (ECOG) status of 0 or 1
  • Male patients with female partners of childbearing potential must agree and commit to use a condom and women of childbearing potential must not be pregnant and must agree and commit to the use of a highly effective non-hormonal method of contraception
  • Left ventricular ejection fraction (LVEF) ≥50% measured by multiple-gated acquisition scan (MUGA) or ECHO
Exclusion Criteria
  • Major surgery < 30 days
  • Chemotherapy, investigational agents, other cancer therapy (except hormonal therapy) < 14 days
  • Corrected QT Interval (QTc) >0.450 seconds (males) or >0.470 (females) or other active cardiac disease
  • Significant chronic GI disorder with diarrhea as a major symptom
  • Active, unresolved infections
  • Currently pregnant or breast-feeding

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Colestipol and LoperamideLoperamide240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Colestipol for 1 cycle and loperamide to be administered 1 cycle and then as needed, thereafter.
LoperamideLoperamide240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Loperamide daily for two 28-day cycles and then as needed.
Neratinib Dose Escalation 2Loperamide160 mg neratinib for the first 2 weeks, followed by 200 mg neratinib for the next 2 weeks, followed by 240 mg neratinib thereafter (C2D1 to End of treatment. Loperamide will be administered on an as-needed basis only.
Colestipol and LoperamideNeratinib240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Colestipol for 1 cycle and loperamide to be administered 1 cycle and then as needed, thereafter.
Colestipol with Loperamide as neededNeratinib240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Colestipol for 1 cycle and loperamide to be administered as needed.
Neratinib Dose Escalation 1Neratinib120 mg Neratinib for Week 1, followed by 160 mg Neratinib starting for Week 2, followed by 240 mg Neratinib starting at Week 3 and thereafter (C1D15 to End of Treatment). Loperamide administered as needed.
Colestipol with Loperamide as neededColestipol240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Colestipol for 1 cycle and loperamide to be administered as needed.
Budesonide and LoperamideNeratinib240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Anti-inflammatory treatment for 1 cycle and Loperamide to be administered daily for two 28-day cycles and then as needed, thereafter.
Neratinib Dose Escalation 2Neratinib160 mg neratinib for the first 2 weeks, followed by 200 mg neratinib for the next 2 weeks, followed by 240 mg neratinib thereafter (C2D1 to End of treatment. Loperamide will be administered on an as-needed basis only.
LoperamideNeratinib240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Loperamide daily for two 28-day cycles and then as needed.
Budesonide and LoperamideLoperamide240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Anti-inflammatory treatment for 1 cycle and Loperamide to be administered daily for two 28-day cycles and then as needed, thereafter.
Budesonide and LoperamideBudesonide240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Anti-inflammatory treatment for 1 cycle and Loperamide to be administered daily for two 28-day cycles and then as needed, thereafter.
Colestipol and LoperamideColestipol240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Colestipol for 1 cycle and loperamide to be administered 1 cycle and then as needed, thereafter.
Colestipol with Loperamide as neededLoperamide240 mg Neratinib orally once daily with food for thirteen 28-day cycles. Colestipol for 1 cycle and loperamide to be administered as needed.
Neratinib Dose Escalation 1Loperamide120 mg Neratinib for Week 1, followed by 160 mg Neratinib starting for Week 2, followed by 240 mg Neratinib starting at Week 3 and thereafter (C1D15 to End of Treatment). Loperamide administered as needed.
Primary Outcome Measures
NameTimeMethod
Percentage of Patients With Grade 3 or Higher Diarrhea, According to NCI CTCAE v4.0.From first dose of investigational product through 28 days after last dose, up to 15.5 months.

The primary objective of this study is to characterize the percentage of patients with Grade 3 or higher diarrhea in patients with early-stage HER2 overexpressed/amplified (HER2+) breast cancer treated with neratinib when administered with intensive loperamide prophylaxis, after prior treatment with trastuzumab. Grade 3: Increase of \>=7 stools per day over baseline; incontinence; hospitalization indicated; severe increase in ostomy output compared to baseline; limiting self care ADL. Grade 4: Life-threatening consequences; urgent intervention indicated. Grade 5: Death.

Secondary Outcome Measures
NameTimeMethod
Percentage of Patients With Serious Adverse Events and Other Adverse Events of Special InterestFrom first dose of investigational product through 28 days after last dose, up to 15.5 months.

Assess the percentage of patients with serious adverse events (SAEs) and other adverse events of special interest (AESI). AESIs were selected based on the known safety profile of neratinib as well as typical key body system toxicity concerns generally reviewed for any new drug. These AESIs were grouped into the following categories: gastrointestinal toxicity (diarrhea and stomatitis), hepatotoxicity, pulmonary toxicity (interstitial lung disease), cardiac toxicity (LVEF decreased), and dermatologic toxicity (rash and nail disorders). The AESIs were analyzed by searching the clinical database for all TEAEs and SAEs using either Standardized MedDRA Queries (SMQs) or, if an applicable SMQ did not exist, a Sponsor-defined list of MedDRA preferred terms.

Percentage of Patients With Diarrhea by Grade, According to the National Cancer Institute Common Terminology Criteria (NCI CTCAE), Version 4.0.From first dose of investigational product through 28 days after last dose, up to 15.5 months.

Assess the percentage of patients with diarrhea after the administration of an anti-inflammatory agent, a bile acid sequestrant, or following two different dose-escalation regimens of neratinib, by maximum CTC grade. Grade 1: an increase of \<4 stools per day over baseline; mild increase in ostomy output compared to baseline. Grade 2: Increase of 4 - 6 stools per day over baseline; moderate increase in ostomy output compared to baseline. Grade 3: Increase of \>=7 stools per day over baseline; incontinence; hospitalization indicated; severe increase in ostomy output compared to baseline; limiting self care ADL. Grade 4: Life-threatening consequences; urgent intervention indicated. Grade 5: Death.

Trial Locations

Locations (57)

Alabama Oncology

🇺🇸

Birmingham, Alabama, United States

Compassionate Care Research Group Inc.

🇺🇸

Riverside, California, United States

St. Joseph Heritage Healthcare

🇺🇸

Fullerton, California, United States

Ronald Reagan UCLA Medical Center

🇺🇸

Los Angeles, California, United States

Emad Ibrahim, M.D., Inc.

🇺🇸

Redlands, California, United States

Torrance Memorial Physician Network Cancer Care Associates

🇺🇸

Redondo Beach, California, United States

UCSF Helen Diller Family Comprehensive Cancer Center

🇺🇸

San Francisco, California, United States

The Oncology Institute of Hope and Innovation

🇺🇸

Santa Ana, California, United States

Cancer Center of Santa Barbara with Sansum Clinic

🇺🇸

Santa Barbara, California, United States

Central Coast Medical Oncology Corporation

🇺🇸

Santa Maria, California, United States

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Alabama Oncology
🇺🇸Birmingham, Alabama, United States
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