Trial Outcomes & Findings for A Study to Characterize Colon Pathology in Patients With HER2 Amplified Breast Cancer Treated With Neratinib (NCT NCT04366713)

NCT ID: NCT04366713

Last Updated: 2023-02-10

Results Overview

The primary endpoint is to describe the changes in colon pathology between the baseline colonoscopy and the second colonoscopy.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

6 participants

Primary outcome timeframe

From baseline to second colonoscopy, which is 88 days after start of neratinib treatment.

Results posted on

2023-02-10

Participant Flow

Patients with stage 1 to 3c disease receiving extended adjuvant therapy are anticipated to participate in the study for approximately 1 year: 1 month for screening and 12 months of treatment, and 1 month of safety follow up. Patients with mBC are anticipated to participate in the study for an average of 12 month: 1 month of screening, 9.5 months for treatment, and 1 month of safety follow up.

Screening activities are to be conducted within 28 days prior to Cycle 1/Day 1, except for serum or urine pregnancy test for women of child-bearing potential, which should be performed, both, at screening and repeated within 72 hours prior to Cycle 1/Day 1. Documentation of locally assessed ERBB2-amplified status by fluorescence in situ hybridization (FISH) (\>2.2) or ERBB2 overexpression by immunohistochemistry (IHC) (3+) by a validated approved method (Wolff et al, 2013) must be confirmed.

Participant milestones

Participant milestones
Measure
Breast Cancer Participants Treated With Neratinib
Participants with stage 1 to 3c disease receiving extended adjuvant therapy are anticipated to participate in the study for approximately 1 year: 1 month for screening and 12 months of treatment, and 1 month of safety follow up. Patients with mBC are anticipated to participate in the study for an average of 12 month: 1 month of screening, 9.5 months for treatment, and 1 month of safety follow up.
Overall Study
STARTED
6
Overall Study
Treated
5
Overall Study
COMPLETED
4
Overall Study
NOT COMPLETED
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

A Study to Characterize Colon Pathology in Patients With HER2 Amplified Breast Cancer Treated With Neratinib

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Neratinib
n=5 Participants
Overall Neratinib all arms
Age, Continuous
45.6 years
STANDARD_DEVIATION 14.8 • n=5 Participants
Sex: Female, Male
Female
5 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
5 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
Portugal
5 Participants
n=5 Participants

PRIMARY outcome

Timeframe: From baseline to second colonoscopy, which is 88 days after start of neratinib treatment.

Population: Subjects who had a baseline colonoscopy and a second colonoscopy with findings to report.

The primary endpoint is to describe the changes in colon pathology between the baseline colonoscopy and the second colonoscopy.

Outcome measures

Outcome measures
Measure
Neratinib Patients With 2 Colonoscopies
n=4 Participants
Subjects who had a baseline colonoscopy and a second colonoscopy with findings to report.
Changes in Colon Pathology
No Significant Findings
2 participants
Changes in Colon Pathology
Mild Changes
2 participants

SECONDARY outcome

Timeframe: From baseline to second colonoscopy, which is 88 days after start of neratinib treatment.

Population: All treated patients

Incidence and severity of treatment emergent (TEAE) diarrhea will be summarized according to the NCI-CTCAE version 4.0 in the first cycle of neratinib treatment, which is from the time of the first colonoscopy to the second colonoscopy, or 28 days for subjects with only one colonoscopy. Incidence is defined as the number of patients experiencing diarrhea divided by the number of patients at risk.

Outcome measures

Outcome measures
Measure
Neratinib Patients With 2 Colonoscopies
n=5 Participants
Subjects who had a baseline colonoscopy and a second colonoscopy with findings to report.
Incidence and Severity of Diarrhea
TEAE Diarrhea
80 percentage of participants
Incidence and Severity of Diarrhea
Serious Diarrhea
0 percentage of participants

Adverse Events

Safety

Serious events: 2 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Safety
n=5 participants at risk
Safety population (treated patients)
Cardiac disorders
Pericardial effusion
20.0%
1/5 • Number of events 1 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Infections and infestations
Pneumonia
20.0%
1/5 • Number of events 1 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Injury, poisoning and procedural complications
Spinal fracture
20.0%
1/5 • Number of events 1 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Respiratory, thoracic and mediastinal disorders
Pleural effusion
20.0%
1/5 • Number of events 1 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population

Other adverse events

Other adverse events
Measure
Safety
n=5 participants at risk
Safety population (treated patients)
Blood and lymphatic system disorders
Thrombocytopenia
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Abdominal distension
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Abdominal pain
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Constipation
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Diarrhoea
100.0%
5/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Faeces hard
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Faeces soft
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Flatulence
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Nausea
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Gastrointestinal disorders
Vomiting
60.0%
3/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Infections and infestations
Paronychia
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Investigations
Platelet count decreased
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Metabolism and nutrition disorders
Decreased appetite
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Musculoskeletal and connective tissue disorders
Muscle spasms
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Nervous system disorders
Dizziness
40.0%
2/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population
Nervous system disorders
Headache
20.0%
1/5 • From time of first dose, through 28 days after last dose, assessed up to 16 months.
Safety population: Participants receiving at least 1 dose of investigational product. Serious and Other Adverse Events were monitored/assessed only in the safety population

Additional Information

Senior Director, Clinical Operations

Puma Biotechnology, Inc.

Phone: 1-424-248-6500

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place