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Afatinib and Paclitaxel in Patients With Advanced HER2-Positive Trastuzumab-Refractory Advanced Esophagogastric Cancer

A Phase II Study of Afatinib and Paclitaxel in Patients With Advanced HER2-Positive Trastuzumab Refractory Advanced Esophagogastric Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01522768
Enrollment
42
Registered
2012-02-01
Start date
2012-03-31
Completion date
2023-02-20
Last updated
2023-11-01

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

Conditions

Esophageal Cancer, Gastric Cancer

Keywords

ESOPHAGUS, STOMACH, Afatinib, paclitaxel, trastuzumab, 11-166

Brief summary

The purpose of this study is to find out what effects, good or bad, the combination of standard chemotherapy agent paclitaxel with the investigational (experimental) drug afatinib that targets HER2, has on HER2-positive esophagogastric cancer that started to get bigger despite previous treatment with trastuzumab. The doctors will also study the tumor to understand why it grew while on trastuzumab treatment and to see the effects afatinib and paclitaxel has on the tumor.

Interventions

DRUGAfatinib and Paclitaxel

All patients receiving therapy on trial with afatinib and trastuzumab will continue on afatinib and trastuzumab until disease progression or intolerable toxicity. All additional patients will be enrolled on afatinib and paclitaxel. Patients will be treated with afatinib and paclitaxel combination. Patients will receive oral afatinib 40 mg daily plus paclitaxel 80 mg/m\^2 intravenously on day 1, 8, and 15 of a 28-day cycle.

Sponsors

Boehringer Ingelheim
CollaboratorINDUSTRY
University of Southern California
CollaboratorOTHER
Dana-Farber Cancer Institute
CollaboratorOTHER
United States Department of Defense
CollaboratorFED
Memorial Sloan Kettering Cancer Center
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

* Pathologically or cytologically confirmed esophagogastric cancer. * HER2 overexpression and/or amplification as determined by immunohistochemistry (3+) or FISH (≥2.0) * Previously received trastuzumab as part of a regimen in the perioperative or metastatic setting with evidence of progression 9Zr-trastuzumab use as imaging agent for 89Zr-trastuzumab PET permitted.. * May have previously received lapatinib as part of a regimen in the perioperative or metastatic setting with evidence of progression of disease. Washout period for lapatinib of 14 days. * Completion of previous chemotherapy regimen ≥2 weeks prior to the start of study treatment. Other chemotherapy regimens may have been administered between the time of progression on prior trastuzumab containing regimen and protocol therapy. No restriction on prior chemotherapy regimens for advanced stage disease. * At least one measurable metastatic lesion according to RECIST 1.1 criteria. Ascites, pleural effusions, and bone metastases are not considered measurable. Minimum indicator lesion size = 10 mm by helical CT or = 20 mm by conventional techniques. Pathological nodes must be = 15 mm by the short axis to be considered measurable. * Patients aged 18 years or older, as no dosing or adverse event data are currently available on the use of afatinib in patients \<18 years of age, children are excluded from this study. * Life expectancy of at least three (3) months. * Karnofsky performance status ≥60% * All patients with disease technically amenable to biopsy will be asked to undergo a biopsy. Patient must agree to allow 2 biopsies of any malignant lesion that can be accessed by endoscopy or with the aid or radiology (i.e. CT guided). * Patients who have previously provided samples at any time after trastuzumab resistance will be exempt from biopsy at the start of therapy. * Consent to preservation of frozen and fixed samples of tumor cores for evaluation * Able to swallow and retain oral medication. * Negative serum HCG pregnancy test for premenopausal women of reproductive capacity and for women less than 12 months after menopause. * Willingness to use birth control while on study. * Asymptomatic, central nervous system metastases are permitted.

Exclusion criteria

* Patients receiving any concurrent anticancer therapy or investigational agents with the intention of treating esophagogastric cancer. 89Zr-trastuzumab uses as imaging agent for 89Zr-trastuzumab PET permitted. * Prior disease progression on docetaxel or paclitaxel in metastatic setting. * Patients who are unwilling to consent to mandatory tumor biopsy. Patients with archival tissue permitted to enroll on study per MSK Principal Investigator discretion Women who are pregnant or breast feeding. * Concurrent radiotherapy is not permitted for disease progression on treatment on protocol (except in the context specified in section 9.0), but might be allowed for pre-existing non-target lesions with approval from the principal investigator of the trial. * Concurrent medical conditions which may increase the risk of toxicity, including ongoing or active infection, history of significant bleeding disorder unrelated to cancer (congenital bleeding disorders, acquired bleeding disorders within one year), HIV-positive. * Subjects with acute Hepatitis B are not eligible. Subjects with chronic hepatitis are eligible if their condition is stable and in the opinion of the investigator, if consulted, would not pose a risk to subject safety. * History or presence of clinically relevant cardiovascular abnormalities such as uncontrolled hypertension, congestive heart failure NYHA classification of 3, unstable angina or poorly controlled arrhythmia. Myocardial infarction within 6 months prior to study entry. * Baseline (\< 1 month before treatment) cardiac left ventricular function with resting ejection fraction of less than 50% measured by echocardiogram. * Known pre-existing interstitial lung disease. * Significant or recent acute gastrointestinal disorders with diarrhea as a major symptom e.g., Crohn's disease, malabsorption, or CTCAEGrade \>2 diarrhea of any etiology. * Unwillingness to give written informed consent, unwillingness to participate, or inability to comply with the protocol for the duration of the study. * Active hepatitis B infection, active hepatitis C infection * Known HIV carrier * Known or suspected active drug or alcohol abuse. Restricted Therapies * Additional experimental anti-cancer treatment and/or standard chemo-, immunotherapy, hormone treatment (with the exception of megestrol acetate), or concurrent radiotherapy is not allowed concomitantly with the administration of study treatment (with the exception listed in section 9.0) 89Zr-trastuzumab use as imaging agent for 89Zr-trastuzumab PET permitted. Afatinib is a substrate of P-gp and its plasma concentrations can be affected by the use of P-gp inhibitors (data on file) and it is also likely that P-gp inducers could also influence afatinib plasma concentrations. * The use of potent P-gp inhibitors (including cyclosporine, erythromycin, ketoconazole, itraconazole, quinidine, Phenobarbital salt with quinidine, ritonavir, valspodar, verapamil) and potent P-gp inducers (including St John's wort, rifampicin) has to be avoided during treatment with afatinib. Any exemptions to this have to be discussed with the principal investigator.

Design outcomes

Primary

MeasureTime frameDescription
Efficacy2 yearsof afatinib in patients with metastatic HER2-positive esophagogastric cancer as measured by overall clinical benefit defined as response rate (ORR) = stable disease (SD) complete response (CR) or partial response (PR) at 4 months by RECIST 1.1 criteria

Secondary

MeasureTime frameDescription
Number of Participants Evaluated for Toxicity2 yearsThe type, frequency, severity, timing, and relationship of each adverse event will be determined as per the NCI Common Toxicity Criteria, version 4.0.

Countries

United States

Participant flow

Participants by arm

ArmCount
Afatinib and Paclitaxel
This is a multi-institution, open-label, non-randomized, Phase II evaluation of oral afatinib daily and intravenous paclitaxel in participants with trastuzumab refractory HER2-positive metastatic or recurrent esophagogastric adenocarcinoma.
42
Total42

Baseline characteristics

CharacteristicAfatinib and Paclitaxel
Age, Continuous63 years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
40 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
5 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
2 Participants
Race (NIH/OMB)
White
34 Participants
Region of Enrollment
United States
42 Participants
Sex: Female, Male
Female
12 Participants
Sex: Female, Male
Male
30 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 42
other
Total, other adverse events
41 / 42
serious
Total, serious adverse events
22 / 42

Outcome results

Primary

Efficacy

of afatinib in patients with metastatic HER2-positive esophagogastric cancer as measured by overall clinical benefit defined as response rate (ORR) = stable disease (SD) complete response (CR) or partial response (PR) at 4 months by RECIST 1.1 criteria

Time frame: 2 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Afatinib and PaclitaxelEfficacyPartial Response4 Participants
Afatinib and PaclitaxelEfficacyProgression of Disease18 Participants
Afatinib and PaclitaxelEfficacyStable Disease12 Participants
Afatinib and PaclitaxelEfficacyNot Evaluable8 Participants
Secondary

Number of Participants Evaluated for Toxicity

The type, frequency, severity, timing, and relationship of each adverse event will be determined as per the NCI Common Toxicity Criteria, version 4.0.

Time frame: 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Afatinib and PaclitaxelNumber of Participants Evaluated for Toxicity42 Participants

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