- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04721977
A Study of Tucatinib (MK-7119) in Combination With Trastuzumab and Capecitabine in Participants With Previously Treated Locally Advanced Unresectable or Metastatic Human Epidermal Growth Factor Receptor 2 Positive (HER2+) Breast Carcinoma (MK-7119-001)
December 16, 2025 updated by: Pfizer
A Phase 2 Open-label, Single Arm Study of MK-7119 in Combination With Trastuzumab and Capecitabine in Participants With Previously Treated Locally Advanced Unresectable or Metastatic HER2+ Breast Carcinoma
The goal of this study is to evaluate the efficacy and safety of tucatinib in combination with trastuzumab and capecitabine in participants with unresectable locally advanced or metastatic HER2+ breast cancer who have had prior treatment with taxane anti-cancer agent, trastuzumab, pertuzumab and trastuzumab emtansine (T-DM1).
The primary hypothesis is that the confirmed objective response rate (cORR) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) as determined by independent central review (ICR) for the combination of tucatinib, trastuzumab and capecitabine, is greater than 20%.
Study Overview
Status
Active, not recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
66
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Fukuoka, Japan, 811-1395
- National Hospital Organization Kyushu Cancer Center ( Site 1009)
-
Fukushima, Japan, 960-1295
- Fukushima Medical University Hospital ( Site 1012)
-
Hiroshima, Japan, 730-8518
- Hiroshima City Hiroshima Citizens Hospital ( Site 1024)
-
Kagoshima, Japan, 892-0833
- Social medical corporation Hakuaikai Sagara Hospital ( Site 1008)
-
Kumamoto, Japan, 862-8655
- Kumamoto Shinto General Hospital ( Site 1007)
-
Osaka, Japan, 540-0006
- National Hospital Organization Osaka National Hospital ( Site 1001)
-
Osaka, Japan, 541-8567
- Osaka International Cancer Institute ( Site 1004)
-
Tokyo, Japan, 104-0045
- National Cancer Center Hospital ( Site 1003)
-
Tokyo, Japan, 113-0033
- Juntendo University Hospital ( Site 1025)
-
Tokyo, Japan, 135-8550
- The Cancer Institute Hospital of JFCR ( Site 1015)
-
Tokyo, Japan, 142-8666
- Showa University Hospital ( Site 1023)
-
Tokyo, Japan, 160-0023
- Tokyo Medical University Hospital ( Site 1006)
-
-
Aichi-ken
-
Nagoya, Aichi-ken, Japan, 464-8681
- Aichi Cancer Center Hospital ( Site 1013)
-
Nagoya, Aichi-ken, Japan, 466-8560
- Nagoya University Hospital ( Site 1021)
-
-
Chiba
-
Kashiwa, Chiba, Japan, 2778577
- National Cancer Center Hospital East ( Site 1002)
-
-
Ehime
-
Matsuyama, Ehime, Japan, 791-0280
- National Hospital Organization Shikoku Cancer Center ( Site 1014)
-
-
Hokkaido
-
Sapporo, Hokkaido, Japan, 003-0804
- National Hospital Organization Hokkaido Cancer Center ( Site 1017)
-
Sapporo, Hokkaido, Japan, 060-8648
- Hokkaido University Hospital ( Site 1022)
-
-
Hyōgo
-
Akashi, Hyōgo, Japan, 673-8558
- Hyogo Cancer Center ( Site 1005)
-
Nishinomiya, Hyōgo, Japan, 663-8501
- Hyogo College of Medicine Hospital ( Site 1019)
-
-
Ibaraki
-
Tsukuba, Ibaraki, Japan, 305-8576
- University of Tsukuba Hospital ( Site 1020)
-
-
Kanagawa
-
Yokohama, Kanagawa, Japan, 241-8515
- Kanagawa Cancer Center ( Site 1010)
-
-
Okinawa
-
Naha, Okinawa, Japan, 901-0154
- Medical Corporation Nahanishikai Nahanishi Clinic ( Site 1016)
-
-
Saitama
-
Kitaadachi-gun, Saitama, Japan, 362-0806
- Saitama Cancer Center ( Site 1018)
-
-
-
-
-
Seoul, South Korea, 03080
- Seoul National University Hospital ( Site 2003)
-
Seoul, South Korea, 03722
- Severance Hospital ( Site 2001)
-
Seoul, South Korea, 06351
- Samsung Medical Center ( Site 2002)
-
-
-
-
Tainan
-
Dawan, Tainan, Taiwan, 704
- National Cheng Kung University Hospital ( Site 3000)
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
20 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Has histologically confirmed HER2+ breast carcinoma
- Has received previous treatment with taxane anti-cancer agent, trastuzumab, pertuzumab, and T-DM1 with the exception of when the use of taxanes is contraindicated or judged not to be the best treatment at the investigator's discretion
- Has radiographically and/or histologically confirmed disease progression on last systemic anticancer treatment
- Has adequate organ function
- Female participant is not pregnant or breastfeeding and is not a woman of childbearing potential (WOCBP) or is a WOCBP and using contraception or abstinent from heterosexual intercourse during the intervention period and for at least 30 days after receiving the last dose of tucatinib, 80 days after receiving the last dose of trastuzumab, or 180 days after receiving the last dose of capecitabine, whichever occurs last and agrees to not donate eggs during this period
- Male participants refrain from donating sperm and are either abstinent from heterosexual intercourse or agree to use contraception during the intervention period and for at least 7 days after receiving the last dose of tucatinib and 90 days after receiving the last dose of capecitabine, whichever occurs last
- Previously treated brain metastasis is stable or progressed, provided there is no clinical indication for immediate re-treatment
Exclusion Criteria:
- Has been previously treated with lapatinib within 12 months of starting study treatment
- Has been previously treated with neratinib, afatinib, tucatinib or capecitabine
- Has a history of exposure to doxorubicin, epirubicin, mitoxantrone, idarubicin, liposomal doxorubicin
- Has had treatment with any systemic anti-cancer therapy including hormonal therapy, non-central nervous system (CNS) radiation or experimental agent ≤3 weeks before first dose of study treatment
- Has any toxicity related to prior cancer therapies that has not resolved with the exception of alopecia, congestive heart failure, anemia
- Has clinically significant cardiopulmonary disease
- Has known myocardial infarction or unstable angina within 6 months prior to the first dose of study treatment
- Has any uncontrolled viral, bacterial or fungal infection within 14 days prior to the first dose of study treatment
- Is positive for Hepatitis B, Hepatitis C or has known chronic liver disease
- Is known to be positive for human immunodeficiency virus (HIV)
- Has evidence within 2 years of the start of study treatment of another malignancy that required systemic treatment
- Has ongoing use of systemic corticosteroids for control of symptoms of brain metastases
- Has any brain lesion thought to require immediate local therapy
- Has known or suspected leptomeningeal disease (LMD)
- Has poorly controlled generalized or complex partial seizures or manifest neurologic progression due to brain metastases
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: Tucatinib + Trastuzumab + Capecitabine
Participants will receive tucatinib plus trastuzumab plus capecitabine.
Tucatinib 300 mg will be administered orally twice daily (BID).
Trastuzumab 8 mg/kg loading dose followed by 6 mg/kg maintenance dose thereafter, will be administered intravenously (IV) on Day 1 of each 21-day cycle.
Capecitabine 1000 mg/m^2 will be administered orally BID on Days 1-14 of each 21-day cycle.
Tucatinib, trastuzumab and capecitabine treatment will continue until unacceptable toxicity, disease progression, death, withdrawal of consent or study closure.
|
Tucatinib 300 mg administered BID via oral tablet
Other Names:
Trastuzumab 8 mg/kg loading dose followed by 6 mg/kg maintenance dose, administered via IV infusion
Other Names:
Capecitabine 1000 mg/m^2 administered BID via oral tablet
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Confirmed Objective Response Rate(cORR) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 Determined by Independent Central Review (ICR): Japanese Participants
Time Frame: From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first (maximum up to 17.8 months)
|
cORR was defined as percentage of participants with confirmed complete response (CR) or partial response (PR), per RECIST version 1.1.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 millimeter(mm).
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented progressive disease(PD) or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study(included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Participants with missing data were considered non-responders.
cORR was determined by ICR.
Two-sided 90% exact confidence interval was based on Clopper-Pearson method.
|
From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first (maximum up to 17.8 months)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Confirmed Objective Response Rate(cORR) Per RECIST Version 1.1 Determined by ICR: All Participants
Time Frame: From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first
|
cORR was defined as percentage of participants with confirmed CR or PR, per RECIST version 1.1.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Participants with missing data were considered non-responders.
cORR was determined by ICR.
Two-sided 90% exact confidence interval was based on Clopper-Pearson method.
|
From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first
|
|
Confirmed Objective Response Rate(cORR) Per RECIST Version 1.1 Determined by Investigator Assessment (INV): Japanese Participants
Time Frame: From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first
|
cORR was defined as percentage of participants with confirmed CR or PR, per RECIST version 1.1.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Participants with missing data were considered non-responders.
cORR was determined by INV.
Two-sided 90% exact confidence interval was based on Clopper-Pearson method.
|
From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first
|
|
Confirmed Objective Response Rate(cORR) Per RECIST Version 1.1 Determined by INV: All Participants
Time Frame: From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first
|
cORR was defined as percentage of participants with confirmed CR or PR, per RECIST version 1.1.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Participants with missing data were considered non-responders.
cORR was determined by ICR.
Two-sided 90% exact confidence interval was based on Clopper-Pearson method.
|
From date of first dose until first documented disease progression or start of new anticancer therapy, whichever occurred first
|
|
Duration of Response (DOR) Per RECIST Version 1.1 Determined by INV: All Participants
Time Frame: From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
DOR was defined as the time from the first objective response (CR or PR that is subsequently confirmed) to documented PD per RECIST version 1.1 or death from any cause, whichever occurred first.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Only those participants who achieved a confirmed response will be included in the analysis.
DOR was determined by INV.
|
From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
|
Duration of Response (DOR) Per RECIST Version 1.1 Determined by INV: Japanese Participants
Time Frame: From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
DOR was defined as the time from the first objective response (CR or PR that is subsequently confirmed) to documented PD per RECIST version 1.1 or death from any cause, whichever occurred first.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Only those participants who achieved a confirmed response will be included in the analysis.
DOR was determined by INV.
|
From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
|
Duration of Response (DOR) Per RECIST Version 1.1 Determined by ICR: All Participants
Time Frame: From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
DOR was defined as the time from the first objective response (CR or PR that is subsequently confirmed) to documented PD per RECIST version 1.1 or death from any cause, whichever occurred first.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Only those participants who achieved a confirmed response will be included in the analysis.
DOR was determined by ICR.
|
From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
|
Duration of Response (DOR) Per RECIST Version 1.1 Determined by ICR: Japanese Participants
Time Frame: From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
DOR was defined as the time from the first objective response (CR or PR that is subsequently confirmed) to documented PD per RECIST version 1.1 or death from any cause, whichever occurred first.
CR: disappearance of all target lesions.
Any pathological lymph nodes must have a reduction in short axis to <10 mm.
PR: a >=30% decrease in the sum of diameters of target lesions, taking as a reference the baseline sum diameters.
Only response assessments before first documented PD or new anti-cancer therapies were considered.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
Only those participants who achieved a confirmed response will be included in the analysis.
DOR was determined by ICR.
|
From date of first objective response (CR or PR that is subsequently confirmed) to documented PD, or death from any cause whichever occurred first
|
|
Progression Free Survival (PFS) Per RECIST Version 1.1 Determined by ICR: All Participants
Time Frame: From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
PFS time was defined as the time from the first date of study treatment to the date of documented disease progression using RECIST v1.1 or death from any cause, whichever occurred first.
Participants who were alive and had not progressed at the time of the analysis were censored at the time of their last tumor assessment documenting absence of PD.
Participants lacking an evaluation of tumor response after their start of study treatment had their event time censored at 1 day.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
PFS was determined by ICR.
|
From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
|
Progression Free Survival (PFS) Per RECIST Version 1.1 Determined by ICR: Japanese Participants
Time Frame: From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
PFS time was defined as the time from the first date of study treatment to the date of documented disease progression using RECIST v1.1 or death from any cause, whichever occurred first.
Participants who were alive and had not progressed at the time of the analysis were censored at the time of their last tumor assessment documenting absence of PD.
Participants lacking an evaluation of tumor response after their start of study treatment had their event time censored at 1 day.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
PFS was determined by ICR.
|
From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
|
Progression Free Survival (PFS) Per RECIST Version 1.1 Determined by INV: All Participants
Time Frame: From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
PFS time was defined as the time from the first date of study treatment to the date of documented disease progression using RECIST v1.1 or death from any cause, whichever occurred first.
Participants who were alive and had not progressed at the time of the analysis were censored at the time of their last tumor assessment documenting absence of PD.
Participants lacking an evaluation of tumor response after their start of study treatment had their event time censored at 1 day.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
PFS was determined by INV.
|
From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
|
Progression Free Survival (PFS) Per RECIST Version 1.1 Determined by INV: Japanese Participants
Time Frame: From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
PFS time was defined as the time from the first date of study treatment to the date of documented disease progression using RECIST v1.1 or death from any cause, whichever occurred first.
Participants who were alive and had not progressed at the time of the analysis were censored at the time of their last tumor assessment documenting absence of PD.
Participants lacking an evaluation of tumor response after their start of study treatment had their event time censored at 1 day.
PD: at least a 20% increase in sum of diameters of target lesions, taking as reference the smallest sum on study (included baseline sum if smallest on study).
In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm.
Appearance of one or more new lesions was also considered PD.
PFS was determined by INV.
|
From date of first dose to the date of documented disease progression or death from any cause whichever occurred first or censoring date
|
|
Overall Survival: All Participants
Time Frame: From start of study treatment to date of death from any cause or censoring date
|
OS was defined as the time from start of study treatment to date of death due to any cause.
In the absence of confirmation of death, survival time was censored at the last date the participant was known to be alive.
Participants lacking data beyond their start of study treatment had their survival time censored at 1 day.
|
From start of study treatment to date of death from any cause or censoring date
|
|
Overall Survival: Japanese Participants
Time Frame: From start of study treatment to date of death from any cause or censoring date
|
OS was defined as the time from start of study treatment to date of death due to any cause.
In the absence of confirmation of death, survival time was censored at the last date the participant was known to be alive.
Participants lacking data beyond their start of study treatment had their survival time censored at 1 day.
|
From start of study treatment to date of death from any cause or censoring date
|
|
Number of Participants With Adverse Events, Serious Adverse Events and Treatment Related Adverse Events and Serious Adverse Events: All Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
An adverse event was defined as any untoward medical occurrence in a participant or clinical investigational participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment.
Serious adverse event was any untoward medical occurrence at any dose that resulted in death; life-threatening (immediate risk of death); required inpatient hospitalization or prolongation of existing hospitalization; persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); congenital anomaly/birth defect or that was considered as an important medical event.
Treatment related adverse events and serious adverse events was judged by investigator.
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
Number of Participants With Adverse Events, Serious Adverse Events and Treatment Related Adverse Events and Serious Adverse Events: Japanese Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
An adverse event was defined as any untoward medical occurrence in a participant or clinical investigational participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment.
t intervention indicated and Grade 5 indicates death related to AE. Participants who discontinued treatment due to AEs were captured under AEs leading to treatment discontinuation.
SAE was any untoward medical occurrence at any dose that resulted in death; life-threatening (immediate risk of death); required inpatient hospitalization or prolongation of existing hospitalization; persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); congenital anomaly/birth defect or that was considered as an important medical event.
Treatment related adverse events and serious adverse events was judged by investigator.
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
Number of Participants With Abnormalities in Laboratory Parameters: All Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
|
Number of Participants With Abnormalities in Laboratory Parameters: Japanese Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
|
Number of Participants With Dose Modifications and Treatment Discontinuations: All Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
|
Number of Participants With Dose Modifications and Treatment Discontinuations: Japanese Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
|
Number of Participants With Clinically Significant Changes in Vital Signs: All Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
|
|
Number of Participants With Clinically Significant Changes in Vital Signs: Japanese Participants
Time Frame: From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
From date of first dose of study treatment to up to 30 days after last dose of study treatment
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Study Director: Pfizer CT.gov Call Center, Pfizer
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Helpful Links
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
April 8, 2021
Primary Completion (Actual)
July 17, 2023
Study Completion (Estimated)
June 30, 2026
Study Registration Dates
First Submitted
January 20, 2021
First Submitted That Met QC Criteria
January 20, 2021
First Posted (Actual)
January 25, 2021
Study Record Updates
Last Update Posted (Actual)
January 9, 2026
Last Update Submitted That Met QC Criteria
December 16, 2025
Last Verified
May 1, 2025
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Neoplasms by Site
- Neoplasms
- Skin Diseases
- Breast Diseases
- Skin and Connective Tissue Diseases
- Breast Neoplasms
- Amino Acids, Peptides, and Proteins
- Proteins
- Heterocyclic Compounds, 1-Ring
- Heterocyclic Compounds
- Nucleic Acids, Nucleotides, and Nucleosides
- Antibodies, Monoclonal, Humanized
- Antibodies, Monoclonal
- Antibodies
- Immunoglobulins
- Immunoproteins
- Blood Proteins
- Serum Globulins
- Globulins
- Deoxycytidine
- Cytidine
- Pyrimidine Nucleosides
- Pyrimidines
- Nucleosides
- Uracil
- Pyrimidinones
- Deoxyribonucleosides
- Fluorouracil
- Trastuzumab
- Capecitabine
- tucatinib
Other Study ID Numbers
- 7119-001
- MK-7119-001 (Other Identifier: Merck)
- jRCT2051200152 (Registry Identifier: jRCT)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
YES
IPD Plan Description
http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
Yes
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Breast Cancer
-
Baylor Breast Care CenterRecruitingBreast Cancer | Breast Neoplasm | Triple Negative Breast Cancer | Triple Negative Breast Neoplasms | HER2-positive Breast Cancer | Breast Cancer Stage II | Breast Cancer Female | Breast Cancer Stage III | Estrogen Receptor-positive Breast Cancer | Hormone Receptor-positive Breast Cancer | Breast Cancer InvasiveUnited States
-
Innocrin PharmaceuticalCompletedBreast Cancer | Advanced Breast Cancer | Metastatic Breast Cancer | Triple Negative Breast Cancer | Male Breast Cancer | ER+ Breast Cancer | Cancer of the BreastUnited States
-
Fred Hutchinson Cancer CenterNational Cancer Institute (NCI)CompletedInflammatory Breast Cancer | Male Breast Cancer | Stage IV Breast Cancer | Stage IIIB Breast Cancer | Estrogen Receptor-negative Breast Cancer | Estrogen Receptor-positive Breast Cancer | Progesterone Receptor-negative Breast Cancer | Progesterone Receptor-positive Breast CancerUnited States
-
Northwestern UniversityEisai Inc.UnknownMale Breast Cancer | Stage II Breast Cancer | Stage IIIA Breast Cancer | Stage IIIB Breast Cancer | Triple-negative Breast Cancer | Stage IA Breast Cancer | Stage IB Breast Cancer | Stage IIIC Breast Cancer | Estrogen Receptor-negative Breast Cancer | Progesterone Receptor-negative Breast Cancer | HER2-negative...United States
-
University of Colorado, DenverCompletedStage IV Breast Cancer | Stage II Breast Cancer | Stage IIIA Breast Cancer | Stage IIIB Breast Cancer | Stage IA Breast Cancer | Stage IB Breast Cancer | Stage IIIC Breast CancerUnited States
-
National Cancer Institute (NCI)TerminatedMale Breast Cancer | Stage IV Breast Cancer | Stage IIIA Breast Cancer | Stage IIIB Breast Cancer | Triple-negative Breast Cancer | Stage IIIC Breast Cancer | Recurrent Breast Cancer | Estrogen Receptor-negative Breast Cancer | Progesterone Receptor-negative Breast Cancer | HER2-negative Breast CancerCanada
-
Mayo ClinicMarker Therapeutics, Inc.CompletedHER2-positive Breast Cancer | Male Breast Cancer | Stage II Breast Cancer | Stage IIIA Breast Cancer | Stage IIIB Breast Cancer | Stage IIIC Breast CancerUnited States
-
Rutgers, The State University of New JerseyNational Cancer Institute (NCI); Rutgers Cancer Institute of New JerseyActive, not recruitingStage IIIA Breast Cancer | Stage IIIB Breast Cancer | Triple-negative Breast Cancer | Stage IIA Breast Cancer | Stage IIB Breast Cancer | Stage IIIC Breast Cancer | Estrogen Receptor-negative Breast Cancer | Progesterone Receptor-negative Breast Cancer | HER2-negative Breast CancerUnited States
-
University of Southern CaliforniaNational Cancer Institute (NCI)TerminatedMale Breast Cancer | Stage IV Breast Cancer | Stage II Breast Cancer | Stage IIIA Breast Cancer | Stage IIIB Breast Cancer | Stage IA Breast Cancer | Stage IB Breast Cancer | Stage IIIC Breast Cancer | Recurrent Breast CancerUnited States
-
University of Central FloridaFlorida Department of HealthRecruitingBreast Cancer | Breast Cancer Female | Breast Cancer Diagnosis | Breast Cancer Survivors | Breast Cancer Detection | Breast Cancer AwarenessUnited States
Clinical Trials on Tucatinib
-
Cascadian Therapeutics Inc.Completed
-
PfizerActive, not recruitingSafety and Pharmacokinetics of Tucatinib (MK-7119) in Chinese Participants With Cancer (MK-7119-002)Breast Neoplasms | Colorectal Cancer | Metastatic HER2+ Advanced Breast Cancer | Gastric or Gastroesophageal Junction Adenocarcinoma (GEC)China
-
Institut CuriePfizer; UNICANCER; EurofinsRecruitingUnresectable Breast Cancer | Metastatic Breast Cancer ( HER2 Negative)France
-
iOMEDICO AGSeagen Germany GmbH (a Pfizer company)CompletedHER2-positive Breast CancerAustria, Germany
-
Memorial Sloan Kettering Cancer CenterPfizer; Seagen Inc.Active, not recruitingA Study of Tucatinib Given Before Surgery to People With HER2+ Cancers That Have Spread to the BrainMetastatic Breast CancerUnited States
-
Memorial Sloan Kettering Cancer CenterRecruitingRectal Cancer | Rectal Adenocarcinoma | Adenocarcinoma of the Rectum | Locally Advanced Rectal Adenocarcinoma | HER2 Positive Rectal AdenocarcinomaUnited States
-
Institut CurieSeagen Inc.RecruitingHER2-positive Breast CancerFrance
-
Seagen Inc.CompletedHER2 Positive Breast CancersUnited States, Canada
-
Criterium, Inc.RecruitingBreast Cancer | Pretreated Unresectable Locally Advanced or Metastatic HER2+ Breast CancerUnited States
-
MedSIRNot yet recruitingBreast Cancer | HER 2 Positive Advanced Breast Cancer