A Phase 2 interventional study of BAY2927088 in Advanced Solid Tumors and HER2 Mutation, sponsored by Bayer. Recruiting at 54 sites in 11 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-04.
Sponsored by Bayer · Phase 2, Interventional, and Treatment
Researchers are looking for a better way to treat people who have solid tumors with HER2-activating mutations. Before a treatment can be approved for people to take, researchers do clinical trials to better understand its safety and how it works.
In this trial, the researchers want to learn how well BAY2927088 (sevabertinib) works in people with different types of solid tumors with HER2 mutations. These include tumors in the colon or rectum, the uterus and the cervix (lower part of the uterus), the breast, the bladder, and the biliary tract (includes gall bladder and bile ducts) as well as other types of solid tumors with the exception of people with advanced non-small cell lung cancer (NSCLC).
Solid tumors may have specific changes or mutations to a gene called human epidermal growth receptor-2 (HER2). This leads to the formation of an abnormal form of HER2 protein in the cancer cells, resulting in increased cell growth. The study treatment, BAY2927088, is expected to block the abnormal HER2 protein which may stop the spread of cancer.
The trial will include about 111 participants who are at least 18 years old. All the participants will take 20 mg of BAY2927088 as tablets by mouth.
The participants will take treatments in 3-week periods called cycles. These 3-week cycles will be repeated throughout the trial. The participants can take BAY2927088 until their cancer gets worse, until they have medical problems, or until they leave the trial.
During the trial, the doctors will take imaging scans of different parts of the body to study the spread of cancer and will check heart health using echocardiogram or cardiac magnetic resonance imaging (MRI) and electrocardiogram (ECG). The doctors will also take blood and urine samples and do physical examinations to check the participants' health. They will ask questions about how the participants are feeling and if they have any medical problems.
6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.
This study's planned enrollment of 111 is above the median of 76 across 4,800 interventional studies indexed under Colorectal Neoplasms.
Browse Colorectal Neoplasms studies →Bayer is the lead sponsor of 1,674 studies on the registry; 51 are open to participants now.
Of its 214 completed or terminated interventional studies of FDA-regulated products, 132 (62%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.
In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.
The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.
The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.
The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.
“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HER2
HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.
In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Measurable disease
The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.
The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
RECIST
The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.
“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Brain metastases
Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).
Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Adult participants with metastatic or unresectable solid tumors with HER-2 activating mutations including: colorectal, biliary tract, bladder, cervical, endometrial, breast, and other solid tumor types. Participants will receive BAY2927088 20 mg BID until disease progression per RECICST 1.1, unacceptable toxicity, or until any other withdrawal criteria. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1; BID: twice a day
Drug: BAY2927088
tablet, oral
Also known as: Sevabertinib
Objective Response Rate (ORR) per RECIST 1.1 as assessed by BICR
ORR is defined as the proportion of participants with a best overall response of confirmed complete response (CR) or partial response (PR) per RECIST 1.1 by BICR. CR is defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have decreased in size to have a short axis of \<10 mm. PR is defined as a ≥30% decrease in the sum of diameters of target lesions taking as reference the baseline sum of diameters. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1; BICR = blinded independent central review (BICR)
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
Duration of response (DOR) per RECIST 1.1 as assessed by BICR
DOR is defined as the time from date of first documented complete or partial response (if confirmed) until the earliest date of progressive disease (PD) per RECIST 1.1 as assessed by BICR, or death from any cause, whichever occurs first. PD is defined as a ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1; BICR = blinded independent central review (BICR)
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
Time to response (TTR) per RECIST 1.1 as assessed by BICR
TTR is defined as the time from the start of study treatment until the date of first documented complete or partial response (if confirmed) per RECIST 1.1 as assessed by BICR. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1; BICR = blinded independent central review (BICR)
Time frame: From first participant enrolled until end of treatment or end of imaging active follow-up (up to approximately 3 years)
ORR per RECIST 1.1 as assessed by the investigator
ORR is defined as the proportion of participants with a best overall response of confirmed CR or confirmed PR per RECIST 1.1 by investigator. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
Disease control rate (DCR) per RECIST 1.1 as assessed by BICR
DCR is defined as the proportion of participants with a best overall response of confirmed complete response (CR) or partial response (PR) or stable disease (SD), by the BICR per RECIST 1.1. SD is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum of diameters while on study.
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
DCR ≥12 weeks per RECIST 1.1 as assessed by BICR
Defined as the proportion of participants with a best overall response of confirmed CR or PR or SD (for at least 12 weeks following the first study intervention), by the BICR per RECIST 1.1.
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
Progression-free survival (PFS) per RECIST 1.1 as assessed by BICR
Defined as the time from date of start of treatment until the earliest date of PD per RECIST 1.1 as assessed by the BICR, or death from any cause, whichever occurs first.
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
Disease control rate (DCR) per RECIST 1.1 as assessed by the investigator
Defined as the proportion of participants with a best overall response of confirmed CR or PR or SD, by the investigator per RECIST 1.1.
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
DCR ≥12 weeks per RECIST 1.1 as assessed by the investigator
Defined as the proportion of participants with a best overall response of confirmed CR or PR or SD (for at least 12 weeks following the first study intervention), by the investigator per RECIST 1.1.
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
Progression-free survival (PFS) per RECIST 1.1 as assessed by the investigator
Defined as the time from date of start of treatment until the earliest date of PD per RECIST 1.1 as assessed by the investigator, or death from any cause, whichever occurs first
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
DOR per RECIST 1.1 as assessed by the investigator
DOR is defined as the time from date of first documented complete or partial response (if confirmed) until the earliest date of PD per RECIST 1.1 as assessed by the investigator, or death from any cause, whichever occurs first. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1
Time frame: From start of study intervention until the first documented progression, or death from any cause, or end of study (up to approximately 3 years), whichever comes first
TTR per RECIST 1.1 as assessed by the investigator
TTR is defined as the time from the start of study treatment until the date of first documented complete or partial response (if confirmed) per RECIST 1.1 as assessed by the investigator. RECIST 1.1 = Response Evaluation Criteria in Solid Tumors, version 1.1
Time frame: From first participant enrolled until end of treatment or end of imaging active follow-up (up to approximately 3 years)
Overall survival (OS)
Defined as the time from the start of study treatment to the date of death from any cause.
Time frame: From start of study intervention until death from any cause, or end of study (up to approximately 3 years), whichever comes first
Number of participants with treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (TESAEs) per CTCAE v 5.0, categorized by severity, including number of participants who discontinue study treatment due to an AE
From first administration of study intervention up to 30 days after the last dose of study intervention.
Time frame: From first participant enrolled until up to 30 days after the last administration of study treatment
Time to deterioration in EORTC QLQ-C30 physical functioning domain score
The EORTC QLQ-C30 is a multi-dimensional validated cancer-specific quality of life (QoL) questionnaire developed by the EORTC Study Group on QoL for use in international clinical trial settings. The EORTC QLQ-C30 will be used to evaluate the time to deterioration in the physical functioning domain score. EORTC QLQ-C30 = European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30
Time frame: Baseline and up until end of treatment or end of imaging active follow-up (up to approximately 3 years)
Change from baseline in EORTC QLQ-C30 physical functioning domain score
The EORTC QLQ-C30 is a multi-dimensional validated cancer-specific quality of life (QoL) questionnaire developed by the EORTC Study Group on QoL for use in international clinical trial settings. The EORTC QLQ-C30 will be used to evaluate the change from baseline in the physical functioning domain score. EORTC QLQ-C30 = European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30
Time frame: Baseline and up until end of treatment or end of imaging active follow-up (up to approximately 3 years)
Change from baseline in EORTC QLQ-C30 global health status/quality of life (QoL)
The EORTC QLQ-C30 is a multi-dimensional validated cancer-specific quality of life (QoL) questionnaire developed by the EORTC Study Group on QoL for use in international clinical trial settings. The EORTC QLQ-C30 will be used to evaluate the change from baseline in global health status/QoL. EORTC QLQ-C30 = European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30
Time frame: Baseline and up until end of treatment or end of imaging active follow-up (up to approximately 3 years)
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Plan to share: No — Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.
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From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Studies of the drug tested here: Sevabertinib