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Beamion BCGC-1: A Study to Find a Suitable Dose of Zongertinib Used Alone and in Combination With Other Treatments to Test Whether it Helps People With Different Types of HER2+ Cancer That Has Spread

Beamion BCGC-1: A Phase Ib Dose Escalation and Phase II Dose Optimization, Randomized, Open-label, Multicenter Trial of Oral Zongertinib (BI 1810631) Alone or in Combination With Other Agents for the Treatment of Patients With Advanced HER2+ Metastatic Breast Cancer (mBC), Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma (mGEAC), or Metastatic Colorectal Cancer (mCRC)

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06324357
Enrollment
768
Registered
2024-03-21
Start date
2024-06-28
Completion date
2029-01-08
Last updated
2026-09-16

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

Conditions

Colorectal Cancer, Esophageal Adenocarcinoma, Gastroesophageal Junction Adenocarcinoma, Metastatic Breast Cancer, Metastatic Gastric Adenocarcinoma

Brief summary

This study is open to adults aged 18 years and older with different types of HER2+ cancer that has spread and cannot be removed by surgery. People can take part in this study if their tumours show HER2 aberrations and previous treatment was not successful. The purpose of this study is to find a suitable dose of zongertinib that people with different types of HER2+ cancer that has spread can tolerate best when taken together with trastuzumab deruxtecan (T-DXd), with trastuzumab emtansine (T-DM1), with trastuzumab and capecitabine, with zanidatamab, or with mFOLFOX6 (with or without trastuzumab). Another purpose is to check whether zongertinib alone and in combination with other treatments can make tumours shrink. Zongertinib inhibits HER2. HER2 causes cancer cells to grow. In this study, participants receive treatment in cycles. Study participants are treated with zongertinib alone or in combination with other treatments. This study has 2 parts. In Part 1, participants in different groups receive increasing doses of zongertinib. In Part 2, participants are put into different groups by chance. Each group receives a different dose of zongertinib. Every participant has an equal chance of being in each group. During the study, the participants visit the study site regularly. In this study, researchers want to find the highest dose of zongertinib that participants can tolerate when taken together with other treatments. To find this out, researchers look at certain severe health problems that a number of participants have. The doctors regularly check the size of the tumour with imaging methods (CT/MRI) during the study. The doctors also regularly check participants' health and take note of any unwanted effects.

Interventions

Zongertinib

DRUGTrastuzumab deruxtecan

Trastuzumab deruxtecan

DRUGTrastuzumab emtansine

Trastuzumab emtansine

DRUGTrastuzumab

Herceptin®

DRUGCapecitabine

Xeloda®

DRUGmFOLFOX6

mFOLFOX6

DRUGzanidatamab

zanidatamab

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients ≥18 years of age or over the legal age of consent in countries where that is greater than 18 years at the time of signature of the informed consent form (ICF) * Cohorts A to K and Cohort O: Documented Human epidermal growth factor receptor 2 overexpressing and/or amplified (HER2+), metastatic breast cancer (mBC) or metastatic gastric adenocarcinoma, gastroesophageal junction adenocarcinoma, or esophageal adenocarcinoma (mGEAC). * Cohorts L (L-ext), M, and N (metastatic colorectal cancer (mCRC)): Documented Human epidermal growth factor receptor 2 (HER2) overexpression/amplification according to American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) gastric cancer guidelines and according to the result of local testing. * For dose optimization and justification (Phase II): Patient must provide tumor tissue from locations not radiated prior to biopsy, if possible, collected through archival tissue * History of prior treatment lines in palliative setting: * For cohorts A, B, C, D, E, F, G, H, I, I-ext, J, J-ext, K and O documented investigator assessed progression after HER2-directed treatment for unresectable locally advanced or metastatic disease (For Cohorts D, H, I (I-ext), J (J-ext) - patients must have been pretreated with trastuzumab deruxtecan (T-DXd) and have progressed or have been intolerant to previous T-DXd). * For cohorts L, L-ext, M and N documented progression or recurrence of disease during or following their latest line of therapy. Patients must have had at least one prior line of therapy for locally advanced unresectable disease or metastatic disease (adjuvant and neoadjuvant therapy excluded) and documented disease progression or recurrence of disease during or following their latest line of therapy. In the opinion of the Investigator, patients must be unlikely to tolerate or derive clinically meaningful benefit from further standard of care therapy known to prolong survival. * Presence of at least one measurable lesion according to RECIST 1.1 * Eastern Cooperative Oncology Group (ECOG) score of 0 or 1 * Adequate organ function based on laboratory values Further inclusion criteria apply.

Exclusion criteria

* Previous treatment with: * Any small molecule HER2 inhibitor in the palliative setting in Cohorts D, E, F, H, L, L-ext, M, and N. In Cohort D allowed in up to 15 patients in each dose level (DL). * T-DXd in Cohorts E and F. In Cohort E allowed in up to 15 patients in each DL. * trastuzumab emtansine (T-DM1) in the palliative setting in Cohort D and H. In Cohort H allowed in up to 15 patients in each DL. * Capecitabine in Cohort D and H. In Cohort D allowed in up to 15 patients in each DL * Presence of uncontrolled and/or symptomatic brain metastases, or leptomeningeal disease * Mean resting corrected QT interval (QT interval corrected for heart rate by Fridericia´s formula (QTcF)) \>470 msec. * Any factors that increase the risk of QT interval corrected for heart rate (QTc) prolongation or risk of arrhythmic events such as heart failure, hypokalemia, congenital long QT syndrome, personal or family history of long QT syndrome or unexplained sudden death under 40 years-of-age. * Ejection fraction \<50% or the lower limit of normal of the institutional standard within 28 days prior to randomization * History of (non-infectious) interstitial lung disease (ILD)/pneumonitis that required steroids, current ILD/pneumonitis, or where suspected ILD/pneumonitis cannot be ruled out by imaging at screening Further

Design outcomes

Primary

MeasureTime frameDescription
Dose escalation (Phase Ib): Occurrence of dose-limiting toxicities (DLTs) in the maximum tolerated dose (MTD) evaluation periodup to 21 daysThe MTD evaluation period is defined as the first 21 days of the first treatment cycle for Cohorts A, B, C, G, K, and O. The MTD evaluation period is defined as the first 28 days after the first administration of any trial medication for Cohorts M and N.
Dose optimization and justification (Phase II): Objective response (OR)up to 50 monthsObjective response (OR) is defined as the best overall response of confirmed complete response (CR) or confirmed partial response (PR) according to RECIST 1.1 from the date of treatment start until the earliest date of disease progression, death, or last evaluable tumor assessment before start of subsequent anti-cancer therapy, or treatment discontinuation as assessed by investigator review.

Secondary

MeasureTime frameDescription
Dose escalation (Phase Ib): Objective response (OR)up to 50 months
Dose escalation (Phase Ib): Occurrence of dose-limiting toxicities (DLTs) during the entire treatment periodup to 50 months
Dose escalation (Phase Ib): Maximum measured concentration of zongertinib (at steady state) (Cmax,(ss))up to 2 daysFor cycle 2 only.
Dose escalation (Phase Ib): Area under the concentration-time curve of zongertinib over the time interval from 0 to 4h at steady state (AUC0-4h,ss)up to 2 daysFor cycle 2 only.
Dose escalation (Phase Ib): Area under the concentration-time curve of zongertinib over the time interval from 0 to the last quantifiable data point at steady state (AUC0-tz,ss)up to 2 daysFor cycle 2 only.
Dose optimization and justification (Phase II): Progression-free survival (PFS)up to 50 monthsPFS is defined as the time from treatment start until the earliest date of tumor progression according RECIST 1.1 based on investigator review or death from any cause, whichever occurs first.
Dose optimization and justification (Phase II): Disease control (DC)up to 50 monthsDC is defined as best overall response of complete response (CR) or partial response (PR) or stable disease (SD) where best overall response is defined according to RECIST 1.1 from first treatment administration until the earliest of disease progression, death, or last evaluable tumor assessment before start of subsequent anti-cancer therapy, or treatment discontinuation, as assessed by investigator review.
Dose optimization and justification (Phase II): Occurrence of treatment-emergent AEs leading to zongertinib (BI 1810631) dose reduction during the on-treatment periodup to 50 months
Dose optimization and justification (Phase II): Maximum measured concentration (at steady state) (Cmax,(ss))up to 50 months
Dose optimization and justification (Phase II): Area under the concentration-time curve over the time interval from 0 to the last quantifiable data point at steady state (AUC0-tz,ss)up to 50 months
Dose optimization and justification (Phase II): Patient-reported outcome (PRO) - PRO-CTCAEup to 24 weeksThe Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) item library was developed to elicit symptomatic toxicity information directly from patients in cancer clinical trials. The items selected for this trial are: Mouth/throat sores, Taste changes, Decreased appetite, Nausea, Vomiting, Constipation, Diarrhoea, Shortness of breath, Cough, Rash, Skin dryness, Hair loss, Itching, Numbness \& Tingling, Fatigue, Nosebleed, Headache. PRO-CTCAE responses are scored from 0 (=none) to 4 (=very severe) (or 0/1 for absent/present).
Dose optimization and justification (Phase II): Patient-reported outcome (PRO) - EORTC IL46up to 48 weeksThe EORTC IL46 is a single question that assesses bother (burden) of treatment. It is rated on a scale from 1 to 4, ranging from "not at all" to "very much".
Dose optimization and justification (Phase II): Patient-reported outcome (PRO) - EORTC IL19up to 48 weeksThe EORTC IL19 consists of five physical functioning scale items. It is rated on a scale from 1 to 4, ranging from "not at all" to "very much".

Countries

Belgium, China, France, Germany, Italy, Japan, South Korea, Spain, United Kingdom, United States

Contacts

CONTACTBoehringer Ingelheim
clintriage.rdg@boehringer-ingelheim.com1-800-243-0127

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 17, 2026