Researchers are looking for a better way to treat men who have advanced non-small cell lung cancer (NSCLC). NSCLC is a group of lung cancers that have spread to nearby tissues or to other parts of the body.

Epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) are proteins that help cells to grow and divide. A damage (also called mutation) to the building plans (genes) for these proteins in cancer cells leads to a production of abnormal EGFR and/or HER2. These abnormal proteins drive the growth and the spread of the cancer. Several EGFR and/or HER2 mutations exist in the cancer cells. The study treatment works by blocking the mutated EGFR and HER2 protein present in NSCLC cells and may help stop the further spread of NSCLC.

BAY2927088 is under development, once it is approved, it may help treat people with NSCLC.

The participants of this study will be healthy men and will have no benefit from the administration of BAY2927088. However, the study will provide important information for the design of subsequent studies with BAY2927088 in people with NSCLC.

The participants in this study will get the non-radiolabeled and radio-labeled study treatment BAY2927088 in the form of tablets and solution by mouth and as an intravenous infusion in the arm. By radiolabeling the study treatment, researchers can track its movement and breakdown in the body of the participants. During the study, the study team will do physical examinations, take medical history, ask the participants questions about their smoking or alcohol consumption habits and other medications used, check vital signs such as blood pressure, heart rate, body temperature and the number of breaths taken per minute (respiratory rate), take blood and urine samples, do HIV (human immunodeficiency virus), hepatitis and optional COVID-19 tests per local regulations, and examine heart health using electrocardiogram (ECG).

Each study participant will go through a first test phase (screening) of up to 28 days before the start of treatment. The study will have two parts. In part 1, the study participants will take a single dose of the non-radiolabeled study treatment in the form of tablets by mouth 30 minutes following a light meal. They will then receive the radiolabeled study treatment as an intravenous infusion in the arm over 15 minutes. After 2 days of washout, the same group of participants will move on to Part 2 of the study. They will take a single dose of the radio-labeled study treatment as a solution by mouth 30 minutes after a light meal. The participants and the study team know what treatment the participants will take. The total duration of the study will be approximately 8 weeks per participant, including an in house stay of approximately 23 days and 22 nights. There will be a final examination on the last day of their in-house stay before the participants are discharged and go home.

The study doctors and their team will contact the participant to learn about the participant's health until the participant completes the study.

Inclusion Criteria:

• Capable of giving signed informed consent
• Participant must be 18 or age of legal maturity to 55 years of age inclusive, at the time of signing the informed consent
• Participants who are overtly healthy as determined by the investigator or medically qualified designee based on medical evaluation including medical history, laboratory tests, physical, cardiac, and neurologic examination
• Body mass index (BMI) within the range [18 - 30] kg/m^2 (inclusive), with bodyweight above/equal to 50 kg
• Male
• Study participants of reproductive potential must agree to use adequate contraception when sexually active during the study period and for at least 3 months after the last dose of study intervention, and refrain from donating sperm during this period
• Participant must have venous access sufficient to allow blood sampling as required by the protocol
• Participant must be willing to undergo multiple blood draws as required by the protocol
• Participant must be willing to comply with dietary and fluid requirements during the treatment period (including abstaining from alcohol use)
• Ability to understand and follow study-related instructions

Exclusion Criteria:

• Existing relevant diseases of vital organs (e.g., liver diseases, heart diseases, gastrointestinal diseases, interstitial lung disease), central nervous system (for example seizures) or other organs (e.g., diabetes mellitus)
• Incompletely cured pre-existing diseases for which it can be assumed that the absorption, distribution, metabolism, elimination, and effects of the study intervention will not be normal
• Any relevant diseases within 4 weeks prior to the first study intervention administration as judged by the investigator
• A medical history of risk factors for Torsades de pointes (e.g., family history of long QT syndrome) or other clinically significant arrhythmias as judged by the investigator
• Known history of hypersensitivity (or known allergic reaction) to BAY2927088-related compounds, or any components of the formulation
• History of known or suspected malignant tumors
• Participants with any type of psychiatric disorder, especially any mood disorders including medical history with suicidal ideation and/or suicide attempts, which may disable the participant to consent
• Any condition which may result in longer than usual retention of urine or feces in the body, such as pronounced (less than one defecation in 3 days) constipation or symptomatic prostatic hypertrophy
• Exposure to radiation for diagnostic reasons (except dental X-rays and plain X-rays of thorax and bony skeleton [excluding spinal column]), during work or during participation in a clinical study in the period of 1 year prior to screening
• Participant will be excluded when he participated in another study with a radiation burden of 0.1 - 1 mSv (inclusive) in the period of 1 year prior to screening; 1.1 - 2 mSv (inclusive) in the period of 2 years prior to screening; 2.1 - 3 mSv (inclusive) in the period of 3 years prior to screening, etc. (add 1 year per 1 mSv)

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.