A Pharmacokinetic Study Comparing EG1206A and Perjeta (Pertzumab) in Healthy Male Volunteers

Inclusion Criteria:

* aged 18 to 55 years
* overtly healthy as determined by medical evaluation
* Body weight of at least 50 kg and not higher than 105 kg at screening
* BMI above/equal to 18.0 and below/equal to 30.0 kg/m2 at screening
* Male
* Agrees to the following during the treatment period and until 3 months after administration:
* Be and remain abstinent from heterosexual intercourse OR agree to use a male condom and female partners of childbearing potential must use an additional highly effective contraceptive method
* Abstain from donating sperm.
* Signed informed consent
* Valid COVID-19 immunization status as per current regulations

Exclusion Criteria:

* History or evidence of any clinically relevant disease, as judged by the investigator
* Any medical disorder, condition, or history of such that would impair the participant's ability to participate or complete this trial in the opinion of the investigator
* Pre-existing diseases for which it can be assumed that the absorption, distribution, metabolism, elimination, and effects of the IMP will not be normal
* Known or suspected hypersensitivity to the IMPs (active substances, or excipients of the preparations)
* Known severe allergies e.g., allergies to more than 3 allergens
* Relevant diseases within the last 4 weeks before IMP administration
* Febrile illness within 2 weeks before IMP administration.
* History of known or suspected malignant tumors
* Known or suspected disorder of the liver
* Use of systemic/topical medicines/substances which oppose the trial objectives, or which might influence them within 4 weeks before IMP administration
* Regular use of therapeutic or recreational drugs or supplements
* Use of any herbal products or St. John's wort from 4 weeks before IMP administration
* Prior treatment with pertuzumab
* Smoking
* History of alcohol or drug abuse
* Regular daily consumption of more than 500 mL of usual beer or the equivalent quantity of approximately 20 g of alcohol in another form
* Intake of alcohol containing food and beverages from 48 h prior to admission to the ward
* Regular daily consumption of more than 1 L of methylxanthine-containing beverages
* Excluded physical therapies that might alter the PK or safety results of the trial from 7 days before IMP administration until follow-up
* Strenuous physical exercise or sauna visit with 72 h before admission to the ward
* Donation of more than 100 mL of whole blood or plasma within 4 weeks or approximately 500 mL whole blood within 3 months before IMP administration
* Plasmapheresis within 3 months before IMP administration
* Previous or concomitant participation in another clinical trial with IMP(s)
* Clinically relevant findings in the ECG
* LVEF below 55%
* Systolic blood pressure below 100 mmHg or above 140 mmHg
* Diastolic blood pressure below 50 mmHg or above 90 mmHg
* Heart rate below 50 beats/ min or above 90 beats/min
* Clinically relevant findings in the physical examination that may affect the objectives of the trial, or the safety of the participant
* Poor venous access
* Clinically relevant deviations of the screened safety laboratory parameters
* Alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, gamma glutamyl transpeptidase, or total bilirubin above 1.2 upper limit of normal
* Thyroid disorders as evidenced by assessment of thyroid stimulating hormone (TSH) level outside the normal reference range
* Positive results for hepatitis B virus surface antigen, hepatitis C virus antibodies, human immune deficiency virus antibodies, and human immune deficiency virus antigen
* Positive urine drug test
* Positive alcohol test
* Positive cotinine test
* Any criteria which, in the opinion of the investigator, preclude participation for scientific reasons, for reasons of compliance, or for reasons of the participant's safety
* Close affiliation with the investigational site
* Vulnerable participants who are e.g., institutionalized due to regulatory or juridical order dependent on sponsor, site, or investigator or not able to consent, respectively.
* History of COVID-19 within 2 months prior to screening
* Long COVID-19 syndrome or other clinically relevant COVID-19 related symptoms or sequelae
* Positive SARS-CoV-2 viral ribonucleic acid (RNA) test at admission
* No SARS-CoV-2 vaccinations should be booked within 14 days before IMP administration and until last trial visit.