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CompletedNCT06562985Updated Feb 6, 2025

A Study to Learn About How Safe BAY3018250 is and What Happens to it in Healthy Japanese Men and Adult Participants Aged 18 to 55 Years

A Phase 1 interventional study of BAY3018250 Dose 1 and Placebo in Acute Venous and Arterial Thrombotic and Thromboembolic Events and Healthy Volunteers, sponsored by Bayer. Completed at 1 site in United States. Open to male participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-06.

Sponsored by Bayer · Phase 1, Interventional, and Other

From the registry’s dates

  • Primary completion was Jan 2025, 1 year 9 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
39
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
Male
01

Study summary

Researchers are looking for a better way to treat people who have acute venous and arterial thrombotic and thromboembolic events. These are severe medical problems due to blood clots forming in and blocking blood vessels.

The study treatment BAY3018250 is under development to treat acute venous and arterial thrombotic and thromboembolic events. It aims to work by dissolving blood clots in the blood vessels.

In this study, participants will be healthy and will not benefit from receiving BAY3018250. However, the study will provide information on how to test BAY3018250 in future studies in people with acute venous and arterial thrombotic and thromboembolic events.

During the study, researchers will use two different methods of giving BAY3018250 to participants. This may help in developing a faster method of giving this treatment in case of emergencies.

The main purpose of this study is to check how safe BAY3018250 is and if it is well tolerated by participants. For this, researchers will study the number and severity of medical problems in:

  • healthy Japanese men after receiving different doses of BAY3018250 as an infusion into a vein.
  • healthy adult participants after receiving a certain dose of BAY3018250 by an injection.

These medical problems are also known as "adverse events". Doctors keep track of all medical problems that happen in studies, even if they do not think they might be related to the study treatment.

This study will have two parts: Part A and Part B:

- Only healthy Japanese men can join Part A of the study, which will have two groups. In the first group, participants will receive a low dose of BAY3018250. If researchers consider this dose to be safe, the next group will receive a higher dose.

In each group, participants will be randomly assigned to receive BAY3018250 or placebo as an infusion into a vein once during the study. A placebo looks like a study drug but does not have any medicine in it.

- Healthy men and women can join Part B of the study. Participants will be randomly assigned to receive a certain dose of BAY3018250 or placebo by an injection once during the study.

Each participant will be in the study for around 14 weeks, which includes:

  • a visit to the hospital within 3 weeks of taking any treatment to confirm if the participant can take part in the study
  • a hospital stay of 1 week, during which participants will receive their assigned treatment, have blood and urine tests and complete health check-ups
  • six follow-up visits to the hospital until about 11 weeks after receiving the study treatments During the study, the doctors and their study team will check participants' health by performing tests such as blood and urine tests, and checking heart health using an electrocardiogram (ECG) As this study is conducted in healthy participants who will not benefit from the treatment, access to the treatment after the study is not planned.
02

Conditions studied

  • Acute Venous and Arterial Thrombotic and Thromboembolic Events
  • Healthy Volunteers

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03

In context

Thromboembolism

818 studies on the registry are indexed under Thromboembolism; 95 are open to participants now.

This study's enrollment of 39 is below the median of 194 across 436 interventional studies indexed under Thromboembolism.

Browse Thromboembolism studies →

Lead sponsor

Bayer is the lead sponsor of 1,674 studies on the registry; 54 are open to participants now.

Of its 213 completed or terminated interventional studies of FDA-regulated products, 130 (61%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
Male
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria:

Inclusion:

Part A:

  • Participant must be 18 to 55 years of age inclusive, at the time of signing the informed consent.
  • Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, safety laboratory tests, vital signs, and electrocardiogram (ECG).
  • Japanese who was born in Japan and whose parents and grandparents must have been Japanese and who has not lived outside of Japan for more than 10 years and has not significantly modified their diets since leaving Japan.
  • Male

Part B:

  • Participant must be 18 to 55 years of age inclusive, at the time of signing the informed consent.
  • Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, safety laboratory tests, vital signs, and ECG.
  • Male or female (postmenopausal or hysterectomized only)

Exclusion Criteria:

  • Medical disorder, condition (e.g., after surgical procedure), or history of such that would impair the participant's ability to take part in or complete this study in the opinion of the investigator. This includes family history indicating hereditary predisposition of relevant diseases and history of non- persisting diseases with possible impact on study participation.
  • Increased bleeding risk: known coagulation disorders (e.g., von Willebrand´s disease, hemophilia), periodontitis, symptomatic hemorrhoids, acute gastritis, peptic ulcer, or similar diseases with tendency to lead to bleedings, known sensitivity to common causes of bleeding (e.g., nasal, etc.), or history of hemorrhage and gastrointestinal ulceration within 6 months prior to the screening visit.
  • Family history of hereditary or not explainable bleeding disorders.
  • History of thrombosis or family history of hereditary or not explainable diseases with increased risk for thrombosis or thromboembolic events.
  • Tendency of easy bruising.
  • Platelets out of reference range.
  • Activated partial thromboplastin time (aPTT) or prothrombin time (PT) out of reference range.
05

Study design

Phase
Phase 1
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
39 participants (actual)

Study arms

  • Experimental
    Dose step 1 (Part A)

    Participants will receive a single dose of BAY3018250 dose step 1 via infusion in part A.

    Drug: BAY3018250 Dose 1

  • Experimental
    Dose step 2 (Part A)

    Participants will receive a single dose of BAY3018250 dose step 2 via infusion in part A.

    Drug: BAY3018250 Dose 2 infusion

  • Placebo comparator
    Placebo (Part A)

    Participants will receive a single dose of BAY3018250 matching placebo via infusion in part A.

    Drug: Placebo

  • Experimental
    Dose step 2 (Part B)

    Participants will receive a single dose of BAY3018250 dose step 2 via injection in part B.

    Drug: BAY3018250 Dose 2 injection

  • Placebo comparator
    Placebo (Part B)

    Participants will receive a single dose of BAY3018250 matching placebo via injection in part B.

    Drug: Placebo

Interventions

06

What researchers measure

Primary outcomes

  1. Number of participants who experienced treatment-emergent adverse events (TEAEs) after administration of BAY3018250

    Time frame: Administration of study intervention until last follow-up visit (75 days)

Secondary outcomes

  1. Cmax of BAY3018250

    Time frame: Administration of study intervention until Day 75

  2. AUC of BAY3018250

    If AUC cannot be determined reliably in all participants, AUC(0-tlast) will be used instead.

    Time frame: Administration of study intervention until Day 75

07

Study locations

1 site
  • Collaborative Neuroscience Research, LLC
    Los Alamitos, California 90720, United States
08

References and documents

Individual participant data

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.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 6, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06562985
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Aug 20, 2024
Start date
Sep 18, 2024
Primary completion
Jan 6, 2025
Completion
Jan 6, 2025
Last update
Feb 6, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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