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CompletedNCT07229404Updated Jan 27, 2026

A Study to Investigate Relative Bioavailability, Safety and Tolerability of Single- and Multiple-doses of Elinzanetant in Healthy Female Participants

A Phase 1 interventional study of Treatment A and Treatment B in Vasomotor Symptoms, sponsored by Bayer. Completed at 1 site in Canada. Open to female participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-01-27.

Sponsored by Bayer · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
18
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
Female
01

Study summary

The aim of this study is to examine the relative bioavailability of elinzanetant when administered in new oral formulations (treatment B and C) after both single and multiple oral doses, compared to its administration in soft gel capsule form (treatment A).

Study details include:

An ambulatory screening visit within 4 weeks prior to first treatment. Participants will be admitted to the ward on Day -1 of each period. On Day 1, either treatment B or treatment C will be administered fasted in the evening, followed by blood sampling for a 24-hour pharmacokinetic (PK) profile.

On Day 2, the multiple dosing starts 3 hours after a standardized dinner in the evening.

After the last dosing on Day 7, a complete PK profile for 24 hours will be collected.

If there are no medical objections, participants will be discharged from the study ward on Day 9 in the morning for a washout-out period of at least 10 days (240 hours after last dosing, after period 1 and 2) or, in period 3, after the follow-up examination.

The total duration of the study will be approximately 10 to 12 weeks for each participant.

02

Conditions studied

  • Vasomotor Symptoms
03

In context

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Female participant between 18 to 65 years of age (inclusive), at the time of signing the informed consent form (ICF).
  • Participant is overtly healthy as determined by the investigator (including assessment of medical history, physical examination, blood pressure (BP), pulse rate, 12-lead electrocardiogram (ECG), body temperature, and clinical laboratory).
  • Body weight of at least 50 kg and body mass index (BMI) above or equal to 18.0 and below or equal to 32.0 kg/m² at screening.
  • Signed informed consent as described in Section 10.1.3 which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.

Exclusion criteria

Exclusion Criteria

  • Diseases for which it can be assumed that the absorption, distribution, metabolism, elimination, and effects of the study intervention(s) will not be normal.
  • Known or suspected allergy or hypersensitivity to any study intervention (active substances or excipients of the preparations) to be used in the study - including e.g. non-investigational medicinal products, challenge agents, or rescue medication.
  • Febrile illness within 2 weeks before the start of the first study intervention.
  • History of clinically relevant seizures.
  • Alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), Bilirubin, or gamma-glutamyl transferase (GGT) > 1.2 x upper limit of normal (ULN).
  • Previous (within 30 days before first administration of study intervention) or concomitant participation in another clinical study with study intervention(s).
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
18 participants (actual)

Study arms

  • Experimental
    Sequence 1

    Treatments are administered in sequence of A-B-C

    Drug: Treatment A · Drug: Treatment B · Drug: Treatment C

  • Experimental
    Sequence 2

    Treatments are administered in sequence of A-C-B

    Drug: Treatment A · Drug: Treatment B · Drug: Treatment C

  • Experimental
    Sequence 3

    Treatments are administered in sequence of C-A-B

    Drug: Treatment A · Drug: Treatment B · Drug: Treatment C

  • Experimental
    Sequence 4

    Treatments are administered in sequence of C-B-A

    Drug: Treatment A · Drug: Treatment B · Drug: Treatment C

  • Experimental
    Sequence 5

    Treatments are administered in sequence of B-C-A

    Drug: Treatment A · Drug: Treatment B · Drug: Treatment C

  • Experimental
    Sequence 6

    Treatments are administered in sequence of B-A-C

    Drug: Treatment A · Drug: Treatment B · Drug: Treatment C

Interventions

  • DrugTreatment A

    Elinzanetant (BAY 3427080), dosage 1

  • DrugTreatment B

    Elinzanetant (BAY 3427080), dosage 2

  • DrugTreatment C

    Elinzanetant (BAY 3427080), dosage 3

06

What researchers measure

Primary outcomes

  1. AUC(0-24)md after multiple oral dosing 3 h after light dinner in the evening (treatments A, B, C)

    Time frame: From Day 0 to Day 8

  2. Cmax,md and Cmin,,md after multiple oral dosing 3 h after light dinner in the evening (treatments A, B, C)

    Time frame: From Day 0 to Day 8

Secondary outcomes

  1. AUC(0-24) after single dose in the evening under fasted condition (treatments A, B, C).

    Time frame: From Day 0 to Day 8

  2. Cmax after single dose in the evening under fasted condition (treatments A, B, C).

    Time frame: From Day 0 to Day 8

  3. Number and severity of treatment-emergent adverse events (TEAEs) after first study intervention until follow up

    Time frame: From first dosing up to Day 9

07

Study locations

1 site
  • Altasciences
    Mount Royal, Quebec H3P 3P1, Canada
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 Jan 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07229404
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Nov 17, 2025
Start date
Nov 5, 2025
Primary completion
Jan 14, 2026
Completion
Jan 14, 2026
Last update
Jan 27, 2026

Oversight

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

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This study is completed, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.

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