Clinical Trials & Pipeline

Clinical Trials & Pipeline

At Bayer, our focus is to discover and develop medicines that provide the opportunity to live a healthier life. We are actively pursuing our vision to deliver best-in-class patient care, outcomes, and experience by advancing science.

Information on investigational compounds and clinical trials sponsored by Bayer is made available here to increase the transparency of Bayer's clinical research. Below you can learn more about trials sponsored by Bayer. Research sponsored by independent investigators is not included.

Bayer's Clinical  
Trials Explorer

LEARN MORE

Bayer's Development  
Pipeline

LEARN MORE

Ongoing Trials

    Sunflower Icon

    (Study of Understanding NAEH - treatment eFficacy of LevonOrgestrel – IUS in Women Electing non-suRgical options)

    A phase 3 investigational study evaluating the efficacy and safety of 52mg levonorgestrel-releasing intrauterine system Mirena ® for the treatment of nonatypical endometrial hyperplasia (NAEH) in women.

    / Learn More On Bayer's Clinical Trial Explorer
    / Access Infographic On SUNFLOWER Trial


    Mirena is not indicated for the treatment of nonatypical endometrial hyperplasia. Please refer to the Mirena Prescribing Information for the full indication.

    Global icon

    STUDY DESIGN

    • Open Label, Randomized (2:1), Parallel Group, Multi-center Study
    • Study Duration: ~10 months with up to 5 visits to the study clinic/site

    Treatment Arms:

    • Experimental: Levonorgestrel
      – BAY865028, Mirena
    • Active Comparator: Oral progestin
      – Medroxyprogesterone acetate (oral tablet)

     

    STUDY POPULATION

    • N=207 (estimated) nulliparous and parous women (≥18 years of age) independent of their menopausal status at about 90 centers in 3 countries (United States, Canada, and China)
    Inclusion Criteria:
    • Post-menarchal women (≥18 years old) at the time of signing the informed consent
    • Women with histologically confirmed NAEH independent of their parity or menopausal status
    Exclusion Criteria:
    • Any diseases or conditions that might interfere with the conduct of the study or the interpretation of the results
    • Congenital or acquired uterine or cervical anomaly, including fibroids, or cervical stenosis that in the opinion of the investigator, would interfere with insertion and/or retention of the intrauterine system (ie, if they distort the uterine cavity)
    • Use of any long-acting injectable sex-hormone preparations within 6 months prior to the start of study intervention, and/or short-acting hormonal medication within 6 weeks prior to the start of study intervention
    • Pregnancy
    • Participants with either known family or personal history of genetic predisposition to uterine, ovarian, or colorectal cancers (eg, Lynch syndrome)

    OUTCOME MEASURES

    Primary Outcomes:
    • Proportion of participants with Complete Resolution (CR) of NAEH

      CR will be evaluated as benign endometrium

      Time Frame: At 6 months

    Secondary Outcomes:
    • Recurrence of NAEH after CR

      Recurrence of NAEH on 3 months treatment-free after CR at 6 months

      Time Frame: At 3 months follow-up after 6 months of treatment

    • Progression after CR

      Endometrial hyperplasia with atypia or endometrial cancer after 3 months treatment-free follow-up after CR at 6 months

      Time Frame: At 3 months follow-up after 6 months of treatment

    • Proportion of participants having hysterectomy

      Time Frame: During treatment and 3-month follow-up

    • Diagnosis of “benign endometrium”

      Time Frame: At 6 months of treatment followed by 3-month treatment-free follow-up

    • Number of participants with adverse events (AEs)

      All AEs will be coded using the latest version prior to database lock of the Medical Dictionary for Regulatory Activities

      Time Frame: From the signing of the informed consent form (ICF) up to 3 months after the last dose of study intervention

    NCT06904274

    Acronyms:

    AEs: Adverse Events

    CR: Complete Resolution

    ICF: Informed Consent Form

    IUD: Intrauterine Device

    NAEH: Nonatypical Endometrial Hyperplasia

    Ongoing Trials

      ESTeeM

      A study to learn more about how menopause affects women’s sleep and how they are being treated for sleep problems.

      / Learn More

      US icon

      STUDY DESIGN

      • Observational Study
      • Females 40 to 65 years with sleep disturbances and vasomotor symptoms (VMS)
      • Information will be collected on sleep patterns, night wakenings, use of therapies for sleep disturbances, and how sleep problems affect quality of life over a four-week period
      • Assessments will come from electronic health records (EHR), patient-reported outcomes (PRO), and smartwatches

      STUDY POPULATION

      • N = 1,000 (estimated)
      Inclusion Criteria:
      • Women experiencing menopause assigned female at birth, 40-65 years of age, residing in the United States 
        – Menopausal period is defined as ≥12 months of spontaneous amenorrhea prior to index date (the date informed consent was signed) or surgical bilateral oophorectomy with or without hysterectomy ≥6 weeks prior to index date
      • Sleep disturbances due to menopause, defined as self-reported disturbances characterized by waking up at night and/or poor quality of sleep (including difficulty falling asleep, short sleep, waking up early)
      • Signed informed consent form by the patient
      • Provided access to medical records, directly granting access through the HRS platform and the provider’s portal or providing contact information and a medical records release form
      Exclusion Criteria:
      • Menopause induced chemically or from radiation therapy (i.e., chemotherapy)
      • Medical conditions that impact sleep, including diagnosed chronic insomnia, sleep apnea, restless leg syndrome, circadian rhythm sleep disorder; current or history (except complete remission for 5 years or more) of any malignancy (except basal and squamous cell skin tumors)
      • Women self-reporting being under the care of a HCP for suicidal ideation, clinical anxiety, or clinical depression in the past six months
      • Participants in a clinical trial
      • Pregnant women

      OUTCOME MEASURES

      Primary Outcomes:
      • Number of awakenings in the night.

        Timeframe: From Day 1 to Day 28

      • Mean WASO (wakefulness after sleep onset).

        Total number of minutes that a participant is awake after having initially fallen asleep

        Timeframe: From Day 1 to Day 28

      • Mean number of moderate or severe hot flashes per night.

        Timeframe: From Day 1 to Day 28

      • Mean sleep efficiency score.

        Defined as the percentage of time spent asleep while in bed

        Timeframe: From Day 1 to Day 28

      • Mean length of time (in minutes) to fall asleep.

        Timeframe: From Day 1 to Day 28

      • Mean total sleep disturbance score (T-score) derived from PROMIS-SD-SF-8b.

        PROMIS-SD-SF-8B: Patient-reported Outcomes Measurement Information System Sleep disturbance short form 8b.

        Timeframe: Day 1, Day 14 and 
        Day 28

      • Menopause-specific quality-of-life questionnaire (MENQOL) total score.

        Measured by ePRO.

        Timeframe: Day 1, Day 14 and 
        Day 28

      • Insomnia Severity Index (ISI) total Score.

        Timeframe: Day 1, Day 14 and 
        Day 28

      • Socioeconomic status short-form questionnaire.

        Timeframe: Day 0

      Secondary Outcomes:
      • Descriptive analysis of demographics.

        Timeframe: Day 0

      • Descriptive analysis of clinical characteristics.

        Timeframe: Day 0

      • Lifestyle questionnaire.

        Questionnaire includes smoking history, alcohol consumption, caffeine consumption, other persons in the home and work schedule.

        Timeframe: Day 0

      • Comorbid conditions and dates of diagnosis from patient EHR (electronic health record).

        Timeframe: Day 0

      • Concomitant medications, from patient medication survey.

        Timeframe: Day 0

      • Body mass index (BMI).

        Timeframe: Day 0

      • Number of previous pregnancies from patient EHR.

        Timeframe: Day 0

      • Non-pharmacologic treatments for sleep disturbances.

        Timeframe: Day 0

      • Number of EHR (electronic health record) documented prescriptions for sleep disturbances.

        Timeframe: Retrospective analysis from 12 months prior to ICF

      • Number of patient-reported medications and supplements for sleep disturbances.

        Timeframe: From 6 months prior 
        Day 1

      • Number of patients reporting alternative treatment/management for sleep disturbances.

        Timeframe: Day 0

      • Questionnaire of satisfaction score for medications and supplements used to treat sleep disturbances.

        Timeframe: From 6 months prior 
        Day 1

      • Names of prescription and non-prescription medications and supplements for sleep disturbances reported in Daily Morning Diaries, including dosage.

        Timeframe: Day 1 to Day 28

      • List of types of treatment formerly prescribed for sleep disturbances, from patient medication survey.

        Timeframe: Day 0

      • Duration of treatments formerly prescribed for sleep disturbances, by drug class, from patient medication survey.

        Timeframe: Day 0

      • Proportion of days PRN medication used.

        Timeframe: From Day 1 to Day 28

      • Among medications for sleep disturbances discontinued within 6 months of enrollment, patient reported reason for discontinuation.

        Timeframe: Day 0

      • Mean HADS (Hospital Anxiety and Depression Scale) total score.

        Timeframe: Day 0

      NCT06728332

      Acronyms:

      BMI: Body mass index

      EHR: Electronic health record

      HADS: Hospital anxiety and depression scale

      ISI: Insomnia severity index

      MENQOL: Menopause-specific quality-of-life

      PRO: Patient-reported outcome

      PROMIS SD SF 8b: Patient-reported outcomes measurement information system sleep disturbance short form 8b

      WASO: Wakefulness after sleep onset