ClinicalTrials.gg
CompletedNCT03310645Updated Jan 26, 2023

Repeat Doses of BAY 1817080 in Healthy Males & Proof of Concept in Chronic Cough Patients

A Phase 1/2 interventional study of BAY1817080 and Matching Placebo in Cough, sponsored by Bayer. Completed at 7 sites in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-01-26.

Primary conditionChronic CoughRegistry: CoughReclassifiedWhy we changed it
Registry
Cough — the first condition term the registry derived for this study.
ClinicalTrials.gg
Chronic Cough
Why
  1. The study's title name Chronic Cough, a narrower term within Cough.
Confidence
High: the new condition is named in the study's own title. Of 46 hand-checked studies reclassified this way, 72% were exactly right and 89% in the right disease family; the registry's first term was right for 4% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Bayer · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
87
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

To investigate the safety and tolerability of ascending repeated oral doses of BAY1817080 in healthy volunteers(Part1).

To investigate the safety, tolerability and efficacy of BAY1817080 in patients with refractory chronic cough(Part2).

02

Conditions studied

  • Cough

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Keywords

  • Refractory chronic cough
  • healthy volunteers
03

In context

Chronic Cough Reclassified

142 studies on the registry are indexed under Chronic Cough; 39 are open to participants now.

This study's enrollment of 87 is above the median of 60 across 104 interventional studies indexed under Chronic Cough.

Browse Chronic Cough studies →

Lead sponsor

Bayer is the lead sponsor of 1,674 studies on the registry; 51 are open to participants now.

Of its 214 completed or terminated interventional studies of FDA-regulated products, 132 (62%) have results posted.

Compared within Chronic Cough, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Cough. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Part 1

  • Male; healthy according to complete medical history, including the physical examination, vital signs (blood pressure, pulse rate), 12 lead , clinical laboratory tests
  • Age: 18-45 years (inclusive) at the first screening visit.
  • Non-smoker for at least the past 6 months and with a pack year history of equal to or less than 5 years.
  • Subjects who are sexually active and have not been surgically sterilized must agree to use two reliable and acceptable methods of simultaneously when having sexual intercourse with women of (one method used by the subject and one method used by the partner) during the study and for 90 days after receiving the medicinal product and not to act as sperm donor for 90 days after dosing. [Acceptable methods of contraception include for example: (a) condoms (male or female) with or without a spermicidal agent, (b) diaphragm or cervical cap with spermicide, (c) intrauterine device, (d) hormone-based contraception.

Part 2:

  • Age: >18 years at the first screening visit
  • chronic cough for at least one year:

    • that has been shown to be unresponsive to at least 8 weeks of targeted treatment for identified underlying triggers including reflux disease, asthma and post-nasal drip or unexplained cough, and
    • for which no objective evidence of an underlying trigger can be determined after investigation.
  • Score of >40 mm on the Cough Severity visual analogue scale (VAS) at screening.
  • For male patients:

Male patients who are sexually active and have not been surgically sterilized must agree to use two reliable and acceptable methods of contraception simultaneously (one method used by the study patient and one method used by the partner) during the study and for 90 days after receiving the investigational medicinal product and not to act as sperm donor for 90 days after dosing. [Acceptable methods of contraception include for example: (a) condoms (male or female) with or without a spermicidal agent, (b) diaphragm or cervical cap with spermicide, (c) intrauterine device, (d) hormone-based contraception.

--For female patients: Confirmed woman (defined as exhibiting spontaneous amenorrhea for at least 12 months before screening or as exhibiting spontaneous amenorrhea for 6 months before screening with documented serum follicle-stimulating hormone (FSH) levels > 40 mIU/mL) or Woman without childbearing potential based on surgical treatment at least 6 weeks before screening such as bilateral tubal ligation, bilateral oophorectomy with or without hysterectomy (documented by medical report verification) or Woman of childbearing potential that agrees to use two reliable and acceptable methods of contraception simultaneously (one method used by the study patient and one method used by the partner) during the study and for at least 10 days after the last dose. Acceptable methods of contraception include for example: (a)condoms (male or female) with or without a spermicidal agent (b)diaphragm or cervical cap with spermicide (c) intrauterine device (d)hormone-based contraception.

Exclusion criteria

Exclusion Criteria:

Part 1

  • Relevant diseases potentially interfering with the study's aims (e.g.respiratory diseases) within the four weeks before screening or between screening and randomization
  • Any febrile illness within the four weeks before screening or between screening and randomization
  • Medical history of hypogeusia/dysgeusia or the subject has a dysfunction in his/her ability to taste, as revealed by the taste disturbance questionnaire during screening and the pre dose procedures
  • Use of any over-the-counter cough mixture within the 24 hours before screening

Part 2:

  • or FVC of less than 60% of predicted normal, at screening
  • History of upper or lower respiratory tract infection or recent significant change in pulmonary status within the 4 weeks before baseline visit.
  • Current smoking habit or history of smoking within the 6 months before the screening visit.
  • History of smoking (at any time) for more than 20 pack-years in total (20 cigarettes per pack)
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
87 participants (actual)

Study arms

  • Experimental
    Dose 1 of BAY1817080

    Study Part 1: Oral dose 1 of BAY1817080 twice daily with a loading dose administered three times on Day 1

    Drug: BAY1817080

  • Experimental
    Dose 2 of BAY1817080

    Study Part 1: Oral dose 2 of BAY1817080 twice daily with a loading dose administered three times on Day 1

    Drug: BAY1817080

  • Experimental
    Dose 3 of BAY1817080

    Study Part 1: Oral dose 3 of BAY1817080 twice daily with a loading dose administered three times on Day 1

    Drug: BAY1817080

  • Experimental
    Dose 4 of BAY1817080

    Study Part 1: Oral dose 4 of BAY1817080 twice daily with a loading dose administered three times on Day 1

    Drug: BAY1817080

  • Placebo comparator
    Placebo

    Study Part 1: Oral dose of matching placebo twice daily with a loading dose administered three times on Day 1

    Drug: Matching Placebo

  • Experimental
    Placebo+BAY1817080

    Study Part 2: Randomized crossover design in cough patients Placebo+4 different doses of BAY1817080

    Drug: BAY1817080 · Drug: Matching Placebo

  • Experimental
    BAY1817080+Placebo

    Study Part 2: Randomized crossover design in cough patients 4 different doses of BAY1817080+Placebo

    Drug: BAY1817080 · Drug: Matching Placebo

Interventions

  • 4 different doses over the course of study

  • DrugMatching Placebo

    Matching placebo for BAY1817080

06

What researchers measure

Primary outcomes

  1. Frequency of treatment emergent adverse events in study part 1

    Time frame: Up to 5 weeks

  2. Severity of treatment emergent adverse events in study 1

    The intensity of an AE is classified according to the following categories: * Mild: A type of adverse event that is usually transient and may require only minimal treatment or therapeutic intervention. The event does not generally interfere with usual activities of daily living. * Moderate: A type of adverse event that is usually alleviated with additional specific therapeutic intervention. The event interferes with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the research participant. * Severe: A type of adverse event that requires intensive therapeutic intervention. The event interrupts usual activities of daily living, or significantly affects clinical status

    Time frame: Up to 5 weeks

  3. Frequency of treatment emergent adverse events in study part 2

    Time frame: Up to 12 weeks

  4. Severity of treatment emergent adverse events in study part 2

    The intensity of an AE is classified according to the following categories: * Mild: A type of adverse event that is usually transient and may require only minimal treatment or therapeutic intervention. The event does not generally interfere with usual activities of daily living. * Moderate: A type of adverse event that is usually alleviated with additional specific therapeutic intervention. The event interferes with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the research participant. * Severe: A type of adverse event that requires intensive therapeutic intervention. The event interrupts usual activities of daily living, or significantly affects clinical status

    Time frame: Up to 12 weeks

  5. 24-hour cough counts

    Time frame: At week 1 in period A

  6. 24 hour cough counts

    Time frame: At week 2 in period A

  7. 24 hour cough counts

    Time frame: At week 3 in period A

  8. 24 hour cough counts

    Time frame: At week 1 in period B

  9. 24 hour cough counts

    Time frame: At week 2 in period B

  10. 24 hour cough counts

    Time frame: At week 3 in period B

07

Study locations

7 sites
  • North Tyneside General Hospital
    North Shields, Tyne And Wear NE29 8NH, United Kingdom
  • Birmingham Heartlands Hospital
    Birmingham, West Midlands B9 5SS, United Kingdom
  • Queen's University
    Belfast, BT9 7AB, United Kingdom
  • Castle Hill Hospital
    Cottingham, HU16 5JQ, United Kingdom
  • King's College Hospital - NHS Foundation Trust
    London, SE5 9RS, United Kingdom
  • University Hospital of South Manchester
    Manchester, M23 9LT, United Kingdom
  • Medicines Evaluation Unit
    Manchester, M23 9QZ, United Kingdom
08

References and documents

Publications

  • Friedrich C, Francke K, Gashaw I, Scheerans C, Klein S, Fels L, Smith JA, Hummel T, Morice A. Safety, Pharmacodynamics, and Pharmacokinetics of P2X3 Receptor Antagonist Eliapixant (BAY 1817080) in Healthy Subjects: Double-Blind Randomized Study. Clin Pharmacokinet. 2022 Aug;61(8):1143-1156. doi: 10.1007/s40262-022-01126-1. Epub 2022 May 28. PubMed 35624408 ↗
  • Morice A, Smith JA, McGarvey L, Birring SS, Parker SM, Turner A, Hummel T, Gashaw I, Fels L, Klein S, Francke K, Friedrich C. Eliapixant (BAY 1817080), a P2X3 receptor antagonist, in refractory chronic cough: a randomised, placebo-controlled, crossover phase 2a study. Eur Respir J. 2021 Nov 18;58(5):2004240. doi: 10.1183/13993003.04240-2020. Print 2021 Nov. PubMed 33986030 ↗

Individual participant data

Plan to share: No — There are no current plans to share data. 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.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Dec 2017 to primary completion in May 2019, 17 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 28, 2017
First posted
Oct 16, 2017
StartActual
Dec 7, 2017
Primary completionActual
May 28, 2019
CompletionActual
Jun 19, 2019
Last update
Jan 26, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03310645
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Oct 16, 2017
Start date
Dec 7, 2017
Primary completion
May 28, 2019
Completion
Jun 19, 2019
Last update
Jan 26, 2023

Study contacts

Bayer Study Director
study director · Bayer

Oversight

Data monitoring committee
No
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 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Eliapixant

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