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CompletedNCT05938517PK-BesTUpdated Jul 12, 2023

Pharmacokinetic Profile of Betahistine With and Without Selegiline in Healthy Volunteers

A Phase 1 interventional study of Betahistine dihydrochloride and Selegiline-hydrochloride in Ménière's Disease, sponsored by Ludwig-Maximilians - University of Munich. Completed at 1 site in Germany. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-07-12.

Sponsored by Ludwig-Maximilians - University of Munich · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years after the study started (first participant enrolled Jun 2021, registered Jun 2023).
Phase
Phase 1
Study type
Interventional
Enrollment
15
Allocation
Non-randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The goal of this pharmakokinetic trial is to demonstrate that Betahistine serum concentration is higher after combination treatment with Betahistine and Selegiline compared to Betahistine alone.

The main questions it aims to answer are:

Is the plasma concentration of betahistine higher due to combination treatment with selegiline compared to betahistine monotherapy? How is the safety of the combination treatment with betahistine and selegiline, the pharmacokinetics of betahistine in different dosages in blood, and the inter-individual differences in the metabolism?

Subjects satisfying all selection criteria will receive three different dosages of Betahistine alone orally in ascending order (24 mg, 48 mg, 96 mg) in the first period. In the second period, subjects received Betahistine treatment as described for first period but after pre- and continuous treatment with 5 mg/ml Selegiline orally. Plasma concentration (namely the AUC0-240min) of betahistine will be measured before and 10, 30, 60, 90, 120, 180, 240 minutes after treatment with blood examinations. Safety parameters include assessment of adverse events, ECG, vital signs, laboratory measurements including kidney and liver function, full blood count and pregnancy and drug screening test.

Read the detailed description

This study was an investigator-initiated (IIT) prospective mono-center open-labeled trial to demonstrate that Betahistine serum concentration is higher after combination treatment with Betahistine and Selegiline compared to Betahistine alone in healthy subjects.

Subjects were screened for their eligibility to participate in the study. Each subject gave written informed consent before any study-related procedures were performed.

Subjects satisfying all selection criteria were included in the open-labeled trial receiving 3 different dosages of Betahistine alone in ascending order (24 mg, 48 mg, 96 mg) in the first period. In the second period, subjects received Betahistine treatment as described for first period but after pre- and continuous treatment with 5 mg/ml Selegiline. Betahistine serum concentrations were measured over a period of 240 min at 8 time points (area under the curve, AUC0-240 min). Safety parameters included assessment of adverse events, ECG, vital signs, laboratory measurements including kidney and liver function, full blood count and pregnancy and drug screening test). Safety monitoring was conducted during every visit and assessment of vital parameter and adverse events were conducted 10, 30, 60, 90, 120, 180, and 240min after betahistine intake. The clinical trial was conducted in a hospital of maximum care with the possibility to consult a specialist for possible symptoms of an intoxication especially an anesthesiologist, cardiologist and neurologist 24 hours/7 days a week.

02

Conditions studied

  • Ménière's Disease

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Keywords

  • Betahistine-dihydrochloride
  • Selegiline-hydrochloride
  • MAO-B inhibitor
03

In context

Meniere Disease

73 studies on the registry are indexed under Meniere Disease; 14 are open to participants now.

This study's enrollment of 15 is below the median of 49 across 62 interventional studies indexed under Meniere Disease.

Browse Meniere Disease studies →

Lead sponsor

Ludwig-Maximilians - University of Munich is the lead sponsor of 218 studies on the registry; 29 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Diagnosis and main criteria for inclusion:

  • Adult healthy volunteers, males and non-pregnant, non-breastfeeding woman with adequate contraception
  • Subjects must meet all of the following inclusion criteria to be eligible for enrolment into the trial:
  • Healthy volunteers (age ≥ 18 years and ≤ 70 years) as determined by screening
  • and Principal Investigator's judgement
  • No intake of medication due to an illness
  • Written informed consent of the subject
  • Systolic blood pressure between 90 and 140 mmHg and diastolic blood pressure between 60 and 90 mmHg at screening
  • PQ interval in the ECG between 0.12 s and 0.20 s
  • Duration of the QRS complex between 0.06 s and 0.10 s
  • QTc interval 440 ms or less
  • Heart rate between 60 and 100 beats per minute
  • Subjects with the ability to follow study instructions and likely to attend and complete all required visits

Subjects presenting with any of the following exclusion criteria were not included in the trial:

  • Subject is not able to give consent
  • A condition in which repeated serum draws or injections pose more than minimal risk for the subjects, such as haemophilia, other severe coagulation disorders or significantly impaired venous access
  • Participation in another study with an investigational drug or device within the last 30 days, prior participation in the present study, or planned participation in another trial
  • Intake of medication due to an illness
  • Subjects with a physical or psychiatric condition which at the investigator's discretion may put the subject at risk, may confound the trial results, or may interfere with the subject's participation in the clinical trial before participation in this study
  • Current or planned pregnancy or breastfeeding woman
  • Woman of childbearing potential who is not willing to use medically reliable methods of contraception for the entire study duration
  • Intake of alcohol 24 hours before first IMP intake or during study participation
  • Known or persistent abuse of medication, drugs or alcohol (positive test for alcohol or drugs)
  • Known contraindications for Betahistine, such as bronchial asthma, pheochromocytoma, treatment with antihistaminic drugs, ulcer of the stomach or duodenum, severe dysfunction of liver or kidney, hypersensitivity to Betahistine or other ingredients
  • Known contraindications for Selegiline, e.g. use of opioids, tricyclic antidepressants, sympathomimetics, non-selective MAOIs, (selective) serotonin (-noradrenaline) re-uptake inhibitors (SSRI/SNRI), serotonin agonists, hypersensitivity to Selegiline or other ingredients
  • Hereditary intolerance to galactose, hereditary deficiency of lactose, glucose-galactose-malabsorption
  • AV Block in the ECG
  • Hypotonic or hypertonic subjects according to the criteria of the National Heart, Lung and Serum Institute (Hypertension > 90/140 mmHg, Hypotension \< 90/60 mmHg)
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    Betahistine-dihydrochloride

    Subjects received single dosages of Betahistine (24 mg, 48 mg, 96 mg) orally for pharmacokinetic serum draw with at least two days between the different dosages.

    Drug: Betahistine dihydrochloride

  • Experimental
    Betahistine-dihydrochloride and Selegiline-hydrochloride

    Subjects were pre-treated with Selegiline (5 mg/day) orally for one week and treated continuously with Selegiline (5 mg/day) in combination with the single dosages of Betahistine (24 mg, 48 mg, 96 mg) orally with at least two days between the different dosages.

    Drug: Betahistine dihydrochloride · Drug: Selegiline-hydrochloride

Interventions

  • DrugBetahistine dihydrochloride

    Each subject received single dosages of Betahistine (24 mg, 48 mg, 96 mg) for pharmacokinetic serum draw with at least two days between the different dosages.

    Also known as: Vasomotal

  • DrugSelegiline-hydrochloride

    In the second period, each subject was pre-treated with Selegiline (5 mg/day) for one week and treated continuously with Selegiline (5 mg/day) in combination with the single dosages of Betahistine (24 mg, 48 mg, 96 mg) with at least two days between the different dosages.

    Also known as: Selegiline-neuraxpharm

06

What researchers measure

Primary outcomes

  1. Mean AUC of Betahistine

    Mean AUC of Betahistine in serum after treatment of Betahistine alone or with Selegiline

    Time frame: 240 minutes

Secondary outcomes

  1. Mean Half Life of Betahistine

    Half Life of Betahistine following the administration of different Betahistine doses with and without Selegiline

    Time frame: 240 minutes

  2. Occurrence of adverse effects

    Occurrence of adverse effects following the administration of different Betahistine doses with and without Selegiline

    Time frame: up to 8 weeks

07

Study locations

1 site
  • Department of Neurology, Ludwig Maximilian University
    Munich, Bavaria 81377, Germany
08

References and documents

Individual participant data

Plan to share: No

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 Jul 12, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05938517
Lead sponsor
Ludwig-Maximilians - University of Munich
Responsible party
Prof. Dr. med. Michael Strupp (Senior physician, Ludwig-Maximilians - University of Munich) — Principal investigator
First posted
Jul 10, 2023
Start date
Jun 2, 2021
Primary completion
Oct 14, 2021
Completion
Oct 14, 2021
Last update
Jul 12, 2023

Study contacts

Michael Strupp, M.D.
principal investigator · LMU Munich

Oversight

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

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