NCT02783456

Brief Summary

Epidemiological studies have found a link between aircraft noise exposure and increased incidence of arterial hypertension and thus cardiovascular disease. The underlying pathophysiological mechanisms are not yet fully understood. The kidney acts as a long-term regulator of blood pressure and controls the extracellular sodium and water balance. Significant renal mechanisms of blood pressure regulation are the renin angiotensin system, renal sympathetic activity and sodium excretion. Animal work and clinical studies show that mental stress affects the renal plasma flow and urinary sodium excretion. The investigators observed a lower sodium excretion in situations of mental stress in subjects at risk for developing arterial hypertension. In healthy volunteers, a 30-minute mental stress test resulted in increased glomerular filtration rate, filtration fraction and an increase in urinary sodium excretion. In this pilot study the investigators analyzed the influence of 30 minutes standardized aircraft noise on renal and central hemodynamics.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
86

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2016

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2016

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

April 27, 2016

Completed
29 days until next milestone

First Posted

Study publicly available on registry

May 26, 2016

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2018

Completed
Last Updated

February 26, 2018

Status Verified

February 1, 2018

Enrollment Period

1.8 years

First QC Date

April 27, 2016

Last Update Submit

February 22, 2018

Conditions

Keywords

renal hemodynamiccentral hemodynamicpilot studyflight noisehealthy participantrenal plasma flowfiltration fractionrenal vascular resistancecalculated intra glomerular pressure

Outcome Measures

Primary Outcomes (1)

  • change in renal plasma flow (l/min)

    through study completion, an average of 1 year

Study Arms (2)

Noise and silence

ACTIVE COMPARATOR

Exposition of 80dB flight noise for 30 minutes and 30 minutes silence.

Procedure: NoiseProcedure: Silence

silence and noise

ACTIVE COMPARATOR

Exposition of 30 minutes silence.and 80dB flight noise for 30 minutes

Procedure: NoiseProcedure: Silence

Interventions

NoisePROCEDURE

The patient is exposed 30 min to the first sound pattern and during the renal hemodynamics will be measured. The following is a 1-hour break.

Noise and silencesilence and noise
SilencePROCEDURE

The patient is exposed 30 min to the second sound pattern and during the renal hemodynamics will be measured.

Noise and silencesilence and noise

Eligibility Criteria

Age18 Years - 50 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Patients with mild-moderate arterial hypertension (grade 1-2)
  • Informed consent in writing available
  • Willing and able to comply with all requirements of the study
  • Male, between 18 and 50 years (inclusive)
  • Body Mass Index (BMI) 18-27 kg/m2
  • Non-smoker
  • Good general health as judged by the Investigator, as determined by medical history, physical examination, vital signs (systolic and diastolic blood pressure and pulse rate) and clinical laboratory parameters (clinical chemistry, hematology, and urinalysis).
  • Minor deviations of laboratory values, ECG, and vital sign parameters from the normal range may be accepted, if judged by the Investigator to have no clinical relevance.
  • \- uncomplicated arterial hypertension WHO grade 1-2, office blood pressure 140-179/90-109 mmHg

You may not qualify if:

  • Clinically significant abnormalities in physical examination, vital signs or clinical laboratory parameters (according to the Investigator's judgement).
  • S-GOT or S-GPT levels \> 2-times above the upper limit of normal range.
  • eGFR \< 60 ml/min/1,73m2 or kidney stones
  • Clinically significant history of cardiovascular disease or any known present cardiovascular disease.
  • History of clinically significant neurological, gastrointestinal, renal, hepatic, psychological, pulmonary, metabolic, endocrine, hematological, or other major disorders.
  • Office blood pressure at screening higher than 140/100 mmHg
  • Office heart rate at screening outside the range of 50-99 beats per minute (inclusive).
  • Clinically significant diseases (as judged by the investigator) within four weeks prior to screening
  • History of alcohol or drug abuse.
  • office blood pressure at screening visit \> 180/110 mmHg
  • secondary hypertension application of
  • of "other" medication
  • Clinically significant abnormalities in physical examination, vital signs or clinical laboratory parameters (according to the Investigator's judgement).
  • S-GOT or S-GPT levels \> 2-times above the upper limit of normal range.
  • eGFR \< 60 ml/min/1,73m2 or kidney stones
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Erlangen-Nuremberg

Erlangen, Bavaria, 91054, Germany

Location

Related Publications (2)

  • A. Jumar, C. Ott, J.M. Harazny, K. Striepe, M.V. Karg, R.E. Schmieder. NEW MODEL TO INVESTIGATE THE INFLUENCE OF AIRCRAFT NOISE IN THE PATHOPHYSIOLOGICAL CONCEPT OF HYPERTENSION J Hypertens 2017;35, e-Supplement 2:e214 PP.15.32

    RESULT
  • Bosch A, Rauh M, Striepe K, Schiffer M, Schmieder RE, Kannenkeril D. Renal adaptation in pre-obesity patients with hypertension. J Hypertens. 2024 Nov 1;42(11):1958-1965. doi: 10.1097/HJH.0000000000003821. Epub 2024 Jul 19.

MeSH Terms

Conditions

Hypertension

Interventions

NoiseSIR1 protein, S cerevisiae

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

SoundRadiation, NonionizingRadiationPhysical PhenomenaEnvironmentEcological and Environmental PhenomenaBiological PhenomenaEnvironment and Public HealthEnvironmental PollutionPublic Health

Study Officials

  • Roland E. Schmieder, Prof. Dr.

    University of Erlangen-Nürnberg Medical School

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
CARE PROVIDER
Purpose
DIAGNOSTIC
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 27, 2016

First Posted

May 26, 2016

Study Start

March 1, 2016

Primary Completion

January 1, 2018

Study Completion

January 1, 2018

Last Updated

February 26, 2018

Record last verified: 2018-02

Data Sharing

IPD Sharing
Will not share

Locations