Effect of the Aquaretic Tolvaptan on Nitric Oxide System. A Dose-response Study (DOVA)

NCT ID: NCT02078973

Last Updated: 2017-03-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

15 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-03-01

Study Completion Date

2016-01-31

Brief Summary

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Tolvaptan is a selective vasopressin receptor antagonist (V2R) that increases free water and sodium excretion. Inhibition of V2R increases vasopressin concentration in plasma, which stimulates V1-receptors in the vascular bed and may change both central and brachial hemodynamics and plasma concentration of vasoactive hormones.

The purpose of the study is to measure the effects of tolvaptan on renal handling of water and sodium, systemic hemodynamics and vasoactive hormones at baseline and during nitric oxide (NO)-inhibition with L-NG-monomethyl-arginine (L-NMMA).

Detailed Description

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Conditions

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Nephropathy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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15 mg tolvaptan

Oral administration of 15 mg tolvaptan on each examination day.

Group Type ACTIVE_COMPARATOR

15 mg tolvaptan

Intervention Type DRUG

15 mg pr day for 1 day

30 mg tolvaptan

Oral administration of 30 mg tolvaptan on each examination day.

Group Type ACTIVE_COMPARATOR

30 mg tolvaptan

Intervention Type DRUG

30 mg pr day for 1 day

45 mg tolvaptan

Oral administration of 45 mg tolvaptan on each examination day.

Group Type ACTIVE_COMPARATOR

45 mg tolvaptan

Intervention Type DRUG

45 mg pr day for 1 day

Placebo

Oral administration of a Unikalk tablet

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

1 tablet Unikalk pr day for 1 day

Interventions

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15 mg tolvaptan

15 mg pr day for 1 day

Intervention Type DRUG

30 mg tolvaptan

30 mg pr day for 1 day

Intervention Type DRUG

45 mg tolvaptan

45 mg pr day for 1 day

Intervention Type DRUG

Placebo

1 tablet Unikalk pr day for 1 day

Intervention Type DRUG

Other Intervention Names

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Samsca Samsca Samsca Unikalk

Eligibility Criteria

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Inclusion Criteria

* Men and women, age 18-40 years
* Body Mass Index (BMI) 18,5-30 kg/m2

Exclusion Criteria

* Anamnestic or clinical signs of heart, lung, lever, kidney and brain disease
* Neoplastic disease
* Drug abuse
* Alcohol abuse
* Medical treatment except peroral anticontraceptive
* Pregnancy
* Smoking
* Abnormal blood and urine sample
* Abnormal ECG
* Blood donation within a month before examination
* Arterial hypertension (\>140 mmHg systolic and/or 90 mmHg diastolic)
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Aarhus University Hospital

OTHER

Sponsor Role collaborator

Regional Hospital Holstebro

OTHER

Sponsor Role lead

Responsible Party

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Erling Bjerregaard Pedersen

Professor, MD, Dr.Sci.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Frank H Mose, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Department of medical research

Locations

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Department of medical research

Holstebro, , Denmark

Site Status

Countries

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Denmark

References

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Al Therwani S, Rosenbaek JB, Mose FH, Bech JN, Pedersen EB. Effect of tolvaptan on renal water and sodium excretion and blood pressure during nitric oxide inhibition: a dose-response study in healthy subjects. BMC Nephrol. 2017 Mar 13;18(1):86. doi: 10.1186/s12882-017-0501-1.

Reference Type DERIVED
PMID: 28288570 (View on PubMed)

Other Identifiers

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2013-003800-38

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

SAFA-1-2014

Identifier Type: -

Identifier Source: org_study_id

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