NCT06019598

Brief Summary

Out-of-office blood pressure is more strongly associated with cardiovascular risk than office blood pressure. Licorice is known to raise blood pressure, but no previous studies have measured the effects on home blood pressure. The aim of this study is to analyze the association between licorice intake and home blood pressure.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
3

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2023

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

First Submitted

Initial submission to the registry

August 25, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 31, 2023

Completed
19 days until next milestone

Study Start

First participant enrolled

September 19, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 24, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 13, 2024

Completed
Last Updated

October 9, 2024

Status Verified

October 1, 2024

Enrollment Period

5 months

First QC Date

August 25, 2023

Last Update Submit

October 7, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Systolic home blood pressure

    Systolic home blood pressure

    3 days before interventions and 28 days during intervention

Secondary Outcomes (8)

  • Diastolic home blood pressure

    3 days before interventions and 28 days during intervention

  • Body weight

    Day 0, 14 and 28

  • Plasma sodium

    Day 0, 14 and 28

  • Plasma potassium

    Day 0, 14 and 28

  • Plasma creatinine

    Day 0, 14 and 28

  • +3 more secondary outcomes

Study Arms (1)

Licorice

EXPERIMENTAL

2 weeks of licorice corresponding to 20 mg of glycyrrhizic acid followed by 2 weeks of licorice corresponding to 50 mg of glycyrrhizic acid.

Other: Licorice

Interventions

Ecologic sweet licorice pastilles made from Glycyrrhiza glabra grown in Calabria, Italy, with a GA content of 29.9 ±2.0 mg/g.

Licorice

Eligibility Criteria

Age18 Years - 31 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Previous participation in the Licorice and home blood pressure study (NCT05661721).

You may not qualify if:

  • Known hypertension, cardiovascular disease, kidney disease, liver disease, hormonal disease, peanut allergy, eating disorder or headache disease (including tension headache and migraine)
  • Known alcohol abuse or drug abuse (including cannabis and anabolic steroids) treatment with hormonal drugs (including oral contraceptives
  • Known intolerance to licorice intake.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cityhälsan Centrum

Norrköping, Östergötland County, 60239, Sweden

Location

Related Publications (5)

  • Williams B, Mancia G, Spiering W, Agabiti Rosei E, Azizi M, Burnier M, Clement DL, Coca A, de Simone G, Dominiczak A, Kahan T, Mahfoud F, Redon J, Ruilope L, Zanchetti A, Kerins M, Kjeldsen SE, Kreutz R, Laurent S, Lip GYH, McManus R, Narkiewicz K, Ruschitzka F, Schmieder RE, Shlyakhto E, Tsioufis C, Aboyans V, Desormais I; Authors/Task Force Members:. 2018 ESC/ESH Guidelines for the management of arterial hypertension: The Task Force for the management of arterial hypertension of the European Society of Cardiology and the European Society of Hypertension: The Task Force for the management of arterial hypertension of the European Society of Cardiology and the European Society of Hypertension. J Hypertens. 2018 Oct;36(10):1953-2041. doi: 10.1097/HJH.0000000000001940.

    PMID: 30234752BACKGROUND
  • Deutch MR, Grimm D, Wehland M, Infanger M, Kruger M. Bioactive Candy: Effects of Licorice on the Cardiovascular System. Foods. 2019 Oct 14;8(10):495. doi: 10.3390/foods8100495.

    PMID: 31615045BACKGROUND
  • Parati G, Stergiou GS, Bilo G, Kollias A, Pengo M, Ochoa JE, Agarwal R, Asayama K, Asmar R, Burnier M, De La Sierra A, Giannattasio C, Gosse P, Head G, Hoshide S, Imai Y, Kario K, Li Y, Manios E, Mant J, McManus RJ, Mengden T, Mihailidou AS, Muntner P, Myers M, Niiranen T, Ntineri A, O'Brien E, Octavio JA, Ohkubo T, Omboni S, Padfield P, Palatini P, Pellegrini D, Postel-Vinay N, Ramirez AJ, Sharman JE, Shennan A, Silva E, Topouchian J, Torlasco C, Wang JG, Weber MA, Whelton PK, White WB, Mancia G; Working Group on Blood Pressure Monitoring and Cardiovascular Variability of the European Society of Hypertension. Home blood pressure monitoring: methodology, clinical relevance and practical application: a 2021 position paper by the Working Group on Blood Pressure Monitoring and Cardiovascular Variability of the European Society of Hypertension. J Hypertens. 2021 Sep 1;39(9):1742-1767. doi: 10.1097/HJH.0000000000002922.

    PMID: 34269334BACKGROUND
  • Spinks EA, Fenwick GR. The determination of glycyrrhizin in selected UK liquorice products. Food Addit Contam. 1990 Nov-Dec;7(6):769-78. doi: 10.1080/02652039009373939.

    PMID: 2079112BACKGROUND
  • Rizzato G, Scalabrin E, Radaelli M, Capodaglio G, Piccolo O. A new exploration of licorice metabolome. Food Chem. 2017 Apr 15;221:959-968. doi: 10.1016/j.foodchem.2016.11.068. Epub 2016 Nov 17.

    PMID: 27979300BACKGROUND

MeSH Terms

Conditions

Essential Hypertension

Interventions

Glycyrrhiza glabra extract

Condition Hierarchy (Ancestors)

HypertensionVascular DiseasesCardiovascular Diseases

Study Officials

  • Fredrik H Nyström, MD, PhD

    Linkoeping University

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

August 25, 2023

First Posted

August 31, 2023

Study Start

September 19, 2023

Primary Completion

February 24, 2024

Study Completion

August 13, 2024

Last Updated

October 9, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

As specified below.

Shared Documents
STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
Time Frame
After publication in a peer-reviewed journal and for the period of time for which local archive regulations stipulate.
Access Criteria
To be determined on a case by case basis.

Locations