NCT02886507

Brief Summary

This is a randomized double-blinded placebo-controlled study to evaluate the effects of NSK-SD consumption in subjects with Stage I hypertension. The study population will be randomized into two groups, where both groups will receive dietary and lifestyle recommendations to help reduce hypertension. One group will receive placebo and the other group NSK-SD for 8 weeks. The endpoint will be the change in systolic and diastolic blood pressure after 8 weeks of treatment in the two subject groups.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
79

participants targeted

Target at P25-P50 for phase_4 hypertension

Timeline
Completed

Started Mar 2012

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, 2012

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2014

Completed
2.2 years until next milestone

First Submitted

Initial submission to the registry

August 29, 2016

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 1, 2016

Completed
Last Updated

September 1, 2016

Status Verified

August 1, 2016

Enrollment Period

2.3 years

First QC Date

August 29, 2016

Last Update Submit

August 31, 2016

Conditions

Outcome Measures

Primary Outcomes (1)

  • Reduction of hypertension

    Eight weeks

Secondary Outcomes (2)

  • von Willebrand factor

    Eight weeks

  • Plasma renin activity

    Eight weeks

Study Arms (2)

NSK-SD (nattokinase)

ACTIVE COMPARATOR

One capsule (100 mg) nattokinase/day for the 8-week study duration.

Dietary Supplement: NSK-SD (nattokinase)

Placebo

PLACEBO COMPARATOR

One capsule placebo/day for the 8-week study duration.

Dietary Supplement: Placebo

Interventions

NSK-SD (nattokinase)DIETARY_SUPPLEMENT

Nattokinase is a fibrinolytic enzyme from the fermented soy product natto. Encapsulated 100mg/capsule, excipient include microcrystalline cellulose.

NSK-SD (nattokinase)
PlaceboDIETARY_SUPPLEMENT

The placebo capsules contain microcrystalline cellulose.

Placebo

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Healthy adults of both genders;
  • Age 18-85 years;
  • Elevated blood pressure as identified by:
  • Systolic blood pressure 130mmHg or higher, or diastolic blood pressure 90mmHg or higher;
  • Confirmed on three separate occasions.

You may not qualify if:

  • Use of Nattokinase-containing supplements within 60 days prior to enrollment;
  • Currently on blood pressure medication;
  • History of cancer chemotherapy within the last 12 months;
  • Significant active uncontrolled disease (such as lymphoma, cirrhosis, nephritis, uncompensated heart failure);
  • Consumption of more than an average of 2 standard alcoholic drinks/day (14 drinks per week)
  • Currently experiencing intense stressful events/ life changes that would negatively affect compliance;
  • Pregnant, nursing, or trying to become pregnant;
  • Women not using effective contraception;
  • Food allergies related to ingredients in test product.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Hypertension

Interventions

nattokinase

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular Diseases

Study Officials

  • Gitte S Jensen, PhD

    NIS Labs

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research director

Study Record Dates

First Submitted

August 29, 2016

First Posted

September 1, 2016

Study Start

March 1, 2012

Primary Completion

June 1, 2014

Study Completion

June 1, 2014

Last Updated

September 1, 2016

Record last verified: 2016-08

Data Sharing

IPD Sharing
Will share

Manuscript publication.