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Tree extract tested for liver and kidney safety

NCT ID NCT07189143

Knowledge-focused Sponsor: University of Ljubljana Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested whether a dietary supplement made from silver fir branches (Belinal®) is safe for the liver and kidneys. Fifteen healthy adults took 900 mg daily for 14 days, and researchers measured blood markers of liver and kidney function. The goal was to see if the extract causes any harm, not to treat a disease.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Silver fir branch extract (Belinal®)
What this could lead to
If safe, this could support the use of silver fir extract as a dietary supplement without harming liver or kidneys.
What could go wrong
This is a very small, early safety study with only 15 healthy people. It cannot prove benefits or detect rare side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

15 people

The number who actually took part.

Started

Aug 2018

Finished

Oct 2018

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy adult volunteers * Age 37-55 years * Both sexes (male and female) * Willingness to comply with study protocol and attend all study visits * Signed informed consent Exclusion Criteria: * Known acute or chronic illness * Use of any medications other than occasional analgesics (none were used by participants) * Use of dietary supplements prior to or during the study * Known mental illness (e.g., depression, psychosis, severe alcoholism, drug abuse) * Consumption of more than 2 alcohol units per day (20 g ethanol, equivalent to \~2 dl wine, 5 dl beer, or 0.3 dl brandy) * Participation in other research studies concurrently

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Dietary supplement Healthy volunteers Kidney function Liver function Safety / toxicology

Contacts and locations

Locations

  • University of Ljubljana

    Ljubljana, 1000, Slovenia

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