Could licorice root extract help fight prostate cancer?
NCT ID NCT06378346
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a compound from licorice root, called glycyrrhizin, can reduce PSA levels in men with prostate cancer before they have surgery to remove the prostate. About 60 men who are scheduled for prostate removal will take glycyrrhizin daily for a short time. The goal is to see if it has any anti-tumor effect and is safe to take.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2024
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- Lead sponsor
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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
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18 years and older
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age ≥ 18 years of age at time of consent 2. ECOG performance status of 0, 1, or 2 3. Histologic diagnosis of prostate cancer 4. Patient suitable for radical prostatectomy as determined by surgical team 5. Able to provide written informed consent and HIPAA authorization for release of personal health information, via an approved UIC Institutional Review Board (IRB) informed consent form and HIPAA authorization. 6. Willing to use barrier contraceptive method during study intervention Exclusion Criteria: 1. Any prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of this investigational regimen, as determined by the treating urologic oncology team. 2. Previous chemotherapy, biological therapy, radiation therapy, androgens, thalidomide, immunotherapy, other anticancer agents and/or investigational agents within 30 days of starting study treatment. 3. Potent or moderate inhibitors and inducers of CYP3A4 if taken within a 1 week wash-out period 4. Concomitant medications known to prolong QT interval, or with factors that increase the risk of QTc prolongation, or History of Torsades de Pointes. This may include patients who have sub-optimally controlled hypertension, serum potassium levels \<4.0 mEq/L, serum magnesium ≤1.8 mg/dL, prolonged gastrointestinal transit time, or decreased 11-β-hydroxysteriod dehydrogenase-2 activity.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Illinois
RECRUITINGChicago, Illinois, 60612, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- A scanner in the operating room could show surgeons exactly where prostate cancer remains
- New PET tracer aims to light up hidden cancer targets
- Can daily adaptive radiotherapy spare healthy tissue in prostate cancer?
- Can a radioactive tracer and MRI reveal prostate Cancer's true extent?
- Five-Fraction radiation plus hormone therapy tested against High-Risk prostate cancer
- Can a 10-Hour eating window fight cancer fatigue?