Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 and up Men only

Glycyrrhizin treatment for prostate cancer before surgery

Official title: GU-01: Glycyrrhizin in Prostate Cancer: A Window-of-Opportunity Trial

Run by University of Illinois Chicago · NCT06378346 · Data updated 2026-11-12

This study is testing whether a treatment called Glycyrrhizin can help men with untreated prostate cancer feel better before their surgery.

More Prostate Cancer trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexMen only
Enrollment60 (estimated)
SponsorUniversity of Illinois Chicago
Academic / other
Drugs / interventionschemotherapy, immunotherapy, radiation
Locations1 site (Chicago, Illinois)
StatusRecruiting
StartedJuly 25, 2024
Main results expectedMarch 2027
Study endsMarch 2027
Registry record updatedFebruary 23, 2026
Trial IDNCT06378346 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adult males aged 18 and older with a histologic diagnosis of prostate cancer who are eligible for radical prostatectomy.

Probably not a fit

Patients with prior malignancies or those who have received recent cancer treatments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This pilot, randomized trial investigates the effects of Glycyrrhizin (GLY) on patients with untreated prostate cancer who are candidates for radical prostatectomy. Participants will receive one cycle of therapy with either 75mg or 150mg of Glycyrrhizin daily for six weeks prior to their surgery. The study aims to assess the safety and efficacy of this treatment approach in a window-of-opportunity setting. The trial will include a control group receiving observation to compare outcomes.

Why it matters

Potential benefit: If successful, this treatment could improve surgical outcomes and overall management of prostate cancer.

How similar studies have gone: While Glycyrrhizin has been studied in other contexts, this specific approach in prostate cancer is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
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.

Where it's running

  • University of Illinois
    Chicago, Illinois, United States
    Recruiting

Study contacts

  • Principal investigator: Natalie Reizine — University of Illinois Chicago
  • Study coordinator: Natalie Reizine, MD
  • Email: nreizi2@uic.edu
  • Phone: 312-996-1581

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.