Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 to 70

High-dose dexamethasone to relieve ureteral stent symptoms after kidney stone procedure

Official title: Dexamethasone for Ureteral STent Symptoms (DUSTS): A Randomized, Double-blinded Controlled Study

Run by The Methodist Hospital Research Institute · NCT06930690 · Data updated 2026-11-12

In people undergoing ureteroscopy with a ureteral stent, the study tests whether a 20 mg dose of dexamethasone helps reduce urinary symptoms and pain more than a 4 mg dose.

More Ureteral Stent-Related Symptoms trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years to 70 Years
SexAll
Enrollment70 (estimated)
SponsorThe Methodist Hospital Research Institute
Academic / other
Locations1 site (Houston, Texas)
StatusRecruiting
StartedJune 10, 2026
Main results expectedDecember 2026
Study endsApril 2027
Registry record updatedOctober 30, 2026
Trial IDNCT06930690 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–70 undergoing unilateral retrograde ureteroscopy with planned ureteral stent placement for renal/ureteral stones.

Probably not a fit

Patients with uncontrolled diabetes, immune suppression, or other exclusions may not benefit and could be at higher risk from high-dose steroids.

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

What this trial studies

This interventional study compares two doses of dexamethasone given at the time of surgery for patients receiving a ureteral stent after ureteroscopy for kidney stones. Participants are randomized to receive either 20 mg or 4 mg of dexamethasone, and they complete questionnaires on postoperative days 1 and 2, plus a one-week medication diary. Follow-up visits occur around day 2 and days 4–7 after surgery, with a total study duration of about 30 days. The primary aim is to see if the higher dose improves quality of life by day 2 and reduces urinary symptoms and pain.

Why it matters

Potential benefit: If successful, the higher dexamethasone dose could lessen postoperative urinary discomfort and pain for patients with ureteral stents.

How similar studies have gone: Previous studies in similar surgical settings have shown mixed results; this trial tests a higher dose specifically for ureteral stent-related symptoms.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age 18-70 years old
2. Patients who are undergoing unilateral retrograde ureteroscopy (semi-rigid or flexible) with planned ureteral stent placement for treatment of renal/ureteral stones
3. Patients who can read and understand English
4. Patients who can follow up post-operatively within 7 days at Houston Methodist Hospital

Exclusion Criteria:

1. Untreated UTI
2. HbA1c ≥6.5 on preoperative testing
3. Patients with prior diagnosis of any type of diabetes mellitus
4. Patients with immunosuppression, including chronic corticosteroid use
5. Patients with bleeding disorder
6. Patients with chronic liver disease, cirrhosis, and liver failure.
7. Patients taking strong CYP3A4 inducers or inhibitors within two weeks of screening
8. Chronic opioid analgesic use
9. Congenital renal abnormalities (e.g. pelvic kidney, ureteric duplication) that may impair stent placement
10. Concurrent genitourinary malignancy
11. Urinary diversion
12. Renal transplantation
13. History of interstitial cystitis/painful bladder syndrome, prostatitis, pelvic pain due to other conditions (e.g. endometriosis)
14. Neurologic disorder (e.g. spinal cord injury, multiple sclerosis, spina bifida)
15. Pregnant or breastfeeding
16. Patients with cognitive impairments or untreated psychiatric illness

Where it's running

  • Houston Methodist Hospital
    Houston, Texas, United States
    Recruiting

Study contacts

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.