Dexamethasone for Ureteral STent Symptoms (DUSTS)

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18-70
SponsorThe Methodist Hospital Research Institute

About this trial

The purpose of this study to learn if high-dose dexamethasone, a type of long-acting steroid, works to decrease urinary symptoms and pain after ureteroscopy and stent placement for kidney stones. The main question it aims to answer is:

1\) Does high-dose steroid change the quality of life score on day 2 after surgery

Researchers will compare high-dose of dexamethasone (20 mg) to a standard dose of dexamethasone (4 mg) to see if a higher dose of the drug will help with urinary symptoms and pain

Participants will:

1. randomly receive 20 mg or 4 mg of dexamethasone (20 mg) at the time of surgery 2. fill out a questionnaire day 1 and day 2 after surgery 3. fill out a medication diary for one week after surgery 4. visit the clinic on day 2 after surgery for checkup 5. visit the clinic on day 4-7 after surgery for check up

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 18-70 years old

Patients who are undergoing unilateral retrograde ureteroscopy (semi-rigid or flexible) with planned ureteral stent placement for treatment of renal/ureteral stones

Patients who can read and understand English

Patients who can follow up post-operatively within 7 days at Houston Methodist Hospital

Disqualifiers

Untreated UTI

HbA1c ≥6.5 on preoperative testing

Patients with prior diagnosis of any type of diabetes mellitus

Patients with immunosuppression, including chronic corticosteroid use

Trial design

Design model

Parallel

Treatments tested in this trial

  • Dexamethasone Sodium Phosphate Injection 20 mg

    Drug

    dexamethasone 20 mg diluted in 50 mL of normal saline administered by intravenous drip after induction of anesthesia

  • Dexamethasone Sodium Phosphate Injection 4mg

    Drug

    dexamethasone 4 mg diluted in 50 mL of normal saline administered by intravenous drip after induction of anesthesia

Treatment groups

70 Participants
are divided into 2 treatment groups
Group A: Treatment ArmExperimental treatment 1 intervention
Group B: Control ArmActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Global Quality of Life Score of Ureteral Stent Symptom Questionnaire (USSQ)

A 1 to 7 rating scale used to measure survey participants' feeling if they were advised to have another stent inserted, from 1 = delighted to 7 = terrible.

Time frame
Day 2 after surgery

Secondary outcomes

1

Urinary Index Score of the USSQ

This domain assesses urinary symptoms (e.g., urgency, frequency, dysuria) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.

Time frame
Day 2 after surgery
2

Pain Index Score of the USSQ

This domain assesses pain (e.g., flank pain, suprapubic discomfort) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.

Time frame
Day 2 after surgery
3

General Health Index Score of the USSQ

This domain assesses general health (overall health perception and well-being) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.

Time frame
Day 2 after surgery
4

Work Performance Index Score of the USSQ

This domain assesses work performance (impact of stent symptoms on work productivity) and consists of multiple questions, each answered using a Likert-type scale. Higher scores indicate greater symptom severity.

Time frame
Day 2 after surgery

Other outcomes

1

Incidence of steroid-related adverse events

Incidence of the steroid-induced hyperglycemia (SIHG) as defined as random blood glucose ≥200 mg/dL and hyperglycemia-related adverse events including diabetic ketoacidosis (DKA) and hyperosmolar syndrome (HHS)

Time frame
Within 30 days
2

Incidence of UTIs

Incidence of symptomatic urinary tract infections (UTIs)

Time frame
Within 30 days
3

Number of ER visit or hospital admission

Number of unplanned emergency room visit or hospital admission

Time frame
Within 30 days

Sponsors and contacts

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