Observational Approach Versus Surgical Intervention for Stones
Children's Hospital of Philadelphia
Summary
The aims of the Observational Approach versus Surgical Intervention for Asymptomatic Stone (OASIS) trial are: 1) to determine whether observation compared to upfront surgery results in less healthcare-related life disruption due to kidney stones among children and adults with asymptomatic kidney stones; 2) to identify the groups benefiting the most from each strategy; and 3) to determine the preferences and values informing the choice between observation and upfront surgery.
Description
A critical barrier to improving the health of the nearly 40 million Americans with kidney stone disease is the weak evidence base supporting the management of individuals with asymptomatic kidney stones. The proposed Observational Approach versus Surgical Intervention for Asymptomatic Stone (OASIS) randomized clinical trial answers the research question of whether observation or upfront surgery results in less life disruption from asymptomatic kidney stones for children and adults. The management options for patients with asymptomatic stones are 1) observation or 2) upfront surgical treatment,…
Eligibility
- Age range
- 6+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: 1. Individuals age 6 or older 2. Diagnosis of kidney stone disease (nephrolithiasis) 3. Asymptomatic, non-obstructive kidney stones measuring 4 to 10 mm (inclusive) * Asymptomatic is defined as the absence of abdominal pain, flank pain, gross hematuria, and nausea and/or vomiting in the last 3 months that in the judgement of the site PI could be attributable to kidney stones. * Non-obstructive is defined as a stone in a renal calyx or stones in multiple renal calyces on CT, ultrasound, and/or x-ray obtained within 6 months of screening. 4. Informed consent and if ap…
Interventions
- ProcedureSurgery
Upfront surgery is the planned removal of asymptomatic stones and includes ureteroscopy and shockwave lithotripsy, which are routinely used in standard clinical care.
- OtherObservation
Observation is the surveillance of asymptomatic stones with periodic CT, ultrasound, or x-ray, and clinic visits.
Location
- The Children's Hospital of PhiladelphiaPhiladelphia, Pennsylvania