Observational Approach Versus Surgical Intervention for Stones

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age6+
SponsorChildren's Hospital of Philadelphia

About this trial

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.

Eligibility criteria

Qualifiers

Individuals age 6 or older

Diagnosis of kidney stone disease (nephrolithiasis)

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.

Disqualifiers

Untreated hydronephrosis or caliectasis

Pain (e.g., renal colic, abdominal pain) or gross hematuria attributed to kidney stones.

Recurrent symptomatic urinary tract infections (≥3 in 12 months or ≥2 in 6 months). A symptomatic urinary tract infection is defined as having at least one bladder or voiding symptom (e.g., frequency, urgency, dysuria) with bacteriuria (≥105 colony forming units/mL of no more than 2 urinary tract pathogens).

Stone in the renal pelvis, ureter, bladder or urethra

Trial design

Treatments tested in this trial

  • Surgery
  • Observation

Treatment groups

1,658 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Children's Hospital of Philadelphia

Lead sponsor

Patient-Centered Outcomes Research Institute

Collaborator