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Pilot trial for the German Endoscopic versus Shock Wave Therapy Study (Pilot-GESS): a randomized controlled trial on interventional treatment of urinary stone disease of the upper urinary tract

Pilot trial for the German Endoscopic versus Shock Wave Therapy Study (Pilot-GESS): a randomized controlled trial on interventional treatment of urinary stone disease of the upper urinary tract - Pilot-GESS

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00005290
Enrollment
60
Registered
2015-08-31
Start date
2015-09-18
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

N20.9

Interventions

Group 1: Part 1: Ureteral calculi: (flexible) uretherrenoscopy (f)URS (experimental) Part 2a: Renal calculi = 10 mm (non-lower pole): (flexible) uretherrenoscopy (f)URS (experimental) Part 2b: Renal c

Sponsors

Universitätsklinikum Freiburg, Klinik für Urologie
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Urolithiasis of upper urinary tract (single urinary stone = 20 mm) requiring treatment

Exclusion criteria

Exclusion criteria: - Multiple stones at the intended site of treatment - Renal stones > 20 mm - Stone not detectable as required for imaging mode of the respective SWL machine in the participating centre (plain radiography (KUB), intravenous ureteropyelography, flouroscopy or sonography) - Stones with medium density > 1000 HU on NCCT - Caliceal diverticular stone - Papillary calcifications (which might be mistaken for residual fragments in final CT) - Malformation of the kidney or ureter, e.g. horseshoe-kidney, megaureter - Anatomical obstruction distal to the stone - Malignant tumour of the kidney or ureter - Transplant-kidney - Untreated or recurrent urinary tract infection - Known coagulation dysfunction or anticoagulation or platelet inhibitors other than acetylsalicylic acid - Chronic or active infection of any kind, acute arterial hypertension or any other serious uncontrolled medical disorders - Arterial aneurysm in the vicinity of the stone - Age < 18 years - Current or planned pregnancy, nursing period - Patient without legal capacity who is unable to understand the nature, significance and consequences of the study - Previous participation (randomization) in this study - Participation in another interventional clinical trial within the last thirty days before the start of this study - Simultaneous participation in other interventional trials which could interfere with the trial

Design outcomes

Primary

MeasureTime frame
Recruitment / randomisation rate

Secondary

MeasureTime frame
1) Feasibility 2) Stone clearance (CT-controlled) within 3 months (yes, no) 3) Clinical success (stone clearance or CIRF = 4 mm) within 3 months (yes, no) 4) Number of re-treatments of the same modality to achieve stone free status during the 3 months-treatment period (until final control after 3 months) 5) Ancillary procedures 6) Efficiency quotient 7) Operative data (use of anaesthesia, operating time (for primary treatment only)) 8) Postoperative data (hospital stays (days, for primary treatment only), number of consultations 9) Use of analgetics (CACS) 10) Patient satisfaction

Countries

Germany

Contacts

Public ContactMartin Schönthaler

Universitätsklinikum Freiburg, Klinik für Urologie

martin.schoenthaler@uniklinik-freiburg.de+49 761 270-28910

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026