Prospective Evaluation of Stent-free Retrograde Intrarenal Surgery (RIRS) for Management of Upper Urinary Tract Calculi

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

PACTR

Registry ID

PACTR202606686888089

Enrollment

110

Registered

2026-06-17

Start date

2025-05-01

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Urological and Genital Diseases

Interventions

Retrograde intrarenal surgery

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: • Stone burden: upper ureteral and renal stones up to 15 mm. • Stone density: 1000 Hounsfield units or less.

Exclusion criteria

Exclusion criteria: • Patients with untreated or active UTI. • Patients with ipsilateral double-J stent in situ. • Patients with solitary kidney or bilateral urolithiasis. • Patients with ipsilateral obstructive renal anomaly.

Design outcomes

Primary

Measure	Time frame
Stone-free rate	—

Secondary

Measure	Time frame
Operative time. ;Hospital stay;Post-operative complications by Clavien-Dindo classification	—

Countries

Egypt

Contacts

Public ContactMohammed Mohammed

Urology Resident at National Institute of Urology and Nephrology

moh.i.elmeligy@gmail.com+20102281036

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026