Bladder StoneSPT-CYSTO TriaNCT07642440
Suprapubic Drainage During Transurethral Cystolithotripsy for Large Bladder Stones
A study testing Standard Transurethral Holmium Laser Cystolithotripsy and Adjunctive Suprapubic Catheter Drainage in people with Bladder Stone and Cystolithiasis, run by Beni-Suef University at 1 site in Egypt.
Trial summary
Bladder stones larger than 2 cm are commonly treated by endoscopic fragmentation through the urethra. During transurethral cystolithotripsy for large stones, the procedure may be prolonged because of poor visibility, stone dust, bladder overdistension, and repeated need for irrigation or evacuation. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Bladder Stone, Cystolithiasis
- What is being tested?
- Standard Transurethral Holmium Laser Cystolithotripsy and Adjunctive Suprapubic Catheter Drainage
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 140 participants
- Where
- 1 siteEgypt
- Study dates
- 8 Jun 2026to Jun 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age 18 years or older.
- Radiologically confirmed bladder stone with maximum diameter greater than 2 cm.
- Scheduled for elective transurethral cystolithotripsy.
- Sterile urine culture before surgery, or adequately treated urinary tract infection according to culture sensitivity.
- Fit for spinal or general anesthesia.
- Ability to provide written informed consent.
Who cannot join
- Urethral stricture preventing safe cystoscopic access.
- Active uncontrolled urinary tract infection or sepsis.
- Neurogenic bladder with severely impaired bladder emptying requiring chronic catheterization.
- History of bladder cancer or suspected bladder tumor requiring simultaneous transurethral resection of bladder tumor.
- Coagulopathy or uncorrected bleeding tendency.
- Patients requiring concomitant transurethral resection of the prostate, Holmium laser enucleation of the prostate, or other prostate surgery in the same session.
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- Previous pelvic radiotherapy or major lower urinary tract reconstruction.
- Pregnancy.
- Refusal to participate.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Egypt1 site, 1 recruiting
- Recruiting
Department of Urology- Beni-Suef University Hospitals
Banī Suwayf, Beni Suweif Governorate
Hany F Badawy, MD, 01149525028, HANYFATHY86@GMAIL.COM
HANYFATHY86@GMAIL.COM
About this study
Official title: Transurethral Cystolithotripsy With Versus Without Adjunctive Suprapubic Tube Drainage for Bladder Stones >2 cm: A Prospective Randomized Controlled Trial
Bladder stones larger than 2 cm are commonly treated by endoscopic fragmentation through the urethra. During transurethral cystolithotripsy for large stones, the procedure may be prolonged because of poor visibility, stone dust, bladder overdistension, and repeated need for irrigation or evacuation.
This randomized controlled trial will compare standal Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath with the same procedure plus an adjunctive 8 Fr suprapubic catheter used only for bladder drainage during the operation. The suprapubic catheter will not be used for stone fragmentation or stone extraction.
The main outcome will be total operative time. Secondary outcomes will include fragmentation and clearance time, laser activation time, total laser energy, irrigation volume, visibility-related interruptions, stone-free rate at 30 days, complications, catheter duration, postoperative pain, and hospital stay.
Read the detailed description
This is a prospective, randomized, controlled, parallel-group clinical trial conducted at the Department of Urology, Beni-Suef University Hospital, Faculty of Medicine, Beni-Suef University, Egypt. Adult patients with radiologically confirmed bladder stones greater than 2 cm who are scheduled for elective transurethral cystolithotripsy will be enrolled after written informed consent.
Participants will be randomized in a 1:1 ratio into two groups. The control group will undergo standardized transurethral Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath with conventional irrigation and transurethral evacuation only. The experimental group will undergo the same procedure with adjunctive 8 Fr suprapubic catheter drainage inserted under ultrasound guidance and cystoscopic visualization. The suprapubic catheter will be connected to free drainage during lithotripsy to assist bladder decompression and irrigation outflow. It will not be used for stone fragmentation, stone extraction, tract dilation, sheath placement, or percutaneous cystolithotripsy.
All procedures will use the same standardized cystoscopic access, Holmium:YAG laser platform, irrigation system, and transurethral evacuation method. The primary outcome is total operative time, measured from cystoscope insertion into the urethra until endoscopic confirmation of complete stone clearance and completion of final urethral catheter placement. Postoperative follow-up will continue for 30 days, including assessment of stone-free status by imaging and recording of perioperative complications.
- Conditions
- Bladder Stone, Cystolithiasis
- Being tested
- Standard Transurethral Holmium Laser Cystolithotripsy, Adjunctive Suprapubic Catheter Drainage
- Keywords
- Transurethral cystolithotripsy, Suprapubic drainage, Suprapubic catheter
- Medical subject headings
- Urinary Bladder Calculi
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standard Transurethral Holmium Laser CystolithotripsyProcedure or surgery
Standardized transurethral Holmium:YAG laser cystolithotripsy performed through a 17 Fr cystoscope sheath, with conventional irrigation and transurethral evacuation of stone dust and fragments. A urethral Foley catheter will be inserted at the end of the procedure. This procedure will be performed in both study arms.
Adjunctive Suprapubic Catheter DrainageProcedure or surgery
Insertion of an 8 Fr suprapubic catheter under ultrasound guidance and cystoscopic visualization during transurethral cystolithotripsy. The catheter will be connected to free drainage to assist bladder decompression and irrigation outflow during lithotripsy. It will not be used for stone fragmentation, stone extraction, tract dilation, sheath placement, or percutaneous cystolithotripsy.
| Study group | Role | What they receive |
|---|---|---|
| Standard Transurethral Cystolithotripsy | Active comparator | Participants assigned to this arm will undergo standardized transurethral Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath with conventional irrigation and transurethral evacuation only, without adjunctive suprapubic catheter drainage. Receives: Procedure: Standard Transurethral Holmium Laser Cystolithotripsy |
| Transurethral Cystolithotripsy With Suprapubic Drainage | Experimental | Participants assigned to this arm will undergo the same standardized transurethral Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath, with adjunctive 8 Fr suprapubic catheter drainage inserted under ultrasound guidance and cystoscopic visualization for bladder drainage and decompression during lithotripsy. No stone fragmentation or extraction will be performed through the suprapubic route Receives: Procedure: Adjunctive Suprapubic Catheter Drainage |
What is being measured
The primary outcome is the main question the study is designed to answer.
Total Operative Time
Total operative time will be measured in minutes from insertion of the cystoscope into the urethra until endoscopic confirmation of complete bladder stone clearance and completion of final urethral catheter placement. In the suprapubic drainage group, the time required for insertion of the 8 Fr suprapubic catheter will be included because the study evaluates the overall procedural efficiency of adding adjunctive suprapubic cathe+ drainage
Measured: During the surgical procedure
Secondary outcomes (5)
Stone Fragmentation and Clearance Time
Time measured in minutes from the start of Holmium:YAG laser lithotripsy until endoscopic confirmation of complete bladder stone fragmentation and clearance
Measured: During the surgical procedure
Total Laser Energy
Total Holmium:YAG laser energy delivered during cystolithotripsy, recorded in joules from the laser device.
Measured: During the surgical procedure
Visibility-Related Interruptions
Number of intraoperative interruptions of lithotripsy due to poor endoscopic vision, stone dust, bladder overdistension, clot, or need for evacuation or irrigation adjustment.
Measured: During the surgical procedure
Urethral Catheter Duration
Duration of postoperative urethral Foley catheterization, measured from the end of surgery until catheter removal.
Measured: From end of surgery until catheter removal, up to 30 days
Postoperative Pain Score
Postoperative pain will be assessed using the Visual Analogue Scale. The scale ranges from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain.
Measured: 6 hours and 24 hours after surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jun 2026
- Study start8 Jun 2026
- Primary completionMay 2028 (estimated)
- Study completionJun 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Bladder StoneStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants will be randomized in a 1:1 ratio to undergo standardized transurethral holmium laser cystolithotripsy using a 17 Fr cystoscope sheath either without adjunctive suprapubic drainage or with adjunctive 8 Fr suprapubic catheter drainage
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 140 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Beni-Suef University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hany Fathy Badawy, MD, Beni-Suef University
- Investigators
- Hany F Badawy, MD, Principal investigator, Faculty of Medicine, Beni-Suef University hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07642440
- Sponsor's protocol ID
- FMBSUREC-07062026a-Badawy
- Acronym
- SPT-CYSTO Tria
- Status last verified
- Jun 2026
- First submitted
- 8 Jun 2026
- Last updated
- 16 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data will not be shared because the study contains individual-level clinical and operative data. Only aggregated, de-identified study results will be reported in publications or presentations. Any future sharing of de-identified participant-level data would require additional approval from the Research Ethics Committee, Faculty of Medicine, Beni-Suef University.
Study at a glance
From the registry record, last updated by the sponsor on 16 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Transurethral Cystolithotripsy With Versus Without Adjunctive Suprapubic Tube Drainage for Bladder Stones >2 cm: A Prospective Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07642440
- Acronym / sponsor ID
- SPT-CYSTO Tria / FMBSUREC-07062026a-Badawy
- Conditions
- Bladder Stone, Cystolithiasis
- Keywords
- Transurethral cystolithotripsy, Suprapubic drainage, Suprapubic catheter
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 140 participants (estimated)
- Lead sponsor
- Beni-Suef UniversityUniversity, hospital or other
- Study start
- 8 Jun 2026 (actual)
- Primary completion
- May 2028 (estimated)
- Study completion
- Jun 2028 (estimated)
- First posted
- 11 Jun 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Bladder stones larger than 2 cm are commonly treated by endoscopic fragmentation through the urethra. During transurethral cystolithotripsy for large stones, the procedure may be prolonged because of poor visibility, stone dust, bladder overdistension, and repeated need for irrigation or evacuation.
This randomized controlled trial will compare standal Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath with the same procedure plus an adjunctive 8 Fr suprapubic catheter used only for bladder drainage during the operation. The suprapubic catheter will not be used for stone fragmentation or stone extraction.
The main outcome will be total operative time. Secondary outcomes will include fragmentation and clearance time, laser activation time, total laser energy, irrigation volume, visibility-related interruptions, stone-free rate at 30 days, complications, catheter duration, postoperative pain, and hospital stay.
Detailed description
This is a prospective, randomized, controlled, parallel-group clinical trial conducted at the Department of Urology, Beni-Suef University Hospital, Faculty of Medicine, Beni-Suef University, Egypt. Adult patients with radiologically confirmed bladder stones greater than 2 cm who are scheduled for elective transurethral cystolithotripsy will be enrolled after written informed consent.
Participants will be randomized in a 1:1 ratio into two groups. The control group will undergo standardized transurethral Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath with conventional irrigation and transurethral evacuation only. The experimental group will undergo the same procedure with adjunctive 8 Fr suprapubic catheter drainage inserted under ultrasound guidance and cystoscopic visualization. The suprapubic catheter will be connected to free drainage during lithotripsy to assist bladder decompression and irrigation outflow. It will not be used for stone fragmentation, stone extraction, tract dilation, sheath placement, or percutaneous cystolithotripsy.
All procedures will use the same standardized cystoscopic access, Holmium:YAG laser platform, irrigation system, and transurethral evacuation method. The primary outcome is total operative time, measured from cystoscope insertion into the urethra until endoscopic confirmation of complete stone clearance and completion of final urethral catheter placement. Postoperative follow-up will continue for 30 days, including assessment of stone-free status by imaging and recording of perioperative complications.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
- Model description
- Participants will be randomized in a 1:1 ratio to undergo standardized transurethral holmium laser cystolithotripsy using a 17 Fr cystoscope sheath either without adjunctive suprapubic drainage or with adjunctive 8 Fr suprapubic catheter drainage
| Arm | Type | Receives |
|---|---|---|
| Standard Transurethral Cystolithotripsy | Active comparator | Procedure: Standard Transurethral Holmium Laser CystolithotripsyParticipants assigned to this arm will undergo standardized transurethral Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath with conventional irrigation and transurethral evacuation only, without adjunctive suprapubic catheter drainage. |
| Transurethral Cystolithotripsy With Suprapubic Drainage | Experimental | Procedure: Adjunctive Suprapubic Catheter DrainageParticipants assigned to this arm will undergo the same standardized transurethral Holmium:YAG laser cystolithotripsy using a 17 Fr cystoscope sheath, with adjunctive 8 Fr suprapubic catheter drainage inserted under ultrasound guidance and cystoscopic visualization for bladder drainage and decompression during lithotripsy. No stone fragmentation or extraction will be performed through the suprapubic route |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Age 18 years or older.
- Radiologically confirmed bladder stone with maximum diameter greater than 2 cm.
- Scheduled for elective transurethral cystolithotripsy.
- Sterile urine culture before surgery, or adequately treated urinary tract infection according to culture sensitivity.
- Fit for spinal or general anesthesia.
Key exclusion criteria (9 listed)
- Urethral stricture preventing safe cystoscopic access.
- Active uncontrolled urinary tract infection or sepsis.
- Neurogenic bladder with severely impaired bladder emptying requiring chronic catheterization.
- History of bladder cancer or suspected bladder tumor requiring simultaneous transurethral resection of bladder tumor.
- Coagulopathy or uncorrected bleeding tendency.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Standard Transurethral Holmium Laser CystolithotripsyStandardized transurethral Holmium:YAG laser cystolithotripsy performed through a 17 Fr cystoscope sheath, with conventional irrigation and transurethral evacuation of stone dust and fragments. A urethral Foley catheter will be inserted at the end of the procedure. This procedure will be performed in both study arms. | Procedure or surgery | Standard Transurethral Cystolithotripsy |
| Adjunctive Suprapubic Catheter DrainageInsertion of an 8 Fr suprapubic catheter under ultrasound guidance and cystoscopic visualization during transurethral cystolithotripsy. The catheter will be connected to free drainage to assist bladder decompression and irrigation outflow during lithotripsy. It will not be used for stone fragmentation, stone extraction, tract dilation, sheath placement, or percutaneous cystolithotripsy. | Procedure or surgery | Transurethral Cystolithotripsy With Suprapubic Drainage |
Primary outcome
Total Operative Time
Time frame: During the surgical procedure
Total operative time will be measured in minutes from insertion of the cystoscope into the urethra until endoscopic confirmation of complete bladder stone clearance and completion of final urethral catheter placement. In the suprapubic drainage group, the time required for insertion of the 8 Fr suprapubic catheter will be included because the study evaluates the overall procedural efficiency of adding adjunctive suprapubic cathe+ drainage
5 secondary outcomes
Stone Fragmentation and Clearance Time
Time frame: During the surgical procedure
Total Laser Energy
Time frame: During the surgical procedure
Visibility-Related Interruptions
Time frame: During the surgical procedure
Urethral Catheter Duration
Time frame: From end of surgery until catheter removal, up to 30 days
Postoperative Pain Score
Time frame: 6 hours and 24 hours after surgery
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Jun 2026.
- Individual participant dataSharing planned: No. Individual participant data will not be shared because the study contains individual-level clinical and operative data. Only aggregated, de-identified study results will be reported in publications or presentations. Any future sharing of de-identified participant-level data would require additional approval from the Research Ethics Committee, Faculty of Medicine, Beni-Suef University.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Hany F Badawy, MD principal investigator
Faculty of Medicine, Beni-Suef University hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Standard Transurethral Holmium Laser Cystolithotripsy and Adjunctive Suprapubic Catheter Drainage in people with Bladder Stone and Cystolithiasis, run by Beni-Suef University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 16 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Hany F Badawy, MD (+201149525028, HANYFATHY86@GMAIL.COM), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Total Operative Time (time frame: During the surgical procedure). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jun 2026.