Kidney StonesNCT02522689
Comparison of Ultra-mini PCNL and Micro PCNL
A study testing Endoscopic kidney stone surgery in people with Kidney Stones, run by Selcuk University at 1 site in Turkey (Türkiye).
Trial summary
It is aimed to evaluate the treatment results, rates of success and complications, and injury given to the kidney by measuring preoperative and postoperative blood and Cystatin C levels in patients with kidney stones smaller than 2 cm who will undergo either ultra-mini percutaneous nephrolithotripsy (PCNL) or micro… Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Kidney Stones
- What is being tested?
- Endoscopic kidney stone surgery
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 8 Oct 2019to Sep 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients who are planned to undergo PCNL due to kidney stone
- Patients with a kidney stone < 2 cm
- Patients between 18 and 65 years old
Who cannot join
- Patients with unregulated diabetes mellitus and diabetic nephropathy
- Patients with a blood pressure higher than 140/80 mmHg despite use of antihypertensive drug(s) regularly
- Patients with chronic renal failure who need dialysis
- Patients who had prerenal, renal or postrenal acute kidney failure during the last 6 months
- Patients who had acute pyelonephritis during the last 6 months
- Patients younger than 18 years old or older than 65 years old
Show all 13Show fewer
- Patients who had kidney surgery during the last 3 months and who have abnormal kidney functions
- Patients with ureteral stone who are planned to undergo endoscopic stone treatment at the same time
- Patients with a history of corticosteroid use during enrollment into the study or previous 3 months
- Patients with uncontrolled thyroid disease
- Patients who have a disease with rapid cell turn-over (like leukemia, lymphoma, etc.)
- Patients whose operation terminated or converted to open surgery due to any reason
- Patients with missing data
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site, 1 recruiting
- Recruiting
Selcuk University, School of Medicine, Department of Urology
Konya, 42075
Ozcan Kilic, M.D., +905074196189, drozcankilic@yahoo.com
Murat Akand, M.D., +905327438333, drmuratakand@yahoo.com
About this study
Official title: Comparison of Success Rates, Complication Rates and Injury to Kidneys of Ultra-mini PCNL and Micro PCNL in the Treatment of Kidney Stones
It is aimed to evaluate the treatment results, rates of success and complications, and injury given to the kidney by measuring preoperative and postoperative blood and Cystatin C levels in patients with kidney stones smaller than 2 cm who will undergo either ultra-mini percutaneous nephrolithotripsy (PCNL) or micro PCNL.
Read the detailed description
In this study, the demographic and preoperative data, imaging data, operative data and postoperative follow-up data will be prospectively recorded according to the patient information forms for the patients with kidney stone smaller than 2 cm who will undergo either ultra-mini PCNL or micro PCNL.
A total of 60 (sixty) patients, aging between 18 and 65 years, with similar stone size and location are being planned to be enrolled into the study; and will be prospectively randomized into two groups with a 1:1 ratio, thus 30 (thirty) patients will receive ultra-mini PCNL while 30 (thirty) patients will undergo micro PCNL.
Preoperatively, blood and urine Cystatin C levels will be measured. After the surgery, blood and urine Cystatin C levels at postoperative 12th hour will be recorded. Besides these, classical kidney function tests, namely blood urea and creatinine levels, will be measured preoperatively and postoperatively.
Parameters listed below will be also recorded and evaluated:
- Preoperative general evaluation data: Age, height, weight, body-mass index, concomitant comorbidities, prescriptions used, history of operation(s), American Society of Anesthesiologists (ASA) score
- Preoperative urological evaluation data: History of extracorporeal shock wave lithotripsy (ESWL)/PCNL/ureterorenoscopy (URS)/retrograde intrarenal surgery (RIRS)/open surgery, whole blood count, kidney function tests, automatic urine test, urine culture, preoperative imaging modality (KUB, US, CT), number-dimensions-localization-composition of stone(s), existence of hydronephrosis
- Operative data: Access fluoroscopy duration, total access duration, total fluoroscopy duration, operation duration, use of double-J stent, preoperative complications
- Number of previous ESWL seance, total duration of ESWL, number of shots during ESWL (if any)
- Follow-up data: Urethral catheterization time, hospitalization time, need of any other treatment for being stone-free, time to full stone-free, duration to removal of double-J stent, existence of residual stone(s), formation of new stone(s), complications in late period
- Conditions
- Kidney Stones
- Being tested
- Endoscopic kidney stone surgery
- Keywords
- kidney stone, percutaneous nephrolithotripsy, ultra-mini PCNL, micro PCNL
- Medical subject headings
- Kidney Calculi
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Endoscopic kidney stone surgeryProcedure or surgery
Ultra-mini PCNL will be performed.
Endoscopic kidney stone surgeryProcedure or surgery
Micro PCNL will be performed.
| Study group | Role | What they receive |
|---|---|---|
| Ultra-mini PCNL | Active comparator | Endoscopic kidney stone surgery: Patients will undergo ultra-mini percutaneous nephrolithotripsy. Receives: Procedure: Endoscopic kidney stone surgery |
| Micro PCNL | Active comparator | Endoscopic kidney stone surgery: Patients will undergo micro percutaneous nephrolithotripsy. Receives: Procedure: Endoscopic kidney stone surgery |
What is being measured
The primary outcome is the main question the study is designed to answer.
Stone-free rate
Determination of any residual stone in the collecting system by using one of imaging modalities.
Measured: Within the first 30 days after surgery.
Secondary outcomes (3)
Complication rate
Determination of any complications related to the surgery.
Measured: Within the first 30 days after surgery.
Blood Cystatin C level (mg/L)
Determination of any impairment in renal function after the surgery/procedure by measuring blood Cystatin C level.
Measured: Within the first 12 hours after surgery.
Urine Cystatin C level (mg/L)
Determination of any impairment in renal function after the surgery/procedure by measuring urine Cystatin C level.
Measured: Within the first 12 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 posted13 Aug 2015 (estimated)
- Study start8 Oct 2019
- Primary completionJul 2021 (estimated)
- Study completionSep 2021 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Kidney StonesStudies of the same condition, open and under way.
- More trials run by Selcuk UniversityThe sponsor's other registered studies.
- 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
- Masking
- None (open label)
- Enrolment
- 60 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Selcuk University
- Sponsor type
- University, hospital or other
- Collaborators
- The Scientific and Technological Research Council of Turkey
- Responsible party
- Principal investigator, Ozcan Kilic, Selcuk University
- Investigators
- Ozcan Kilic, M.D., Principal investigator, Selcuk University, School of Medicine, Department of Urology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02522689
- Sponsor's protocol ID
- SU-PCNL-UMMP-02
- Status last verified
- Nov 2019
- First submitted
- 9 Aug 2015
- Last updated
- 18 Nov 2019
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
de la Rosette J, Assimos D, Desai M, Gutierrez J, Lingeman J, Scarpa R, Tefekli A; CROES PCNL Study Group. The Clinical Research Office of the Endourological Society Percutaneous Nephrolithotomy Global Study: indications, complications, and outcomes in 5803 patients. J Endourol. 2011 Jan;25(1):11-7. doi: 10.1089/end.2010.0424.
PubMed 21247286Xu S, Shi H, Zhu J, Wang Y, Cao Y, Li K, Wang Y, Sun Z, Xia S. A prospective comparative study of haemodynamic, electrolyte, and metabolic changes during percutaneous nephrolithotomy and minimally invasive percutaneous nephrolithotomy. World J Urol. 2014 Oct;32(5):1275-80. doi: 10.1007/s00345-013-1204-2. Epub 2013 Nov 1.
PubMed 24177788Wong KA, Sahai A, Patel A, Thomas K, Bultitude M, Glass J. Is percutaneous nephrolithotomy in solitary kidneys safe? Urology. 2013 Nov;82(5):1013-6. doi: 10.1016/j.urology.2013.06.034. Epub 2013 Aug 16.
PubMed 23958507Kamphuis GM, Baard J, Westendarp M, de la Rosette JJ. Lessons learned from the CROES percutaneous nephrolithotomy global study. World J Urol. 2015 Feb;33(2):223-33. doi: 10.1007/s00345-014-1367-5. Epub 2014 Aug 7.
PubMed 25100624De S, Autorino R, Kim FJ, Zargar H, Laydner H, Balsamo R, Torricelli FC, Di Palma C, Molina WR, Monga M, De Sio M. Percutaneous nephrolithotomy versus retrograde intrarenal surgery: a systematic review and meta-analysis. Eur Urol. 2015 Jan;67(1):125-137. doi: 10.1016/j.eururo.2014.07.003. Epub 2014 Jul 23.
PubMed 25064687Bader MJ, Gratzke C, Seitz M, Sharma R, Stief CG, Desai M. The "all-seeing needle": initial results of an optical puncture system confirming access in percutaneous nephrolithotomy. Eur Urol. 2011 Jun;59(6):1054-9. doi: 10.1016/j.eururo.2011.03.026. Epub 2011 Apr 1.
PubMed 21477921Desai MR, Sharma R, Mishra S, Sabnis RB, Stief C, Bader M. Single-step percutaneous nephrolithotomy (microperc): the initial clinical report. J Urol. 2011 Jul;186(1):140-5. doi: 10.1016/j.juro.2011.03.029. Epub 2011 May 14.
PubMed 21575966Hatipoglu NK, Tepeler A, Buldu I, Atis G, Bodakci MN, Sancaktutar AA, Silay MS, Daggulli M, Istanbulluoglu MO, Karatag T, Gurbuz C, Armagan A, Caskurlu T. Initial experience of micro-percutaneous nephrolithotomy in the treatment of renal calculi in 140 renal units. Urolithiasis. 2014 Apr;42(2):159-64. doi: 10.1007/s00240-013-0631-2. Epub 2013 Dec 13.
PubMed 24337646Karatag T, Tepeler A, Buldu I, Akcay M, Tosun M, Istanbulluoglu MO, Armagan A. Is micro-percutaneous nephrolithotomy surgery technically feasible and efficient under spinal anesthesia? Urolithiasis. 2015 Jun;43(3):249-54. doi: 10.1007/s00240-015-0752-x. Epub 2015 Jan 9.
PubMed 25572955Desai J, Solanki R. Ultra-mini percutaneous nephrolithotomy (UMP): one more armamentarium. BJU Int. 2013 Nov;112(7):1046-9. doi: 10.1111/bju.12193. Epub 2013 Jul 11.
PubMed 23841665Shlipak MG, Mattes MD, Peralta CA. Update on cystatin C: incorporation into clinical practice. Am J Kidney Dis. 2013 Sep;62(3):595-603. doi: 10.1053/j.ajkd.2013.03.027. Epub 2013 May 20.
PubMed 23701892Delanaye P, Cavalier E, Morel J, Mehdi M, Maillard N, Claisse G, Lambermont B, Dubois BE, Damas P, Krzesinski JM, Lautrette A, Mariat C. Detection of decreased glomerular filtration rate in intensive care units: serum cystatin C versus serum creatinine. BMC Nephrol. 2014 Jan 13;15:9. doi: 10.1186/1471-2369-15-9.
PubMed 24410757Krawczeski CD, Vandevoorde RG, Kathman T, Bennett MR, Woo JG, Wang Y, Griffiths RE, Devarajan P. Serum cystatin C is an early predictive biomarker of acute kidney injury after pediatric cardiopulmonary bypass. Clin J Am Soc Nephrol. 2010 Sep;5(9):1552-7. doi: 10.2215/CJN.02040310. Epub 2010 Jun 10.
PubMed 20538834
Study at a glance
From the registry record, last updated by the sponsor on 18 Nov 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Success Rates, Complication Rates and Injury to Kidneys of Ultra-mini PCNL and Micro PCNL in the Treatment of Kidney Stones
- ClinicalTrials.gov ID
- NCT02522689
- Acronym / sponsor ID
- SU-PCNL-UMMP-02
- Conditions
- Kidney Stones
- Keywords
- kidney stone, percutaneous nephrolithotripsy, ultra-mini PCNL, micro PCNL
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 60 participants (estimated)
- Lead sponsor
- Selcuk UniversityUniversity, hospital or other
- Collaborators
- The Scientific and Technological Research Council of Turkey
- Study start
- 8 Oct 2019 (actual)
- Primary completion
- Jul 2021 (estimated)
- Study completion
- Sep 2021 (estimated)
- First posted
- 13 Aug 2015 (estimated)
- 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.
It is aimed to evaluate the treatment results, rates of success and complications, and injury given to the kidney by measuring preoperative and postoperative blood and Cystatin C levels in patients with kidney stones smaller than 2 cm who will undergo either ultra-mini percutaneous nephrolithotripsy (PCNL) or micro PCNL.
Detailed description
In this study, the demographic and preoperative data, imaging data, operative data and postoperative follow-up data will be prospectively recorded according to the patient information forms for the patients with kidney stone smaller than 2 cm who will undergo either ultra-mini PCNL or micro PCNL.
A total of 60 (sixty) patients, aging between 18 and 65 years, with similar stone size and location are being planned to be enrolled into the study; and will be prospectively randomized into two groups with a 1:1 ratio, thus 30 (thirty) patients will receive ultra-mini PCNL while 30 (thirty) patients will undergo micro PCNL.
Preoperatively, blood and urine Cystatin C levels will be measured. After the surgery, blood and urine Cystatin C levels at postoperative 12th hour will be recorded. Besides these, classical kidney function tests, namely blood urea and creatinine levels, will be measured preoperatively and postoperatively.
Parameters listed below will be also recorded and evaluated:
- Preoperative general evaluation data: Age, height, weight, body-mass index, concomitant comorbidities, prescriptions used, history of operation(s), American Society of Anesthesiologists (ASA) score
- Preoperative urological evaluation data: History of extracorporeal shock wave lithotripsy (ESWL)/PCNL/ureterorenoscopy (URS)/retrograde intrarenal surgery (RIRS)/open surgery, whole blood count, kidney function tests, automatic urine test, urine culture, preoperative imaging modality (KUB, US, CT), number-dimensions-localization-composition of stone(s), existence of hydronephrosis
- Operative data: Access fluoroscopy duration, total access duration, total fluoroscopy duration, operation duration, use of double-J stent, preoperative complications
- Number of previous ESWL seance, total duration of ESWL, number of shots during ESWL (if any)
- Follow-up data: Urethral catheterization time, hospitalization time, need of any other treatment for being stone-free, time to full stone-free, duration to removal of double-J stent, existence of residual stone(s), formation of new stone(s), complications in late period
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Ultra-mini PCNL | Active comparator | Procedure: Endoscopic kidney stone surgeryEndoscopic kidney stone surgery: Patients will undergo ultra-mini percutaneous nephrolithotripsy. |
| Micro PCNL | Active comparator | Procedure: Endoscopic kidney stone surgeryEndoscopic kidney stone surgery: Patients will undergo micro percutaneous nephrolithotripsy. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients who are planned to undergo PCNL due to kidney stone
- Patients with a kidney stone < 2 cm
- Patients between 18 and 65 years old
Key exclusion criteria (13 listed)
- Patients with unregulated diabetes mellitus and diabetic nephropathy
- Patients with a blood pressure higher than 140/80 mmHg despite use of antihypertensive drug(s) regularly
- Patients with chronic renal failure who need dialysis
- Patients who had prerenal, renal or postrenal acute kidney failure during the last 6 months
- Patients who had acute pyelonephritis during the last 6 months
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 |
|---|---|---|
| Endoscopic kidney stone surgeryUltra-mini PCNL will be performed. | Procedure or surgery | Ultra-mini PCNL |
| Endoscopic kidney stone surgeryMicro PCNL will be performed. | Procedure or surgery | Micro PCNL |
Primary outcome
Stone-free rate
Time frame: Within the first 30 days after surgery.
Determination of any residual stone in the collecting system by using one of imaging modalities.
3 secondary outcomes
Complication rate
Time frame: Within the first 30 days after surgery.
Blood Cystatin C level (mg/L)
Time frame: Within the first 12 hours after surgery.
Urine Cystatin C level (mg/L)
Time frame: Within the first 12 hours after surgery.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Nov 2019.
- Background: PubMed 21247286de la Rosette J, Assimos D, Desai M, Gutierrez J, Lingeman J, Scarpa R, Tefekli A; CROES PCNL Study Group. The Clinical Research Office of the Endourological Society Percutaneous Nephrolithotomy Global Study: indications, complications, and outcomes in 5803 patients. J Endourol. 2011 Jan;25(1):11-7. doi: 10.1089/end.2010.0424.
- Background: PubMed 24177788Xu S, Shi H, Zhu J, Wang Y, Cao Y, Li K, Wang Y, Sun Z, Xia S. A prospective comparative study of haemodynamic, electrolyte, and metabolic changes during percutaneous nephrolithotomy and minimally invasive percutaneous nephrolithotomy. World J Urol. 2014 Oct;32(5):1275-80. doi: 10.1007/s00345-013-1204-2. Epub 2013 Nov 1.
- Background: PubMed 23958507Wong KA, Sahai A, Patel A, Thomas K, Bultitude M, Glass J. Is percutaneous nephrolithotomy in solitary kidneys safe? Urology. 2013 Nov;82(5):1013-6. doi: 10.1016/j.urology.2013.06.034. Epub 2013 Aug 16.
- Background: PubMed 25100624Kamphuis GM, Baard J, Westendarp M, de la Rosette JJ. Lessons learned from the CROES percutaneous nephrolithotomy global study. World J Urol. 2015 Feb;33(2):223-33. doi: 10.1007/s00345-014-1367-5. Epub 2014 Aug 7.
- Background: PubMed 25064687De S, Autorino R, Kim FJ, Zargar H, Laydner H, Balsamo R, Torricelli FC, Di Palma C, Molina WR, Monga M, De Sio M. Percutaneous nephrolithotomy versus retrograde intrarenal surgery: a systematic review and meta-analysis. Eur Urol. 2015 Jan;67(1):125-137. doi: 10.1016/j.eururo.2014.07.003. Epub 2014 Jul 23.
- Background: PubMed 21477921Bader MJ, Gratzke C, Seitz M, Sharma R, Stief CG, Desai M. The "all-seeing needle": initial results of an optical puncture system confirming access in percutaneous nephrolithotomy. Eur Urol. 2011 Jun;59(6):1054-9. doi: 10.1016/j.eururo.2011.03.026. Epub 2011 Apr 1.
- Background: PubMed 21575966Desai MR, Sharma R, Mishra S, Sabnis RB, Stief C, Bader M. Single-step percutaneous nephrolithotomy (microperc): the initial clinical report. J Urol. 2011 Jul;186(1):140-5. doi: 10.1016/j.juro.2011.03.029. Epub 2011 May 14.
- Background: PubMed 24337646Hatipoglu NK, Tepeler A, Buldu I, Atis G, Bodakci MN, Sancaktutar AA, Silay MS, Daggulli M, Istanbulluoglu MO, Karatag T, Gurbuz C, Armagan A, Caskurlu T. Initial experience of micro-percutaneous nephrolithotomy in the treatment of renal calculi in 140 renal units. Urolithiasis. 2014 Apr;42(2):159-64. doi: 10.1007/s00240-013-0631-2. Epub 2013 Dec 13.
- Background: PubMed 25572955Karatag T, Tepeler A, Buldu I, Akcay M, Tosun M, Istanbulluoglu MO, Armagan A. Is micro-percutaneous nephrolithotomy surgery technically feasible and efficient under spinal anesthesia? Urolithiasis. 2015 Jun;43(3):249-54. doi: 10.1007/s00240-015-0752-x. Epub 2015 Jan 9.
- Background: PubMed 23841665Desai J, Solanki R. Ultra-mini percutaneous nephrolithotomy (UMP): one more armamentarium. BJU Int. 2013 Nov;112(7):1046-9. doi: 10.1111/bju.12193. Epub 2013 Jul 11.
- Background: PubMed 23701892Shlipak MG, Mattes MD, Peralta CA. Update on cystatin C: incorporation into clinical practice. Am J Kidney Dis. 2013 Sep;62(3):595-603. doi: 10.1053/j.ajkd.2013.03.027. Epub 2013 May 20.
- Background: PubMed 24410757Delanaye P, Cavalier E, Morel J, Mehdi M, Maillard N, Claisse G, Lambermont B, Dubois BE, Damas P, Krzesinski JM, Lautrette A, Mariat C. Detection of decreased glomerular filtration rate in intensive care units: serum cystatin C versus serum creatinine. BMC Nephrol. 2014 Jan 13;15:9. doi: 10.1186/1471-2369-15-9.
- Individual participant dataSharing planned: No
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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. This study is not recruiting at the moment.
Ozcan Kilic, M.D. principal investigator
Selcuk University, School of Medicine, Department of Urology
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Endoscopic kidney stone surgery in people with Kidney Stones, run by Selcuk University at 1 site in Turkey (Türkiye).
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 3 inclusion and 13 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: status not confirmed, as of the sponsor's last update on 18 Nov 2019. 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 Turkey (Türkiye). 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Ozcan Kilic, M.D. (+905074196189, drozcankilic@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Stone-free rate (time frame: Within the first 30 days after surgery.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02522689, which also lists 13 linked publications.
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 18 Nov 2019.