Use of an Herbal Preparation to Prevent and Dissolve Kidney Stones
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| Tracking Information | |||||
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| First Received Date ICMJE | September 27, 2006 | ||||
| Last Updated Date | June 12, 2012 | ||||
| Start Date ICMJE | April 2006 | ||||
| Primary Completion Date | September 2009 (final data collection date for primary outcome measure) | ||||
| Current Primary Outcome Measures ICMJE |
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| Original Primary Outcome Measures ICMJE |
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| Change History | Complete list of historical versions of study NCT00381849 on ClinicalTrials.gov Archive Site | ||||
| Current Secondary Outcome Measures ICMJE |
Change in Stone Burden as Assessed by Radiologist at One Year [ Time Frame: Baseline, approximately 52 weeks after baseline ] [ Designated as safety issue: No ] Stone burden will be quantitated using the stone quantification protocol currently available at Mayo that quantitates kidney stones both by volume and by density measured in Agatston units. |
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| Original Secondary Outcome Measures ICMJE | Not Provided | ||||
| Current Other Outcome Measures ICMJE | Not Provided | ||||
| Original Other Outcome Measures ICMJE | Not Provided | ||||
| Descriptive Information | |||||
| Brief Title ICMJE | Use of an Herbal Preparation to Prevent and Dissolve Kidney Stones | ||||
| Official Title ICMJE | Cystone for Treatment of Nephrolithiasis | ||||
| Brief Summary | We will investigate the safety and effectiveness of a mixture of 9 east Indian herbs known as Cystone regarding their ability to dissolve existing kidney stones and prevent formation of new ones. Cystine and calcium stone formers will be recruited for a 59 week trial. The first phase of the study will be two 6 weeks periods during which each subject will receive Cystone or placebo in random order (with a one-week wash out between 6 week treatment periods). The remaining 46 weeks, each subject will receive Cystone. End points are changes in urinary chemistries and stone burden by Computerized Tomography (CT) scanning. |
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| Detailed Description | Cystone will be used in proven cystine and calcium stone forming adults who are not pregnant. Subjects must have a measurable stone by CT. The first phase is a double blind, randomized, placebo controlled cross-over of Cystone and placebo for 6 weeks each separated by a 1 week washout. Entry, 6 and 12 week 24 hour urine supersaturations or cystine, pH and sodium determinations will be collected. Then all patients enter an open label phase of 46 weeks, ensuring a 52-week total exposure to Cystone during the 59 week study. Baseline and 1 year stone quantification CT scans will be performed. End points will be changes in urine chemistry/supersaturation and stone burden. Stone burden was measured by CT, quantitatively for stone density and volume. All CT images were also reviewed in a blinded fashion by a radiologist to score each kidney as increased, no change or decreased stone burden. Statistics and Randomization: Randomization was accomplished using a table provided by the department of statistics to the study coordinator who was blinded as to whether the patients received placebo or Cystone®. Biochemical and supersaturation results were analyzed via a matched pair analysis using the JMP software package (SAS Instituted, Inc.); P values < 0.05 were deemed significant. |
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| Study Type ICMJE | Interventional | ||||
| Study Phase | Phase 1 Phase 2 |
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| Study Design ICMJE | Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Crossover Assignment Masking: Double Blind (Subject, Investigator) Primary Purpose: Treatment |
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| Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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| Recruitment Information | |||||
| Recruitment Status ICMJE | Completed | ||||
| Enrollment ICMJE | 20 | ||||
| Completion Date | June 2010 | ||||
| Primary Completion Date | September 2009 (final data collection date for primary outcome measure) | ||||
| Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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| Gender | Both | ||||
| Ages | 18 Years and older | ||||
| Accepts Healthy Volunteers | No | ||||
| Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
| Location Countries ICMJE | United States | ||||
| Administrative Information | |||||
| NCT Number ICMJE | NCT00381849 | ||||
| Other Study ID Numbers ICMJE | 2115-05, P50DK083007 | ||||
| Has Data Monitoring Committee | No | ||||
| Responsible Party | Stephen Erickson, MD, Mayo Clinic | ||||
| Study Sponsor ICMJE | Mayo Clinic | ||||
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| Investigators ICMJE |
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| Information Provided By | Mayo Clinic | ||||
| Verification Date | June 2012 | ||||
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ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
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