CClinicalTrials.gg
CompletedNCT04695951Updated Jan 6, 2021

Efficacy and Safety of Renalof® in the Removal of Calculi Smaller Than 10 mm Located in the Reno-Ureteral Tract

A Phase 2 interventional study of Renalof and Placebo in Renal Injury, Kidney Injury and Kidney Calculi, sponsored by Catalysis SL. Completed at 1 site in Nicaragua. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-01-06.

Sponsored by Catalysis SL · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled Aug 2019, registered Dec 2020).
Phase
Phase 2
Study type
Interventional
Enrollment
155
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Given the high recurrence of urolithiasis in patients, the search for less aggressive and preventive treatments is increasingly necessary. Renalof® is presented as an alternative to herbal medicine being a product that, due to its diuretic and demineralization properties of kidney stones, has been widely used in this patient population, disintegrating and eliminating calcium oxalate and struvite stones in a painless in the genitourinary system.

With the objective of determining the efficacy of this therapy, an observational, prospective, randomized, single-blind, two-arm study was carried out: treatment group with Renalof® and control group, placebo.

Read the detailed description

Given the high recurrence of urolithiasis in patients, the search for less aggressive and preventive treatments is increasingly necessary. Renalof® is presented as an alternative to herbal medicine being a product that, due to its diuretic and demineralization properties of kidney stones, has been widely used in this patient population, disintegrating and eliminating calcium oxalate and struvite stones in a painless in the genitourinary system.

With the objective of determining the efficacy of this therapy, an observational, prospective, randomized, single-blind, two-arm study was carried out: treatment group with Renalof® and control group, placebo.

The treatment group consists of 120 patients over 18 years of age, of both sexes, with a diagnosis of urolithiasis less than 10 mm in diameter, present throughout the entire reno-uretero-bladder path, diagnosed by ultrasound, renal CT and urography . The Renalof® product was administered at a dose of 650 mg daily for 3 months and the presence of stones in any location of the reno-ureteral tract was evaluated using one of the diagnostic means mentioned in monthly consultations. The second group, treated with placebo corresponding to 35 people constituting 30% of the universe. The study period was from August 2019 to July 2020 at the Hospital Escuela Antonio Lenin Fonseca and the Seniors clinic, in the city of Managua, Nicaragua.

02

Conditions studied

  • Renal Injury
  • Kidney Injury
  • Kidney Calculi
  • Ureteral Obstruction
  • Ureteral Calculi
  • Renal Stone
  • Ureteral Injury
  • Renal Disease
  • Urolithiasis, Calcium Oxalate
  • Urolithiasis; Lower Urinary Tract
  • Urolithiasis

Keywords

  • Urolithiasis
  • Kidney Stone
  • Agropyron Repens
  • Ureteral calculi
  • Calcium oxalate
03

In context

Urolithiasis

278 studies on the registry are indexed under Urolithiasis; 70 are open to participants now.

This study's enrollment of 155 is above the median of 100 across 197 interventional studies indexed under Urolithiasis.

Browse Urolithiasis studies →

Lead sponsor

Catalysis SL is the lead sponsor of 52 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Patient over 18 years of age, in all their mental and physical capacities to decide to be part of this study.
  2. There are no comorbidities or associated diseases that put the stability of the patient at risk.
  3. Not be diagnosed as Chronic Kidney Disease, in any stage.
  4. Existence of non-obstructive stones smaller than 10 mm located in the renoureteral path.
  5. No compromise of renal viability.

Exclusion criteria

Exclusion Criteria:

  1. Patients under 18 years of age.
  2. Existence of comorbidities or associated diseases that put the stability of the patient at risk.
  3. Existence of a diagnosis of Chronic Kidney Disease, at any stage.
  4. Presence of non-obstructive or obstructive stones greater than 10 mm located in the renoureteral path.
  5. Renal viability compromise.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
155 participants (actual)

Study arms

  • Experimental
    Renalof

    A total of 120 patients treated with the study product Renalof® at a dose of 650 mg twice daily were followed for 4 months. A preliminary analysis of the types of stones present in the study patients was performed according to the main compound, using a biophysical profile by biochemical analysis and the clinical characteristics, medical history and biochemical profile of the creatinine values of the test patients. Imaging and quality of life tests were carried out during the trial to check the efficacy and possible adverse effects of the test product in patients with kidney stones.

    Dietary Supplement: Renalof

  • Placebo comparator
    Control

    A total of 35 patients treated with the study product Placebo at a dose of 650 mg twice daily were followed for 4 months. A preliminary analysis of the types of stones present in the study patients was performed according to the main compound, using a biophysical profile by biochemical analysis and the clinical characteristics, medical history and biochemical profile of the creatinine values of the test patients. Imaging and quality of life tests were carried out during the trial to check the efficacy and possible adverse effects of the test product in patients with kidney stones.

    Other: Placebo

Interventions

  • Dietary supplementRenalof

    A total of 120 patients treated with the study product Renalof® at a dose of 650 mg twice daily were followed for 4 months. A preliminary analysis of the types of stones present in the study patients was performed according to the main compound, using a biophysical profile by biochemical analysis and the clinical characteristics, medical history and biochemical profile of the creatinine values of the test patients. Imaging and quality of life tests were carried out during the trial to check the efficacy and possible adverse effects of the test product in patients with kidney stones.

  • OtherPlacebo

    A total of 35 patients treated with Placebo at a dose of 650 mg twice daily were followed for 4 months. A preliminary analysis of the types of stones present in the study patients was performed according to the main compound, using a biophysical profile by biochemical analysis and the clinical characteristics, medical history and biochemical profile of the creatinine values of the test patients. Imaging and quality of life tests were carried out during the trial to check the efficacy and possible adverse effects of the test product in patients with kidney stones.

06

What researchers measure

Primary outcomes

  1. kidney stone clearance with Renalof® treatment compared to placebo

    kidney stone clearance with Renalof® treatment compared to placebo measured by ultrasound and tomography imaging

    Time frame: 4 months

Secondary outcomes

  1. Quality of life of patients

    Quality of life was established in relation to the presence or absence of symptoms related to the disease by means of a bimonthly personal questionnaire: dysuria or burning when urinating, urinary urgency, kidney colic, difficulty in performing daily activities and periodicity of urinary infections (mild, moderate, severe, yes or no,).

    Time frame: 4 months

  2. Number of colic

    number of colic during the 4-month follow-up of treatment

    Time frame: 4 months

  3. Adverse events related with product of the trial

    Adverse effects related with the test product in patients with kidney stones, measured by means of a bimonthly personal questionnaire: nausea, vomiting, digestive pain, stomach ache... (mild, moderate, severe, yes or no,).

    Time frame: 4 months

Other outcomes

  1. Cost of treatment

    cost of treatment with the use of Renalof® compared to the usual treatments, taking into account hospitalization time due to the number of colic and recovery time due to urolithiasis

    Time frame: 4 months

07

Study locations

1 site
  • Clinica Seniors Managua
    Managua, 13035, Nicaragua
08

References and documents

Publications

  • Tsujihata M. Mechanism of calcium oxalate renal stone formation and renal tubular cell injury. Int J Urol. 2008 Feb;15(2):115-20. doi: 10.1111/j.1442-2042.2007.01953.x. PubMed 18269444 ↗
  • Johnson CM, Wilson DM, O'Fallon WM, Malek RS, Kurland LT. Renal stone epidemiology: a 25-year study in Rochester, Minnesota. Kidney Int. 1979 Nov;16(5):624-31. doi: 10.1038/ki.1979.173. PubMed 548606 ↗
  • Soucie JM, Coates RJ, McClellan W, Austin H, Thun M. Relation between geographic variability in kidney stones prevalence and risk factors for stones. Am J Epidemiol. 1996 Mar 1;143(5):487-95. doi: 10.1093/oxfordjournals.aje.a008769. PubMed 8610664 ↗
  • Wesson JA, Johnson RJ, Mazzali M, Beshensky AM, Stietz S, Giachelli C, Liaw L, Alpers CE, Couser WG, Kleinman JG, Hughes J. Osteopontin is a critical inhibitor of calcium oxalate crystal formation and retention in renal tubules. J Am Soc Nephrol. 2003 Jan;14(1):139-47. doi: 10.1097/01.asn.0000040593.93815.9d. PubMed 12506146 ↗
  • Kohri K, Yasui T, Okada A, Hirose M, Hamamoto S, Fujii Y, Niimi K, Taguchi K. Biomolecular mechanism of urinary stone formation involving osteopontin. Urol Res. 2012 Dec;40(6):623-37. doi: 10.1007/s00240-012-0514-y. Epub 2012 Nov 6. PubMed 23124115 ↗
  • Mykoniatis I, Sarafidis P, Memmos D, Anastasiadis A, Dimitriadis G, Hatzichristou D. Are endourological procedures for nephrolithiasis treatment associated with renal injury? A review of potential mechanisms and novel diagnostic indexes. Clin Kidney J. 2020 May 22;13(4):531-541. doi: 10.1093/ckj/sfaa020. eCollection 2020 Aug. PubMed 32905259 ↗
  • Grases F, Ramis M, Costa-Bauza A, March JG. Effect of Herniaria hirsuta and Agropyron repens on calcium oxalate urolithiasis risk in rats. J Ethnopharmacol. 1995 Mar;45(3):211-4. doi: 10.1016/0378-8741(94)01218-o. PubMed 7623486 ↗
  • Beydokthi SS, Sendker J, Brandt S, Hensel A. Traditionally used medicinal plants against uncomplicated urinary tract infections: Hexadecyl coumaric acid ester from the rhizomes of Agropyron repens (L.) P. Beauv. with antiadhesive activity against uropathogenic E. coli. Fitoterapia. 2017 Mar;117:22-27. doi: 10.1016/j.fitote.2016.12.010. Epub 2016 Dec 29. PubMed 28040531 ↗
  • Paslawska S, Piekos R. Studies on the optimum conditions of extraction of silicon species from plants with water. IV. Agropyron repens. Planta Med. 1976 Nov;30(3):216-22. doi: 10.1055/s-0028-1097720. No abstract available. PubMed 1005521 ↗
  • Bragadottir G, Redfors B, Ricksten SE. Mannitol increases renal blood flow and maintains filtration fraction and oxygenation in postoperative acute kidney injury: a prospective interventional study. Crit Care. 2012 Aug 17;16(4):R159. doi: 10.1186/cc11480. PubMed 22901953 ↗
  • Hagerstrom E, Lindberg L, Bentzen J, Brodbaek K, Zerahn B, Kristensen B. The Nephroprotective Effect of Mannitol in Head and Neck Cancer Patients Receiving Cisplatin Therapy. Clin Med Insights Oncol. 2019 Jan 7;13:1179554918821320. doi: 10.1177/1179554918821320. eCollection 2019. PubMed 30670924 ↗

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Sap, Icf, Csr

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 6, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04695951
Lead sponsor
Catalysis SL
Responsible party
Sponsor
First posted
Jan 6, 2021
Start date
Aug 1, 2019
Primary completion
Jul 1, 2020
Completion
Oct 1, 2020
Last update
Jan 6, 2021

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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