NCT03343275

Brief Summary

This study evaluates the effectivity in urinary pH Control and the prevention of calcification in Double J stent using a device combined with the intake of dietary supplements. Every patient will receive hygienic-dietary indications. Patients will also take one out of the three dietary supplements regarded within the study (pH Up, pH Down and Cysteine) to control the adequate pH level, always following medical indications.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
105

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2017

Shorter than P25 for not_applicable

Geographic Reach
1 country

9 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 2, 2017

Completed
15 days until next milestone

First Posted

Study publicly available on registry

November 17, 2017

Completed
26 days until next milestone

Study Start

First participant enrolled

December 13, 2017

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 9, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 9, 2018

Completed
Last Updated

July 11, 2018

Status Verified

July 1, 2018

Enrollment Period

7 months

First QC Date

November 2, 2017

Last Update Submit

July 10, 2018

Conditions

Keywords

Stent, incrustation, pH Control

Outcome Measures

Primary Outcomes (4)

  • Incrustation Score

    0 (No incrustation); 1(Sporadic incrustation less than 1-2 mm); 2 (Wide area calcifications more than 1-2 mm) ; 3 (Total obstruction)

    2 days

  • Urinary pH level

    2 times/day

  • Stent implant cause

    Medical evaluation and diagnosis leading to stent implant

    2 months

  • Self-control below values 6.2

    2 times/day

Secondary Outcomes (13)

  • Anatomic alterations on the urinary system

    2 months

  • Previous uropathic obstructive incidence

    2 months

  • Date of past stent implants

    2 months

  • pH control: Total time

    2 times/day

  • 2 hours urine analysis :Fasting

    2 hours

  • +8 more secondary outcomes

Study Arms (2)

Experimental

EXPERIMENTAL

Dietary supplement : Lit-Control® pH Down * Pharmaceutical form: capsules * Administration : oral * Dose: 3 capsules/day. • Sanitary product : Lit-Control® pH Meter * In vitro diagnosis sanitary product * Use:Urinary pH evaluation

Combination Product: Lit control pHDown

Placebo

PLACEBO COMPARATOR

Placebo: * Pharmaceutical form: capsules * Administration : oral * Dose: 3 capsules/day. • Sanitary product : Lit-Control® pH Meter * In vitro diagnosis sanitary product * Use:Urinary pH evaluation

Combination Product: Lit control pHDown

Interventions

Lit control pHDownCOMBINATION_PRODUCT

Patients within the experimental arm will receive dietary supplement Lit-control®pH Down to help them keep their urinary pH in the adequate levels, being these considered as the preventive ones to avoid stent calcification (pH\<6.2) being the 3 capsule per day indication. On the other hand, the control arm will receive a placebo product with similar organoleptic qualities and the same posology characteristics. Both arms wil use Lit-Control® pH Meter device to keep self- control of the urinary pH; also, both will receive the same hygienic-dietary indications about the care of the stent.

ExperimentalPlacebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥18 years old
  • Patients which have been recently implanted a Double J stent (less than a week implant) or who have planned their implant and have been recommended with pH control to avoid incrustation/calcification.
  • Patients who accept their participation in the study and give their informed consent

You may not qualify if:

  • Patients with base pathologies wich , based on clinical criteria, aren´t sensitive about the study dietary supplement indications.
  • Patients which have programmed the stent extraction 3 weeks before base visit.
  • Uric and cystinuric patients which requires pH control different from the established study protocol .

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Hospital Universitario de Valme

Seville, Andalusia, Spain

Location

Hospital Universitari de Bellvitge

L'Hospitalet de Llobregat, Barcelona, Spain

Location

Complejo Hospitalario Universitario de Santiago de Compostela

Santiago de Compostela, Galicia, 15706, Spain

Location

Hospital Álvaro Cunqueiro

Vigo, Pontevedra, 36312, Spain

Location

Fundació Puigvert

Barcelona, 08025, Spain

Location

Hospital Clínico Universitario San Cecilio

Granada, 18012, Spain

Location

Hospital Universitario La Paz

Madrid, 28046, Spain

Location

Hospital Universitari i Politècnic La Fe

Valencia, 46026, Spain

Location

Hospital Universitario Rio Hortega

Valladolid, 47012, Spain

Location

Related Publications (1)

  • Torrecilla C, Fernandez-Concha J, Cansino JR, Mainez JA, Amon JH, Costas S, Angerri O, Emiliani E, Arrabal Martin MA, Arrabal Polo MA, Garcia A, Reina MC, Sanchez JF, Budia A, Perez-Fentes D, Grases F, Costa-Bauza A, Cune J. Reduction of ureteral stent encrustation by modulating the urine pH and inhibiting the crystal film with a new oral composition: a multicenter, placebo controlled, double blind, randomized clinical trial. BMC Urol. 2020 Jun 5;20(1):65. doi: 10.1186/s12894-020-00633-2.

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Adults attending urology/nephrology consultation whom have been recently implanted a double J stent or have its implantation programmed and are able of taking care in urinary pH self-control.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 2, 2017

First Posted

November 17, 2017

Study Start

December 13, 2017

Primary Completion

July 9, 2018

Study Completion

July 9, 2018

Last Updated

July 11, 2018

Record last verified: 2018-07

Locations