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Study Evaluating Patients With Cystinuria and Efficacy and Safety Exploratory Study in the Youngest Children

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04147871
Recruitment Status : Recruiting
First Posted : November 1, 2019
Last Update Posted : November 1, 2019
Sponsor:
Information provided by (Responsible Party):
Advicenne Pharma

Tracking Information
First Submitted Date  ICMJE October 23, 2019
First Posted Date  ICMJE November 1, 2019
Last Update Posted Date November 1, 2019
Actual Study Start Date  ICMJE February 1, 2019
Estimated Primary Completion Date August 1, 2020   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: October 30, 2019)
Percentage of urinary pH values ≥ 7.0 during 24h on Day 7 (after ADV7103 treatment period) [ Time Frame: 24 hours ]
The primary endpoint is the comparison between the probability of having an urinary PH ≥ 7.0 based on all urinations during Day 7 in an ADV7103 dose versus the probability in the placebo group. All urinations on Day 7 with an evaluable pH measure will be included in the analysis. The study will be declared positive if the chance of having pH value ≥ 7.0 at each urination on D7 is superior with at least one ADV7103 treatment group than with placebo.
Original Primary Outcome Measures  ICMJE Same as current
Change History No Changes Posted
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Study Evaluating Patients With Cystinuria and Efficacy and Safety Exploratory Study in the Youngest Children
Official Title  ICMJE A Multicentre, Randomized, Controlled Versus Placebo, Double-blinded, 4 Parallel Arms, Dose-ranging Main Study, to Evaluate the Efficacy, Safety and Tolerability and Acceptability of Repeated Doses of ADV7103, After 7 Days of Treatment, in Patients With Cystinuria, and an Efficacy and Safety Exploratory Study in the Youngest Children.
Brief Summary This is a multicentre, randomized, controlled versus placebo, double-blinded, 4 parallel arms, dose-ranging main study, to evaluate the efficacy, safety and tolerability and acceptability of repeated doses of ADV7103, after 7 days of treatment, in patients with cystinuria, and an efficacy and safety exploratory study in the youngest children.
Detailed Description

The study will target enrolling at least 15 subjects in each of the following age groups: 6 months - 5 years (B13CS part only); 6-11 years; 12-17 years and adult >18. Subjects will be in the study for up to 7 weeks.

After screening and enrollment (up to 35 days), Eligible patients will be treated will alkalinising treatment (SoC) at the well-adapted dose and regimen for 7 days. An in-patient visit is planned at the end of this period. The baseline evaluations, including urine pH and specific gravity, will be done during this inpatient visit, from Day -1 t0 to t24h. After this visit, patients are randomized in a balanced manner (1:1:1:1) to one of the 4 possible treatment arms, ADV7103 at low dose, medium dose or high dose, or ADV7103 placebo. For patients in B13CS part, a period of titration is planned before the 7 days treatment with ADV7103. No use of placebo in B13CS.

Controls of urine pH will be done at patient home with a pocket glass electrode pH-meter on fresh urines, at least twice a day: before the administration of ADV7103, in the morning at t0 and in the evening at t12h (12hrs after last ADV7103 intake and before the next dose).

Subjects will have the opportunity to subsequently enter a long-term, open label extension.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Phase 3
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Condition  ICMJE Cystinuria
Intervention  ICMJE
  • Drug: ADV7103
    Each dose of ADV7103 contains a fixed ratio of 1/3 of ADV7103-CK (potassium citrate) and 2/3 of ADV7103-BK (potassium bicarbonate) based on the mass of active substances.
  • Drug: Placebo

    Placebo is a combination of 2 mm green coated lactose granules and 2 mm white coated lactose granules.

    Each dose of placebo contains a fixed ratio of 1/3 of green granules and 2/3 of white granules.

Study Arms  ICMJE
  • Active Comparator: ADV7103 1.5 mEq/Kg/day
    Patients receive ADV7103 twice a day.
    Intervention: Drug: ADV7103
  • Active Comparator: ADV7103 3.0 mEq/Kg/day
    Patients receive ADV7103 twice a day.
    Intervention: Drug: ADV7103
  • Active Comparator: ADV7103 4.5 mEq/Kg/day
    Patients receive ADV7103 twice a day.
    Intervention: Drug: ADV7103
  • Placebo Comparator: Placebo
    Patients receive placebo twice a day.
    Intervention: Drug: Placebo
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Recruiting
Estimated Enrollment  ICMJE
 (submitted: October 30, 2019)
72
Original Estimated Enrollment  ICMJE Same as current
Estimated Study Completion Date  ICMJE August 1, 2020
Estimated Primary Completion Date August 1, 2020   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • 1. Patient who has a diagnosis of cystinuria based on medical diagnosis (at least one previous orcurrent episode of calculus of cystine, and/or one previous or current episode of cystine crystalluria) or on genetic diagnosis (only for patients enrolled in B13CS study).

    2. Patient treated with an alkalising treatment at a well-adapted dose (defined as a daily dose deemed by the investigator aiming to maintain overtime urinary pH value ≥ 7.0 and/or compatible with an acceptable safety profile and/or patient's constraints or compliance).

    3. Patient who, when treated with a second line therapy (chelator agent), presents a disease status enabling interruption of the chelator agent during the course of the B12CS-B13CS research.

    4. Patient male or female, including child aged between 6 months and 17 years old and adult aged ≥ 18 years old up to 70 years old.

    5. For female patient of childbearing potential (defined by CTFG as fertile, following menarche until becoming post-menopausal unless permanently sterile*) a highly effective birth control method should be used until the end of study plus 36 hours after the last dose of IMP.

    6. Patient and/or parents or legal representative(s) who is(are) willing and able to participate in the study, to understand and to comply with study procedures for the entire length of the study.

    7. Patient or parents or legal representative(s) who has/have provided a signed written informed consent.

    8. Patient of ≤17 years of age for whom the assent has been collected or has been tried to be collected.

    9. Patient who is affiliated to a social health insurance system and/or in compliance with the recommendations of the national law in force relating to biomedical research.

Exclusion Criteria:

  • 1. Patient treated with the second line therapy and who cannot stop cystine chelating agents (sulfhydryl compounds) during the B12CS-B13CS study.

    2. Patient who presents kalaemia > 5.0 mmol/L. 3. Patient who presents a moderate or severe renal impairment (estimated glomerular filtration rate (eGFR) < 45 mL/min/1.73 m2 according to Schwartz formula for the children and both MDRDs and CKD-EPI for adults).

    4. Patient who presents - barring the study disease - any previous or concurrent medical condition or any laboratory or clinical findings or any other condition that in the opinion of the investigator would be negatively affected by the study product or that would affect the study product or that precludes his participation, e.g. uncontrolled diabetes mellitus, adrenal insufficiency, cardiac impairment, repeated infections, metabolic alkalosis, chronic diarrhoea.

    5. Female patient who is pregnant or breast-feeding. 6. Patient who cannot stop potassium sparing diuretics (e.g. antagonists of aldosterone as such spironolactone, canrenoate and eplerenone, amiloride, triamterene), angiotensin converting enzyme inhibitors, angiotensin II receptor antagonists, tacrolimus, potassium desodic salts.

    7. Patient who received any medication that could interfere with the study treatment within 4 weeks before the inclusion in the study, including angiotensin converting enzyme inhibitors, angiotensin II receptor antagonists, tacrolimus, ciclosporine, potassium desodic salts,antibiotics.

    8. Patient who received potassium sparing diuretics 6 weeks before the inclusion in the study.

    9. Patient who presents contra indications to the administration of the study treatment such like known allergic reactions or hypersensitivity to the active pharmaceutical ingredients or other excipients of the formulations of the study treatment (such as lactose), history of difficult access to the oral administration route and/or conditions that may hamper compliance and/or absorption of the study treatment (e.g. any difficulty of swallowing, mal-absorption, delayed gastric emptying, oesophageal compression, intestinal obstruction or other chronic gastrointestinal disease).

    10. Patient who is admitted to hospital in emergency settings. 11. Patient who participated in a clinical trial within the last 3 months before enrolment.

    12. Patient who is at risk of non-compliance in the judgment of the investigator.

    13. Patient who could present any other condition, which in the opinion of the investigator, would preclude participation in the study.

    14. Patient who cannot be contacted in case of emergency. 15. Patient under any administrative or legal supervision.

Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 6 Months to 70 Years   (Child, Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE
Listed Location Countries  ICMJE Belgium,   France
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT04147871
Other Study ID Numbers  ICMJE B12CS-B13CS
Has Data Monitoring Committee No
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement  ICMJE
Plan to Share IPD: No
Responsible Party Advicenne Pharma
Study Sponsor  ICMJE Advicenne Pharma
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Chair: Luc-André Granier Advicenne Pharma
PRS Account Advicenne Pharma
Verification Date October 2019

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP