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NCT Number: NCT05944016

Phase 3 Clinical Trial with Dapagliflozin in Chronic Kidney Disease in Adolescents and Young Adult Patients

Recent trials have demonstrated positive renal outcomes of sodium-glucose co-transporter-2 inhibitors (SGLT2i) additive to angiotensin-converting-enzyme inhibitors (ACEis) in adult patients with diabetic and non-diabetic chronic kidney disease (CKD). These trials included no children. The hypothesis of DOUBLE PRO-TECT Alport is to demonstrate superiority of the SGLT2i dapagliflozin in preventing progression of the chronic kidney disease Alport syndrome in children and young adults at early stages of disease. Preventing the rise of albuminuria by dapagliflozin would result in a very significant delay of end-stage kidney failure (ESKF) and improved quality of life. If successful, DOUBLE PRO-TECT Alport will change the treatment recommendations for children with CKD, who have a very high unmet medical need.

Recruiting

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Key information

Age range

10 year–39 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Universitätsklinikum Heidelberg - Children, Heidelberg, Baden-Württenberg, Germany

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Key inclusion criteria:

Early stages of CKD with established diagnosis of Alport syndrome at visit 1 (screening)

  • adolescents ≥ 10 to < 18 years with albuminuria (UACR ≥ 300mg/g creatinine) AND
  • eGFR ≥ 30 ml/min/1.73 m2 OR
  • adults ≥ 18 to < 40 years with albuminuria (UACR ≥ 500mg/g creatinine) AND
  • eGFR ≥ 60 ml/min/1.73 m2
  • Molecular-genetic diagnosis or diagnosis established by kidney biopsy
  • Stable RAS blockade as background therapy.
  • Signed and dated written informed consent.

Key exclusion criteria:

  • Medical history that might limit the individual's ability to take trial treatments.
  • Treatment with any SGLT2 inhibitor or within 4 weeks prior to Visit 1.
  • eGFR<60 mL/min/1.73 m2 (CKD-EPI) or requiring dialysis or after kidney-transplantation
  • Uncontrolled arterial hypertension (blood pressure above 145/95 mmHg).
  • Known hypersensitivity or allergy to the investigational products.
  • Any previous or current alcohol or drug abuse.
  • Participation in another trial with an investigational drug ongoing.
  • Women, who are nursing or pregnant, or who are not practicing an acceptable method of birth control.

Treatment and study plan

Dapagliflozin

Drug

Dapagliflozin (standard dose 10 mg p.o. once daily)

Placebo

Drug

Placebo (standard dose p.o. once daily)

Primary outcomes

  1. Primary endpoint

    Time frame: 48 weeks

    Change from baseline urine albumin to creatinine ratio (UACR) after 48 weeks

Secondary outcomes

  1. Key secondary efficacy endpoint

    Time frame: 52 weeks

    Change from baseline estimated glomerular filtration rate (eGFR) after 52 weeks (4 weeks off treatment)

  2. Key secondary safety endpoint

    Time frame: 52 weeks

    Adverse events (including serious adverse events)

  3. Adverse events (AE) of special interest

    Time frame: 52 weeks

    (a) Ketoacidosis or symptomatic hypoglycemic event.

  4. Adverse events (AE) of special interest

    Time frame: 52 weeks

    (b) Hyperkalemia (potassium levels ≥15% of the upper normal limit)

  5. Adverse events (AE) of special interest

    Time frame: 52 weeks

    (c) Decline in eGFR of ≥ 30% relative from baseline eGFR.

Study contacts

Contact information is provided by the study sponsor or research team.

Oliver Gross, MD

CONTACT

[email protected]

+4955139 ext. 60488

Sponsors and collaborators

Lead sponsor

University Hospital Goettingen

Other

Collaborators

  • German Research Foundation

Registry information

Official study title

DOUBLE PRO-TECT Alport: a Confirmatory, Multicenter, Randomized, Double-blind, Placebo-controlled Clinical Trial to Assess the Effect of Dapagliflozin on the Progression of Chronic Kidney Disease in Adolescents and Young Adult Patients with Alport Syndrome

Acronym: DOUBLE_PROTECT

Important dates

Study start
2024
Primary completion
2026
Study completion
2026
First posted
Jul 13, 2023
Registry last updated
Dec 16, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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