Effect Camostat for Kidney Protection in Chronic Kidney Disease

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorOdense University Hospital

About this trial

This clinical trial aims to evaluate the effects of Camostat Mesylate, a serine protease inhibitor, in patients with chronic kidney disease (CKD) and proteinuria. Proteinuria accelerates CKD progression and increases cardiovascular risks. By inhibiting serine protease activity and tubular complement activation, camostat may mitigate progressive kidney injury, potentially improving clinical outcomes.

This is an interventional, non-randomized, open-label pharmacodynamic trial that includes CKD patients with proteinuria and healthy controls. This approach has been chosen as the trial serves as a pilot study, aiming to investigate a novel treatment target in CKD patients. Including healthy controls allows a comparison of the effect of Camostat Mesilate on normal physiology versus CKD with proteinuria.

Participants will:

* Follow a standardized sodium diet of 150 mmol/day for 8 days. * Receive oral Camostat Mesilate (200 mg thrice daily) for four days (day 5-8 on the diet). * Provide blood and urine samples, record blood pressure, and undergo body composition measurements at baseline, during intervention, and at study completion.

The primary effect parameters are urine sodium and water excretion, body water content/weight, and home blood pressure. Secondary endpoints are tubular complement activation, urine protease activity, ENaC activation, 24-hour urine albumin excretion, and plasma concentrations of renin, angiotensin II, aldosterone, and NT-proBNP.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Age ≥ 18 years.

eGFR ≥ 30 ml/min/1.73m2

U-ACR ≥ 300 mg/g.

Stable antihypertensive treatment 2 weeks before start of investigated medical drug (IMP) and maintain this treatment throughout the study.

Disqualifiers

Treatment with Amiloride, Spironolactone, Aldosterone, or analogues.

Treatment with NSAIDs.

Hyperkalemia > 5.0 mmol/L at screening.

P-bilirubin > 25 umol/L at screening.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Camostat Mesylate

    Drug

    Oral Camostat Mesylate 200 mg x 3 daily for 4 days.

Treatment groups

40 Participants
are divided into 2 treatment groups
Group A: Chronic Kidney Disease patientsExperimental treatment 1 intervention
Group B: Healthy ControlsExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

24 h Urine sodium excretion (mmol/day)

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).
2

Water excretion (L)

24 h urine collection

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).
3

Total Body Water (L)

Measured by Body Composition Monistor

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).
4

Home blood pressure

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).

Secondary outcomes

1

Urine protease activity: zymography + protease activity

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).
2

Tubular complement activation

Urine C3a, MAC-sC5b-9, C3dg, MBL

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).
3

Urine microvesicles: gammaENaC cleavage

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).
4

Urine microvesicles: complement deposition

Time frame
At baseline (day 0), before treatment with IMP (day 5), and after completion of 4 days treatment with IMP (day 9).

Other outcomes

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