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Colchicine for Diabetic Nephropathy Trial

Information source: Sheba Medical Center
ClinicalTrials.gov processed this data on August 20, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Diabetic Nephropathies

Intervention: Colchicine (Drug); Placebo (Drug)

Phase: Phase 1/Phase 2

Status: Not yet recruiting

Sponsored by: Sheba Medical Center

Summary

Forty patients with diabetic nephropathy will be treated with colchicine up to 2 mg, or placebo, for 18 months. A follow up will be performed after 12 additional months. The primary outcome will be a significant reduction or stabilization of proteinuria during the 18 month treatment period.

Clinical Details

Official title: The Effect of Colchicine Treatment on the Progression of Proteinuria in Patients With Diabetic Nephropathy.

Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Primary outcome: Change of urinary protein excretion ( mg/24hrs) from baseline to 18 months.

Detailed description: Diabetic nephropathy is the leading cause today for end stage renal failure in the western world. Multifactorial intervention in patients may slow the rate of albuminuria and renal injury; however several new drug trials have failed so far to significantly attenuate its progression. Several pathways are identified in the development of diabetic nephropathy, however, in recent years many researchers suspect that inflammatory pathways play central roles in the progression of diabetic neuropathy . There is compelling evidence that diabetes

mellitus has an auto-inflammatory component with Nlrp3 inflammasome and interleukin - 1 β

activation. Colchicine is a relatively safe anti-inflammatory drug used to treat and reverse albuminuria in familial Mediterranean fever nephropathy, an auto-inflammatory disease. Data from one study demonstrated that colchicine diminished proteinuria and inflammation in experimental-diabetic animal models. Working hypothesis and aims: To assess whether colchicine reduces proteinuria in diabetic patients with diabetic neuropathy , despite maximal multi-factorial interventions (angiotensin-converting-enzyme inhibitors, tight glycemic and hypertensive control, lifestyle intervention, etc.). Methods: Forty patients with stable diabetes, and diabetic neuropathy with proteinuria of 0. 5-6g/24 hours, despite standard treatment, will receive colchicine (n=20) or placebo (n=20) for 18 months. Urinary protein and creatinine clearance will be assessed three months before the study initiation, at baseline and every three months thereafter. Blood creatinine, complete blood count, creatine phosphokinase , liver function tests, fasting Glucose Test, HbA1c, and urine protein/creatinine ratio and diabetes mellitus treatment monitoring and follow-up will be performed every three months. Oral colchicine treatment will be initiated at 1mg per day, and increased gradually to 2 mg, if gastrointestinal or musculoskeletal disturbances are absent or tolerated. The participants will be called and evaluated a year after the end of treatment for all parameters mentioned. Statistical analysis will be performed by a statistician. Expected results: A significant reduction or stabilization of proteinuria during the 18 month treatment period, or at follow up at one year later. Importance and Relevance to the call This study may define a new treatment for diabetic nephropathy.

Eligibility

Minimum age: 18 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion Criteria: 1. Patients with diabetes mellitus , age>18 years old, able to sign an informed consent. 2. Hemoglobin A1c in the range of 6-9%, stable for last year (0. 5±) 3. Blood creatinine lower than 2 mg/dL. 4. Blood pressure lower than 140/90 mmHg on stable anti-hypertensive treatment for at least 3 months. 5. Treated with ACE or angiotensin II receptor blocker , unless contraindicated Exclusion Criteria: 1. Malignancy or significant heart, lung or liver disease. 2. Any GI disease, inflammatory bowel disease , malnutrition ( BMI under 18 ) 3. Psychiatric disease 4. Any muscle disease, history of rhabdomyolysis , myopathy or myositis. 5. Any disease causing renal injury/proteinuria apart from diabetes mellitus 6. Any inflammatory or autoimmune disease 7. Any infection during the last month.

Locations and Contacts

Additional Information

Starting date: July 2015
Last updated: May 12, 2015

Page last updated: August 20, 2015

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