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ALLOGRAFT, A Study to Evaluate the Renal Protective Effects of Losartan (0954-222)(COMPLETED)

A Double-Blind, Randomized, Placebo Controlled Study to Evaluate the Renal Protective Effects of Losartan in Patients With Renal Transplant

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00140907
Enrollment
367
Registered
2005-09-01
Start date
2000-03-14
Completion date
2005-01-01
Last updated
2024-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

High Blood Pressure

Brief summary

To demonstrate that losartan (+ conventional therapy) compared to placebo (+ conventional therapy) will reduce the number of RT patients who experience histological lesions of chronic allograft nephropathy

Interventions

DRUGlosartan potassium

25 mg of oral losartan once daily, with an up-titration to 50 mg of losartan once daily in later visits if serum creatinine did not increase more than 25%. Patients take medication in the morning.

DRUGComparator: Placebo

25 mg of oral placebo once daily, with an up-titration to 50 mg placebo once daily in later visits if serum creatinine did not increase more than 25%. Patients take medication in the morning.

Sponsors

Organon and Co
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients With End Stage Chronic Renal Failure, Four To Eight Week After Receiving A First Or A Second Renal Transplant From A Dead Donor. In The Case Of A Second Transplant The Survival Of The First Graft Must Has Been 6 Month Or More * Patients Must Have A Serum Creatinine \* 2 At Visit 1 And 2. Results Must Be Within 25% Of Each Other. The Baseline Period May Be Extended Until Four More Weeks To Obtain An Additional Serum Creatinine If One Of The First Two Serum Creatinine Results Do Not Qualify * Patients With Hypertension Must Have A Sitting Blood Pressure \< 200/110 Mmhg At The Time Of Randomization * Normotensive Patients Must Have A Sitting Systolic Blood Pressure \>100 Mmhg At The Time Of Randomization

Exclusion criteria

* Hyperimmunized Patients At The Transplant Time Or In The Previous 6 Month, With A Pra of 50 % * Patients With Evidence Of Advanced Liver Disease * Serum Potassium \<3.5 Or \>5.5 Meq/L * History Of Allergy To Losartan * Other Factors Which May Affect Participation (E.G., Significant Concurrent Or Life Limiting Disease Such As Cancer In The Last Five Year Except Skin Neoplasias, Mental Or Legal Incapacitation, Drug Or Alcohol Abuse Within The Last 2 Years, Extensive Travel Planned In The Next 3 Years, Investigative Drug Trial Within The Last 4 Weeks) * Patients With Disseminated Or Localized Active Infectious Disease, At The Time Of Transplant * Acute Graft Rejection In The Grade III Of Banff Classification * Patients With Double-Transplant (Reno-Pancreatic) * Patients With Heart Failure Or History Of Myocardial Infarction Requiring Ace Inhibitor Or Aiia Therapies. Presence Or Known History Of Hemodynamically Significant Obstructive Valvular Disease Or Hypertrophic Cardiomyopathy * Renal Graft Artery Stenosis. An Eco-Doppler Test Must Be Performed In Order To Exclude A Graft Artery Stenosis * Pregnant Or Nursing Women * Chronic Use Of Nsaids * Major Psychotropic Agents Such As Phenothiazines Are Not Permitted, Use Of Lithium Is Not Permitted

Design outcomes

Primary

MeasureTime frame
Incidence of chronic allograft nephropathy24 months post treatment

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026