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Search for New Methods to Detect Acute Renal Failure

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. Identifier: NCT00026702
Recruitment Status : Recruiting
First Posted : November 15, 2001
Last Update Posted : July 19, 2022
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) )

Brief Summary:

The purpose of this study is to find substances in the blood and urine that indicate that a person has kidney damage. It will identify proteins found only in patients with acute kidney failure but not in normal healthy people or in patients with volume depletion.

Adults and children who are at least 3 years old who fall into one of the following four categories may be eligible for this study:

  1. Are healthy and have normal kidney function
  2. Have volume depletion (this condition differs from acute kidney failure in that it is easily treated with fluids)
  3. Are at high risk of kidney failure
  4. Have acute kidney failure (kidney shutdown)

All study participants will have a history and physical examination. Up to four blood samples of 3 tablespoons each will be taken for laboratory analysis. Urine will be collected for analysis and to measure urine output. The participants length of stay in the study varies. People with normal kidney function will be in the study for 1 day and patients with volume depletion will be studied 3 days. The length of hospitalization of patients at high risk of kidney failure or in acute kidney failure will depend on the patient s condition and medication requirements.

The results of this study may lead to the development of earlier and more accurate methods for diagnosing acute kidney failure. With earlier detection, treatment could be started earlier, possibly preventing further damage and helping recovery of injury that has already occurred.

Condition or disease
Kidney Disease Kidney Failure Kidney Failure, Chronic Healthy Volunteers Renal Tubular Toxicity

Detailed Description:

The mortality of acute renal failure (ARF) remains high despite advances in supportive care. There are no established effective drug therapies, and dialysis may promote renal injury via hypotension or neutrophil activation. Many agents [e.g., mannitol, furosemide, dopamine, Atrial Natriuretic Peptide (ANP), Insulin-like Growth Factor (IGF-1), thyroid hormone, etc.] are effective in animal models but ineffective in treating or preventing human ARF. The failure of these agents in human ARF may be due to late enrollment into the trial; effective therapy will likely require earlier detection.

The objective of this clinical study is to identify new biomarkers of renal injury, progression or recovery by analyzing urinary proteins during ARF. We will enroll patients with ARF, patients at high risk of ARF, patients with volume depletion, patients with urinary tract infection, patients with chronic kidney disease, and normal subjects. The diagnosis of pre-renal versus renal ARF will be made by routine clinical and laboratory testing. The level of renal dysfunction will be determined by creatinine clearance. Those patients at high risk for ARF will be followed prospectively and will undergo additional testing if ARF does develop. Patients will also be studied after creatinine levels return to normal. We will identify protein and/or microRNA biomarkers that are unique to patients with ARF,but not found in normal subjects or patients with volume depletion. It is hoped that some of these proteins may form the basis of new diagnostic tests for ARF.

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Study Type : Observational
Estimated Enrollment : 640 participants
Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Search for Novel Methods to Detect Acute Renal Failure
Actual Study Start Date : June 7, 2000

Subjects at least three years old

Primary Outcome Measures :
  1. estimated GFR [ Time Frame: at the time of sample collection ]
    Serum creatinine will be measured and eGFR will be calculated

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   3 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
subjects with and without kidney disease, can include vulnerable populations such as pregnant women, cognitively impaired adults, or NIH employees

    1. Subjects >= 3 years old. Both male and female subjects will be recruited without regard to race or ethnic origin.
    2. Either:

      1. Normal (creatinine level < 1.3 mg/dl for adults; creatinine level < standard nomogram for children), OR
      2. Oliguria due to volume depletion (indicated by oliguria and Fractional Excretion of Sodium (FENa) of less than 1%), OR
      3. High risk of ARF, including surgery, transplantation, nephrotoxic antibiotics, or bone marrow transplant. OR
      4. Evidence of ARF as defined by an acute progressive rise in serum creatinine (at least 50% increase within 24 hours preceding enrollment) without stabilization or recovery, despite optimization of hemodynamic fluid status and correction of any known pharmacologic, pre-renal, or post-renal etiologic factors. OR
      5. Urinary tract infection (to serve as control for ARF studies), OR
      6. Established chronic kidney disease (to serve as control for ARF studies).


  1. Minors who do not give clear assent, even with parental consent
  2. Existence of any other condition which would complicate the implementation or interpretation of the study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00026702

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Contact: Peter S Yuen, Ph.D. (301) 402-6702
Contact: Robert A Star, M.D. (301) 496-6325

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United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact Office of Patient Recruitment (OPR)    800-411-1222 ext TTY8664111010   
Sponsors and Collaborators
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
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Principal Investigator: Robert A Star, M.D. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Additional Information:
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Responsible Party: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Identifier: NCT00026702    
Other Study ID Numbers: 000107
First Posted: November 15, 2001    Key Record Dates
Last Update Posted: July 19, 2022
Last Verified: April 8, 2022

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by National Institutes of Health Clinical Center (CC) ( National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) ):
Acute Kidney Injury
Additional relevant MeSH terms:
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Kidney Diseases
Renal Insufficiency
Acute Kidney Injury
Kidney Failure, Chronic
Urologic Diseases
Renal Insufficiency, Chronic