for people ages 45-79 (full criteria)
at San Francisco, California and other locations
study started
estimated completion



Insights into the cause of kidney failure have emerged from research, but less is known about the epidemiology of less severe forms of kidney disease known both as chronic kidney disease (CKD) or chronic renal insufficiency (CRI). The Chronic Renal Insufficiency Cohort (CRIC) Study was established to study the consequences of CKD with a particular focus on cardiovascular illness like myocardial infarction (heart attack) and stroke. The CRIC Study will identify high-risk subgroups of individuals with CRI, informing future treatment trials, and development of preventive therapies. CRIC is an observational study that to date, over 5000 participants have been enrolled in the CRIC cohort. The goal for CRIC 2018 which began in July 2018 is to follow participants for an additional 5 years. To maximize the opportunities inherent in this unique scientific resource, the CRIC Study will, in its next phase, pursue a multifaceted strategy involving: (a) continued follow-up of the cohort and investigation of a broad array of factors associated with the progression and consequences of CKD utilizing state-of-the-art methods in biostatistics and bioinformatics; and (b) the use of novel remote data collection techniques to identify trajectories of kidney function and cardiovascular risk sub-phenotypes.

Official Title

Prospective Cohort Study of Chronic Renal Insufficiency


Previously enrolled participants who reconsent to the next phase. CRIC 2018, will be enrolled in this observational study. Participants will remain under the care of their usual physicians. Questionnaires will be completed and tests will be conducted that will provide information about aspects of kidney and heart health status.

Participants who reconsent to this phase will return to the center for a more extensive visit. At the Clinic Visit the following will occur:

  • weight is measured
  • blood pressure and heart rate are recorded
  • information about medical history and medication used recently
  • blood draw (about ½ cup) for the following tests: CBC (Complete Blood Count), tests of metabolism, and several other heart and kidney tests
  • blood pressure in the leg and arm calculated as the Ankle Brachial Index (ABI)
  • urine sample collection for kidney function testing
  • complete questionnaires about quality of life, diet, mood, thought processes and physical activity

This visit takes about 1 to 2 hours. Participants will be contacted by telephone six months after the Baseline Visit to ask about recent medical events and medications.

Participants will be asked to return to the center for annual visits during which many but not all of the procedures described above will be conducted.

Additionally, up to 1500 CRIC participants will be asked to participate in one of two substudies using remote data collection techniques to identify trajectories of kidney function and cardiovascular risk sub-phenotypes.


Renal Insufficiency, Chronic Renal Insufficiency Chronic Renal Insufficiency CRIC Subcohort


You can join if…

Open to people ages 45-79

During the screening visit a blood sample will be tested to indirectly check kidney function based on the serum creatinine level:

  • Age Range: 45 - 79 years
  • Estimated Glomerular Filtration Rate (GFR): 45 - 70 mL/min/1.73m²
  • Proteinuria: varies dependent on eGRF

You CAN'T join if...

  • Unable or unwilling to provide informed consent
  • Previously received dialysis (peritoneal and/or hemodialysis) lasting more than one month
  • Prior organ or bone marrow transplant
  • Prior renal transplant
  • Received immunosuppressive or other immunotherapy for primary renal disease or systemic vasculitis that affects the kidneys (i.e., anti-GCM, ANCA, SLE, IgA nephropathy, cryoglobulin, etc.) within the past six months before enrollment
  • Received chemotherapy or alkylating agents for systemic cancer
  • Known cirrhosis
  • NYHA Class III or IV heart failure at baseline
  • Previous diagnosis of multiple myeloma or renal carcinoma
  • Previously diagnosed polycystic kidney disease
  • Known HIV infection and/or AIDS
  • Pregnant or breast-feeding women
  • Currently participating in an interventional clinical trial (i.e., primarily trials of therapeutic agents that may have an effect on renal or cardiovascular outcomes).
  • Institutionalized (e.g., prisoner, nursing home resident, skilled nursing facility resident)
  • Appears unlikely or unable to participate in the required study procedures as assessed by the investigator, study coordinator or designee.


  • University of California
    San Francisco California 94143-0532 United States
  • Kaiser Permanente of Northern California
    Oakland California 94612 United States


in progress, not accepting new patients
Start Date
Completion Date
University of Pennsylvania
Link to the CRIC Study Website
The CRIC Study website has a section of general information about the study and kidney disease for members of the general public who may be interested. It includes a brief description of the study and the 13 participating clinical centers.
Study Type
Last Updated