Study of Subclinical Viral Infection

NCT01615341 | Unknown

• 1 other identifier: R01DK088914-01A1
• Study Type: observational
• Target: 100
• Locations: 1 country
• Sites: 1

Brief Summary

Chronic allograft injury is the leading cause of graft loss in renal transplantation. The shortage of available kidneys for transplantation has reached crisis levels with increasing numbers of waiting list mortalities. Strategies to prolong graft survival are urgently needed. The pediatric and young adult transplant population is one in which repeat transplantation is inevitable and therefore, this group is one who will especially benefit from intervention to prolong graft survival. The hypothesis of this proposal is that subclinical viral infection is a modifiable risk factor in the pathogenesis of chronic allograft injury. The young age of the proposed study population is an ideal one to evaluate this objective due to the high prevalence of seronegative recipients. The studies outlined will determine the temporal relationship betWeween subclinical viremia, renal allograft infection and allograft injury. This will be the first prospective study in renal transplant recipients to systematically monitor subclinical viral infection both in peripheral blood and in the renal allograft with concurrent quantitative measures of renal function, allograft fibrosis, and innate immune activation. The investigators have chosen these 3 outcomes because they evaluate a spectrum of renal allograft injury and represent different stages - from early to late - in the pathophysiology that leads to renal allograft dysfunction. In addition, the role of virus specific T cell immune responses in the control of subclinical viral infection and associated allograft injury will be determined. These data are critical as they will provide insights into the pathogenesis of injury and will guide development of interventions strategies. Importantly, the current treatment strategies for viral disease do not prevent subclinical viral infection. Thus, the results of this study may identify that prevention, prophylaxis and/or treatment of subclinical viral replication as a long term strategy to prevent chronic allograft injury and prolong graft survival.

Conditions

Kidney Transplantation; Kidney Failure, Chronic

Keywords

Kidney transplantation; Subclinical Viral Infection; Renal Allograft Injury

Outcome Measures

Primary Outcomes (1)

• Change in measured GFR from baseline

  Single infusion of iohexol clearance to measure GFR

  time of transplant, one time between months 3 and 6, and during months 12, and 24 after the transplant

Secondary Outcomes (2)

• Change in interstitial fibrosis and tubular atrophy of renal allograft from baseline

  Renal biopsies will be performed at time of transplant, 3-6 m, 12m, and 24m post-transplant. Precise measures of renal function, allograft fibrosis, and innate immune activation will be performed at baseline, 6m, 12, 24m post-transplant.

• Change in innate immune activation of renal allograft from baseline

  6, 12, and 24 months after the transplant

Eligibility Criteria

• Age: 1 Year - 25 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Pediatric and young adult renal transplant recipients (1\<25yrs) of their first kidney transplant from Seattle Children's Hospital and University of Washington Medical Center.

You may qualify if:

• Subject and/or parent guardian must be able to understand and provide informed consent or assent
• Male or Female, Seattle Children's Hospital participants must be 1-\<21 yrs and University of Washington Medical Center participants 18-25yrs.
• Diagnosed with End Stage Renal Disease (ESRD)

You may not qualify if:

• Inability or unwillingness of subject and/or parent guardian to provide informed consent
• Pregnancy

Sponsors & Collaborators

• Seattle Children's Hospital: lead
• University of Washington: collaborator

Study Sites (1)

Seattle Children's Hospital

Seattle, Washington, 98105, United States

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

If participant agrees, blood, tissue, and study data will be banked at Seattle Children's Research Institute.

MeSH Terms

Conditions

Kidney Failure, Chronic

Condition Hierarchy (Ancestors)

Renal Insufficiency, Chronic; Renal Insufficiency; Kidney Diseases; Urologic Diseases; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Male Urogenital Diseases; Chronic Disease; Disease Attributes; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Officials

• Jodi Smith, MD

  Seattle Children's Hospital

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Jodi Smith, MD

CONTACT

206-987-2524; jodi.smith@seattlechildrens.org

Shannon Granillo

CONTACT

206-884-1418; shannon.granillo@seattlechildrens.org

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: June 6, 2012
• First Posted: June 8, 2012
• Study Start: October 1, 2011
• Primary Completion: October 1, 2016
• Study Completion: October 1, 2016
• Last Updated: June 8, 2012

Record last verified: 2012-06

Locations

US (1)