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Interstitial Cystitis Clinical Trials Group/Research Network (ICCRN)

History of NIDDK IC Research

Interstitial cystitis (IC) is a chronic disorder, diagnosed primarily in women. The condition is characterized by pelvic pain associated with urinary frequency and urgency. Despite considerable effort, the etiology of IC has not been established. Although a large number of purported treatments are available, few rigorous, randomized clinical trials have been conducted to justify the use of many agents.

The Interstitial Cystitis Clinical Research Network (ICCRN) was established by NIDDK's Division of Kidney, Urologic, and Hematologic Diseases to develop and conduct randomized clinical trials that evaluate novel therapies for IC. The network comprises 10 clinical centers and a data-coordinating center that provides expertise in protocol development, data analysis, quality control, and data management.

NIDDK IC Research

The ICCRN is a product of two NIDDK programs: the Interstitial Cystitis Database (ICDB) Study and the Interstitial Cystitis Clinical Trials Group (ICCTG). Established in 1991, the ICDB was a five-year prospective cohort study of more than 600 men and women with symptoms of urinary urgency, frequency, and pelvic pain. The study described the longitudinal changes of urinary symptoms, the impact of IC on quality of life, treatment patterns, and the relationship between bladder biopsy findings and patient symptoms. The ICCTG was established in 1996 as a follow-up to the ICDB study. The clinical trials group developed two randomized, controlled clinical trials of promising therapies, one using oral therapies, pentosan polysulfate sodium (Elmiron®) and hydroxyzine hydrochloride (Atarax®) and the other administering intravesical treatment using Bacille Calmette-Guerin (BCG). BCG is a vaccine for tuberculosis that stimulates the immune system and may have an effect on the bladder. The ICCTG also developed and conducted ancillary studies of various biomarkers such as heparin-binding-growth-factor-like-growth-factor (HB-EGF) and anti-proliferative factor (APF).

In 2003, the ICCTG became the Interstitial Cystitis Clinical Research Network (ICCRN), which will conduct additional clinical trials, either sequentially or concurrently, over a second five-year period. Ancillary studies will be developed and conducted in conjunction with the trials.

ICCRN Centers

Stanford University Medical Center
Christopher K. Payne, M.D.
Rajesh Shinghal, M.D.
Rodney U. Anderson, M.D.
Debra Clay, R.N., B.S.N.
(650) 724-1753

CANADA, Kingston, Ontario
Queen's University
J. Curtis Nickel, M.D.
Alvaro Morales, M.D.
Laurel Emerson, R.N., CCRP
Joe Downey, M.Sc., CCRP
[JD] (613) 533-2894

Loyola University Medical Center
Mary Pat Fitzgerald, M.D.
Linda Brubaker, M.D.
Elizabeth Wengel, M.S., R.N.
(708) 216-8495

IOWA, Iowa City
University of Iowa
Karl J. Kreder, M.D.
Michael O'Donnell, M.D.
Mary Eno, R.N.
(319) 384-9265

MARYLAND, Baltimore
University of Maryland
Toby Chai, M.D.
Susan Keay, M.D.
Lisa C. Radebaugh, CRNP, CUNP
(410) 328-5108

Tufts Univ. School of Medicine -
New England Medical Center
Erol Onel, M.D.
Grannum R. Sant, M.D.
T.C. Theoharides, Ph.D., M.D.
Patricia Radgowski
Carolyn Shea-O'Malley, R.N.
(617) 636-6317

Henry Ford Hospital
David Burks, M.D.
Rifaat Dagher, M.D.
Michelle Peabody, R.N.
Jill Sullivan, R.N., B.S.N.
(313) 916-8972

William Beaumont Hospital
Kenneth Peters, M.D.
Eleanor Anton, R.N.
(248) 551-0885

NEW YORK, Rochester
University of Rochester
Robert Mayer, M.D.
Edward M. Messing, M.D.
Kay Rust, R.N., M.S.N., F.N.P.
Elizabeth M. Smith, B.S.
(585) 275-0133

PENNSYLVANIA, Philadelphia
University of Pennsylvania
Philip Hanno, M.D.
Diane K. Newman, R.N.C., M.S.N., CRNP
Lilliam Ribeiro, B.S.

University of Washington
Richard E. Berger, M.D.
Charles H. Muller, Ph.D., HCLD
Elizabeth A. Miller, M.D.
Jane Miller, M.D.
Margaret Frest
(206) 598-6357

IC and Chronic Prostatitis

Because there is substantial commonality in the design and conduct of clinical trials for patients with interstitial cystitis and patients with chronic prostatitis, and because both involve chronic pelvic pain, investigators from the ICCRN and the Chronic Prostatitis Collaborative Research Network (CPCRN) will participate in an overarching organization, the Urological Pelvic Pain Collaborative Research Network (UPPCRN).

Project Officer: Leroy Nyberg, M.D., Ph.D., 301-594-7717

Last Update: 9/15/2004

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