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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT00588458
Other study ID # 06-002976 0
Secondary ID
Status Withdrawn
Phase Phase 2
First received December 26, 2007
Last updated April 27, 2015
Start date March 2007
Est. completion date February 2009

Study information

Verified date April 2015
Source Mayo Clinic
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

The reason for this study is to see if a new radiologic technique called computerized tomographic cholangiography (CT cholangiography) could be helpful to demonstrate the bile ducts features and measure the amount of space of bile duct canals that should be filled with bile fluid. It may be useful to find out how well these findings correlate with the previously known clinical predictors in term of the clinical outcomes that will happen in the future for patients with primary sclerosing cholangitis (PSC).


Description:

Prognostic models, which have been produced based on clinical, histological and biochemical feature, are useful in predicting survival and determining timing for liver transplantation. Preliminary feasibility studies in patients with PSC using high resolution CT with a contrast agent (CT cholangiography), has shown excellent depiction of bile ducts. CT cholangiography also has the potential to allow quantification of intraductal volume by using sophisticated computer programs. This assessment may be an important clinical feature to assess disease severity and progression.The information about cholangiographic features could be important for therapeutic decisions (e.g., in determining the usefulness of balloon dilatation or stenting for a dominant extrahepatic duct stricture), for counseling patients, and for therapeutic trials in stratifying patients and assessing efficacy of treatment.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date February 2009
Est. primary completion date November 2008
Accepts healthy volunteers No
Gender Both
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria:

- Adult males or females, age 18-70 (inclusive) with suspected PSC.

- Serum carbohydrate antigen 19-9 (CA19-9) level in normal range (obtained within the previous year), or if greater than normal, the patient requires a negative cytologic or histologic evidence for cholangiocarcinoma within prior 3 months.

- Sexually active female patients of childbearing potential must be evaluated for pregnancy. A pregnancy test obtained at entry prior to the initiation of treatment must by negative. Female patient must not be breast-feeding.

- Renal function: a creatinine less than 2.0 mg/dL or a diabetic patient with a creatinine less than 1.5 mg/dL.

Exclusion Criteria:

- Evidence of cholangiocarcinoma

- Pregnancy or breast feeding

- History of allergy to iodinated contrast agents or morphine

- Renal impairment as defined as known renal disease, a creatinine higher than 2.0 mg/dL or a diabetic patient with a creatinine higher than 1.5 mg/dL.

- Any known pre-existing medical condition that could interfere with the patient's participation in and completion of the study such as significant cardiovascular dysfunction or chronic obstructive pulmonary disease requiring specific therapy.

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label


Intervention

Procedure:
CT cholangiography
Cholografin 20ml will be diluted in 100 ml of normal saline and infused over 30 minute time interval. Following the infusion of the cholografin, morphine (0.04 mg/kg) will be administered to contract the sphincter of Oddi and improve bile duct distension and visualization. Thirty minutes following the administration of morphine a test scan (CT cholangiography) will be performed through the liver to determine if there is adequate biliary excretion. The test scan will consist of 10 mm thick image obtained through the mid liver. If there is evidence of biliary excretion, high-resolution images will be performed through the liver and bile ducts. The axial images will be reconstructed into maximum intensity projection models and volume rendered models that can be viewed in 3-dimension.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Mayo Clinic

Outcome

Type Measure Description Time frame Safety issue
Primary To determine the correlation between baseline characteristics of bile ducts and intraductal volume of the biliary tree by CT cholangiography and MELD score and the Mayo risk score in patients with PSC. baseline No
Secondary To determine the correlation between change in characteristics of bile ducts and intraductal volume of the biliary tree by CT cholangiography and change in MELD score and the Mayo risk score after 2-years of follow-up as compared with baseline. 2 years No
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