Pentoxifylline for Primary Biliary Cirrhosis

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Claudia Zein, MD, The Cleveland Clinic
ClinicalTrials.gov Identifier:
NCT01249092
First received: November 24, 2010
Last updated: October 16, 2013
Last verified: October 2013

November 24, 2010
October 16, 2013
November 2010
June 2012   (final data collection date for primary outcome measure)
Change in Serum Alkaline Phosphatase Levels. [ Time Frame: 6 months ] [ Designated as safety issue: No ]
Serum alkaline phosphatase levels at entry and at 6 months of therapy with PTX will be measured and compared.
Improvement of serum alkaline phosphatase levels. [ Time Frame: 6 months ] [ Designated as safety issue: No ]
Serum alkaline phosphatase levels at entry, at 3 months, and at 6 months of therapy with PTX will be measured and compared.
Complete list of historical versions of study NCT01249092 on ClinicalTrials.gov Archive Site
  • Change in Serum Concentration of Tissue Inhibitor Metalloproteinase 1 (TIMP-1) After PTX Therapy. [ Time Frame: 6 months ] [ Designated as safety issue: No ]
    Serum concentration of tissue inhibitor metalloproteinase 1 (TIMP-1), a fibrosis biomarker of interest, will be measured and the change in serum levels between entry and end of study will be calculated.
  • Safety of Therapy in the Pilot Study of PTX Therapy in Patients With PBC Will be Assessed [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]
    The number of participants that experienced any severe adverse events will be monitored and recorded.
  • Serum levels of cytokines including TNF-alpha. [ Time Frame: 6 months ] [ Designated as safety issue: No ]
    Levels of cytokines of interest, including TNF-alpha, at entry and after PTX therapy will be measured and compared.
  • Safety of therapy with PTX in patients with PBC will be assessed [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]
    Adverse effects occurring during the study will be compared with the established adverse effects profile of PTX
Not Provided
Not Provided
 
Pentoxifylline for Primary Biliary Cirrhosis
A Pilot Study of Pentoxifylline for the Treatment of Primary Biliary Cirrhosis

Primary biliary cirrhosis (PBC) is cholestatic liver disease characterized by progressive destruction of small bile ducts within the liver that can lead to end stage liver disease and all its complications.

Although ursodeoxycholic acid (UDCA) is associated with increased survival in many patients with PBC, there is absence of an adequate response to UDCA in a significant proportion of PBC patients.

Tumor necrosis factor alpha (TNF-alpha) is a cytokine that plays an important role in the pathogenesis of PBC. Other fibrosis biomarkers such as tissue metallo proteinase 1 (TIMP-1) are associated with progression of liver fibrosis in PBC. Pentoxifylline (PTX) is a methylxanthine derivative that inhibits pro-inflammatory cytokines and also has shown anti-fibrotic effects in serum of patients with PBC. Furthermore, PTX has well known clinical and safety profiles. The main hypothesis of this study is that therapy with pentoxifylline (PTX) will result in improvement of liver disease in PBC patients who are incomplete responders to UDCA.

The focus of this proposal is on the effectiveness of PTX in improving laboratory parameters of liver disease and levels of cytokines involved in the pathogenesis of the disease in patients with PBC.

Not Provided
Interventional
Phase 2
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Primary Biliary Cirrhosis
Drug: Pentoxifylline
Patients will take 400mg of pentoxifylline three times daily for a total duration of 6 months.
Experimental: Pentoxifylline 400 mg TID
This study is an open label pilot with only one arm.
Intervention: Drug: Pentoxifylline
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
20
March 2013
June 2012   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Male and female patients ages 18 to 76 years.
  • Established diagnosis of PBC based on at least three of the following criteria:

    • Detectable anti-mitochondrial antibodies (AMA)
    • Cholestatic biochemical pattern
    • Liver biopsy compatible with PBC
    • Appropriate exclusion of other liver diseases.
  • Therapy with UDCA at adequate dose (13-15mg/kg/d) for at least six months and evidence of suboptimal response defined by alkaline phosphatase levels that did not normalize and remain elevated by at least 1.5 times the upper limit of normal.
  • No history or present hepatic decompensation (e.g. variceal hemorrhage, encephalopathy, or poorly controlled ascites).

Exclusion Criteria:

  • Findings highly suggestive of liver disease of other etiology.
  • A score >=10 points on the Revised Scoring System for autoimmune hepatitis (AIH), supporting a diagnosis of PBC/AIH overlap.
  • Patients on steroids (systemic), immunosuppressants, or immunomodulatory agents within the previous 6 months.
  • Patients with clinical or laboratory evidence suggestive of decompensated cirrhosis.
  • Hypersensitivity to PTX or the methylxanthines (caffeine, theophylline, theobromine).
  • History of cerebral or retinal hemorrhage.
  • Other medical comorbidities (such as cardiac, renal, cancer) that would interfere with completion of the study.
  • Patients taking Theophylline or Coumadin because of potential drug-drug interactions with PTX. In addition, patients taking low molecular weight heparin preparations.
  • Pregnant or nursing women.
Both
18 Years to 76 Years
No
Contact information is only displayed when the study is recruiting subjects
United States
 
NCT01249092
07-1003
Yes
Claudia Zein, MD, The Cleveland Clinic
The Cleveland Clinic
Not Provided
Principal Investigator: Claudia O. Zein, MD, MSc The Cleveland Clinic
The Cleveland Clinic
October 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP