CBZ: Carbamazepine in Severe Liver Disease Due to Alpha-1 Antitrypsin Deficiency

Sponsor
Washington University School of Medicine (Other)
Overall Status
Terminated
CT.gov ID
NCT01379469
Collaborator
Novartis (Industry), National Institutes of Health (NIH) (NIH), National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) (NIH), University of Pittsburgh (Other)
20
3
2
61
6.7
0.1

Study Details

Study Description

Brief Summary

The primary objective is to determine if the medication Carbamazepine, can be used as a therapy for patients with severe liver disease due to Alpha-1-Antitrypsin Deficiency .

Condition or Disease Intervention/Treatment Phase
  • Drug: Drug-Carbamazepine (Tegretol XR)
  • Drug: Carbamazepine (Tegretol XR) Placebo
Phase 2

Detailed Description

The primary objective is to determine if Carbamazepine therapy in patients with severe liver disease due to Alpha-1-Antitrypsin Deficiency leads to a significant reduction in the hepatic accumulation of ATZ.

The other objectives are:

To determine whether Carbamazepine treatment reduces hepatic fibrosis in alpha-1-antitrypsin deficient patients with severe liver disease. To determine whether Carbamazepine treatment reduces portal pressure in alpha-1-antitrypsin deficient patients with severe liver disease. To determine whether Carbamazepine treatment is safe and tolerated by patients with severe liver disease caused by alpha-1-deficiency. To determine whether Carbamazepine treatment leads to stabilization in disease severity as measured by the MELD scores.

Study Design

Study Type:
Interventional
Actual Enrollment :
20 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
A Preliminary Study of the Efficacy and Safety of Carbamazepine in Severe Liver Disease Due to Alpha-1 Antitrypsin Deficiency
Study Start Date :
Jan 1, 2012
Actual Primary Completion Date :
Feb 1, 2017
Actual Study Completion Date :
Feb 1, 2017

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: Drug-Carbamazepine (Tegretol XR)

One arm receives Drug-Carbamazepine (Tegretol XR).All subjects have severe liver disease due to alpha-1-antitrypsin deficiency.

Drug: Drug-Carbamazepine (Tegretol XR)
To reduce the likelihood of hypersensitivity reactions the subjects will be started on 400 mg/day in 2 doses and the dose will be increased weekly by 200mg/day until reaching a stable therapeutic concentration with a dose not exceeding 1200mg/day(or 1000mg/day in subjects less than 15 years of age). The CBZ tablets will be encapsulated..
Other Names:
  • Tegretol-XR Carbamazepine extended release tablets.
  • NDC 0078-0510-05.
  • Placebo Comparator: Drug-Carbamazepine (Tegretol XR) Placebo

    One arm receives Carbamazepine (Tegretol-XR) placebo.All subjects have severe liver disease due to alpha-1-antitrypsin deficiency.

    Drug: Carbamazepine (Tegretol XR) Placebo
    Carbamazepine (Tegretol XR)Placebo-the subjects will be started on 400mg/day in 2 doses and the dose will be increased weekly by 200 mg/day until reaching a dose not exceeding 1200 mg/day (or 1000 mg/day in subjects less than 15 years of age). The placebo group will receive encapsulated tables without Carbamazepine.
    Other Names:
  • Carbamazepine (Tegretol-XR) placebo.
  • Outcome Measures

    Primary Outcome Measures

    1. The Primary Outcome Will be to Determine the Effect of Carbamazepine on Hepatic ATZ Load. [52 weeks]

      The effect of Carbamazepine on hepatic ATZ load will be measured by the number of hepatocytes with PAS+/diastase-resistant globules and/or steady state levels of ATZ by immunoblot analysis.

    Secondary Outcome Measures

    1. For the Secondary Outcomes we Will Determine the Effect of Carbamazepine Treatment on Hepatic Fibrosis. [52 weeks]

      For the secondary outcomes we will determine the effect of Carbamazepine treatment on hepatic fibrosis on the basis of sirius red staining and hydroxyproline concentration and whether Carbamazepine treatment changes portal pressure as determined by Hepatic Venous Pressure Gradient.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    14 Years to 80 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Age greater than or equal to 14 years to less than or equal to 80 years of age.

    • Alpha-1-Antitrypsin deficiency confirmed by ZZ or SZ phenotype & serum level

    • < 83mg/dl.

    • HVPG greater than or equal to 10 mmHg unless collateral vessels are visualized via transvenous biopsy.

    Exclusion Criteria:
    • Child Pugh Score greater than or equal to 12. Serum total bilirubin > 5 mg/dl. INR > 2.2.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Washington University in St. Louis School of Medicine Saint Louis Missouri United States 63110
    2 Children's Hospital of Pittsburgh, UPMC Pittsburgh Pennsylvania United States 15201
    3 University of Pittsburgh Medical Center, Presbyterian Hospital Pittsburgh Pennsylvania United States 15213

    Sponsors and Collaborators

    • Washington University School of Medicine
    • Novartis
    • National Institutes of Health (NIH)
    • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
    • University of Pittsburgh

    Investigators

    • Principal Investigator: David H. Perlmutter, M.D., Washington University School of Medicine

    Study Documents (Full-Text)

    More Information

    Additional Information:

    Publications

    Responsible Party:
    Washington University School of Medicine
    ClinicalTrials.gov Identifier:
    NCT01379469
    Other Study ID Numbers:
    • 201510060-PRO09070279
    • 1R21DK092567-01
    First Posted:
    Jun 23, 2011
    Last Update Posted:
    Oct 12, 2021
    Last Verified:
    Oct 1, 2021
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Keywords provided by Washington University School of Medicine
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail
    Arm/Group Title Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Arm/Group Description One arm receives Drug-Carbamazepine (Tegretol XR).All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Drug-Carbamazepine (Tegretol XR): To reduce the likelihood of hypersensitivity reactions the subjects will be started on 400 mg/day in 2 doses and the dose will be increased weekly by 200mg/day until reaching a stable therapeutic concentration with a dose not exceeding 1200mg/day(or 1000mg/day in subjects less than 15 years of age). The CBZ tablets will be encapsulated. One arm receives Carbamazepine (Tegretol-XR) placebo.All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Carbamazepine (Tegretol XR) Placebo: Carbamazepine (Tegretol XR)Placebo-the subjects will be started on 400mg/day in 2 doses and the dose will be increased weekly by 200 mg/day until reaching a dose not exceeding 1200 mg/day (or 1000 mg/day in subjects less than 15 years of age). The placebo group will receive encapsulated tables without Carbamazepine.
    Period Title: Overall Study
    STARTED 13 7
    COMPLETED 1 3
    NOT COMPLETED 12 4

    Baseline Characteristics

    Arm/Group Title Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo Total
    Arm/Group Description One arm receives Drug-Carbamazepine (Tegretol XR).All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Drug-Carbamazepine (Tegretol XR): To reduce the likelihood of hypersensitivity reactions the subjects will be started on 400 mg/day in 2 doses and the dose will be increased weekly by 200mg/day until reaching a stable therapeutic concentration with a dose not exceeding 1200mg/day(or 1000mg/day in subjects less than 15 years of age). The CBZ tablets will be encapsulated, and the placebo group will receive encapsulated tablets without CBZ. One arm receives Carbamazepine (Tegretol-XR) placebo.All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Carbamazepine (Tegretol XR) Placebo: Carbamazepine (Tegretol XR)Placebo-the subjects will be started on 400mg/day in 2 doses and the dose will be increased weekly by 200 mg/day until reaching a dose not exceeding 1200 mg/day (or 1000 mg/day in subjects less than 15 years of age). The placebo group will receive encapsulated tables without Carbamazepine. Total of all reporting groups
    Overall Participants 13 7 20
    Age (Count of Participants)
    <=18 years
    0
    0%
    1
    14.3%
    1
    5%
    Between 18 and 65 years
    13
    100%
    3
    42.9%
    16
    80%
    >=65 years
    0
    0%
    3
    42.9%
    3
    15%
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    50.7
    (9.4)
    53.7
    (19.6)
    51.75
    (13.38)
    Sex: Female, Male (Count of Participants)
    Female
    5
    38.5%
    3
    42.9%
    8
    40%
    Male
    8
    61.5%
    4
    57.1%
    12
    60%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    0
    0%
    0
    0%
    0
    0%
    Asian
    0
    0%
    0
    0%
    0
    0%
    Native Hawaiian or Other Pacific Islander
    0
    0%
    0
    0%
    0
    0%
    Black or African American
    0
    0%
    0
    0%
    0
    0%
    White
    13
    100%
    7
    100%
    20
    100%
    More than one race
    0
    0%
    0
    0%
    0
    0%
    Unknown or Not Reported
    0
    0%
    0
    0%
    0
    0%
    Region of Enrollment (participants) [Number]
    United States
    13
    100%
    7
    100%
    20
    100%

    Outcome Measures

    1. Primary Outcome
    Title The Primary Outcome Will be to Determine the Effect of Carbamazepine on Hepatic ATZ Load.
    Description The effect of Carbamazepine on hepatic ATZ load will be measured by the number of hepatocytes with PAS+/diastase-resistant globules and/or steady state levels of ATZ by immunoblot analysis.
    Time Frame 52 weeks

    Outcome Measure Data

    Analysis Population Description
    The primary outcome was not assessable because the number of subjects with available pre & post PAS+/diastase stained liver biopsies & tissue for immunoblot was insufficient in subject number and sample quality. To elaborate only 3 subjects had both pre & post biopsies stained for PAS, 2 from the placebo & 1 from the Carbamazepine arms & the available histology quality was insufficient for histomorphormetry. Frozen liver samples were also of insufficient number & mass for immunoblot.
    Arm/Group Title Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Arm/Group Description One arm receives Drug-Carbamazepine (Tegretol XR).All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Drug-Carbamazepine (Tegretol XR): To reduce the likelihood of hypersensitivity reactions the subjects will be started on 400 mg/day in 2 doses and the dose will be increased weekly by 200mg/day until reaching a stable therapeutic concentration with a dose not exceeding 1200mg/day(or 1000mg/day in subjects less than 15 years of age). The CBZ tablets will be encapsulated, and the placebo group will receive encapsulated tablets without CBZ. One arm receives Carbamazepine (Tegretol-XR) placebo.All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Carbamazepine (Tegretol XR) Placebo: Carbamazepine (Tegretol XR)Placebo-the subjects will be started on 400mg/day in 2 doses and the dose will be increased weekly by 200 mg/day until reaching a dose not exceeding 1200 mg/day (or 1000 mg/day in subjects less than 15 years of age). The placebo group will receive encapsulated tables without Carbamazepine.
    Measure Participants 0 0
    2. Secondary Outcome
    Title For the Secondary Outcomes we Will Determine the Effect of Carbamazepine Treatment on Hepatic Fibrosis.
    Description For the secondary outcomes we will determine the effect of Carbamazepine treatment on hepatic fibrosis on the basis of sirius red staining and hydroxyproline concentration and whether Carbamazepine treatment changes portal pressure as determined by Hepatic Venous Pressure Gradient.
    Time Frame 52 weeks

    Outcome Measure Data

    Analysis Population Description
    The secondary outcome was also not assessable because the number of subjects with available pre & post trichrome stained liver biopsies & tissue for hydroxyproline was also insufficient in subject number and sample quality. Again only 3 subjects had both pre & post biopsies stained for trichrome, 2 placebo- & 1 Carbamazepine treated. Available histology quality was also insufficient here for histomorphormetry &.frozen liver samples insufficient for hydroxyproline determination.
    Arm/Group Title Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Arm/Group Description One arm receives Drug-Carbamazepine (Tegretol XR).All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Drug-Carbamazepine (Tegretol XR): To reduce the likelihood of hypersensitivity reactions the subjects will be started on 400 mg/day in 2 doses and the dose will be increased weekly by 200mg/day until reaching a stable therapeutic concentration with a dose not exceeding 1200mg/day(or 1000mg/day in subjects less than 15 years of age). The CBZ tablets will be encapsulated, and the placebo group will receive encapsulated tablets without CBZ. One arm receives Carbamazepine (Tegretol-XR) placebo.All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Carbamazepine (Tegretol XR) Placebo: Carbamazepine (Tegretol XR)Placebo-the subjects will be started on 400mg/day in 2 doses and the dose will be increased weekly by 200 mg/day until reaching a dose not exceeding 1200 mg/day (or 1000 mg/day in subjects less than 15 years of age). The placebo group will receive encapsulated tables without Carbamazepine.
    Measure Participants 0 0

    Adverse Events

    Time Frame Serious Adverse Events and Adverse Events were collected for 52 weeks.
    Adverse Event Reporting Description
    Arm/Group Title Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Arm/Group Description One arm receives Drug-Carbamazepine (Tegretol XR).All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Drug-Carbamazepine (Tegretol XR): To reduce the likelihood of hypersensitivity reactions the subjects will be started on 400 mg/day in 2 doses and the dose will be increased weekly by 200mg/day until reaching a stable therapeutic concentration with a dose not exceeding 1200mg/day(or 1000mg/day in subjects less than 15 years of age). The CBZ tablets will be encapsulated, and the placebo group will receive encapsulated tablets without CBZ. One arm receives Carbamazepine (Tegretol-XR) placebo.All subjects have severe liver disease due to alpha-1-antitrypsin deficiency. Carbamazepine (Tegretol XR) Placebo: Carbamazepine (Tegretol XR)Placebo-the subjects will be started on 400mg/day in 2 doses and the dose will be increased weekly by 200 mg/day until reaching a dose not exceeding 1200 mg/day (or 1000 mg/day in subjects less than 15 years of age). The placebo group will receive encapsulated tables without Carbamazepine.
    All Cause Mortality
    Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/13 (0%) 2/7 (28.6%)
    Serious Adverse Events
    Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 6/13 (46.2%) 4/7 (57.1%)
    Blood and lymphatic system disorders
    Hematologic 1/13 (7.7%) 1 0/7 (0%) 0
    Cardiac disorders
    Cardiac 1/13 (7.7%) 1 1/7 (14.3%) 2
    Gastrointestinal disorders
    Gastrointestinal 2/13 (15.4%) 3 2/7 (28.6%) 2
    General disorders
    Pain 2/13 (15.4%) 3 1/7 (14.3%) 1
    Constitutional 4/13 (30.8%) 6 0/7 (0%) 0
    Infections and infestations
    Infection 2/13 (15.4%) 4 2/7 (28.6%) 2
    Metabolism and nutrition disorders
    Metabolic/Laboratory 1/13 (7.7%) 1 0/7 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Pulmonary 1/13 (7.7%) 2 1/7 (14.3%) 2
    Vascular disorders
    Vascular 2/13 (15.4%) 2 0/7 (0%) 0
    Other (Not Including Serious) Adverse Events
    Drug-Carbamazepine (Tegretol XR) Drug-Carbamazepine (Tegretol XR) Placebo
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 13/13 (100%) 7/7 (100%)
    Blood and lymphatic system disorders
    Hematologic 3/13 (23.1%) 4 1/7 (14.3%) 1
    Cardiac disorders
    Cardiac 1/13 (7.7%) 2 3/7 (42.9%) 4
    Endocrine disorders
    Endocrine 3/13 (23.1%) 3 1/7 (14.3%) 1
    Gastrointestinal disorders
    Gastrointestinal 9/13 (69.2%) 35 5/7 (71.4%) 13
    General disorders
    Constitutional 12/13 (92.3%) 63 7/7 (100%) 17
    Pain 8/13 (61.5%) 15 5/7 (71.4%) 8
    Hepatobiliary disorders
    Child-Pugh Score Increase 1/13 (7.7%) 1 1/7 (14.3%) 2
    Infections and infestations
    Infection 7/13 (53.8%) 16 3/7 (42.9%) 5
    Metabolism and nutrition disorders
    Metabolic/Laboratory 3/13 (23.1%) 3 2/7 (28.6%) 3
    Musculoskeletal and connective tissue disorders
    Musculoskeletal 7/13 (53.8%) 12 3/7 (42.9%) 5
    Nervous system disorders
    Neurologic 10/13 (76.9%) 31 3/7 (42.9%) 5
    Renal and urinary disorders
    Genitourological 3/13 (23.1%) 3 2/7 (28.6%) 2
    Reproductive system and breast disorders
    Gynecological 2/13 (15.4%) 2 1/7 (14.3%) 1
    Respiratory, thoracic and mediastinal disorders
    Pulmonary 4/13 (30.8%) 9 4/7 (57.1%) 5
    Skin and subcutaneous tissue disorders
    Dermatologic 2/13 (15.4%) 2 2/7 (28.6%) 4
    Vascular disorders
    Vascular 5/13 (38.5%) 5 1/7 (14.3%) 1

    Limitations/Caveats

    The primary & secondary outcomes could not be assessed because the number of subjects with available pre & post biopsies was insufficient in subject number and sample quality to conduct the analyses. As described in more detail in Outcome Measures. .

    More Information

    Certain Agreements

    All Principal Investigators ARE employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title David Rudnick MD, PhD- Associate Professor
    Organization Washington University School of Medicine
    Phone 314-286-2832
    Email rudnick_d@wustl.edu
    Responsible Party:
    Washington University School of Medicine
    ClinicalTrials.gov Identifier:
    NCT01379469
    Other Study ID Numbers:
    • 201510060-PRO09070279
    • 1R21DK092567-01
    First Posted:
    Jun 23, 2011
    Last Update Posted:
    Oct 12, 2021
    Last Verified:
    Oct 1, 2021