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CompletedNCT01504295Updated Jul 22, 2015

A Novel Pharmacotherapy for Alcoholism and Alcohol Liver Disease

A Phase 2 interventional study of Metadoxine in Alcoholism, and Alcoholic Liver Disease, sponsored by Brown University. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-07-22.

Sponsored by Brown University · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
38
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

It is proposed to test metadoxine (MTDX) that it is hypothesized to be significantly beneficial for the treatment of alcoholism and ALD. Metadoxine is currently approved in Europe for acute and chronic alcohol intoxication but has never been tested in the US. Furthermore, MTDX is used in Europe to treat ALD. Preliminary evidence shows that MTDX reduces alcohol consumption in AD individuals. If the role of MTDX in reducing alcohol consumption and improve liver function is confirmed by a rigorous study design, then MTDX might represent a truly innovative pharmacotherapy for AD, given the potential to be used for AD individuals with ALD. However until this proposal, MTDX has never been investigated as a treatment for AD able to reduce both alcohol consumption and improve alcohol-related liver damage via a double-blind placebo-controlled study. This project therefore proposes to conduct a 12-week (followed by a 3-month follow-up), double-blind, placebo-controlled, between-subject randomized clinical trial with MTDX (500mg t.i.d.) in AD individuals.

Read the detailed description

Treatments for ALD have limited success when drinking continues. Cessation of alcohol consumption or a significant reduction in alcohol intake improves histology and survival of patients with any stage of ALD. While alcohol abstinence may not be sufficient to provide a total recovery of ALD, patients with uncomplicated ALD have a 5-year survival of almost 90% if they stop drinking. Consequently, abstinence is the most important therapeutic intervention for patients with ALD. When combined with psychosocial treatments, currently approved medications can improve outcomes for some AD individuals; however, these treatments are unsuccessful for many others. One of the limiting factors that must be taken into consideration when using currently approved medications such as disulfiram or naltrexone is liver function. Given their hepatic metabolism, disulfiram or naltrexone both increase the risk of hepatotoxicity in AD individuals. Therefore, a pharmacotherapy that is effective for AD, that is safe for the liver and able to recover alcohol-related liver damage thereby improving liver function, would be an ideal medication. However as of now, no drug has been found to provide all of these benefits to AD individuals. It is proposed therefore to test metadoxine (MTDX) that it is hypothesized is significantly beneficial for the treatment of alcoholism and ALD. Metadoxine is currently approved in Europe for acute and chronic alcohol intoxication but has never been tested in the US. Furthermore, MTDX is used in Europe to treat ALD. Preliminary evidence shows that MTDX reduces alcohol consumption in AD individuals. If the role of MTDX in reducing alcohol consumption and improve liver function is confirmed by a rigorous study design, then MTDX might represent a truly innovative pharmacotherapy for AD, given the potential to be used for AD individuals with ALD. However until this proposal, MTDX has never been investigated as a treatment for AD able to reduce both alcohol consumption and improve alcohol-related liver damage via a double-blind placebo-controlled study. This project therefore proposes to conduct a 12-week (followed by a 3-month follow-up), double-blind, placebo-controlled, between-subject randomized clinical trial with MTDX (500mg t.i.d.) in AD individuals.

02

Conditions studied

  • Alcoholism,
  • Alcoholic Liver Disease
03

In context

Liver Diseases

2,081 studies on the registry are indexed under Liver Diseases; 390 are open to participants now.

This study's enrollment of 38 is below the median of 50 across 1,323 interventional studies indexed under Liver Diseases.

Browse Liver Diseases studies →

Lead sponsor

Brown University is the lead sponsor of 282 studies on the registry; 42 are open to participants now.

Of its 25 completed or terminated interventional studies of FDA-regulated products, 18 (72%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • age ≥18;
  • females must be post-menopausal for ≥1 year, surgically sterile, or practicing a birth control before entry and throughout the study; have a negative urine pregnancy test at screening and before randomization;
  • current DSM-IV diagnosis of alcohol use disorder (or if relevant at study start-DSM-V) with current (i.e. past 90 days prior to screening) "at-risk" drinking defined as an average overall consumption of ≥28 drinks/week for men and ≥21 drinks/week for women;
  • desire abstinence;
  • evidence of alcoholic liver disease (ALD) based on a thorough history, physical examination, and laboratory tests (i.e. the De Ritis ratio of AST:ALT ratio \~2:1), which is characteristic of ALD.

Exclusion criteria

Exclusion Criteria:

  • lifetime DSM diagnosis of schizophrenia, bipolar disorder, or other psychosis;
  • in the investigators' opinion, risk of suicide (e.g. active plan, or recent attempt in last year);
  • current DSM-IV diagnosis of dependence on any psychoactive substance other than alcohol and nicotine;
  • repeated positive urine screen for any substance other than marijuana;
  • history of hospitalization for alcohol intoxication delirium or alcohol withdrawal delirium;
  • Clinical Institute Withdrawal Assessment for Alcohol (CIWA-Ar) score >10, at any assessment;
  • having received a psychological and/or pharmacological treatment for alcohol or having participated in a treatment research study within the past 90 days;
  • having participated in any clinical trial with an investigational agent within the past 30 days;
  • treatment with levodopa/carbidopa or reported diagnosis of Parkinson's disease;
  • AST and/or ALT >10 x upper normal limit; Child-Pugh-Turcotte (CPT) score stage C, model for end-stage liver disease (MELD) score >21 (CPT and MELD scores are assessed by blood tests - e.g. bilirubin, albumin, INR, Cr - and medical history); and/or medical history positive for decompensated liver disease (ascites, encephalopathy, variceal bleeding or hepatorenal syndrome) and/or medical history positive for hepatocellular carcinoma; 11) history of allergy to MTDX or PCA and pyridoxol;
  • other serious illnesses, e.g. kidney failure.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
38 participants (actual)

Study arms

  • Experimental
    Metadoxine

    Metadoxine 500mg tablet t.i.d.for 12 weeks

    Drug: Metadoxine

  • Placebo comparator
    Sugar pill

    Placebo group

    Drug: Metadoxine

Interventions

  • DrugMetadoxine

    Improve Liver Function and Reduce ALcohol Use

06

What researchers measure

Primary outcomes

  1. Percent Days Abstinent (PDA)

    We hypothesize that metadoxine (MTDX), compared to placebo significantly increases percent days abstinent (PDA) during the 12 weeks of drug administration, as measured by the timeline follow-back (TLFB).

    Time frame: 12 weeks

Secondary outcomes

  1. Follow-up PDA

    We hypothesize that MTDX, compared to placebo results in significantly higher PDA from discontinuation of the medication to the 3-month follow-up, as measured by the TLFB.

    Time frame: 12 weeks

  2. Adverse Events

    We hypothesize that MTDX, compared to placebo has no greater frequency and intensity of Adverse Events (AE).

    Time frame: 12 weeks

07

Study locations

1 site
  • Brown University Center for Alcohol and Addiction Studies
    Providence, Rhode Island 02912, United States
08

References and documents

Publications

  • Shpilenya LS, Muzychenko AP, Gasbarrini G, Addolorato G. Metadoxine in acute alcohol intoxication: a double-blind, randomized, placebo-controlled study. Alcohol Clin Exp Res. 2002 Mar;26(3):340-6. PubMed 11923586 ↗
  • Addolorato G, Ancona C, Capristo E, Gasbarrini G. Metadoxine in the treatment of acute and chronic alcoholism: a review. Int J Immunopathol Pharmacol. 2003 Sep-Dec;16(3):207-14. doi: 10.1177/039463200301600304. PubMed 14611722 ↗
  • Leggio L, Kenna GA, Ferrulli A, Zywiak WH, Caputo F, Swift RM, Addolorato G. Preliminary findings on the use of metadoxine for the treatment of alcohol dependence and alcoholic liver disease. Hum Psychopharmacol. 2011 Dec;26(8):554-9. doi: 10.1002/hup.1244. Epub 2011 Nov 16. PubMed 22095793 ↗
  • Guerrini I, Gentili C, Nelli G, Guazzelli M. A follow up study on the efficacy of metadoxine in the treatment of alcohol dependence. Subst Abuse Treat Prev Policy. 2006 Dec 18;1:35. doi: 10.1186/1747-597X-1-35. PubMed 17176456 ↗
  • Caballeria J, Pares A, Bru C, Mercader J, Garcia Plaza A, Caballeria L, Clemente G, Rodrigo L, Rodes J. Metadoxine accelerates fatty liver recovery in alcoholic patients: results of a randomized double-blind, placebo-control trial. Spanish Group for the Study of Alcoholic Fatty Liver. J Hepatol. 1998 Jan;28(1):54-60. doi: 10.1016/s0168-8278(98)80202-x. PubMed 9537864 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 22, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01504295
Lead sponsor
Brown University
Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Responsible party
George Kenna (Assistant Professor of Psychiatry, Brown University) — Principal investigator
First posted
Jan 5, 2012
Start date
Apr 2012
Primary completion
Jan 2015
Completion
Feb 2015
Last update
Jul 22, 2015

Study contacts

George A Kenna, PhD RPh
principal investigator · Brown University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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