Antioxidant Therapy to Reduce Inflammation in Sickle Cell Disease

The purpose of this study is to determine whether alpha-lipoic acid and acetyl-L-carnitine will lower systemic inflammation in patients with Sickle Cell Disease by reducing oxidative stress, which will result in a decrease in the frequency of vaso-occlusive pain episodes and improve their quality of life.

Study Overview

Detailed Description

People with sickle cell disease have more inflammation (a response of body tissues to injury or irritation) than people without sickle cell disease. This inflammation can be measured in the blood by checking the level of a protein called C reactive protein as well as other changes we see in blood due to inflammation (such as changes in platelets and other cells). There is even more inflammation during sickle-related complications (like pain or acute chest syndrome). We want to test if inflammation in people with sickle cell disease can be reduced by the use of antioxidant compounds.

Antioxidants are nutrients (certain vitamins, minerals and enzymes) that can counteract the effects of oxidative stress arising from free radicals in our cells. The formation of free radicals is a normal cell process, but uncontrolled oxidative stress can cause problems for us. One such harmful problem is inflammation.

We know from other research studies that antioxidants help with some conditions related to inflammation. In this study the antioxidant being tested is a combination of alpha-lipoic acid and acetyl-L-carnitine, both of which are natural parts of many of the foods we eat and are needed by our cells to make energy from food.

Study Type

Interventional

Enrollment (Actual)

37

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Oakland, California, United States, 94609
        • Children's Hospital & Research Center Oakland

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

10 years and older (ADULT, OLDER_ADULT, CHILD)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Proven diagnosis of sickle cell disease, either homozygous sickle disease or Hb S Beta zero thalassemia genotype
  • Age at entry at least 14 years. Younger children will not be included since the combination alpha-lipoic acid and acetyl-L-carnitine tablets are not available in a smaller dose at this time.

Exclusion Criteria:

  • More than 3 packed red blood transfusions in the past 12 months
  • Coexisting illness that could contribute to inflammation. These include chronic hepatitis, lupus, arthritis, inflammatory bowel disease, chronic osteomyelitis, and other similar conditions.
  • Acute sickle cell disease related symptoms requiring a hospital visit in the past 4 weeks
  • Women who are pregnant, attempting to get pregnant, or breast feeding
  • Active participation in other investigational drug or device studies
  • Participants who start hydroxyurea or regular transfusion therapy during the course of the study on the recommendation of their primary hematologist will be ineligible for further participation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: QUADRUPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: alpha-lipoic acid and acetyl-L-carnitine
alpha-lipoic acid and acetyl-L-carnitine1400 mg tablet twice a day for 6 months.
none to report
Other Names:
  • Experimental
PLACEBO_COMPARATOR: Placebo
1400 mg placebo tablet twice a day for 6 months.
none to report
Other Names:
  • Placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
C-Reactive Protein
Time Frame: 6 months
C-Reactive Protein (CRP) was measured by a clinical laboratory. Measuring the quantity of serum CRP is helpful in recognizing inflammatory states.
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Elliott Vichinsky, M.D., UCSF Benioff Children's Hospital Oakland
  • Study Chair: Bruce N. Ames, Ph.D., UCSF Benioff Children's Hospital Oakland
  • Study Director: Ashutosh Lal, M.D., UCSF Benioff Children's Hospital Oakland

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2009

Primary Completion (ACTUAL)

April 1, 2013

Study Completion (ACTUAL)

April 1, 2013

Study Registration Dates

First Submitted

January 20, 2010

First Submitted That Met QC Criteria

January 20, 2010

First Posted (ESTIMATE)

January 22, 2010

Study Record Updates

Last Update Posted (ACTUAL)

August 3, 2021

Last Update Submitted That Met QC Criteria

July 13, 2021

Last Verified

July 1, 2021

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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