Association of Beta-2 Adrenergic Agonist and Corticosteroid Injection in the Treatment of Lipomas

This study has been completed.
Sponsor:
Collaborator:
Lipothera
Information provided by (Responsible Party):
Frank Greenway, Pennington Biomedical Research Center
ClinicalTrials.gov Identifier:
NCT00624416
First received: February 15, 2008
Last updated: May 21, 2012
Last verified: May 2012
  Purpose

The purpose of this study is to test whether injected medications will increase the amount of fat released by a fat cell. We will compare prednisolone (a synthetic cortisone) combined with isoproterenol (a drug given for asthma) versus using isoproterenol alone. We will also test if injections of isoproterenol and prednisolone will shrink the size of lipomas, which are benign fatty tumors.


Condition Intervention Phase
Lipoma
Drug: Prednisolone synthetic cortisone and Isoproterenol together
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Pilot Study: Association of Beta-2 Adrenergic Agonist and Corticosteroid Injection in the Treatment of Lipomas

Resource links provided by NLM:


Further study details as provided by Pennington Biomedical Research Center:

Primary Outcome Measures:
  • The Average Percent Volume Reduction in the Lipoma. [ Time Frame: Baseline and 4 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • The Number of Lipoma Increased in Volume. [ Time Frame: After four weeks of treatment up to one year. ] [ Designated as safety issue: No ]
  • The Number of Subjects Elected to Have the Lipoma Removed. [ Time Frame: After four weeks up to one year. ] [ Designated as safety issue: No ]

Enrollment: 10
Study Start Date: October 2007
Study Completion Date: March 2009
Primary Completion Date: March 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Prednisolone and Isoproteronol Together
Beta-adrenergic agonists and corticosteroid
Drug: Prednisolone synthetic cortisone and Isoproterenol together
Approximately 0.2 to 0.4cc of isoproterenol-prednisolone solution (0.04 - 0.08 mg isoproterenol and 0.07 - 0.14 mg prednisolone) in one or more sites in the lipoma depending on its size, 5 days a week for 4 weeks.
Other Name: Prednisolone combined with Isoproterenol

Detailed Description:

Lipomas are benign, non-cancerous fatty tumors that occur under the skin and make a bump that can be easily felt and often seen. The current treatment for lipomas is surgery. Isoproterenol, a medication used for the treatment of asthma and approved for injection under the skin, is known to cause fat cells to give up their fat. The fat cells become resistant to isoproterenol with repeated use. Prednisolone, a synthetic cortisone medication used to treat immune problems like allergy and approved for injection under the skin, keeps the fat cells from becoming resistant to isoproterenol. It is not known, if the fat cells in lipomas act like other fat cells or if the combination of isoproterenol and prednisolone injections would shrink lipomas without surgery. This study is designed to test this possibility.

Subjects will have a screening visit, 2 microdialysis visits a week apart, 20 treatment visits 5 days per week for 4 weeks, and up to 12 follow-up visits a year after treatment visits. During screening, subjects will have a history, physical exam, blood testing, electrocardiogram and a pregnancy testing if female with reproductive capacity. The first microdialysis visit will consist of placing two microdialysis catheters under the skin after the area is numbed. One microdialysis catheter will be in the lipoma and the other under the skin 2 inches away. The microdialysis catheter will connect to a pump, isoproterenol will be infused and the amount of fat breakdown measured. One week later prednisolone will be injected into the lipoma and under the skin 2 inches away. The microdialysis visit will be repeated 24 hours later.

Treatment will consist of injecting the lipoma 5 days a week with a mixture of isoproterenol and prednisolone in the Pennington clinic as a diabetic would inject insulin. Each week the blood pressure, pulse and lipoma will be measured and subjects will be asked how they feel. At the end of the treatment period the physical examination, blood test and electrocardiogram will be repeated.

The insertion of the microdialysis probes under the skin into the fat tissue could be uncomfortable, but numbing medication will be injected first to prevent this problem. At higher doses, isoproterenol could lower blood pressure and increase pulse rate. This should not happen at the doses used, but blood pressure and pulse will be monitored throughout the study. Prednisolone, at higher doses, could decrease the body's production of cortisone. This should not happen at the doses being used, but cortisone in the body will be measured during the trial. Blood tests involve the discomfort of a needle going through the skin of the arm, possible bruising and rarely fainting or infection. Trained technicians and sterile needles will minimize these risks.

  Eligibility

Ages Eligible for Study:   18 Years to 60 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • You are a man or a woman between the ages of 18-60, inclusive.
  • You have a body mass index (BMI) between 20 and less than 40 kg/m2. BMI is a number calculated from your height and weight.
  • You have a lipoma (a benign fatty tumor) that is 1 inch or more in diameter under the skin of your abdomen or on another area of your body that is easily accessible to study (such as the thigh).
  • You have not gained or lost more than 11 pounds in the last 3 months.
  • Your exercise routine has been stable for the last 3 months or you are sedentary. Sedentary means you do less than 60 minutes of exercise per week.

Exclusion Criteria:

  • You have a history of heart or blood vessel disease.
  • Your blood pressure is above 140/90 mmHg.
  • You have type 1 diabetes.
  • You have a history of kidney or liver disease.
  • You have thyroid disease that has not been treated.
  • You are a smoker.
  • You use a Beta-2 (B2) adrenergic stimulator (a type of drug used to treat asthma), a beta adrenergic blocker (a type of drug used to treat blood pressure) or glucocorticoid medications (a type of drug used to treat immune system disease).
  • You have a problem with alcoholism or other substance abuse.
  • You are pregnant or breast feeding.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00624416

Locations
United States, Louisiana
Pennington Biomedical Research Center
Baton Rouge, Louisiana, United States, 70808
Sponsors and Collaborators
Pennington Biomedical Research Center
Lipothera
Investigators
Principal Investigator: Leanne Redman, Ph.D. Pennington Biomedical Research Center
Study Director: Frank Greenway, M.D. Pennington Biomedical Research Center
  More Information

No publications provided

Responsible Party: Frank Greenway, Principal Investigator, Pennington Biomedical Research Center
ClinicalTrials.gov Identifier: NCT00624416     History of Changes
Other Study ID Numbers: PBRC27015
Study First Received: February 15, 2008
Results First Received: February 10, 2011
Last Updated: May 21, 2012
Health Authority: United States: Institutional Review Board

Keywords provided by Pennington Biomedical Research Center:
Obesity therapy
fat
drug mechanism
adipose tissue
cellular pharmacology

Additional relevant MeSH terms:
Lipoma
Neoplasms, Adipose Tissue
Neoplasms, Connective and Soft Tissue
Neoplasms by Histologic Type
Neoplasms
Adrenergic Agents
Isoproterenol
Adrenergic Agonists
Methylprednisolone acetate
Prednisolone acetate
Cortisone
Prednisolone
Methylprednisolone
Methylprednisolone Hemisuccinate
Prednisolone hemisuccinate
Prednisolone phosphate
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Physiological Effects of Drugs
Anti-Inflammatory Agents
Therapeutic Uses
Adrenergic beta-Agonists
Bronchodilator Agents
Autonomic Agents
Peripheral Nervous System Agents
Anti-Asthmatic Agents
Respiratory System Agents
Cardiotonic Agents
Cardiovascular Agents

ClinicalTrials.gov processed this record on April 14, 2014