Beta Blocker for Chronic Wound Healing

Beta Adrenergic Receptor Modulation of Burn Wound Healing

The purpose of this study is to evaluate the efficacy and safety of treatment of chronic cutaneous ulcers and burn wounds with topical beta adrenergic antagonists (Timoptic®).

Study Overview

• Status: Terminated
• Conditions: Burns; Ulcer
• Intervention / Treatment: Drug: Timoptic; Other: Placebo

Detailed Description

The purpose of this study is to learn more about how to heal venous leg ulcers faster and to test the safety of a drug and see what effects it has on a venous leg ulcer.

You will:

• be interviewed and examined
• have a physical exam
• have blood and urine tested
• have photographs taken of the wound
• apply medication to the leg ulcer as directed

• Study Type: Interventional
• Enrollment (Actual): 40
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • California
    • Mather, California, United States, 95655
      • Va Medical Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 85 years (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Any race btwn 18 and 85 years of age, inclusive;
• Male or female, neither pregnant nor lactating.
• Informed consent;

• Have at least 1 lower extremity ulcer in the gaiter area (knee to ankle):

  1. Surface area of ≥2 sq. cm. to ≤20 sq. cm.; Ulcer with largest surface area meeting inclusion criteria will be selected.
  2. If 2 ulcers present with the same surface area, ulcer of longest duration selected.
  3. Study ulcer must be at least 2 cm from any other ulcer on same extremity.

  4. A viable wound bed free of necrotic tissue post-debridement, if debridement is indicated.

     5. Have an Ankle Brachial Index (ABI) >0.7; 6. Presence of either dorsalis pedis or posterior tibialis pulses by Doppler on the study extremity; 7. Have a non-healing (open) ulcer for at least 1 month. Subjects who failed conservative therapy are eligible for the study; 8. Comply with a trial (13 to 17 days) of protocol-specified standard care prior to randomization; 9. Two or more of the following: dermatitis, atrophie blanche, varicosities, hyperpigmentation or lipodermatosclerosis;

     Exclusion Criteria:

• Decrease in wound surface area of >35% btwn Screening and Visit 1 (Randomization);
• Cellulitis, osteomyelitis, ulcer with exposed bone, tendon or fascia, or purulent exudates in ulcer area;
• Grade IV ulcer;
• Evidence of study ulcer infection;
• Study ulcer of non-venous etiology;
• Acquired or are known to be infected with HIV;
• Uncontrolled diabetes mellitus;
• Immunodeficiency as defined by serum IgG, IgA, and IgM less than one-half the lower limit of normal;
• Severe protein malnutrition as defined by serum albumin <2.5 g/dL;
• Severe anemia defined as a total of hemoglobin of <10 g/dL for males or <8 g/dL for females;
• Chronic renal insufficiency requiring dialysis;
• Serum aspartate aminotransferase (AST, SGOT, GOT) or serum alanine aminotransferase (ALT, SGPT, GPT) levels greater than twice the upper limit of normal;
• New York Heart Association Functional Classification of IV;
• Deep vein thrombosis (DVT) w/in last 6 weeks or clinical evidence of current DVT;
• Arterial revascularization of the study extremity w/in previous 6 months from the date of Screening Visit;
• History, w/in previous 12 months from date of Screen Visit, of alcohol or drug abuse, particularly methadone or heroin;
• Received previous treatment with the following during the 60 days prior to Screening: Immunosuppressive agents, radiation, chemotherapy, growth factors at the site of the study ulcer, split- or full-thickness skin graft at the site of the study ulcer, biologically-active cellular or acellular product(s) at the site of the study ulcer, investigational drug or device
• Received previous treatment with systemic corticosteroids prior to Screening (Chronic corticosteroids w/in 90 days or short course corticosteroids w/in 30 days)
• Been hospitalized for treatment of any venous ulcer w/in the previous 30 days from Screening.
• Asthma or a history of asthma, obstructive pulmonary disease, myasthenia gravis, hyperthyroidism, history of heart block

Study Plan

How is the study designed?

Design Details

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

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: 1; This group receives topical beta adrenergic antagonists (Timoptic) plus standard of care.	Drug: Timoptic; Timoptic to be applied to the target wound daily for up to 12 weeks.; Other Names: beta adrenergic antagonists
PLACEBO_COMPARATOR: 2; The group will be given standard of care with placebo medication.	Other: Placebo; Saline solution with no active ingredients to be applied to the target wound daily for up to 12 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
The primary efficacy parameter will be complete ulcer healing, which is defined as 100% epithelialization with no drainage or need for an absorptive dressing.	12 weeks

Secondary Outcome Measures

Outcome Measure	Time Frame
100% re-epithelialization will be clinically determined at each visit by the Investigator.	12 weeks

Collaborators and Investigators

• Sponsor: University of California, Davis
• Investigators: Principal Investigator: Rivkah R Isseroff, MD, University of California, Davis

Publications and helpful links

Helpful Links

• University of California-Davis Department of Dermatology Clinical Research

Study record dates

Study Major Dates

• Study Start: June 1, 2005
• Primary Completion (ACTUAL): June 1, 2007
• Study Completion (ACTUAL): June 1, 2007

Study Registration Dates

• First Submitted: August 24, 2006
• First Submitted That Met QC Criteria: August 24, 2006
• First Posted (ESTIMATE): August 25, 2006

Study Record Updates

• Last Update Posted (ESTIMATE): April 7, 2015
• Last Update Submitted That Met QC Criteria: April 6, 2015
• Last Verified: April 1, 2015

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Physiological Effects of Drugs; Adrenergic Agents; Neurotransmitter Agents; Molecular Mechanisms of Pharmacological Action; Anti-Arrhythmia Agents; Antihypertensive Agents; Timolol; Adrenergic beta-Antagonists; Adrenergic Antagonists
• Other Study ID Numbers: 05-06-00351