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Effect of Weight and/or Obesity on Anidulafungin Drug Concentrations

This study has been completed.
National Center for Research Resources (NCRR)
University of Texas Southwestern Medical Center
Information provided by (Responsible Party):
Ron Hall, Texas Tech University Health Sciences Center Identifier:
First received: March 2, 2011
Last updated: June 9, 2014
Last verified: June 2014
This study will find how weight affects the dosing of a drug called anidulafungin. Currently, the amount of anidulafungin a patient receives is the same regardless of the patient's weight.

Condition Intervention Phase
Drug: Anidulafungin
Phase 4

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Official Title: Population Pharmacokinetic Analysis of Anidulafungin in Normal, Overweight and Obese Volunteers

Resource links provided by NLM:

Further study details as provided by Texas Tech University Health Sciences Center:

Primary Outcome Measures:
  • Serum clearance of anidulafungin [ Time Frame: 0-72 hours ]

Enrollment: 18
Study Start Date: January 2011
Study Completion Date: November 2012
Primary Completion Date: November 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Anidulafungin
Six volunteers will have a body mass index (BMI) less than 25 kg/m2, 6 will have a BMI 25-40 kg/m2, and 6 will have a BMI greater than 40 kg/m2.
Drug: Anidulafungin
Anidulafungin 100 mg IV (each volunteer will only receive one dose of the study drug)
Other Name: Eraxis


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male and female subjects, age > 18 years old, of all racial and ethnic origins.
  • Non-English-speaking Spanish speakers will be included in the study.
  • The investigators are recruiting six normal or underweight (BMI < 25 kg/m2), six overweight or obese (BMI 25-40 kg/m2), and six extremely obese (BMI > 40 kg/m2) for this study. This index is calculated using the volunteer's height and weight (Formula: weight (lb) / [height (in)]2 x 703). Half of each group will be male; the other half will be female.

Exclusion Criteria:

  • Pregnant or nursing or unwilling to use a reliable contraception method during the study. The effects of anidulafungin on pregnancy are unknown. In addition, the metabolic changes that accompany pregnancy may alter the concentration-time profile of anidulafungin, so that the pregnancy and postpartum state would be a confounding variable.
  • Abnormal liver function tests: transaminases > 3 times upper limit of normal, Alkaline phosphatase > 3 times upper limit of normal, total bilirubin > 3 times upper limit of normal.
  • History of allergies to echinocandins.
  • Echinocandins are contraindicated for any reason.
  • Volunteers unwilling to comply with study procedures.
  • Suspected or documented systemic fungal infection.
  • Concomitant use of rifamycins, tacrolimus, or cyclosporine.
  • Current participation or previous participation within 28 days of enrollment in another research study that involves the use of medication, contrast, or any other compound that may alter blood count and/or blood chemistry (liver function, kidney function or electrolyte balance) (Unless waved by PI).
  • Donation of 450mL (one unit) of blood or more within 8 weeks (56 days) prior to study enrollment (Unless waved by PI).
  • Creatinine Clearance < 70 ml/min as estimated by the Cockcroft-Gault equation.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01307930

United States, Texas
University of Texas Southwestern Medical Center
Dallas, Texas, United States, 75390
Sponsors and Collaborators
Texas Tech University Health Sciences Center
National Center for Research Resources (NCRR)
University of Texas Southwestern Medical Center
Principal Investigator: Ronald Hall, PharmD, MSCS Texas Tech UHSC
  More Information

Responsible Party: Ron Hall, Associate Professor, Texas Tech University Health Sciences Center Identifier: NCT01307930     History of Changes
Other Study ID Numbers: A10-3616
5UL1RR024982-02 ( US NIH Grant/Contract Award Number )
Study First Received: March 2, 2011
Last Updated: June 9, 2014

Keywords provided by Texas Tech University Health Sciences Center:
Fungal infection

Additional relevant MeSH terms:
Nutrition Disorders
Body Weight
Signs and Symptoms
Antifungal Agents
Anti-Infective Agents processed this record on April 28, 2017