Prospective Evaluation of Adjusted Body Weight Dosing of Acyclovir in Obesity

Description

Patients receiving acyclovir as standard of care will be enrolled into this study. The currently recommended dosing strategy at our institution for obese patients is to receive intravenous acyclovir dosed per an adjusted body weight \[IBW + 0.4(TBW-IBW)\]. They will have blood drawn once prior to the first dose of acyclovir and 10 times thereafter, over a total time period of 12 hours. These patients will already be hospitalized for other reasons, and will not be required to make additional trips to the hospital. A total of approximately 4-5 tablespoons of blood will be drawn for this study. Ten obese patients and 10 matched control (non-obese) patients will be enrolled.

Conditions

Obesity

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Study Overview

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Study Details

Study overview

Patients receiving acyclovir as standard of care will be enrolled into this study. The currently recommended dosing strategy at our institution for obese patients is to receive intravenous acyclovir dosed per an adjusted body weight \[IBW + 0.4(TBW-IBW)\]. They will have blood drawn once prior to the first dose of acyclovir and 10 times thereafter, over a total time period of 12 hours. These patients will already be hospitalized for other reasons, and will not be required to make additional trips to the hospital. A total of approximately 4-5 tablespoons of blood will be drawn for this study. Ten obese patients and 10 matched control (non-obese) patients will be enrolled.

Prospective Evaluation of Adjusted Body Weight Dosing of Acyclovir in Obesity

Prospective Evaluation of Adjusted Body Weight Dosing of Acyclovir in Obesity

Condition
Obesity
Intervention / Treatment

-

Contacts and Locations

Morgantown

West Virginia University Hospitals, Morgantown, West Virginia, United States, 26506

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.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Age ≥18 years of age
  • * Receiving intravenous acyclovir 5 mg/kg (TBW for normal weight patients and ABW40 for obese patients) as part of their routine care
  • * Weight \> 190% of ideal body weight (IBW) for "obese" patients or weight 80-120% of IBW for matched control patients.
  • * Receipt of acyclovir or a pro-drug of acyclovir (valacyclovir, ganciclovir, valganciclovir, famciclovir) in the prior 24 hours
  • * Serum creatinine \>1.5 mg/dL
  • * Hypersensitivity to acyclovir
  • * Patients requiring ventilator support or vasopressors in the prior 24 hours
  • * Receipt of probenecid, mycophenolate, tenofovir, or zidovudine in the prior 7 days
  • * Significant anatomical deformities that influence body habitus (i.e. amputation)
  • * Prior inclusion in this study

Ages Eligible for Study

18 Years to

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

No

Collaborators and Investigators

West Virginia University,

Aaron Cumpston, PharmD, BCOP, PRINCIPAL_INVESTIGATOR, West Virginia University Medicine

Study Record Dates

2024-12