Pharmacokinetics and Safety of Transdermal Megestrol Acetate

Cachexia Clinical Trial

Official title:

Pharmacokinetics and Safety of Transdermal Megestrol Acetate

Clinical Trial Details — Status: Withdrawn

Administrative data

• NCT number: NCT00163072
• Other study ID #: HM IRB# 18400
• Status: Withdrawn
• Phase: Phase 4
• First received: September 9, 2005
• Last updated: October 24, 2013
• Start date: October 2005
• Est. completion date: December 2012

Study information

• Verified date: April 2007
• Source: Milton S. Hershey Medical Center
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Institutional Review Board
• Study type: Interventional

Clinical Trial Summary

Rationale: Megestrol acetate (Megace®) is a progestin analog that is FDA approved for the palliative treatment of breast and endometrial carcinoma. It is also commonly used as an appetite stimulant, particularly in HIV and cancer patients with poor appetite from their primary disease and/or their therapy. Megace is well absorbed orally, however, many patients, particularly younger ones have difficulty taking oral medications. Transdermal progestins are available and are FDA approved. For example, Ortho EvraTM is a transdermal contraceptive patch containing an estrogen (ethinyl estradiol) and a progestin (norelgestromin).

Key Objectives: Compare the pharmacokinetics of orally administered vs. transdermal Megace and determine if there are any local side effects of the transdermal route.

Description:

Study Population: Patients of any age who are already receiving oral Megace as an appetite stimulant. Patients must have an indwelling IV catheter in order to draw drug levels.

Major Inclusion & Exclusion Criteria: Known hypersensitivity to the transdermal vehicle. Taking any other medicine that would interfere with the Megace assay. Weight less than 10 kg.

Allocation to Groups: Patients will serve as their own controls.

Summary of Procedures: Patients will be on a stable dose of oral Megace. To determine the steady state peak level and half-life for each patient, blood (2cc) will be drawn for a level in clinic 3 hours after an oral dose, then daily for 1-3 days. Patients may then resume their oral Megace, but must stop the medicine at least 5 half-lives prior to the transdermal dose. The transdermal dose will be applied as a gel under a transparent patch in clinic, and blood will be collected prior to, 10, 30, 60, 90, and 120 minutes, and 4 hours after the dose. The patch will be removed after the 4 hour blood level. The patient will return the following day for a 24 hour level, and the patient will be examined briefly for any local effects of the drug or vehicle, and then may resume the oral dose.

Major Risks & Discomforts: Patients will need to be in clinic for 3-5 separate days, one of which will last at least 4 hours, for drug levels to be drawn. There may be mild skin reaction to the transdermal vehicle or the Megace.

Recruitment information / eligibility

• Status: Withdrawn
• Enrollment: 0
• Est. completion date: December 2012
• Est. primary completion date: December 2012
• Accepts healthy volunteers: No
• Gender: Both
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• Patients of any age who are already receiving oral Megace as an appetite stimulant.

• Patients must have an indwelling IV catheter in order to draw drug levels.

Exclusion Criteria:

• Known hypersensitivity to the transdermal vehicle.

• Taking any other medicine that would interfere with the Megace assay.

• Weight less than 10 kg.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Cachexia

Intervention

Drug:
• transdermal Megace
oral vs transdermal levels

Locations

Country	Name	City	State
United States	Hershey Medical Center	Hershey	Pennsylvania

Sponsors (1)

Lead Sponsor	Collaborator
Milton S. Hershey Medical Center

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	pharmacokinetics		2 months	Yes
Primary	safety		2 months	Yes