Cost-Effectiveness of Amphotericin B

Cost-Effectiveness of Different Formulation of Amphotericin B in Private and Public Hospitals in Southern Brazil

Invasive fungal infections (IFIs) are complications that happen in the hospital, usually in patients hospitalized for long periods in intensive care units (ICU) after invasive procedures, and in specific populations, such as cancer patients. The aim of this study is to determine the direct and indirect hospital costs with different formulations of amphotericin B (deoxycholate, lipid complex and liposomal) in different public and private hospitals in the city of Curitiba, Paraná, Brazil.

Study Overview

• Status: Unknown
• Conditions: Invasive Fungal Infections
• Intervention / Treatment: Other: None intervention

Detailed Description

BACKGROUND There are several American studies on the costs that the antifungal represents in the hospital bills, but in Brazil we do not have this type of study (WINGARD 2007; GREENE 2007). The American studies cannot be extrapolated to Brazil because the cost of drugs is different as well as other hospital charges. Furthermore, in Brazil spending on public medicine, governed by the Unified Health System (SUS) are different from those employed in the complementary health services (private health services). For these reasons, knowledge of the percentage they represent in the antifungal hospital bills in order to define the actual cost-effectiveness of different formulations of amphotericin B, considering length of hospital adverse events and mortality is needed.

OBJECTIVES:

Determine the direct and indirect hospital costs with different formulations of amphotericin B (deoxycholate, lipid complex and liposomal) in different public and private hospitals in the city of Curitiba, Paraná, Brazil.

Specifics

1. Measuring the total cost of hospitalization with antifungal treatment.
2. Measure the direct spending each formulation of amphotericin B
3. Measuring the indirect costs related to the nephrotoxicity of different formulations of amphotericin B
4. Assemble a model of cost-effectiveness of different formulations of amphotericin B

METHODS

This is a retrospective, observational, cohort study economic. Database of admissions of patients who used antifungal in all private hospital from an specific private health system (more than 5 hospitals) and databases of two large public hospitals in Curitiba (Evangelical University and the Clinical Hospital).

Patients over 18 years of age who used any formulation of amphotericin B will be included.

The data will be evaluated by the principal diagnosis ICD10 obtained at admission or discharge, the total length of stay, length of hospital stay before antifungal start, length of stay after initiation of antifungal drug, which formulation of amphotericin B used, the necessity and amount of dialysis. Also we will assess the final outcome of the patient (death or cure). Other epidemiological data such as age and gender will be evaluated.

A cost analysis will be based on total bill of the patient, the cost of antifungal, cost throughout the dialysis procedure, cost of laboratory tests used in monitoring during treatment with amphotericin (complete blood count, electrolytes, renal function, partial urine, function liver, electrocardiogram). The cost will be measured in American Dollar. These data were obtained from a similar study used for costing with antifungals in invasive aspergillosis in the USA (KIM 2011).

Data will be analyzed according to the type of variable. Means or medians will be used for continuous variables with standard deviation. Statistical methods for comparing means or medians will be parametric or non-parametric, as well as chi-square test for dichotomous variables. The data will be considered statistically significant when a difference of 5% (p <0.05) occur. Other multivariable method can be applied according with the results.

Informed consent is not necessary because is a retrospective cohort with data obtained from medical charts, without any intervention.

Principal investigator and co-investigator will be the sponsor for fill the request. All the survey will be fulfilled by investigator and co-investigator. The survey is attached in the end of the project.

This study will be sent for ethics committee for approval before start.

• Study Type: Observational
• Enrollment (Anticipated): 200

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

This is a study of pharmacoeconomics. Patients who used amphotericin B e total cost of hospitalization.

Description

Inclusion Criteria:

• Patients over 18 years of age who used any formulation of amphotericin B will be included

Exclusion Criteria:

-

Study Plan

How is the study designed?

Number of groups / cohorts

3

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
desoxycholate; Amphotericin B desoxicholate	Other: None intervention
Anfolipidcomplex; Amphotericin B complex lipid
ABLiposomal; Amphotericin B liposomal

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Cost	The outcome will measured in US dollar.	Fungal infection at day 100

Collaborators and Investigators

• Sponsor: Hospital Universitario Evangelico de Curitiba

Study record dates

Study Major Dates

• Study Start: September 1, 2015
• Primary Completion (Anticipated): December 1, 2015
• Study Completion (Anticipated): February 1, 2016

Study Registration Dates

• First Submitted: March 20, 2015
• First Submitted That Met QC Criteria: August 17, 2015
• First Posted (Estimate): August 19, 2015

Study Record Updates

• Last Update Posted (Estimate): August 19, 2015
• Last Update Submitted That Met QC Criteria: August 17, 2015
• Last Verified: August 1, 2015

More Information

Terms related to this study

• Keywords: pharmacoeconomics
• Additional Relevant MeSH Terms: Infections; Bacterial Infections and Mycoses; Mycoses; Invasive Fungal Infections
• Other Study ID Numbers: teva