More people living with HIV/AIDS reside in South Africa than any other country in the world, and the nation faces colossal challenges in broadening its response to the now-mature and widespread HIV epidemic (WHO, 2005:1). According to South Africa's Medical Research Council, HIV/AIDS has now become the single largest cause of death in South Africa (Dorrington et a/., 2001:6) and has triggered a prominent transferal in the pattern of mortality from the elderly to the young, particularly among young women (Dorrington, 2001:4).
The routine treatment of HIV/AIDS with antiretroviral drugs has transformed HIV-infection from an unvaryingly rapidly terminal illness to a somewhat expensive treatable, chronic disease. Triple therapy or highly active antiretroviral therapy (three-drug combinations of ARVs or HAART) in particular have had paramount impacts on HIV-related morbidity and mortality in settings where these drugs are generally accessible. Objectives of ARV treatment are "maximum, durable suppression of viral load, restoration and/or preservation of immune function, improvement of quality of life and reduction of HIV related morbidity and mortality" (Martinson et a/., 2003:236; Martinez et a/., 2007:251; Hellinger, 2006:1; Kumarasamy, 2004:3).
The Joint United Nations Programme on HIV/AIDS (UNAIDS) estimated that a total of 111 827 South Africans were accessing free antiretroviral treatment in the 200 public health sector facilities across 53 districts and a further 60 000 via the private sector by late December 2005 (UNAIDS, 2005:1).
The objective of this study was to review, analyse and interpret the usage and prescribing patterns of antiretroviral drugs in a section of the South African private health care sector for the period 1 January 2005 to 31 December 2006 by utilising a medicine claims database of a pharmacy benefit management company, and to investigate the costs associated with these drugs by performing a quantitative, retrospective drug utilisation review.
It was found that the prevalence as well as the total medicine cost of ARV medicine items had increased during the study period but the average number of ARV medicine items per prescription as well as both the average cost per ARV medicine item and the average cost per ARV prescription decreased during the study period.
Original innovator ARV medicine items and original ARV medicine items with no generic were found to be relatively expensive in comparison with ARV medicine items in general. Conversely, generic ARV medicine items were ascertained to be relatively inexpensive with reference to ARV medicine items in general.
It was perceived that the average cost of ARV medicine items and prescriptions for both genders decreased from 2005 to 2006, while there was an increase in the prevalence of medicine items and prescriptions claimed for both female and male patients. The prevalence and cost of all types of ARV medicine items were found to be higher for female patients in general.
It was also established that the prevalence of patients receiving antiretroviral treatment in the private health care sector peaks at the age of >30 to 244 years, in comparison with the lower age of >25 to 239 years in the public health care sector. ARV medicine items claimed for patients in the age group >35 to 239 years represented the highest percentage of the total medicine cost incurred during both study years for all ARV medicine types.
The majority of ARV medicine items were prescribed by general medical practitioners, and most ARV medicine items were dispensed by community or private institutional pharmacies.
It was determined that combinations of 2NRTI + NNRTI were prescribed with the highest frequency, which is compliant with traditional HAART or 'triple therapy' regimens.
Lastly, it was found that none of the top 20 prescriptions for one, two and six ARV medicine items were compliant with the National Antiretroviral Treatment (ART) Guidelines. The majority of the top 20 prescriptions for three ARV medicine items (92.67 per cent during 2005 and 89.94 per cent during 2006) were compliant with the National ART Guidelines. Finally, less than half of the top 20 prescriptions for four ARV medicine items (49.60 per cent during 2005 and 36.11 per cent during 2006) were compliant with the National ART Guidelines. Only 5.56 per cent and 3.92 per cent of the top 16 prescriptions for five ARV medicine items were compliant with the National ART Guidelines during the two study years respectively / Thesis (M. Pharm. (Pharmacy Practice))--North-West University, Potchefstroom Campus, 2009.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:nwu/oai:dspace.nwu.ac.za:10394/2298 |
| Date | January 2008 |
| Creators | Scheepers, Jenine |
| Publisher | North-West University |
| Source Sets | South African National ETD Portal |
| Detected Language | English |
| Type | Thesis |
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