Effectiveness of Modafinil for Treating Fatigue in Adults With HIV/AIDS

• Fatigue Severity Scale (FSS) [ Time Frame: Measured at baseline and Week 4 ]
  The FSS is a 9-item self-report scale that measures the impact of fatigue on everyday functioning. Each item is rated on a scale of 1 to 7. Total scores range from 9 to 63, with a higher value indicating greater impairment due to fatigue.
  
  
• Role Function Scale Outcome [ Time Frame: Measured at baseline and Week 4 ]
  The Role Function Scale includes 10 items drawn from the Short Form 36-item Health Survey (SF-36) and other SF versions. It is intended to assess the extent to which fatigue has a behavioral impact on daily activities. Scores of frequency in the past week, on a 5-point scale, are summed with higher scores signifying greater role impairment. Scores range from 10 to 50.
  
  

• CD4 Cell Count [ Time Frame: Measured at baseline and Week 4 ]
  CD4 cell count is a laboratory marker providing an indication of immune functioning. Blood was drawn for this measure at baseline and week 4. The reference range for CD4 cell count is 490-1740, and a clinically significant change is defined as a change of >= 100 cells. A higher number is associated with better immune functioning.
  
  
• HIV RNA Viral Load [ Time Frame: Measured at baseline and Week 4 ]
  HIV RNA viral load assay is a laboratory measure indicating viral activity. Because of the large range of possible values (50-100,000 copies), this measure is presented in log10. We entered the log10 value of 1.69 when the laboratory result stated "under 50 copies," which was the assay's lowest limit of detectability during the study.
  
  

Fatigue is a common problem for many people with HIV/AIDS, interfering with daily activities and serving as a significant barrier to working among those whose health is otherwise stable or restored by antiretroviral (ARV) medication. Fatigue in HIV is associated with disability and diminished quality of life. It may be caused by ARVs or by the virus itself. This study will determine if modafinil can reduce fatigue in HIV/AIDS patients.

This study will last 12 weeks. Participants will be randomly assigned to receive either modafinil or placebo daily for 4 weeks. Participants who show an improvement in symptoms will receive modafinil for an additional 8 weeks. Participants who do not respond to modafinil will have the opportunity to receive other drug treatments. All participants will have weekly study visits for the first 4 weeks of the study and biweekly visits for the remainder of the study. At each visit, participants will complete various tasks to determine cognitive function and self-report scales will be used to determine symptoms of depression and fatigue.