3 Feb 2010
Today, I was able to follow Dr. Fatima around the PHRU clinic working with HIV infected patients. I have been dying to get exposed to patient practice here. There are challenges that are specific to the 3rd world and to the HIV population that I was aware of and prepared to handle but when I was actually face to face with the patients who are dealing with these obstacles it was much harder than I imagined. For instance, out of the seven patients I saw this morning, three had to be counseled on medication adherence. It is fairly common for patients and study participants to undervalue the importance of adhering to their ARV regimens. The two most significant reasons for the need of proper adherence are 1) to prevent development of resistance to ARV drugs – this is an issue worldwide but extremely crucial in SA because of the lack of access to alternative medications if resistance does develop to one that the patient is currently on.
Currently there are 2 regimens used in SA –
A: includes the following 3 drugs
*D4T-> metabolic side effects include lipodystrophy (the shifting of body fat to the abdominal area and thinning of limbs), lactic acidosis (the buildup of lactic acid due to mitochondrial dysfunction), and peripheral neuropathy (irritating nervous sensitization in the feet primarily)
*3TC/lamivudine
*Efavirenz or Nevirapine
B: if the patient’s VL does not suppress on regimen A or if patient develop a severe case of lactic acidosis, the patient will be switched to the following regime.
*AZT/zidovudine
*DDi/didanosine
*Lopinavir/RTV/ Aluvia—a PI
If patients do not adhere to these regimens or are unresponsive for some reason, their final option is death.
These two regimens are the only two options available in SA due to the cost of medications. Fortunately, for the patients and study participants at the PHRU, the medications and doctors consults are free of charge. The PHRU is funded by USAID. Go America!
The second reason it is crucial for patients to adhere to their medication when participating in studies is because the study investigator has no choice but to remove them from the study and discontinue ARV medication because they will no longer fit into the criteria of the study and would invalidate the study if included in the results AND the PHRU cannot continue to provide the drugs because they will no longer be paid for by the sponsors since they cannot be in the study any longer.
People who refuse to adhere (after exhaustive counseling) to their medication regimen will no longer receive free ARVs and will die within months or at most a few years.
Today Dr. Fatima had to explain this to a man who has not adhered for many months and told him it was his last chance. The severity of the statement hit me hard, and I had to restrain the overwhelming distress that I’m sure was all over my face.
In addition to lack of alternative regimens, South Africans are also restricted by the availability of medications to treat opportunistic infections and diseases that would not be as inhibitory in developed nations. For instance, a woman had very high cholesterol and Dr. Fatima had to tell her that there was nothing she could give her because the cholesterol medication that Bara could provide (had free access to) has life threatening side effects if taken with her ARVs and the other wouldn’t be effective for her situation. There is a 3rd medication ideal for her but she would have to pay out of pocket (which is typically not an option for most SA). Fortunately, this particular patient seemed as though she may be able to afford the medication.
Also, all infections, sicknesses, and diseases not related to HIV are exaggerated in HIV + people due to their repressed immune system. Today, I saw a ringworm the size of my fist due to this exaggerated effect.
I conducted the HIV dementia test on 2 patients today to analyze the effect of HIV on their brain level activity. HIV is drawn to the brain and can cause severe dementia. Nevirapine is the best ARV available in SA to prevent dementia because it penetrates the CNS very effectively to combat the virus. The first woman I conducted the test on scored the highest possible score; the second man I tested scored very, very low reflecting inadequate brain activity. Knowing a patient’s level of dementia allows a doctor to counsel the patient in the correct and most effective manner.
Today, I was definitely overwhelmed with emotions, knowledge and concern during my short time with Dr. Fatima, but still… I can’t wait to become more knowledgeable and more exposed to this population.
Side note:I have submitted CV (resume) to Dr. Coceka to be included in packet for study approval by Ethics Committee Board so that I can be included in the study team for the premature delivery study.