Undetectable VL, Falling CD4s
Oct 4, 2006
I am 52, started Reyataz, Truvada, norvir in May with VL of 60,000, 117 T cells. VL quickly went undetectable, but CD4s went up to 295 and have consistently fallen..245, now 155. What could be the cause of this. I read that low CD4s, despite undetectable VL, are an indicator of more rapid disease progression. Sort of scary. Any ideas? (Percentages have ranged from 13% starting, high of 17%, 15% now.)
Response from Dr. Wohl
I think it will be important to follow the trends in your CD4 cell count a while longer to see what is up. It is not clear how long you have been on therapy but it looks like about a year.
If this downward trend continues, I would look to make sure you are not infected with HIV-2. Many HIV antibody tests pick up both viruses. Some HIV drugs have less activity against HIV-2. Also, check to make sure you are on no other medications that can reduce CD4 counts. Sulfa antibiotics might be able to have an impact on CD4 cells. If you are on this kind of antibiotic, a switch to atovaquone might be worth a try.
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