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AIDS. 2008 Nov 12;22(17):2381-90. doi: 10.1097/QAD.0b013e328317a6eb.

Does less frequent routine monitoring of patients on a stable, fully suppressed cART regimen lead to an increased risk of treatment failure?

Collaborators (165)

Losso M, Duran A, Vetter N, Karpov I, Vassilenko A, Clumeck N, De Wit S, Poll B, Colebunders R, Machala L, Rozsypal H, Sedlacek D, Nielsen J, Lundgren J, Benfield T, Kirk O, Gerstoft J, Katzenstein T, Hansen AB, Skinhøj P, Pedersen C, Zilmer K, Katlama C, Viard JP, Girard PM, Saint-Marc T, Vanhems P, Pradier C, Dabis F, Dietrich M, Manegold C, van Lunzen J, Stellbrink KJ, Staszewski S, Bickel M, Goebel FD, Fätkenheuer D, Rockstroh J, Schmidt R, Kosmidis J, Gargalianos P, Sambatakou H, Perdios J, Panos G, Filandras A, Karabatsaki A, Banhegyi D, Mulcahy F, Yust I, Turner D, Burke M, Pollack S, Hassoun G, Sthoeger Z, Maayan S, Vella S, Chiesi A, Arici C, Pristerá A, Mazzotta F, Gabbuti A, Esposito R, Bedini A, Chirianni A, Montesarchio E, Vullo V, Santopadre P, Narciso P, Antinori A, Franci P, Zaccarelli M, Lazzarin A, Finazzi R, D'Arminio Monforte A, Ridolfo AL, Viksna L, Chaplinskas S, Hemmer R, Staub T, Reiss P, Bruun J, Maeland A, Ormaasen V, Knysz B, Gasiorowski J, Horban A, Prokopowicz D, Wiercinska-Drapalo A, Boron-Kaczmarska A, Pynka M, Beniowski M, Mularska E, Trocha H, Antunes F, Valadas E, Mansinho K, Matez F, Duiculescu D, Streinu-Cercel A, Vinogradova E, Vinogradova D, Mokrás M, Staneková D, González-Lahoz J, Barreiro P, García-Benayas T, Martin-Carbonero L, Soriano V, Clotet B, Jou A, Conejero J, Tural C, Gatell JM, Miró JM, Blaxhult A, Karlsson A, Pehrson P, Ledergerber B, Weber R, Francioli P, Telenti A, Hirschel B, Soravia-Dunand V, Furrer H, Chentsova N, Barton S, Johnson AM, Mercey D, PhillipsQ A, Johnson MA, Mocroft A, Murphy M, Weber J, Scullard G, Fisher M, Brettle R, Clotet B, Antunes F, Clotet B, Duiculescu D, Gatell J, Gazzard B, Horban A, Karlsson A, Katlama C, Ledergerber B, D'Arminio Montforte A, Phillips A, Rakhmanova A, Reiss P, Rockstroh J, Lundgren J, Gjørup I, Kirk I, Mocroft A, Friis-Møller N, Cozzi-Lepri A, Bannister W, Ellefson M, Borch A, Podlekareva D, Holkmann Olsen C, Kjaer J, Peters L, Reekie J.



To investigate whether HIV-infected patients on a stable and fully suppressive combination antiretroviral therapy (cART) regimen could safely be monitored less often than the current recommendations of every 3 months.


Two thousand two hundred and forty patients from the EuroSIDA study who maintained a stable and fully suppressed cART regimen for 1 year were included in the analysis.


Risk of treatment failure, defined by viral rebound, fall in CD4 cell count, development of new AIDS-defining illness, serious opportunistic infection or death, in the 12 months following a year of a stable and fully suppressed regimen was assessed.


One hundred thirty-one (6%) patients experienced treatment failure in the 12 months following a year of stable therapy, viral rebound occurred in 99 (4.6%) patients. After 3, 6 and 12 months, patients had a 0.3% [95% confidence interval (CI) 0.1-0.5], 2.2% (95% CI 1.6-2.8) and 6.0% (95% CI 5.0-7.0) risk of treatment failure, respectively. Patients who spent more than 80% of their time on cART with fully suppressed viraemia prior to baseline had a 38% reduced risk of treatment failure, hazard ratio 0.62 (95% CI 0.42-0.90, P = 0.01).


Patients who have responded well to cART and are on a well tolerated and durably fully suppressive cART regimen have a low chance of experiencing treatment failure in the next 3-6 months. Therefore, in this subgroup of otherwise healthy patients, it maybe reasonable to extend visit intervals to 6 months, with cost and time savings to both the treating clinics and the patients.

[PubMed - indexed for MEDLINE]
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