icon-    folder.gif   Conference Reports for NATAP  
 
  Conference on Retroviruses
and Opportunistic Infections
Denver, CO 80202, United States
February 22 - 25, 2026
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Islatravir and Ulonivirine Create a Combination With a High Barrier to Resistance In Vitro
 
 
  CROI 2026
 
Tracy L. Diamond, Winnie Ngo, Min Xu, Silveria Rodriguez, Jay A. Grobler, Ernest Asante-Appiah
Merck & Co., Inc., Rahway, NJ, USA
 

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• ISL+ULO combination more effectively suppressed viral breakthrough and demonstrated a higher barrier to the emergence of resistance than either compound on its own
• The compounds demonstrated complementary resistance profiles which support further clinical development of ISL/ULO as a once-weekly oral treatment for HIV-1

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