Merck Pauses Development Of MK-8507 In HIV Infection

  • Merck & Co Inc MRK announced an update regarding the Phase 2 IMAGINE-DR trial (MK-8507-13), evaluating the combination of MK-8507 and islatravir (ISL) as a once-weekly oral treatment for HIV-1 infection. 
  • Decreases in total lymphocyte and CD4+ T-cell counts were observed in study participants randomized to receive ISL+MK-8507. 
  • The external Data Monitoring Committee (eDMC) review determined that this effect was related to treatment with the combination of ISL+MK-8507.
  • The most significant decreases were seen in the arms of the study receiving the highest doses of MK-8507 (200 mg and 400 mg). 
  • At the recommendation of the eDMC, Merck is stopping dosing in the trial, with continued monitoring of study participants. 
  • The company has notified investigators and paused the development of MK-8507. 
  • Price Action: MRK shares are down 1.26% at $82 during the premarket session on the last check Friday.
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Posted In: BiotechNewsHealth CareGeneralBriefsHIVHIV treatmentPhase 2 Trial
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