Page 34 - GALENIKA MEDICAL JOURNAL
P. 34

MK-0616                                            lowered during more than two years of follow-up, suppor-
                                                             ting the potential for a lasting treatment effect. Recently,
             MK-0616 is an oral macrocyclic PCSK9 inhibitor currently   at the American Heart Association conference (November
          in clinical trial phase. The second phase of clinical trials has   2023), the first results of this therapy in humans (phase Ib
          shown that orally administered PCSK9 inhibitors at daily do-  clinical trial) were presented, showing good and promising
          ses ranging from 6 to 30 mg resulted in a reduction of LDL   outcomes .
                                                                     52
          cholesterol by up to 60.9% compared to placebo after an
          8-week follow-up period in patients with hypercholestero-
          lemia and atherosclerotic cardiovascular disease previously
          treated with statins .
                          49
             PCSK9  vaccines  represent  a  new  therapeutic  strategy
          that  would  enable  the  intrinsic  production  of  antibodies
          against  PCSK9 .  A  liposomal  immunogenetic  compound
                      50
          consisting  of  PCSK9-tetanus  peptide  with  an  aluminum
          adjuvant is a new formulation of PCSK9 vaccine that has de-
          monstrated long-lasting synthesis of PCSK9 antibodies and
          reduction in LDL and VLDL cholesterol levels in laboratory
          mice by 51.7% in BALB/c and 19.2% in C57BL/6 animal mo-
          dels .
             50


          Gene therapy for high cholesterol

             Encouraging  research  in  animal  models  has  demon-
          strated the potential for gene therapy for high cholesterol.
          Specifically,  mRNA  encoding  the  PCSK9  gene  (known  as
          VERVE-101) has been synthesized and packaged into lipid
          nanoparticles.  Preclinical  studies  in  mice  and  non-human
          primates (NHP) have shown that a single intravenous ad-
          ministration of VERVE-101 can inactivate the PCSK9 gene in
          the liver . NHP treated with VERVE-101 experienced a signi-
                 51
          ficant reduction in LDL levels, which remained permanently




          Conclusion

          Considering that dyslipidemia is a significant risk factor for cardiovascular diseases, lipid-lowering
          drugs are important not only in primary but also in secondary prevention of these diseases.
          Although according to all current guidelines, LDL levels remain the primary therapeutic target,

          increasing attention is being paid to residual cardiovascular risk. Statins are the most commonly
          prescribed drugs worldwide, although, despite their use, a large number of patients do not achieve
          the recommended LDL target levels. Therefore, statins can be combined with ezetimibe and PCSK9
          inhibitors. Bempedoic acid is an approved therapeutic alternative for patients who do not tolerate
          statins. Inclisiran is a PCSK9 inhibitor counterpart, however, the use of inclisiran could improve
          patient compliance due to its dosing regimen. Pelacarsen and olpasiran are future therapeutic
          strategies aimed at lowering Lp(a), which is an independent risk factor for cardiovascular diseases.
          Evinacumab, lomitapide, mipomersen, volanesorsen, and olezarsen are drugs that primarily affect
          various steps in the metabolism of atherogenic lipoproteins, thus representing a significant new

          approach in cardiovascular disease prevention. In the future, the results of ongoing randomized
          controlled trials are expected to definitively demonstrate the effectiveness of these new therapeutic
          options for lowering lipid levels in the prevention of cardiovascular diseases.



          32     DOI: 10.5937/Galmed2409031L
   29   30   31   32   33   34   35   36   37   38   39