Introduction: Obicetrapib is a novel cholesteryl ester transfer protein (CETP) inhibitor with promising lipid-lowering effects. While earlier CETP inhibitors have shown inconsistent cardiovascular outcomes and safety concerns, the efficacy and safety of obicetrapib remain under active investigation.
Methods: We systematically searched PubMed, Embase, and Cochrane Central databases for randomized controlled trials (RCTs) comparing obicetrapib versus placebo in adults with dyslipidemia or at high cardiovascular risk. We pooled mean differences (MDs) with 95 % confidence intervals (CI) with a random effects model. We used R software version 4.4.2 for statistical analysis.
Results: We included 7 RCTs comprising 3381 participants, of whom 2151 (63 %) received obicetrapib. The mean age was 64.3 years, and 36 % were women. Compared with placebo, obicetrapib significantly reduced mean LDL-C (MD: -37.21 %; 95 % CI: -41.53 to -32.90; p < 0.01; I2=64 %), lipoprotein(a) (MD: -37.16 %; 95 % CI: -43.63 to -30.70; p < 0.01, I2=48 %), apolipoprotein B (MD: -24.65 %; 95 % CI: -28.71 to -20.59; p < 0.01; I²=83 %), non-HDL-C (MD: -31.90 %; 95 % CI: -34.81 to -28.99; p < 0.01; I2=0 %), and triglyceride levels (MD: -7.21 %; 95 % CI: -11.13 to -3.30; p < 0.01; I2=0 %). Interestingly, obicetrapib also reduced the incidence of new-onset diabetes (RR: 0.88; 95 % CI: 0.80 to 0.97; p = 0.01; I²=0 %). In contrast, obicetrapib significantly increased HDL-C (MD: 142.17 %; 95 % CI: 117.56 to 166.78; p < 0.01; I2=98.3 %), total cholesterol (MD: 11.94 %; 95 % CI: 5.61 to 18.28; p = 0.01; I2=91 %), and apolipoprotein A1 concentrations (MD: 52.76 %; 95 % CI: 41.87 to 63.66; p < 0.01; I²=94 %). There were no significant differences in adverse events.
Conclusion: Among patients with dyslipidemia and/or high cardiovascular risk, obicetrapib significantly reduces LDL-C, lipoprotein(a), apolipoprotein B, and non-HDL-C. No significant differences were observed in adverse events, supporting the favorable safety profile of obicetrapib.
Keywords: CETP inhibitor; Dyslipidemia; LDL cholesterol; Lipoprotein(a); Obicetrapib.
© 2025 The Authors. Published by Elsevier B.V.