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. 2023 Jul 1;8(4):487–506. doi: 10.1016/j.ncrna.2023.06.002

Table 2.

Aptamer.

No Study registration number (ref) Study Population Age Group Intervention Arm n Comparator arm n Time to follow Up Primary Endpoint Outcome: Mean Difference (Treatment vs Placebo) Adverse Events
1 10.1093/eurheartj/ehs232 NCT00932100 (Povsic, TJ et al., 2013) Non-ST-elevation ACS patients with planned early cardiac catheterization via femoral access <24h. Past medical history of CHF, MI, Previous PCI, Previous CABG, HTN, T2DM, Renal Insuficiency, Stroke, Current tobacco use. 25–75 years old Pegnivacogin 1 mg/kg and Anivamersen reversal 0.075, 0.20, 0.40, 1.00 mg/kg REG1 25–100% (n = 40,113,119,194) Heparin 161 30 days Primary endpoint: total ACUITY bleeding. Secondary endpoints: major bleeding and ischaemic event. Total bleeding (%) 33.7, 2.7, 3.7, −1.3; Major bleeding (%) 10, 1, −2, −3; Ischaemic event (%) −2.7 (0.2,1.4) REG1 n = 60. Heparin n = 55. 3 incidence of allergic-like adverse events within 24 h of drug administration, 2 of 3 are SAE. REG 1 (hives 0.2%, hypotension 2.4%, rash 0%, dyspnoea 0.9%). Heparin (hives 0%, hypotension 1.9%, rash 0.7%, dyspnoea 0%)
2 10.1177/1076029610384114 (Arzamendi D et al., 2011) CAD patient on double antiplatelet therapy and normal volunteers (CAD patient n = 27 (Male (n = 22), Hypertension (n = 9), Hypercholestrolemia (n = 16), T2DM (n = 4), Smoker (n = 10), ACS (STEMI n = 17; NSTEMI n = 1; UA = 9)), Healthy volunteers n = 5) 18–75 years old exvivo treated pretherapy (incubated 5 min before the onset of perfusion) or 10 min posttherapy on damaege arteries with: ARC1779 (25, 83, and 250 nmol/L), or Abciximab (100 nmol/L), or placebo n = 27 placebo n 15 min Platelet function Platelet adhesion:
Pretherapy with ARC1779 or Abciximab in patients taking ASA and CPG (n CAD = 17) effect on platelet adhesion (unit: platelets × 10^6/cm2).
ARC1779 83 nmol/L: 4.8 (p < 0.05)
ARC1779 250 nmol/L: 3.8 (p < 0.05)
Abciximab 100 nmol/L: 2.9 (p < 0.05)
Placebo: 7.3 (p < 0.05)
Pretherapy with placebo in healthy patient (n = 5) effect on platelet adhesion: 81.9 ± 23.6 × 10^6 platelets/cm2
Posttherapy with ARC1779 in CAD (n = 10) p > 0.05 in platelet adhesion compared to placebo.
Platelet aggregation
Abciximab abolished platelet aggregation in response to TRAP-1, ADP, and AA both in healthy volunteers and in patients.
Collagen-induced aggregation: in healthy volunteers; averaged 18 Ω reduce to 2 Ω with abciximab, but unaffected by ARC1779 (18 Ω)
in CAD patient; reduced to 3 Ω by abciximab, and unaffected by ARC1779 (4 Ω)
Platelet activation
This was done on blood samples from healthy volunteers after the perfusion experiments. Neither abciximab nor ARC1779 has a significant effect on P-selectin or vWF expression. Platelet−leukocyte binding increased after blood perfusion (control) compared with nonperfused blood (baseline), not significantly affected by ARC1779 or abciximab.
3 10.1177/2048872617703065 (Staudacher DL et al., 2019) Healthy volunteers and patient with ACS ≥18 years old (whole blood sample) Pegnivacogin or Pegnivacogin 1 mg/kg + Anivamersen (RNA Aptamer reversal agent) n Placebo n 20 min CD62P-expression, PAC-1 binding Pegnivacogin when compared with placebo
CD62P expression
20 mikroM ADP (n = 9): -13.38 p = 0.027
1 mikroM ADP (n = 24): -6.59 p = 0.031
PACbinding
20 mikroM ADP (n = 11): -16.98 p = 0.0098
1 mikroM ADP (n = 25): -9.59 p = 0.0008
Pegnivacogin effect on ADP-activated platelets could be completely negated by Anivamersen, compared with Placebo
CD62P expression
20 mikroM ADP (n = 10): -2.42 p = 0.922
1 mikroM ADP (n = 3): -2.38 p = 0.449
Blood from healthy subject after ex-vivo incubation with 150 μl pegnivacogin: platelet aggregation −3.66% p = 0.002, n = 10
Patient CAD treated dual antiplatelet after 20min iv 1 mg/kg pegnivacogin: platelet aggregation −56.79% p = 0.020, n = 3
4 10.1161/CIRCULATIONAHA.107.745687 (Chan, MY et al., 2008) Subjects with stable CAD 50–75 years old aptamer (RB006) sd 1 min iv ASO (RB007) sd 3h iv Group 1 = 28; 6,6,8,8 (RB006 15,30,50,75 mg with RB007 30,60,100,150 mg)
Group 2 = RB006+Placebo antidote = 14; 3,3,4,4
placebo 8 day 7 safety, tolerability, pharmacodynamic RB006 increased the activated partial thromboplastin time dose dependently; the median activated partial thromboplastin time at 10 min after a single intravenous bolus of 15, 30, 50, and 75 mg RB006 was 29.2, 34.6, 46.9, and 52.2 s, P < 0.0001. RB007 reversed the activated partial thromboplastin time to baseline levels within a median of 1 minute with no rebound increase through 7 days. No major bleeding. 10% experienced non–dose-dependent and mainly mucocutaneous bleeding.
5 NCT00715455 undergo non-urgent PCI have a prior indication for PCI pre-treatment with aspirin and CPG 18–80 years old RB006 1 mg/kg/IV, SDRB007 0.2:1 (50% efficacy)/2:1 (100%), SD 20 UFH IV treated 4 48 hours 14 days major bleeding 48 h/hospital discharge all-cause death, MI-event, urgent revasc 14 days 1.0 Median (0.9, 1,1) p < 0.001 A total of 4 AEs, 2 patients from treatment group2 patients from control/comparison group