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. 2013 Jul 2;5:25. doi: 10.3389/fnagi.2013.00025

Table 1.

Clinical effects of anti-Aβ mAbs on CSF and plasma Aβ, adapted from Mavoungou and Schindowski (2013).

Study/cohort Subcohort size for biomarker evaluation Evaluated biomarker Clinical effect of treatment on biomarker Clinical effect on cognition PK data of mAb References
BAPINEUZUMAB (HUMANIZED 3D6)
201 Phase II Placebo: n = 14 CSF Aßx−42 No changes In small cohort 6% less loss of ADAS-Cog scores after 18 months Approximately 0.3% Salloway et al., 2009
BAPI: n = 20 Total CSF tau No changes
CSF phospho-tau Trend to reduction (p = 0.056) CSF-plasma ratio
Phase II: pooled 201 and 202 Placebo: n = 19 CSFAß1−40 No changes Not determined Not determined Blennow et al., 2012
BAPI: n = 26−27 CSF Aßx−42 Decrease from baseline
CSF Aß1−42 No changes
Total CSF tau No changes
CSF phospho-tau Reduction (p = 0.03)
Phase III: 301 (ApoE4 carrier) Placebo: n = 77 CSF phospho-tau No changes at 0.5 mg/kg In a subcohort of mild cases at 1.0 mg/kg ~30% less loss of DAD scores after 18 months Not determined Salloway et al., 2012
0.5mg/kg: n = 47 CSF phospho-tau Reduction at 1.0 mg/kg
1.0mg/kg: n = 54
Phase III: 302 (ApoE4 non-carrier) Placebo: n = 85 CSF phospho-tau Reduction at 0.5 mg/kg No effect on cognition after 18 months, even not for mild cases Not determined Sperling et al., 2012
0.5mg/kg: n = 127
SOLANEZUMAB (HUMANIZED m266)
Phase II Placebo: n = 8; CSF total Aß40 Increase at high dose No significant cognitive benefit on the ADAS-cog score over after 12-weeks 0.1% Farlow et al., 2012
SOLA: n = 10−11 per dose group CSF total Aß42 Increase at high dose CSF-plasma ratio
CSF free Aß40 Decrease at high dose
CSF free Aß42 Increase at high dose
Plasma total Aß40 Dose-dependent increase
Plasma total Aß42 Dose-dependent decrease
GSK933776 (DISCONTINUED FOR AD)
Phase I Placebo: n = 14; Plasma total Aß Dose-dependent increase Not determined >0.2% GlaxoSmithKline, 2011
GSK933776: n = 3−6 per dose group Plasma free Aß Dose-dependent decrease CSF-plasma ratio
CSF Aß1−38 tau/phospho-tau Increase at the highest dose
No changes
CRENEZUMAB (MABT5 102A)
Phase I MABT: n = 25−31 per regime group Plasma total Aß40 Dose-dependent increase Not determined Not determined Adolfsson et al., 2012
Plasma total Aß40 Dose-dependent increase