Table 1: Selected PAD Gene Therapy Trials.
*Outcomes were evaluated for only primary endpoints and did not include any improvement in secondary endpoints.
Angiogenic factors Phase Patients No. of subjects (treated/controls) Treatment Vector Primary endpoints Outcome*
VEGF I CLI 9/- pCK-VEGF165 Plasmid Safety Positive
VEGF I CLI 21/- phVEGF165 Plasmid Safety Positive
VEGF I IC 15/3 adVEGF121 Adenovirus Safety Equivocal
VEGF II CLI 27/27 phVEGF165 Plasmid Amputation Negative
VEGF II IC 72/33 adVEGF121 Adenovirus Peak walking time Negative
VEGF II IC/CLI 18/17/19 adVEGF165/ phVEGF165 Adenovirus/plasmid Increased vascularity Positive
HGF I CLI 78/26 pVAX1-HGF Plasmid Safety/TcPO2 Positive
HGF I CLI 22/- pVAX1-HGF Plasmid Safety/ABI, ulcer size Positive
HGF I CLI 21/- pCK-HGF-X7 Plasmid Safety and tolerability Positive
HGF II CLI 21/6 VM202 Plasmid Safety/ABI, VAS, ulcer Positive
HGF III CLI 30/14 pVAX1-HGF Plasmid Rest pain, ulcer size Positive
FGF-1 I CLI 51/- NV1FGF Plasmid Safety Positive
FGF-1 II CLI 51/56 NV1FGF Plasmid Ulcer healing Negative
FGF-1 III CLI 259/266 NV1FGF Plasmid Amputation or death Negative
FGF-2 I CLI 12/- rSeV/df-hFGF-2 Sendai virus Safety and tolerability Positive
FGF-2 II IC 127/63 rFGF2 Plasmid Maximum walking time Positive
HIF-1 I CLI 34/7 Ad2/HIF-1α/VP16 Adenovirus Safety and efficacy Positive
HIF-1 II CLI 213/76 Ad2/HIF-1α/VP16 Adenovirus Maximum walking time Negative
DEL-1 II IC 52/53 VLTS-589 Plasmid Maximum walking time Negative