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 |