neuPaclitaxel program
Pre-clinical Data
Safety
Animal studies were performed to determine the Maximum Tolerated Dose (MTD) of neuPaclitaxel. The MTD for neuPaclitaxel administered to nude mice is 44 mg/kg. This study confirms that the neuNanoParticle® formulation provides improved safety and tolerability relative to cremaphor-ethanol formulation.
Efficacy
The efficacy of neuPaclitaxel has been evaluated using the human breast cancer and cremaphor-ethanol formulation resistant human colon cancer xenograft mouse models. The results from these dosing regimens demonstrate significant advantages in primary end point and survivability versus cremaphor-ethanol formulation.
Human Breast Cancer (MX-1) xenograft mouse model
Dosing schedule: Q2Dx4 (IV), 22 mg/kg
*At the end of the study (Day 121).
Paclitaxel resistant-Human Colon Cancer (HCT-15) xenograft mouse model
Dosing schedule: Q2Dx4 (IV) at MTD
**At the end of the study (Day 33).

Safety
Animal studies were performed to determine the Maximum Tolerated Dose (MTD) of neuPaclitaxel. The MTD for neuPaclitaxel administered to nude mice is 44 mg/kg. This study confirms that the neuNanoParticle® formulation provides improved safety and tolerability relative to cremaphor-ethanol formulation.
Efficacy
The efficacy of neuPaclitaxel has been evaluated using the human breast cancer and cremaphor-ethanol formulation resistant human colon cancer xenograft mouse models. The results from these dosing regimens demonstrate significant advantages in primary end point and survivability versus cremaphor-ethanol formulation.
Human Breast Cancer (MX-1) xenograft mouse model
Dosing schedule: Q2Dx4 (IV), 22 mg/kg
| Observation | Cremaphor-Ethanol Formulation 22 mg/kg (MTD) |
neuPaclitaxel 22 mg/kg (1/2 MTD) |
| Complete tumor regression | 10/10 | 10/10 |
| Tumor-free survivors* | 6/10 | 10/10 |
| Tumor recurrence | 4/10 | 0/10 |
| Days of tumor recurrence | 23 | >120 |
| TGD (%) | 60 | 100 |
Paclitaxel resistant-Human Colon Cancer (HCT-15) xenograft mouse model
Dosing schedule: Q2Dx4 (IV) at MTD
| Observation |
Cremaphor-Ethanol Formulation |
neuPaclitaxel |
| Survivors** |
0/10 |
10/10 |
| Tumor recurrence |
N/A |
21 |
| TGD (%) |
– |
62 |


