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Table 1 Experimental groups and dosing details

From: Intra-arterial administration of recombinant tissue-type plasminogen activator (rt-PA) causes more intracranial bleeding than does intravenous rt-PA in a transient rat middle cerebral artery occlusion model

Group

n

Dose

[Test Article]

Injection Volume

Infusion Duration

Saline

5

Dose Vol

---

1 μL/g BW

10 min

Vehicle

5

Dose Vol

---

1 μL/g BW

10 min

rt-PA, IA Infusion

5

1 mg/kg

1 mg/mL

1 μL/g BW

10 min

 

7

5 mg/kg

5 mg/mL

1 μL/g BW

10 min

 

5

10 mg/kg

5 mg/mL

2 μL/g BW

20 min

 

5

30 mg/kg

5 mg/mL

6 μL/g BW

60 min

rt-PA, IV Infusion

5

10 mg/kg

5 mg/mL

2 μL/g BW

20 min

 

5

30 mg/kg

5 mg/mL

6 μL/g BW

60 min

  1. The infusion rate of the test article depended on the body weight (BW) of the rat. The total volumes infused averaged 0.35 mL, 0.7 mL and 1.95 mL for infusion durations of 10, 20 and 60 minutes, respectively.