The company hopes to raise $20.5 million to continue the rollout of Cxbladder in the US with two other similar products, Cxbladder triage and Cxbladder predict, and further research on alternative cancer tests.
At first the company was looking at tests for five different cancers - bladder, gastric, colorectal, melanoma and endometrial.
"The long and short of it is that the bladder cancer test showed the most promising initial signs so we went with it," Darling said.
"The refinery process included an 18-month, $1.6 million clinical trial, before it was approved for use earlier this year."
Cxbladder is now in wide use throughout New Zealand and Australia and has been marketed as one-third the price of other testing methods, more accurate and less invasive.
The US deals helped to push Pacific Edge's shares up to a closing price of $1.58 on Thursday compared to 72c on Monday, a rise which Darling partly attributes to overseas investment following exposure in the Wall Street Journal.
The company's shares have since fallen back closing down 9c yesterday to $1.49.
"We've received reports of significant investment from the US and Asia, it's pretty great when you get that level of exposure, especially from the likes of the Wall Street Journal."
According to Darling, the next move for the company will be expanding into Asia and Europe.
The move is already underway with approval to sell in Spain, which has the highest rate of bladder cancer in the world.