Hit it with some fertilizer and keep it watered. What kind of soil is it in? If there aren't many nutrients in the soil, that could explain the spindly and withering bines. That could also be transplant shock as well.
I pulled up a cascade earlier to find some root rot forming, cut that out, and replanted with fresh garden soil, mushroom compost and manure. I hit it with some blood meal once a week, and some vigoro every other week. I water every day it doesn't rain, just enough to dampen the soil. She went from withered and dying and no growth to about 6' long, with another healthy few inches on her today.
I wouldn't plan on a great harvest, but plan for root establishment for next year. Good luck!