Submucosal lifting compositions and methods of same

1. A submucosal lifting composition comprising:

a polysaccharide present in an amount ranging from about 0.05 wt % to about 0.5 wt %, based on the total weight of the composition;

a polyol present in an amount ranging from about 10 wt % to about 20 wt %, based on the total weight of the composition; and

a colorant present in an amount ranging from about 0.0001 wt % to 0.005 wt %, based on the total weight of the composition, wherein the submucosal lifting composition does not include a glycosaminoglycan,

wherein, when the submucosal lifting composition is injected into a submucosal tissue, the submucosa is lifted to a height of at least 3 mm for 60 minutes, relative to the pre-lift height of the submucosa prior to injection.

2. The composition of claim 1 , wherein the polysaccharide is selected from the group consisting of methylcellulose (MC), hydroxypropylcellulose (HPC), hydroxypropylmethylcellulose (HPMC), hydroxycellulose, hydroxyethylcellulose (HEC), carboxymethylcellulose (CMC), desulfated dermatan sulfate, guar gum, fenugreek gum, tara gum, locust bean gum, carob gum, amylopectin, gum Arabic, arabinoxylan, any salt thereof, and any combination thereof.

3. The composition of claim 1 , wherein the polysaccharide comprises hydroxyethylcellulose.

4. The composition of claim 1 , wherein the polysaccharide has a viscosity ranging from about 500 cP to about 10,000 cP.

5. The composition of claim 1 , wherein the polyol is selected from the group consisting of glycerin, diglycerin, propylene glycol, dipropylene glycol, butanediol, pentanediol, butylene glycol, ethylene glycol, diethylene glycol, triethylene glycol, and any combination thereof.

6. The composition of claim 1 , wherein the polyol comprises glycerin.

7. The composition of claim 1 , wherein the colorant is selected from the group consisting of methylene blue, isosulfan blue, indocyanin green, fluorescein, rose bengal, gentian violet, and any combination thereof.

8. The composition of claim 1 , wherein the colorant comprises methylene blue.

9. The composition of claim 1 , further comprising one or more of water, preservative, and buffer.

10. The composition of claim 1 , wherein the composition is sterile.

11. The composition of claim 10 , wherein each of the components of the composition is sterilized.

12. The composition of claim 10 , wherein the composition is terminally sterilized.

13. The composition of claim 1 , wherein the composition is an aqueous solution.

14. The composition of claim 1 , wherein the composition is not an emulsion.

15. The composition of claim 1 , wherein the composition has a viscosity ranging from about 5.0 cP to about 150 cP.

16. The composition of claim 1 , wherein the composition has a pH ranging from about 5.5 to about 8.0.

17. The composition of claim 1 , wherein the polysaccharide comprises hydroxyethylcellulose, the polyol comprises glycerin, and the colorant comprises methylene blue.

18. A sealed and sterile syringe comprising the composition of claim 1 .

19. A method of lifting a submucosa, comprising:

injecting the composition of claim 1 into a submucosa of a subject, thereby providing a lifted submucosa having a first lift height.

20. The method of claim 19 , wherein the first lift height is at least about 2.0 mm, and is measured relative to the height of the submucosa prior to injecting the composition.

21. The method of claim 19 , wherein the first lift height is in a range of about 2.0 mm to about 11.0 mm, and is measured relative to the height of the submucosa prior to injecting the composition.

22. The method of claim 19 , wherein the lifted submucosa retains at least 50% of the first lift height after 30 minutes.

23. The method of claim 19 , comprising injecting the composition at a flow rate of at least 0.05 mL/s.

24. The method of claim 19 , wherein the submucosa comprises a submucosal tissue of the gastrointestinal tract.

25. The method of claim 24 , wherein the submucosal tissue comprises a lesion.

26. The method of claim 25 , wherein the lesion is selected from the group consisting of a polyp, an adenoma, an early-stage cancer, and any combination thereof.

27. A method of gastrointestinal submucosal resectioning, the method comprising:

injecting the composition of claim 1 to a gastrointestinal submucosal tissue of a subject to lift the tissue to a first lift height, thereby providing a lifted gastrointestinal submucosal tissue; and,

surgically resecting the lifted gastrointestinal submucosal tissue.

28. The method of claim 27 , wherein the composition is injected in an amount sufficient to lift the tissue to the first lift height.

29. The method of claim 27 , wherein the first lift height is at least about 2.0 mm, and is measured relative to the height of the gastrointestinal submucosal tissue prior to injecting the composition.

30. The method of claim 1 , wherein the lifted gastrointestinal submucosal tissue retains at least 50% of the first lift height after 30 minutes.

31. A submucosal lifting composition consisting of:

a polysaccharide present in an amount ranging from about 0.05 wt % to about 0.5 wt %, based on the total weight of the composition, wherein the polysaccharide is selected from the group of methylcellulose (MC), hydroxypropylcellulose (HPC), hydroxypropylmethylcellulose (HPMC), hydroxycellulose, hydroxyethylcellulose (HEC), carboxymethylcellulose (CMC), desulfated heparin, desulfated chondroitin sulfate, desulfated dermatan sulfate, guar gum, fenugreek gum, tara gum, locust bean gum, carob gum, amylopectin, gum Arabic, arabinoxylan, a salt of any of the foregoing, and any combination of the foregoing;

a polyol present in an amount ranging from about 10 wt % to about 20 wt %, based on the total weight of the composition;

a colorant present in an amount ranging from about 0.0001 wt % to 0.005 wt %, based on the total weight of the composition;

a preservative;

a buffer; and

water;

wherein, when the submucosal lifting composition is injected into a submucosal tissue, the submucosa is lifted, relative to the submucosa prior to injection.