Yes, although research has still not isolated which specific properties of the aloe plant are responsible for it, but there are ongoing scientific lab tests which are trying to isolate these propreties, but until that happens it is still clasified as a homeopathic suplemental remedy and can't be clasified as a cure for cancer.There are hundreds of research studies all showing evidence of helping with skin cancer. For example:

Researchers from Hamberg studied 40 healthy adults and found that aloe vera prevented inflammation resulting from ultraviolet radiation exposure. They also tested several other herbs, but Aloe was the only herb that significantly prevented the inflammation.

A 2008 study from Germany’s Freiburg University found that a 97% Aloe gel reduced inflammation following sun exposure, significantly greater than a 1% hydrocortisone cream. Inflamation from sun exposure being one of the major causes of skin cancer.

And in 90% of cases where skin cancer is present, aloe has been shown to cause regression of skin cancer when applied topically.

For other cancers types studies have also shown aloe to help with cancer. For example:

Researchers from Italy’s St. Gerardo Hospital treated 240 patients with solid metastatic tumors of different types with chemotherapy combined with or without Aloe treatment. Ten milliliters of liquid Aloe was given daily three times a day.

The researchers found that those treated with Aloe had a significantly longer survival rate and had significantly more regression of tumors.

You could google thousands of clinical and scientific studies, since these have been done for decades now.