Nope, there isn't. And that's not why I feed it, lol.
I'm personally willing to take the leap that in general, fresh, whole foods are going to be superior to processed dog pellets. I feel no need to eat premade, "perfectly" formulated foods myself to maintain health and don't see why it would any different for a dog, who like humans, are typically quite flexible in their dietary needs. I don't think that's a stretch at all but I guess after years of pouring kibble into a bowl some people might. Dogs have been eating kibble for a far, far shorter time than they have been eating various fresh foods in the grand scheme of things. And I figure I'm putting a lot more effort to my dog's diet than people 100 years ago who just tossed scraps into the bowl, and they're likely to be just fine.
That being said, I'm hardly anti-kibble and certainly not a part of the "death nuggets" camp. And I realize that most pet owners are going to feed kibble, and for good reason.
I wish I could agree that dogs do fine on all sorts of kibbles but my sincere experience has been that dogs generally reflect what they eat in coat and condition. I often see smelly, flakey, funky dogs in daycare, and then when they come to board, I am not surprised by what they are eating. The reverse is also true. I am pretty open-minded and not closed off to the idea that dogs can do well even on lower quality food, but this has been my honest experience. I don't see a huge difference between dogs eating, say, grain free or grain inclusive food, necessarily, but I do tend to see dogs on junky foods (foods that are mostly carbohydrates and may contain food coloring) and foods that have a good amount of meat and a reasonable amount of carbohydrates. Out of all the dogs I see at work, there's only one I know of who eats junk (like, "Whatever's on sale at the grocery store" junk) and looks great. The rest... yeah, they mostly reflect what they eat. Is it the only factor? Certainly not. But I have seen it play a big role, especially in skin, coat, and weight in a fairly large sampling of dogs. Correlation and not causation is possible, of course.
That said, I don't see a huge difference between dogs on good quality food and dogs on a raw diet except in dental health, breath, and stool quality. Ollie eats mostly kibble but gets a little premade raw with breakfast and canned food at night. He's shiny as a new penny and doesn't smell doggy at all. He's lean and muscular but I attribute that more to his exercise routine and being intact. His teeth are fine but they do already have a little bit of build up on them, which even Macky barely has at 8.5 years old. And his breath smells like cat food. LOL
But, I can do a great raw diet and see all the benefits of dental health and firm, small, easy to pick up poops for cheaper than good kibble. So why would I do anything else?
Plus, ugh god, when my dogs eat kibble they poop like 8 times a day and it's like horse poop. I honestly don't know how people do that long term. LOL.
Anyway, I don't see there being any studies regarding raw happening anytime soon. Who would fund them? If they're funded by kibble companies they're immediately suspect anyway, and I don't know who else would have the money and the backing to do it.