@MeDK what percentage growth is expected, do you know that? Will it grow every time, so per treatment? If so and if it stops the hair loss, it would be a cure in the end. (After a few years)?
Thank you
we don't know. They have only done a single injection study. And is planning/working on a multi injection study.
But what we do know is something happens after 9 month, then its loses potency (density goes down), they phase 2 study counts in total hairs pr 15 mm2, so for men its about 2-3 more than placebo, and women its about 5 hairs more than placebo, where it peaks for both sexes at 9 months.
Also it was shown that the older you are, the better the treatment works, and lower norwood (3 -4), but higher norwood (5, 6) shows to have a later reaction but still increases after 9 months, where lower norwoods decreases after 9 months.
But all of this you have to think is a single injection, and the new study is about multiple injections, and probably better knowledge about how to improve the treatment even more. But we also know from the existing phase 2 study that they will use less number of cells for injections.
A very simple comparison, form the highest to lowest dose used, 7,5*10^6 / 3*10^5 = 25, so with some simple math, if they extract for one high dose there should be for 25 small doses, which might cover the entire scalp multiple times for the multiple injections over time. Which is my own speculation of course.
We know from the original phase 1 study, the best responders had an +19% increase in density, and worst case was a lost at 6% density at the 6 months mark.
So they might develop a better formulation for the cells and growth medium meanwhile, we can't really know.
But we do know that they keep on developing the methods for the treatment and can only wait for the next phase 2 study release where they talked about releasing pictures for before/after and show how good or bad the treatment is on a full head.
And the last study was a 12 month check up on the patients, and i think this study might be as well, so IF they have started well off, then we might now in 2-3 years what the result will be. I don't think we will know anything sooner than that, when talking about the new phase 2 study they will do.
Unless Replicel or Shiseido them self does an update while the study is going on.
But if we go deeper into the speculation, we do know that the medium for the cells to be cultivated in, isn't the same from the first study, since that company isn't available for market anymore, and that might be why we don't get the same results from phase 1 to phase 2, because that medium isn't the same, and somehow it have an effect.
And we know they have tried another medium after the one they couldn't use anymore, and that wasn't as effective as the original one, so they have to develop a whole new medium from scratch that shiseido then could use. So maybe that have been improved also, we don't know right now.