Alex,
I don’t know of any ongoing “clinical” studies for the purpose of determining efficaciousness of dietary supplements in the realm of sexual performance enhancement. Nine out of ten times, no company with enough money to institute an actual clinical trial will ever do so for dietary supplements. The why of this was summed up by ThunderSS very effectively. Greed.
If I am a corporation and I want to institute a good clinical trial (double blind, placebo controlled, etc.) of a dietary supplement and release the results to the general public, then not only am I paying for it for my own benefit, and believe me, the cost for a clinical trial can be amazingly high, I’m footing the bill so that every Johnny-come-lately can benefit from my results as well.
It happens all the time, some company actually institutes a clinical trial and releases the results to the GP. Within a week, you’ll see every supplement knockoff out there quoting the trial results and doing everything in their power, aside from actually claiming it, to make you think that their product is the one that was used in the trial.
So what do you do if you want to have the banner of an effectiveness trial under your belt but don’t want to spend on average 15 thousand dollars and let everyone and their third cousin see the results? You just do a “generic” trial. Have 10 friends come over. Give them samples of your supplement. Check back a couple weeks later and get the results then say, “Look! We did a trial on this and OMG it worked for 9 out of 10 participants!!!!” Just don’t tell anyone that only 10 people participated…
Another reason not to do clinical trials, what if you just spent 8 years researching a product and putting together the formulation only to find out in an actual clinical trial that it doesn’t do a damn thing? You’ve just squandered an insane amount of money for nothing. So why run the risk of proving your product is junk by actually doing a clinical trial?
Anyway, the short of that long-winded answer, I don’t know of any going on at present and somehow I doubt you’ll see any of actual clinical level in the near future.
However, I’m with you. I’d love to read some actual clinical trial papers on a good many supplements.
Best to you,
Darklin Sithas