New placebo-controlled, buried Valkee trial identified (X-mas special 3)

Dozens of hilarious details about Valkee Ltd’s HumanCharger scam go untold because they don’t warrant a full blog post. As a Christmas present, here are some of such pearls.

My deepest apologies. We misrepresented a clinical study in our YLE MOT TV program, and so did all those people after us, who reviewed Valkee’s stuff systematically. We were mislead by the company, but that’s no excuse.

The critical point with Valkee’s earlight is the obvious lack of placebo-controlled studies for the claims in Seasonal Affective Disorder. Valkee Ltd told it’s easy, and they will come up with great results. They never did.

We do know, however, that they attempted such a study 3 times: One was halted, one is completely buried, and the third showed the device to be non-inferior to placebo by a small margin. This result was falsified then, because it would have obviously stopped the whole scam at once.

Juuso Nissilä of Valkee gave an interview back in 2012.

placebo controlled data surfaced

Unlike other bright light therapies, the Valkee unit has been tested in a placebo-controlled trial. ‘You can’t tell, when it’s in your ears, […], it’s possible to have a placebo,’ Nissilä explained.

The trial, with 26 patients receiving treatment and a control group of 23, showed that depression – […] – decreased when the device was used for 12 minutes per day.

That is, to my knowledge, the halted one with 60 persons to participate. It actually had results which never officially surfaced. Valkee’s then-board member Timo Takala, at the same time “researching” his product, told the reporter it was because of low enrollment. That’s what I remember, this part was not broadcasted.

It fits: They had at least 26+23=49 patients of planned 60 when the data was unblinded to the investigators. That’s to say, the trial was dumped then. When the investigators know such interim results, it cannot be continued anymore.

Valkee initiated the notorious 3-group trial in November 2010 with 90 participants, later to be faked. But the “halted” trial was projected to run through that very same winter. Registered completion was March 2011. That means it was not halted for low enrollment. They could have continued. But they recruited patients for the other and declared the first to be failed. Entry criteria and study design were the same.

I won’t comment any longer, it would be too speculative. The real reasons for disrupting the placebo-controlled trial are unknown. Nissilä’s comment reads to me like “symptoms decreased in both groups”, i.e. placebo performed as well as earlight. The similar result as in all other placebo-controlled tests.

Once again, crucial placebo-controlled results remain buried by Valkee Ltd. WHY?
(Ok, that’s pathetic to ask.)

The Christmas Special continues tomorrow. Stay tuned!

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