They received either a combination of two potential vaccines or
placebo shots.
But in a pilot study conducted on heavy smokers, 24 percent of those who received the NicVAX vaccine were smoke free for the last two months of the six - month study — double the quit rate of those who received
placebo shots.
In the study of 512 prostate cancer patients that led to Provenge's approval, one - third of the vaccinated patients remained alive after three years, compared with one - quarter of those who received
a placebo shot, for an average life extension of four months.
In his trial, Kosten found that 50 percent of cocaine users had cocaine - free urine when tested 8 to 16 weeks after vaccination, compared with 35 percent of those who received
a placebo shot.
Not exact matches
That
shot would be followed by a second one, which subjects were led to believe would either be a painkiller or a
placebo.
Then the drugged mice's endurance
shot through the roof: They ran about 70 % farther than trained mice given a
placebo, and their running times were similarly increased, Evans's group reports online today in Cell.
Regarding the G -
Shot, Whipple says: «It could be the
placebo effect.
Each participant received either a single
shot of an experimental vaccine or a
placebo and were then infected with a mild form of the virus six months later.
The
placebo group
shot up to 25.33 micromoles per milliliter after an hour, while levels in the maqui - berry extract group rose more slowly, to only 11.22 uU / ml — a remarkable 56 percent lower.