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Seventy-seven patients received intravenous progesterone, and 23 were given a placebo injection.
Participants were split into two groups - one was given the hormonal jabs, the other a placebo injection.
Researchers randomly assigned 31 patients with wounds to the forehead to receive either Botox or a placebo injection right after the wounds were closed.
Rats in two control groups — one of which received no shot, the other of which received a placebo injection that did nothing to prevent synapses from making new proteins — remained terrified.
The RV144 trial was very large – more than 16,400 Thai men and women without HIV took part, randomly assigned to receive either the combined vaccine or a placebo injection.
Researchers randomly assigned 241 women with urinary incontinence to daily medicine and a placebo injection, or a Botox injection and a daily placebo pill.
Similar(37)
Blinding with a placebo-injection in the control group was not possible because subcutaneous injections with mistletoe preparations result in local reactions at the injection site which deblind patients and the physician [ 26].
Hong et al. [ 60] employed a placebo version of a magnetic necklace while Wheeler et al. [ 61] employed a single placebo injection into the cervical paraspinal muscles.
injection, or i.m. triamcinolone acetonide (40 mg) and a s.c. placebo injection on day 1.
Our main reason for this omission was because a true placebo injection for Achilles tendinopathy does not exist: both saline injections and dry needling have both been advocated by NICE as having a possible treatment effect.
In this double blind and placebo controlled study the P group (N = 35) received a coded placebo injection of Intralipid™ mixed with sterile isotonic saline while the BM treatment group (N = 31) received a coded injection of 12 mg Celestone Soluspan™ IM (gluteal muscle) 30 60 minutes prior to surgery.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com