Study record · Delta sleep-inducing peptide
Double-blind DSIP study in chronic insomnia
Some objective signals occurred, but effects were weak/inconsistent and investigators considered major therapeutic benefit unlikely.
Key result
Some objective signals occurred, but effects were weak/inconsistent and investigators considered major therapeutic benefit unlikely.
Study details
Study designDouble-blind controlled clinical study
PopulationPeople with chronic insomnia
Sample size16
RouteIntravenous
Regimen / exposure25 nmol/kg before nights 3-5
DurationSeveral nights
ComparatorPlacebo/control
Primary endpoint / questionSleep architecture and subjective sleep
Safety resultNo robust modern safety dataset established.
Key limitationsVery small, old trial; outdated methods and limited replication.
Registry / identifierPMID 1299794