An interventional study of Placebo with BP dec (written form) and Placebo with BP dec (doctor) in Blood Pressure, sponsored by Charite University, Berlin, Germany. Status unknown at 1 site in Germany. Open to participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2007-12-10.
Sponsored by Charite University, Berlin, Germany · Not applicable, Interventional, and Basic science
A relevant reduction of blood pressure (BP) in placebo-treated control groups is a phenomenon often observed in pharmacological studies of hypertension. This effect was shown to differ from spontaneous remission tendencies and regression to the mean effect by comparing placebo groups with untreated controls. However, it is not fully understood whether these effects are due to a global reaction of the autonomous nervous system (affecting the overall organ systems of the body) or a specific reaction (affecting the cardiovascular system only). We therefore aim to differentiate specific effects (reduction of blood pressure) from global effects (e.g. changes in electrodermal and gastric activity).
In our study we aim to test the following hypotheses:
Charite University, Berlin, Germany is the lead sponsor of 854 studies on the registry; 127 are open to participants now.
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Exclusion Criteria:
Other: Placebo with BP dec (written form)
Other: Placebo with BP dec (doctor)
Other: Placebo with BP inc (written)
Other: Placebo with BP inc (doctor)
Other: Placebo info given (written)
Other: Placebo info given (doc)
Placebo administration with a blood pressure decrease suggestion. Information provided to subjects in written form.
Placebo administration with a blood pressure decrease suggestion. Information provided to subjects by doctor.
Placebo administration with a blood pressure increase suggestion. Information provided to subjects in written form.
Placebo administration with a blood pressure increase suggestion. Information provided to subjects by doctor.
Subject informed about receiving placebo. Information provided to subjects in written form.
Subject informed about receiving placebo. Information provided to subjects by doctor.
Mean arterial pressure
Time frame: 60 minutes
Heart rate
Time frame: 60 minutes
skin conductance level
Time frame: 60 minutes
gastric activity
Time frame: 60 minutes
The record gives a start of Apr 2007 and a completion of Feb 2008. It does not say whether these dates are actual or estimated.
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This study is status unknown, as verified in Nov 2007. You cannot join it, but the record below documents what was studied.
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Charite University, Berlin, Germany →