- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT00837902
Genetic Determinants of Response to Beta Blockade
Studieoversigt
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Tennessee
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Nashville, Tennessee, Forenede Stater, 37203
- Vanderbilt University
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Subject must be willing to give written informed consent and be able to adhere to diet and study schedules.
- Subjects must be free of any clinically significant disease that requires a physician's care and/or would interfere with the study evaluations.
- Subjects must have a clinically acceptable physical examination and ECG.
- Laboratory tests (CBC, blood chemistries, and urinalysis) must be within clinically acceptable limits.
Exclusion Criteria:
- Any subject who has taken any prescription or over-the-counter drugs, other than oral contraception if female, within one week prior to study drug administration.
- Subjects who are presently, or were formerly, narcotic addicts or alcoholics.
- Active smokers.
- Subjects who have a clinically significant allergy/intolerance to atenolol.
- Females with a positive serum/urine pregnancy test at screening.
- Females who are nursing.
- Subjects with complete heart block/ any other significant cardiovascular disease.
- Subjects with a history of asthma symptoms or medication for it within last 10 years.
- Subjects who have a systolic blood pressure < 90 mm Hg or diastolic blood pressure < 50 mm Hg or heart rate < 50/min at the screening visit or on the baseline pre drug values on the study day.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Eksperimentel: Atenolol
There is only 1 arm to this study. Intervention: All participants received atenolol. Genotyping for GRK5 was performed to identify if participants were GLN/GLN, GLN/LEU, or LEU/LEU. Heart rates were measured at rest, and as participants performed graded incremental exercise on a supine bicycle ergometer (at 25, 50, and 75 W for 2 minutes each) twice, once before and once 2.5 hours after taking 25 mg of atenolol. |
25 mg tablet
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Reduction in Heart Rate
Tidsramme: 2 exercise periods of 6 minutes each. 6 minutes of exercise before taking atenolol, and 6 minutes of exercise starting 2.5 hours after taking 25 mg of atenolol (2.5 hours + 6 minutes)
|
Reduction in heart rate based upon genotype while exercising.
Participants exercised on a recumbent bike for 2 minutes at 25W, 2 minutes at 50W, and 2 minutes at 75W twice, once before taking atenolol, and once 2.5 hours after oral administration of 25 mg of atenolol.
Data points represent unadjusted mean reduction in heart rate in the 3 genotype groups.
|
2 exercise periods of 6 minutes each. 6 minutes of exercise before taking atenolol, and 6 minutes of exercise starting 2.5 hours after taking 25 mg of atenolol (2.5 hours + 6 minutes)
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Charles M Stein, MD, Vanderbilt University
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Lægemidlers fysiologiske virkninger
- Adrenerge beta-antagonister
- Adrenerge antagonister
- Adrenerge midler
- Neurotransmittermidler
- Molekylære mekanismer for farmakologisk virkning
- Anti-arytmimidler
- Antihypertensive midler
- Autonome agenter
- Agenter fra det perifere nervesystem
- Sympatolytika
- Adrenerge beta-1-receptorantagonister
- Atenolol
Andre undersøgelses-id-numre
- 081267
- P01HL056693 (U.S. NIH-bevilling/kontrakt)
- 1UL1RR024975 (U.S. NIH-bevilling/kontrakt)
- U01HL065962 (U.S. NIH-bevilling/kontrakt)
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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