Treatment of Hypertension In Adults With ThiaZIDES: Pragmatic Trial Pilot Study (ThiaZIDES)
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
Minnesota
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Bloomington, Minnesota, Forenede Stater, 55105
- HealthPartners Institute for Education and Research
-
-
Oregon
-
Portland, Oregon, Forenede Stater, 97227
- Kaiser Permanente Center for Health Research
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Adults 18 years and older
- Hypertension diagnosis (ICD-9 401.x)
- Current prescription for hydrochlorothiazide (HCTZ), 12.5-50 mg/day as a single-agent (not part of a fixed-dose combination drug)
- No history of intolerance to chlorthalidone (CTD)
- No known low levels of sodium (<135 mEg/L (milliequivalents per liter)) or potassium (<3.5 mEg/L)
- English speaking
Exclusion Criteria:
- Physician deems patient inappropriate for switching HCTZ to CTD
- Patient refuses the switch prior to intervention
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Aktiv komparator: Intervention
Intervention is HCTZ prescription conversion to chlorthalidone.
Intervention patients are defined as patients of physicians randomized to "intervention."
All these patients will have their current prescription of hydrochlorothiazide (HCTZ) switched to an equipotent dose of Chlorthalidone.
These patients can choose to decline this intervention, and will be followed for 9 months with no other intervention to observe primary and secondary outcomes.
|
The intervention is simply a prescription conversion and the main outcome is whether or not patients accept the conversion and treatment with chlorthalidone.
|
|
Ingen indgriben: Usual Care
Usual care patients are defined as patients of physicians randomized to "usual care."
All these patients will keep their current prescription for HCTZ and work with their physician like normal.
These patients will be followed for 9 months with no intervention to compare primary and secondary outcomes to the intervention group.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Conversion to chlorthalidone, number of patients with primary fills
Tidsramme: 3 months
|
We will observe pharmacy claims to assess whether intervention patients filled their first prescription for chlorthalidone (primary adherence)
|
3 months
|
|
Conversion to chlorthalidone, number of participants with secondary fills
Tidsramme: 9 months
|
We will observe pharmacy claims to assess whether intervention patients who filled their first chlorthalidone prescription also filled their subsequent prescription (secondary adherence)
|
9 months
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Blood pressure
Tidsramme: 9 months
|
Systolic and diastolic blood pressure measures, as documented in electronic health record
|
9 months
|
|
Hypertension drugs
Tidsramme: 9 months
|
Use of anti-hypertensive drugs in addition to hydrochlorothiazide or chlorthalidone, as documented in pharmaceutical claims
|
9 months
|
|
Electrolyte levels
Tidsramme: 9 months
|
Sodium and potassium levels, as documented in electronic health record
|
9 months
|
|
Renal function
Tidsramme: 9 months
|
Kidney function lab values (including epidermal growth factor receptor (eGFR) and creatinine), as documented in electronic health record
|
9 months
|
|
Safety outcomes
Tidsramme: 9 months
|
Hypotension with fainting (over-treatment), hypertensive crisis (under-treatment) and other clinical outcomes related to safety of hypertension treatment
|
9 months
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Karen L Margolis, MD, MPH, HealthPartners Institute
- Ledende efterforsker: Stephen P Fortmann, MD, Kaiser Permanente
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- R34HL119790 (U.S. NIH-bevilling/kontrakt)
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