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Clinical Characteristics of Parkinson's Disease Subjects With Severe Hypertension During Motor OFFs. (CLIN-HTN-PD)

15. november 2021 opdateret af: Kathryn Anne Chung, Oregon Health and Science University
Current management of hypertension in PD motor fluctuators is flawed. The current practice often is to treat transient hypertensive spikes reported by patients or measured in clinics with anti-hypertensive medications. This may contribute to morbidity by worsening orthostatic hypotension and increasing fall risk. There is a scarcity of literature on this subject and there is no documentation of severe hypertension with rises in systolic blood pressure exceeding 50% of baseline occurring during motor "OFF". There are two studies that have demonstrated that blood pressure fluctuation can occur in motor fluctuators during the "OFF" state1,2. The study by Baratti et al measured blood pressure in 13 Parkinson's disease patients, 7 with motor fluctuations and 6 without fluctuations. In the fluctuators, the mean systolic/diastolic blood pressures were significantly higher than the non-fluctuators during the "OFF" state but not the "ON" state.

Studieoversigt

Status

Suspenderet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is an observational study. This study will only recruit Parkinson's subjects with rises in systolic blood pressure exceeding 50% of baseline during motor off periods to select for subjects with severe blood pressure fluctuations. The clinical characteristics, including but not limited to, the degree of change of the motor tapping score, during an "off" period of this group of subjects with severe hypertension. There is a screening visit, a at home monitoring period, and a one-time 4-8 hour study visit for subjects that satisfy the inclusion criteria. The screening visit will assess Parkinson's motor state and review the inclusion/exclusion criteria. The at home monitoring period will measure blood pressure twice a levodopa cycle for 5 cycles (for most subjects, this will be for two days and is dependent on the subject's clinical levodopa cycle). Measurements will occur pre-levodopa dose (the maximal "OFF" time), and half-way through the cycle (maximal "ON" time). The percentage of change will be calculated and those that have a systolic change of greater than or equal to 50% will proceed to the outpatient visit. The outpatient visit will measure blood pressure, pulse, Parkinson's motor symptoms, and plasma levodopa levels.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

10

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Oregon
      • Portland, Oregon, Forenede Stater, 97239
        • VA Portland Health Care System

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 99 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Parkinson's disease participants with motor fluctuations.

Beskrivelse

Inclusion Criteria:

  • Idiopathic Parkinson's disease fulfilling UK Brain Bank clinical criteria.
  • Treatment with chronic levodopa (levodopa treatment for ≥ 3 years).
  • Rise in "OFF" systolic blood pressure exceeding 50% of baseline "ON" systolic blood pressure as shown by at home monitoring.
  • History of "wearing off" prior to 4 hours after the previous levodopa dose per patient report or chart documentation.

Exclusion Criteria:

  • Daily beta-blocker therapy.
  • Diabetes mellitus, autonomic neuropathy, or other condition known to alter autonomic functions.
  • Significant cognitive impairment as measured by the Montreal Cognitive Assessment score of < 16

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Fluctuator
Parkinson's subjects with rises in systolic blood pressure exceeding 50% of baseline during motor off periods to select for subjects with severe blood pressure fluctuations.
Andet: No Intervention
Observational

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Systolic Blood Pressure Change
Tidsramme: Change in systolic blood pressure from 08:30 am measurement to 11:00 am measurement.
Blood pressure measurement taken at lowest "OFF" rating on the Unified Parkinson's Disease Rating Scale (UPDRS) and highest "ON" rating on the UPDRS.
Change in systolic blood pressure from 08:30 am measurement to 11:00 am measurement.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Diastolic Blood Pressure Change
Tidsramme: Change in systolic blood pressure from 08:30 am measurement to 11:00 am measurement.
Blood pressure measurement taken at lowest "OFF" rating on the Unified Parkinson's Disease Rating Scale (UPDRS) and highest "ON" rating on the UPDRS.
Change in systolic blood pressure from 08:30 am measurement to 11:00 am measurement.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Oregon Health and Science University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

6. februar 2018

Primær færdiggørelse (Forventet)

31. december 2022

Studieafslutning (Forventet)

31. december 2022

Datoer for studieregistrering

Først indsendt

8. januar 2018

Først indsendt, der opfyldte QC-kriterier

8. februar 2018

Først opslået (Faktiske)

15. februar 2018

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

16. november 2021

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

15. november 2021

Sidst verificeret

1. november 2021

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 17490
  • VA IRB 4143 (Anden identifikator: VA Portland Health System)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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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