QUARTZ: Comparative Effectiveness of Switching From Albuterol to Albuterol/Budesonide Versus Adding Low-dose ICS or LTRA to Albuterol (QUARTZ)
QUARTZ: Comparative Effectiveness of Switching From Albuterol to Albuterol/Budesonide Versus Adding Low-Dose Inhaled Corticosteroids or Leukotriene Receptor Antagonists to Albuterol Among Adults With Asthma in the United States
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: AstraZeneca Clinical Study Information Center
- Telefonnummer: 1-877-240-9479
- E-mail: information.center@astrazeneca.com
Studiesteder
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Delaware
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Wilmington, Delaware, Forenede Stater, 19803
- Rekruttering
- Research Site
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Asthma patients with at least one prescription record (identified by NDC or Healthcare Common Procedure Coding System [HCPCS] codes) for Airsupra (Airsupra cohort), LD ICS or LTRA, (comparator cohort) since January 2023.
- Patients with at least one prescription record (based on NDC or HCPCS codes) of albuterol within the 12 months prior to the first Airsupra or the controller medications prescription date
- Patients aged ≥18 years on the index date
- Patients with ≥12 months of continuous insurance enrolment prior and 12 months after index date.
Exclusion Criteria:
- Patients with at least one medical claim with an ICD-10 code within the 12 months prior to the index date for any of the chronic respiratory conditions or systemic inflammatory diseases routinely treated with systemic corticosteroids (SCS)
- Patients with any prescription record for any ICS or other controller therapies (including SAMA, LABA, LAMA, LTRA, theophylline or biologics) within the 12 months prior to the and inclusive of index date (the index therapy defining cohort entry (LD ICS for the LD ICS cohort; LTRA for the LTRA cohort is permitted on the index date)
- Patients with maintenance OCS use within the 12 months prior to and inclusive of the index date
- Airsupra patients with a concomitant SABA prescription record on the index date
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Airsupra cohort
Patients who switch from albuterol to Airsupra (albuterol/budesonide) as their rescue therapy.
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Not applicable since it's an observational study.
There are three study cohorts: 1) Airsupra cohort 2)Albuterol and low-dose ICS comparator cohort and 3) Albuterol and LTRA comparator cohort.
Andre navne:
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Albuterol and low-dose ICS comparator cohort
Patients who add low-dose inhaled corticosteroid (ICS) to their ongoing albuterol rescue regimen.
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Not applicable since it's an observational study.
There are three study cohorts: 1) Airsupra cohort 2)Albuterol and low-dose ICS comparator cohort and 3) Albuterol and LTRA comparator cohort.
Andre navne:
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Albuterol and LTRA comparator cohort
Patients who add leukotriene modifiers (LTRA) to their ongoing albuterol rescue regimen.
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Not applicable since it's an observational study.
There are three study cohorts: 1) Airsupra cohort 2)Albuterol and low-dose ICS comparator cohort and 3) Albuterol and LTRA comparator cohort.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Severe exacerbations during follow-up: annualized asthma exacerbation rates (AAER) by cohort, overall and by setting (IP, ED/urgent care, outpatient); plus absolute rates and rate ratios comparing Airsupra with each comparator cohort
Tidsramme: Follow-up starts the day after index and ends at the earliest of death, data end, insurance disenrollment, loss to follow-up, or switch to the alternative rescue treatment, up to 36 months; add-on maintenance therapy does not censor follow-up.
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To describe and compare the occurrence of severe exacerbations observed among the Airsupra cohort and each comparator cohort.
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Follow-up starts the day after index and ends at the earliest of death, data end, insurance disenrollment, loss to follow-up, or switch to the alternative rescue treatment, up to 36 months; add-on maintenance therapy does not censor follow-up.
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Time to first severe exacerbation: KM curves, median time by arm (if estimable), and Cox PH HRs comparing Airsupra with each comparator. Also, the proportion with at least 1 severe exacerbation at 3, 6, 9, and 12 months after treatment initiation.
Tidsramme: Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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To describe and compare the time to first severe exacerbation among the Airsupra cohort and each comparator cohort.
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Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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Cumulative inhaled corticosteroid exposure (beclomethasone equivalent µg/year)
Tidsramme: Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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To describe exposure to corticosteroid treatments among the Airsupra cohort and each comparator cohort
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Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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Cumulative systemic corticosteroid exposure (prednisone equivalent mg/year)
Tidsramme: Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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To describe exposure to corticosteroid treatments among the Airsupra cohort and each comparator cohort
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Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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Total SCS exposure days
Tidsramme: Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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To describe exposure to corticosteroid treatments among the Airsupra cohort and each comparator cohort
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Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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SCS burst rates
Tidsramme: Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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To describe exposure to corticosteroid treatments among the Airsupra cohort and each comparator cohort
|
Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months
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Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Follow-up HCRU rates by arm: all-cause, asthma-related, and exacerbation-related use, including IP admissions, ED/urgent care, primary care, specialist outpatient visits, plus chest X-rays, oxygen treatment, and spirometry.
Tidsramme: Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months.
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To describe healthcare resource use (HCRU) among the Airsupra cohort and each comparator cohort.
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Follow-up period for each patient starts the day after the index date and ends at the earliest date of death, end of data, end of insurance enrollment, loss to follow up, or switch to the alternative rescue treatment up to 36 months.
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
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
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- D6930R00011
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