Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Predictive Value of Inflammatory Biomarkers for Mirabegron Response in Women With Overactive Bladder

18. august 2026 oppdatert av: özgür aslan, Bagcilar Training and Research Hospital

Predictive Capacity of Baseline Neutrophil-to-Lymphocyte Ratio, Platelet-to-Lymphocyte Ratio, and Systemic Immune-Inflammation Index for Mirabegron Treatment Response in Women With Overactive Bladder: A Prospective Cohort Study

Overactive bladder (OAB) is associated with systemic chronic inflammation. Indices derived from complete blood count (such as neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and systemic immune-inflammation index (SII)) have shown associations with OAB presence. However, whether baseline inflammatory status predicts response to beta-3 adrenergic agonist therapy remains untested. This prospective observational cohort study evaluates the predictive ability of baseline NLR, PLR, and SII for 3-month treatment response to mirabegron 50 mg in women with OAB.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

BACKGROUND AND RATIONALE: Overactive bladder (OAB) is a chronic lower urinary tract condition characterized by urinary urgency, usually accompanied by frequency and nocturia, with or without urgency incontinence. Beta-3 adrenoceptor agonists such as mirabegron are an established first-line pharmacological option, yet the individual treatment response varies considerably. Emerging evidence links systemic low-grade inflammation to OAB pathophysiology. Baseline hematological indices derived from the routine complete blood count, such as the neutrophil-to-lymphocyte ratio (NLR), the platelet-to-lymphocyte ratio (PLR), and the systemic immune-inflammation index (SII), may therefore carry predictive information at no additional cost.

STUDY OBJECTIVES: This prospective observational cohort study evaluates whether baseline NLR predicts the clinical response to standard mirabegron therapy (50 mg/day) at 3 months in treatment-naive women with OAB. The discriminative ability of baseline PLR and SII and the adjusted association of NLR with response are evaluated as secondary objectives.

METHODS: Consecutive eligible treatment-naive women in whom mirabegron 50 mg is initiated within routine clinical care are enrolled. Baseline evaluation includes clinical assessment, a 3-day voiding diary, a validated symptom questionnaire, routine urodynamic parameters, and a standardized complete blood count. Inflammatory indices are calculated with standard formulas. Response is assessed at 3 months. Data are collected on standardized case report forms and verified against electronic medical records.

STATISTICAL CONSIDERATIONS: The enrollment target is 115 patients to reach 80 evaluable patients. The discriminative ability of baseline inflammatory indices will be evaluated with ROC curve analysis; multivariable modeling will be used to assess adjusted associations. Details are prespecified in the study protocol.

Studietype

Observasjonsmessig

Registrering (Antatt)

115

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Tyrkia (Türkiye)
    • Bagcilar
      • Istanbul, Bagcilar, Tyrkia (Türkiye), 34200
        • Bagcilar Training and Research Hospital
        • Ta kontakt med:
        • Hovedetterforsker:
          • Özgür Aslan, MD

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Treatment-naive adult women with overactive bladder attending the urogynecology outpatient clinic of a tertiary referral hospital in Istanbul, Turkey, in whom mirabegron 50 mg is initiated within routine clinical care. Consecutive eligible patients are enrolled.

Beskrivelse

Inclusion Criteria:

  • Female patients aged 18 years or older
  • Overactive bladder symptoms for at least 3 months
  • Mirabegron 50 mg planned by physician decision within routine care
  • Ability to provide written informed consent

Exclusion Criteria:

  • Any previous OAB-specific treatment other than behavioral therapy (oral antimuscarinic or beta-3 agonist, intravesical botulinum toxin, sacral neuromodulation, or posterior tibial nerve stimulation)
  • Acute infection within the last 4 weeks, including culture-confirmed urinary tract infection
  • Chronic inflammatory disease (rheumatologic or autoimmune disease, or inflammatory bowel disease)
  • Active malignancy or cancer treatment within the last 5 years
  • Use of systemic glucocorticoids within the last 4 weeks, or chronic NSAID or immunosuppressive use
  • Conditions affecting lower urinary tract function other than OAB (neurogenic bladder, urinary tract stones, history of pelvic radiotherapy or bladder surgery, pelvic organ prolapse stage 3 or higher, or stress-predominant mixed urinary incontinence)
  • Known diagnosis of hematologic disease, anemia (Hb<9), or platelet disorder (PLT<100.000 or >600.000)
  • Significant renal or hepatic impairment (eGFR below 30 mL/min/1.73 m2, or Child-Pugh class B or C)
  • Uncontrolled hypertension (180/110 mmHg or higher) or any other contraindication to mirabegron
  • Pregnancy or lactation
  • Major surgery or trauma within the last 3 months
  • Cognitive or functional inability to complete the voiding diary

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Treatment-naive OAB cohort
Treatment-naive adult women with overactive bladder in whom mirabegron 50 mg once daily is initiated by physician decision within routine clinical care. Baseline assessment includes a 3-day voiding diary, the OAB-q short form, routine urodynamic evaluation, and a standardized complete blood count; treatment response is assessed at 3 months.
Legemiddel: Mirabegron (beta3-adrenoceptor agonist)
Mirabegron 50 mg orally once daily, initiated and managed by the treating physician as part of routine clinical care. The drug is not assigned by the study protocol; the study observes patients in whom this treatment has been started within standard practice.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Discriminative ability of baseline neutrophil-to-lymphocyte ratio for mirabegron treatment response
Tidsramme: 3 months
Treatment response is defined as a composite of a reduction of at least 50 percent from baseline in the symptom severity score of the Overactive Bladder Questionnaire Short Form (OAB-q SF) AND a reduction of at least 2 in the mean number of daily urgency episodes on a 3-day voiding diary; both conditions are required. The OAB-q SF symptom severity score is transformed to a 0 to 100 scale, with higher scores indicating greater symptom severity; a decrease therefore represents improvement. The area under the ROC curve (AUC) of baseline neutrophil-to-lymphocyte ratio for discriminating responders from non-responders is reported with its 95 percent confidence interval.
3 months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Discriminative ability of baseline platelet-to-lymphocyte ratio for mirabegron treatment response
Tidsramme: 3 months
The area under the ROC curve of baseline PLR for discriminating responders from non-responders (composite response definition) is reported with its 95 percent confidence interval.
3 months
Discriminative ability of baseline systemic immune-inflammation index for mirabegron treatment response
Tidsramme: 3 months
The area under the ROC curve of baseline SII for discriminating responders from non-responders (composite response definition) is reported with its 95 percent confidence interval.
3 months
Association of baseline NLR with mirabegron treatment response adjusted for clinical covariates
Tidsramme: 3 months
The adjusted odds ratio and 95 percent confidence interval for baseline NLR are estimated with composite treatment response as the dependent variable.
3 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Bagcilar Training and Research Hospital

Etterforskere

  • Hovedetterforsker: Özgür Aslan, MD, Bagcilar Training and Research Hospital

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. oktober 2026

Primær fullføring (Antatt)

1. oktober 2027

Studiet fullført (Antatt)

1. november 2027

Datoer for studieregistrering

Først innsendt

15. august 2026

Først innsendt som oppfylte QC-kriteriene

18. august 2026

Først lagt ut (Faktiske)

19. august 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

19. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

18. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • BagcilarTRH-OBSGYN-937

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

Individual participant data will not be shared in order to protect participant privacy and maintain compliance with institutional data protection regulations. De-identified aggregate data that support the findings of this study will be available upon reasonable request from the corresponding author.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Abonnere