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Venlafaxine Combined With Education and Behavioral Intervention for Bladder Pain Syndrome (VEN-BPS)

7. juli 2026 oppdatert av: Fang Luo, Beijing Tiantan Hospital

A Multicenter, Open-label, Observer-blinded Randomized Controlled Trial Comparing the Efficacy and Safety of Venlafaxine Plus Education and Behavioral Modification Program Versus Education and Behavioral Modification Program Alone in Adults With Interstitial Cystitis/Bladder Pain Syndrome

This study aims to compare two treatment plans for adults with bladder pain syndrome (also called interstitial cystitis), a disease that causes long-lasting bladder pain, frequent urination and urgent need to pee. All participants will receive standardized patient education and behavioral training to relieve urinary discomfort. Half of the participants will only get this behavioral intervention, while the other half will take oral venlafaxine in addition to the same behavioral training for 12 weeks. We will check patients' pain levels, urination frequency, sleep quality, mood and daily life ability at 1, 2, 6 and 12 weeks of treatment. The main goal is to see whether adding venlafaxine can better ease bladder pain and urinary symptoms without obvious side effects. This research will provide safer and more effective treatment suggestions for patients with bladder pain syndrome.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

140

Fase

  • Fase 1

Kontakter og plasseringer

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

Studiekontakt

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

Beskrivelse

Inclusion Criteria:

Age ≥ 18 years (all genders) Confirmed IC/BPS diagnosis fulfilling AUA 2015 and ESSIC standardized diagnostic criteria, ruled out confounding urologic disorders Predominant lower urinary tract symptoms present for most days in the past 3 months Baseline bladder/pelvic pain and urinary frequency score ≥ 3 points on 0-10 Likert scale within prior 4 weeks

Exclusion Criteria:

Symptomatic urethral stricture Active degenerative/inflammatory neurological disease altering bladder/intestinal function Uncontrolled active autoimmune disease or systemic infection Medical history of pelvic tuberculosis, pelvic radiotherapy or chemotherapy-induced cystitis History of non-cutaneous malignant tumors Current diagnosis of severe psychiatric disorders (major depressive disorder, bipolar disorder, schizophrenia, psychotic disorders) Clinically significant moderate-severe cardiac, pulmonary, hepatic or renal insufficiency Documented hypersensitivity to venlafaxine or other SNRI drugs Concurrent regular use of antibiotics or NSAIDs throughout trial period Pregnancy or breastfeeding state at screening

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Annen: Arm 1 Control Arm (n=70)
Intervention Name: Education and Behavioral Modification Program (EBMP) Only Intervention Description: Standardized 12-week behavioral intervention including IC/BPS disease education, bladder irritant dietary restriction guidance, timed bladder training, pelvic floor relaxation training, stress and sleep adjustment guidance. No additional oral antidepressants, analgesics or NSAIDs permitted throughout trial. Weekly telephone follow-up for adherence monitoring.
Atferdsmessig: Education and Behavioral Modification Program (EBMP) only
12-week standardized behavioral intervention without additional oral drugs, including IC/BPS disease education, bladder irritant dietary restriction, timed bladder training, pelvic floor relaxation training and sleep/stress adjustment guidance. Weekly telephone follow-up to monitor adherence; no antidepressants or analgesics permitted throughout the study period.
Eksperimentell: Arm 2 Experimental Arm (n=70)
Intervention Name: Venlafaxine + Education and Behavioral Modification Program (EBMP) Intervention Description: Full identical EBMP intervention as control group, plus flexible-dose oral venlafaxine for 12 weeks. Week 1 starting dose: 75mg once daily evening administration; Week3 escalate to 150mg daily if well-tolerated; Week5 maximum titration up to 225mg daily based on individual tolerance and symptom improvement. Dose down-titration allowed for intolerable adverse events to identify individual maximum tolerated dose (MTD), maintained until week12 endpoint. No rescue analgesic, NSAID or other antidepressant allowed during study period. Weekly telephone follow-up to record drug compliance and adverse reactions.
Legemiddel: Venlafaxine oral tablet combined with Education and Behavioral Modification Program (EBMP)
Oral venlafaxine with flexible dose titration for 12 weeks plus standardized EBMP. Initial dose 75mg once daily in week 1, escalate to 150mg daily at week 3, maximum up to 225mg daily based on tolerance and symptom improvement. All participants receive identical disease education, bladder training, dietary guidance and psychological stress management training weekly. No other antidepressants, NSAIDs or rescue analgesics are allowed during the trial.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Patient Self-reported Global Response Assessment (GRA)
Tidsramme: 12 weeks after randomization
Binary clinical response endpoint, defined as significant overall improvement in bladder pain and urinary symptoms versus minimal/no improvement, completed by participants at the 12-week treatment endpoint.
12 weeks after randomization

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Mean Visual Analog Scale (VAS) Bladder Pain Score
Tidsramme: Baseline, Week 1, Week2, Week6, Week12
0-10 Likert scale; higher scores represent more severe bladder/pelvic discomfort.
Baseline, Week 1, Week2, Week6, Week12
Pelvic Pain and Urgency/Frequency (PUF) Total Score
Tidsramme: Baseline, Week 1, Week2, Week6, Week12
8-item scale total score ranging 0-40; higher scores indicate worse pelvic pain and lower urinary tract symptoms.
Baseline, Week 1, Week2, Week6, Week12
O'Leary-Sant ICSI + ICPI Composite Symptom Score
Tidsramme: Baseline, Week 1, Week2, Week6, Week12
ICSI (0-20) evaluates frequency, nocturia, urgency and pain; ICPI (0-16) measures symptom-related life interference.
Baseline, Week 1, Week2, Week6, Week12

Samarbeidspartnere og etterforskere

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

Sponsor

Beijing Tiantan Hospital

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)

31. desember 2026

Primær fullføring (Antatt)

30. desember 2027

Studiet fullført (Antatt)

31. desember 2027

Datoer for studieregistrering

Først innsendt

7. juli 2026

Først innsendt som oppfylte QC-kriteriene

7. juli 2026

Først lagt ut (Faktiske)

13. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

13. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

7. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 2026YJSKTPG

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

UBESLUTTE

IPD-planbeskrivelse

The plan for sharing individual participant data (IPD) has not yet been finalized. After trial completion, the research team will evaluate data sharing feasibility under the supervision of the Institutional Review Board, including assessment of participant privacy protection, data de-identification procedures, institutional data management policies and relevant domestic clinical research data regulations. A formal data sharing plan will be formulated and updated to this registry before study results publication.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

produkt produsert i og eksportert fra USA

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. .

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