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Post-Vasectomy Pain RCT

11. september 2026 oppdatert av: Aaron Brant, Columbia University

A Randomized Controlled Trial of Post-vasectomy Pain Management

This is a prospective four-armed unblinded randomized controlled trial to assess four different potential post-operative treatment options for men who undergo a vasectomy. The aims of this study are:

  • To determine whether the addition of nonsteroidal anti-inflammatory drugs (NSAIDs) to acetaminophen results in improved pain after vasectomy;
  • To determine whether the addition of opioid pain medication to acetaminophen and/or NSAIDs results in improved pain after vasectomy;
  • To determine whether the use of NSAIDs for post-operative pain management increases risk of hematoma after vasectomy.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

The purpose of this study is to evaluate and compare commonly used post-vasectomy pain regimens. Eligible participants will be adult male patients who elect to undergo vasectomy with a urologist at Columbia University Medical Center with no history of kidney or liver disease, chronic pain conditions, or drug abuse. Prospectively enrolled participants will be randomized to one of four study arms, which will differ by post-operative pain regimens as follows:

  • Arm 1: 975 mg acetaminophen every 6 hours for the first 48 hours to a maximum of 7 days;
  • Arm 2: 975 mg acetaminophen and 600 mg ibuprofen every 6 hours for the first 48 hours to a maximum of 7 days;
  • Arm 3: 975 mg acetaminophen every 6 hours for the first 48 hours to a maximum of 7 days with a prescription for 6 tablets of 5 mg oxycodone every 6 hours as needed;
  • Arm 4: 975 mg acetaminophen and 600 mg ibuprofen every 6 hours for the first 48 hours to a maximum of 7 days with a prescription for 6 tablets of 5 mg oxycodone every 6 hours as needed.

Other than the differing pain regimens, all treatment and pre- and post-operative counselling will be standard of care at the discretion of the treating urologists. Participants will be contacted at 1 day and 7 days post-operatively to complete Brief Pain Inventory (BPI) questionnaires, assess how many tablets of oxycodone they have taken, and assess whether they would be comfortable returning to work. At post-operative visits, their treating urologist will assess them for the presence of hematoma. Comparisons will be made between study arms to assess for differences.

Studietype

Intervensjonell

Registrering (Antatt)

200

Fase

  • Fase 1

Kontakter og plasseringer

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

Studiekontakt

Studiesteder

  • Forente stater
    • New York
      • New York, New York, Forente stater, 10032
        • Rekruttering
        • Columbia University Medical Center/ New York Presbyterian Hospital
        • Ta kontakt med:
        • Hovedetterforsker:
          • Aaron M Brant, MD
      • White Plains, New York, Forente stater, 10604
        • Rekruttering
        • New York-Presbyterian The One
        • Ta kontakt med:

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:

- Consent for vasectomy

Exclusion Criteria:

  • History of kidney or liver disease
  • History of chronic pain condition
  • History of drug abuse

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

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

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Acetaminophen only
Participants are encouraged to take only acetaminophen 975 mg every 6 hours for the first 48 hours to a maximum of 7 days after surgery.
Legemiddel: Acetaminophen
Acetaminophen is a widely used, over-the-counter medication that relieves mild to moderate pain and reduces fever. Unlike NSAIDs like ibuprofen, it does not treat inflammation or swelling.
Andre navn:
  • paracetamol
  • APAP
Eksperimentell: Acetaminophen + ibuprofen
Participants are encouraged to take acetaminophen 975 mg and ibuprofen 600 mg every 6 hours for the first 48 hours to a maximum 7 days after surgery.
Legemiddel: Acetaminophen
Acetaminophen is a widely used, over-the-counter medication that relieves mild to moderate pain and reduces fever. Unlike NSAIDs like ibuprofen, it does not treat inflammation or swelling.
Andre navn:
  • paracetamol
  • APAP
Legemiddel: ibuprofen
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate pain, reduce fever, and decrease inflammation.
Andre navn:
  • Motrin
Eksperimentell: Acetaminophen + oxycodone
Participants are encouraged to take acetaminophen 975 mg every 6 hours for the first 48 hours to a maximum of 7 days after surgery, and a prescription for 6 tablets of oxycodone 5 mg will be prescribed to take every 6 hours as needed for pain.
Legemiddel: Acetaminophen
Acetaminophen is a widely used, over-the-counter medication that relieves mild to moderate pain and reduces fever. Unlike NSAIDs like ibuprofen, it does not treat inflammation or swelling.
Andre navn:
  • paracetamol
  • APAP
Legemiddel: oxycodone
Oxycodone is a potent semi-synthetic opioid analgesic used to treat moderate to severe pain when other treatments are insufficient
Andre navn:
  • Oxycodone Hydrochloride Capsules
Eksperimentell: Acetaminophen + ibuprofen + oxycodone
Participants are encouraged to take acetaminophen 976 mg and ibuprofen 600 mg every 6 hours for the first 48 hours to a maximum of 7 days after surgery, and a prescription for 6 tablets of oxycodone 5 mg will be prescribed to take every 6 hours as needed for pain.
Legemiddel: Acetaminophen
Acetaminophen is a widely used, over-the-counter medication that relieves mild to moderate pain and reduces fever. Unlike NSAIDs like ibuprofen, it does not treat inflammation or swelling.
Andre navn:
  • paracetamol
  • APAP
Legemiddel: ibuprofen
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve mild to moderate pain, reduce fever, and decrease inflammation.
Andre navn:
  • Motrin
Legemiddel: oxycodone
Oxycodone is a potent semi-synthetic opioid analgesic used to treat moderate to severe pain when other treatments are insufficient
Andre navn:
  • Oxycodone Hydrochloride Capsules

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Brief Pain Inventory (BPI) - Total Score
Tidsramme: 1 to 7 days post operatively
The Brief Pain Inventory is a self-reported questionnaire to assess pain. Final scores will be averaged. The score range is 0 to 10, where a higher score indicates a worse outcome.
1 to 7 days post operatively

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Brief Pain Inventory (BPI) - Pain Interference Score
Tidsramme: 1 to 7 days post operatively
The Pain Interference Score ranges from 0 to 10, where a higher score indicates greater interference with daily life.
1 to 7 days post operatively
Brief Pain Inventory (BPI) - Pain Severity Score
Tidsramme: 1 to 7 days post operatively
The Pain Severity Score ranges from 0 to 10, where a higher score indicates greater severity.
1 to 7 days post operatively

Samarbeidspartnere og etterforskere

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

Sponsor

Columbia University

Etterforskere

  • Hovedetterforsker: Aaron Brant, MD, Columbia University

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 (Faktiske)

10. september 2026

Primær fullføring (Antatt)

31. desember 2030

Studiet fullført (Antatt)

31. desember 2035

Datoer for studieregistrering

Først innsendt

6. september 2026

Først innsendt som oppfylte QC-kriteriene

11. september 2026

Først lagt ut (Faktiske)

17. september 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

17. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

11. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • ACYY1239

Plan for individuelle deltakerdata (IPD)

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Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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