Clinical trial Recruiting at 3 sites Phase 4 Interventional Ages 18 and up

Reducing how often biologic injections are given for chronic nasal polyps

Official title: Tapering of Biologics in Chronic Rhinosinusitis With Nasal Polyps

Run by Copenhagen University Hospital, Rigshospitalet · NCT07187583 · Data updated 2026-11-12

This study will test whether spacing out mepolizumab or dupilumab injections to every 6–8 weeks keeps symptoms controlled in adults with partly controlled chronic rhinosinusitis with nasal polyps.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment135 (estimated)
SponsorCopenhagen University Hospital, Rigshospitalet
Academic / other
Drugs / interventionsdupilumab, mepolizumab
Locations9 sites (Aalborg and 8 other locations)
StatusRecruiting
StartedJune 5, 2025
Main results expectedMarch 1, 2028
Study endsMarch 1, 2028
Registry record updatedSeptember 23, 2025
Trial IDNCT07187583 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18) currently receiving mepolizumab 100 mg or dupilumab 300 mg every four weeks for at least three months whose CRSwNP has been 'partly controlled' for at least one year per protocol criteria are ideal candidates.

Probably not a fit

Patients with an excellent response to biologics, those with unstable or worsening CRSwNP, or those unable to attend regular in-person follow‑up are unlikely to receive benefit from tapering.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a national, investigator‑initiated, randomized, open‑label phase 4 non‑inferiority trial comparing extended dosing intervals with standard 4‑week dosing in adults with CRSwNP treated with mepolizumab 100 mg or dupilumab 300 mg. About 135 patients across Danish ENT centers will be randomized 1:1 to continue 4‑weekly dosing or to increase to 6 weeks at baseline and to 8 weeks at week 26 if control is maintained, with reversion to the last effective interval if symptoms worsen. Clinical follow‑ups including endoscopic rhinoscopy, smell testing, and symptom questionnaires occur at weeks 0, 12, 26, 38, and 52, and the trial is monitored under Good Clinical Practice. Randomization is computer‑based (REDCap) and the design aims to reflect real‑world clinical practice.

Why it matters

Potential benefit: If successful, patients may maintain symptom control with fewer injections, reducing clinic visits, treatment burden, and potentially costs.

How similar studies have gone: Tapering biologic therapies has shown mixed but promising results in asthma and other eosinophilic diseases, while randomized evidence specifically in CRSwNP is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ≥18 years of age.
* Currently receiving treatment with either dupilumab (300 mg) or mepolizumab (100 mg) every four weeks.
* Having received the biologic at unchanged dosing interval for at least three months.
* For at least one year during treatment with biologics, the patients' CRSwNP must be categorized as "partly controlled" as defined by presence of 1-2 of the following seven items (also available in EPOS 2020 table in protocol):

  1. Nasal blockage: present on most days of the week
  2. Rhinorrhoea/postnasal drip: mucopurulent on most days of the week
  3. Facial pain/pressure: present on most days of the week
  4. Sense of smell: impaired
  5. Sleep disturbance or fatigue: present
  6. Nasal endoscopy: diseased mucosa
  7. Rescue treatment (systemic corticosteroids, ESS, antibiotics): need of 1 course of rescue treatment

of which 1-5 will be scored by the patient using VAS (0-10) and noted above 5.

Exclusion Criteria:

* Patients with excellent response to biologics (0 of the above-mentioned 7 items for partly controlled disease)
* Patients with no or limited response to biologics (\>2 of the above-mentioned 7 items for partly controlled disease)
* Patients with a cancer diagnosis deemed by the investigator to preclude participation in the trial
* Patients who, because of language barriers, are not able to understand Danish written information and, thus, are not able to answer questionnaires
* Patients who currently receive biologics for any other disease (asthma not included)
* Patients who are not able to give informed consent (i.e., patients who are permanently incapable)
* Patients who are not eligible because of the investigator's judgement
* Patients who experience pregnancy during the study will be excluded after an unscheduled visit - active IVF treatment (please see below)
* Unwillingness to follow the study procedure

Where it's running

  • Department of Otorhinolaryngology, Head and Neck Surgery & Audiology, Copenhagen University, Rigshospitalet
    Copenhagen, Denmark
    Recruiting
  • Dept of otorhinolaryngology, Nordsjaellands Hospital
    Hillerød, Denmark
    Recruiting
  • Dept of otorhinolaryngology, Sjællands Universitetshospital
    Køge, Denmark
    Recruiting
  • Dept of otorhinolaryngology, Aalborg University Hospital
    Aalborg, Denmark
    Not yet recruiting
  • Dept of otorhinolaryngology, head and neck surgery, Aarhus University Hospital
    Aarhus, Denmark
    Not yet recruiting
  • Esbjerg Og Grindsted Sygehus
    Esbjerg, Denmark
    Not yet recruiting
Show 3 more locations
  • Dept of otorhinolaryngology, Gødstrup Regional Hospital
    Herning, Denmark
    Not yet recruiting
  • Dept of otorhinolaryngology, Odense University Hospital
    Odense, Denmark
    Not yet recruiting
  • Dept of otorhinolaryngology, Lillebaelt Hospital
    Vejle, Denmark
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.