Dupilumab,
does it really help with Improved congestion, nasal polyps, and disease-specific quality of life in severe chronic rhinosinusitis with nasal polyps?
research showsDupilumab substantially improves congestion and disease-specific quality of life in severe chronic rhinosinusitis with nasal polyps but is rated high C. SINUS-24 and SINUS-52 randomized and analyzed by intention to treat 276 and 448 participants, respectively; both 24-week coprimary outcomes, nasal polyp score and congestion, succeeded in both trials (P<0.0001). SNOT-22 differences of -21.12 and -17.36 exceeded the 8.9-point minimal important difference from Hopkins 2009, but both trials belonged to the same Sanofi-Regeneron development program.
ads claimClaims of curing polyps or permanent benefit after stopping treatment go beyond the evidence. Trials evaluated 24-to-52-week add-on dupilumab while patients continued intranasal corticosteroids.
Useful facts when choosing a product
- All participants in both trials used background intranasal mometasone furoate.
- SNOT-22 ranges from 0 to 110, and Hopkins et al. 2009 established a minimal important difference of 8.9 points.
- Verdict 742, which is B with 76 points, concerns atopic dermatitis; verdict 1771, which is A with 84 points, concerns eosinophilic COPD.
What the research actually shows
SINUS-24 randomized and analyzed 276 participants, while SINUS-52 randomized and analyzed 448. Both prespecified 24-week endoscopic nasal polyp score and patient-diary congestion as coprimary outcomes, and both outcomes succeeded in both trials. SNOT-22 differences were -21.12 (95% CI -25.17 to -17.06) and -17.36 (-20.87 to -13.85), exceeding the 8.9-point minimal important difference from Hopkins 2009. This indication differs from verdict 742, which is B with 76 points for atopic dermatitis, and verdict 1771, which is A with 84 points for eosinophilic COPD.
Why this is classified as C (57)
Both coprimary outcomes succeeded in two trials and SNOT-22 greatly exceeded its 8.9-point minimal important difference, but all evidence comes from one Sanofi-Regeneron development program, giving C with 57 points.
Counterpoint. Benefit was not limited to an endoscopic surrogate; congestion and SNOT-22 also improved substantially. C reflects the independence ceiling, not absence of efficacy.
Rejudgment record. Cross-check applied — Success of both coprimary outcomes in both trials and SNOT-22 benefit exceeding the minimal important difference, capped because all trials belong to one manufacturer development program
| Endpoint | P | Patient-reported treatment goal - the symptom is the goal |
| Replication | R1 | Single confirmatory trial |
| Independence | I0 | Evidence comes only from manufacturer studies |
| Effect size | E+ | Meets the clinically important threshold |
The scoring table and the verdict agree (C).
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Reduced nasal congestion | C | The coprimary congestion endpoint succeeded at P<0.0001 in both trials. |
| Improved disease-specific quality of life | C | SNOT-22 differences of -21.12 and -17.36 exceeded the 8.9-point minimal important difference. |
| Improved loss-of-smell symptoms | C | Patient-reported smell outcomes also improved versus placebo in both manufacturer phase 3 trials. |
Cross-check — Codex and Claude
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Bachert C et al. 2019 (SINUS-24) | Multicenter randomized double-blind placebo-controlled phase 3 trial | 276 | Sanofi and Regeneron Pharmaceuticals; sponsors participated in design, data management, analysis, and manuscript preparation | Coprimary 24-week nasal polyp score and congestion | Differences were -2.06 and -0.89, both P<0.0001, so both coprimary outcomes succeeded; SNOT-22 difference -21.12. | Pivotal manufacturer phase 3 trial |
| Bachert C et al. 2019 (SINUS-52) | Multicenter randomized double-blind placebo-controlled phase 3 trial | 448 | Sanofi and Regeneron Pharmaceuticals; same development program as SINUS-24 | Coprimary 24-week nasal polyp score and congestion | Differences were -1.80 and -0.87, both P<0.0001, so both coprimary outcomes succeeded; SNOT-22 difference -17.36. | Replication within the same manufacturer program |
Receipt — 3 References
All 3 cited sources were verified for existence at the original page (as of 2026-07-24).
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-07-24 · Corrections: none
Cite this verdict
[Chamgap] Dupilumab x symptoms and quality of life in chronic rhinosinusitis with nasal polyps — Evidence Grade C·57. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/immunity/dupilumab-chronic-rhinosinusitis-nasal-polyps-symptoms-quality-of-life/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
What this document does and does not do
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