Allergy and airway disease

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Status: active. Topic ID: allergy_airway. Evidence cutoff and last successful selective baseline check: September 13, 2026. Older studies below are baseline context, not new September findings.

Current state

New COPD registry tables add detailed efficacy and harms to older AERIFY-1 and ALIENTO results; companion pivotal trials were negative, and itepekimab remains discontinued. Ensifentrine’s ENHANCE-3 registers a larger exacerbation study, separate from its existing U.S. maintenance approval. Food allergy, asthma and sinus programs retain distinct indications and endpoints.

Questions to follow

• Food allergy: accidental-exposure protection, desensitization versus sustained unresponsiveness after stopping treatment, dietary freedom, quality of life, treatment burden, anaphylaxis and eosinophilic gastrointestinal disease. Follow biologics, oral/patch/sublingual immunotherapy and new human-stage approaches.
• Environmental allergy: symptom and medication reductions under ordinary seasonal/home exposure, including rhinitis, conjunctivitis and associated asthma. Keep challenge-chamber findings and skin-test changes separate from everyday benefit.
• Asthma/COPD: exacerbations, hospitalizations, oral-steroid exposure, breathing/function, lung-function decline, mortality, adherence and harms; specify eosinophils, smoking history and background inhalers rather than generalizing across phenotypes.
• Chronic sinus disease: congestion, smell, patient-reported function, steroid use, surgery decisions and recurrence. Separate disease with polyps from disease without polyps. Cross-link immunology with autoimmune therapies when appropriate.

Programs and next milestones

Focused update — 2026-10-16

ENHANCE-3 registers a large COPD exacerbation trial

First posted October 15 — NCT07874815. Merck’s ENHANCE-3 (MK-5884-031/RPL554) plans 2,136 adults with COPD at elevated exacerbation risk. Participants receive twice-daily nebulized ensifentrine or matched placebo, alongside standard inhaler treatment. The primary outcome is the annualized rate of adjudicated moderate/severe exacerbations over 52 weeks; lung function, quality of life and harms are also assessed.

Status: Not yet recruiting; October 23, 2026 start and April 29, 2029 primary/final completion are estimates. No new results or mortality benefit.

U.S. context: Ensifentrine’s Ohtuvayre formulation was approved June 26, 2024 for maintenance treatment of adult COPD. That existing use is separate from the result of this new trial; it is not an acute rescue treatment.

Sources: Source 1; Source 2.

AERIFY-1 posts detailed tables; itepekimab remains discontinued

New registry disclosure, not a new topline — NCT04701983. October 15 tables supplement the May 2025 announcement. Phase 3 AERIFY-1 randomized 1,127 former smokers with COPD. In the order every-two-week / every-four-week / placebo, efficacy denominators are 375/377/375; adjusted moderate/severe exacerbation rates are 0.650/0.708/0.891 per participant-year. Active/placebo rate ratios are 0.729 (95% CI 0.598–0.890), p=.0019, and 0.795 (0.654–0.966), p=.0213. Both pass the prespecified ordered primary tests. These are recurrent-event rates, not absolute patient-risk reductions.

Safety uses 374/377/374 treated participants: serious treatment-emergent events 68/72/82, treatment stops for adverse events 9/11/14. AE follow-up extends approximately 58 or 78 weeks depending on extension entry; it is not uniformly 52 weeks. All-cause deaths 5/4/9 use still longer, unequal follow-up, potentially 242 weeks, and do not establish mortality benefit or treatment causation.

Context/U.S.: AERIFY-2 failed its primary endpoint; itepekimab development was discontinued in July 2026. These newly posted tables do not reopen the program or establish approval.

Sources: Source 1; Source 2; Source 3; Source 4.

ALIENTO posts detailed efficacy and safety tables

Registry disclosure October 16 — NCT05037929. ALIENTO’s topline dates to July 2025 and its Lancet paper to May 18, 2026. This is Phase 2b, not Phase 3. Among 433/437/431 initial-phase participants (every-two-week/every-four-week/placebo), adjusted 52-week moderate/severe exacerbation rates are 1.110/1.222/1.315 per patient-year. Registry active/placebo rate ratios are 0.845 (95% CI 0.715–0.998), p=.0468, and 0.930 (0.789–1.095), p=.3829. The first primary test passes, the second fails; a failed low-eosinophil secondary gate limits later confirmatory claims.

Safety spans 449/442/442 actually treated participants, including later enrollment and assignment differences, for up to 98.1 weeks. Any AEs: 367/370/386; serious AEs: 111/126/137; all-cause deaths: 13/11/16. These are descriptive, not uniformly 52-week risks or evidence of mortality benefit.

Context/U.S.: The Lancet abstract reports p=.049; the small source discrepancy is unexplained, so it is retained separately. Companion Phase 3 ARNASA failed its primary endpoint. Astegolimab remains investigational; no verified U.S. approval or filing date. Extension completion is estimated June 30, 2027, not an FDA decision date.

Sources: Source 1; Source 2; Source 3; Source 4; Source 5; Source 6.

Remaining gaps: All saved named registry records and every page of bounded September 5–October 16 CT.gov discovery were retrieved; 153 discovery records were screened selectively. Retrieval is not full appraisal. Worldwide registries, all publications/regulatory files, complete harms and original audio/transcripts remain incomplete. Prior full successful-check dates are preserved. COPD SAPs and primary disclosure history were independently checked. ALIENTO registry versus paper p-value differs slightly without a verified explanation; full Lancet text remains inaccessible.

Informal-source coverage: Targeted Reddit, interview, podcast and saved unresolved-claim searches were appraised selectively; original recordings and worldwide informal coverage remain incomplete. Routine anecdotes and reposts were not treated as new trial evidence.

Full coverage record.

Focused update — 2026-10-13

SUPRA-COPD will test urolithin A alongside pulmonary rehabilitation

First posted October 13, 2026. NCT07871357 plans a masked randomized phase 2 study in 198 adults with COPD, comparing urolithin A 1,000 mg daily with placebo during eight weeks of pulmonary rehabilitation. Primary constant-work-rate exercise endurance differs from secondary six-minute walk distance, quadriceps strength, quality of life and DXA body composition. The adaptive sample-size re-estimation at 50% recruitment may change the final planned sample.

Status/limits/safety/U.S.: Not yet recruiting; no results or harms rates. A mitophagy rationale does not demonstrate improved breathing, reduced exacerbations or longer life. Supplement marketing is not a COPD drug approval. Timing: November 2026 estimated start; December 2029 estimated primary/final completion. No public readout date.

Sources: Source 1.

Inhaled cell therapy registers an early COPD safety study

First posted October 13, 2026. SMSbiotech’s NCT07871890 plans 125 adults with moderate/severe COPD in sequential open-label phase 1b/2a safety and expansion cohorts. The protocol administers sponsor-named small mobile stem cells by nebulizer on days 1, 3 and 6, with the same regimen in both cohorts. Safety, laboratory/ECG/vital-sign abnormalities, lung-function changes and inhalation/hypersensitivity reactions are primary assessments; there is no placebo arm.

Status/limits/U.S.: Not yet recruiting despite an October 1 estimated start. No efficacy or safety results, independent comparative evidence or verified U.S. marketing approval. Registration alone does not substantiate regeneration or authorize commercial treatment. Timing: October 2027 primary and December 2027 final completion remain month-precision estimates, not readout promises.

Sources: Source 1.

Remaining gaps: All saved named registry records retrieved and all pages of bounded September5/6–October13 CT.gov discovery downloaded; 135 records screened selectively. Retrieval is not full appraisal. Worldwide registries, all publications/regulatory files, comprehensive harms and full audio/transcripts remain incomplete; prior full successful-check dates preserved. No fuller acute-COPD absolute effect/CI/harms or verified VIASKIN FDA action date recovered; broad food/sinus coverage incomplete.

Informal-source coverage: Targeted rademikibart/VIASKIN/asthma Reddit and podcast searches mainly returned known topline/submission reposts and patient experience. No fresh distinct development claim selected; full talk/transcript coverage incomplete.

Full coverage record.

Focused update — 2026-10-09

Tilrekimig registers a recruiting phase 3 severe-asthma trial

First posted October 9, 2026; registry-reported actual start September 30. NCT07869043 plans 1,100 adults and adolescents with severe asthma, randomized and masked to subcutaneous tilrekimig/PF-07275315 or placebo alongside background care. Its primary endpoint is annualized protocol-defined exacerbations over fifty-two weeks; lung function, symptom control, quality of life and remission are distinct secondary measures.

Mechanism/evidence limits: Pfizer describes a trispecific antibody against IL-4, IL-13 and TSLP. Its October 1 atopic-dermatitis report concerns a different indication and cannot establish asthma efficacy. No results or numerical safety rates are posted for this phase 3 trial; recruitment is not demonstrated benefit.

U.S./next: Investigational. Estimated primary completion June 7, 2029, final August 30, 2029; no announced readout date.

Primary registry; October 1 sponsor mechanism/context.

Remaining gaps: All saved named NCT records refreshed and all pages of official overlap discovery screened (131 returned records). Search starts September 5/6 from the last full successful check, not October 6 alone. Incidental matches excluded; literature, international registries, all regulatory files and complete podcast/audio appraisal remain incomplete.; No fuller rademikibart acute-COPD absolute-count/CI/harms table or verified VIASKIN filing acceptance/action date recovered. Food/environmental allergy and sinus literature remain incomplete; no approval inferred from submission.

Informal-source coverage: Reddit rademikibart/VIASKIN and allergy podcast discovery mainly surfaced known sponsor readout/submission reposts and personal treatment experience. No independent new development rumor selected. Original conference audio and broader seasonal/sinus informal survey remain unappraised.

Full coverage record.

Focused update — 2026-10-06

Small peanut-immunotherapy trial misses abatacept’s primary immune endpoint

Source date: September 30, 2026 publication; recovered October 6. Evidence: Phase 2a randomized trial, primary abstract; full paper not appraised.

Fourteen participants aged 14–50 with severe peanut allergy were assigned 1:1 to abatacept or placebo added to 24 weeks of oral immunotherapy, then 12 weeks of immunotherapy alone. The primary relative peanut-specific/total IgE-ratio change was 48.2% versus 87.9%, p=.26. Median minimal reactive doses were similar (3,000 mg) after four weeks of avoidance. Overall adverse-event counts averaged 5.9 versus 10 per participant (p=.006).

Limits/safety: Very small trial; the primary biomarker hypothesis was not supported. Exploratory tolerability does not establish lasting food-allergy remission or a favorable long-term immunosuppression tradeoff. Separate symptom reactions, laboratory markers and sustained tolerance. Trial identifier and detailed safety tables were not recovered.

U.S./next: This paper does not establish an abatacept food-allergy indication or guideline change. Larger controlled confirmation would be needed; no date announced.

Primary abstract; publication DOI.

Adolescent asthma study registers a triple-inhaler comparison

Source date: October 5, 2026 first posting. Evidence: NCT07858123, randomized masked phase 3 study, not yet recruiting.

Seven hundred planned adolescents with asthma receive beclometasone/formoterol/glycopyrronium (CHF5993) or fluticasone/salmeterol (Seretide). Primary endpoint is adjusted change in pre-dose FEV1 at week 26.

Limits/safety/U.S.: No results or adverse-event rates; improved spirometry would not itself establish durable remission or fewer serious exacerbations. Registration does not establish U.S. authorization for this population/formulation.

Next: November 16, 2026 estimated start; June 26, 2030 estimated primary/final completion.

Primary registry.

Coverage: Official registry overlap discovery

Remaining gaps: Named registry refresh and overlap discovery completed; comprehensive literature, all regulatory files and informal transcripts remain incomplete. Full-topic successful-check date is preserved. Official registry discovery returned 120 records, from all returned pages; appraisal focused on named programs and new first postings. Incidental matches were excluded. No fuller rademikibart absolute event/safety table or verified VIASKIN filing-acceptance target recovered. Sinus-disease and guideline survey incomplete.

Informal-source coverage: Focused Reddit and named-program searches; anecdotes/reposts were not treated as trial evidence. Broader podcast/talk coverage remains incomplete.

Full coverage record.

Focused update — 2026-10-02

Rademikibart acute-COPD phase 2 reports fewer treatment failures

Source/event date: 2026-09-30. Evidence: Sponsor-only preliminary randomized phase 2 topline.

Seabreeze STAT COPD (NCT06940154) randomized 159 adults with acute COPD exacerbation and eosinophils ≥300/µL to one rademikibart injection or placebo alongside standard care. Sponsor reports 81% relative reduction in 28-day treatment failure (p=0.0122), a composite of death, COPD rehospitalization/emergency or unscheduled visits, and treatment intensification. Moderate/severe exacerbations fell 85% relatively (p=0.030). Absolute counts and confidence intervals were undisclosed. Week-4 FEV1 improved 70 mL versus placebo, without statistical significance (p=0.1607); key secondary week-1 results were not reported. Adverse and serious adverse events were qualitatively described as lower, without a numerical table. Eight-week follow-up cannot establish long-term safety. Registry says completed (actual n159, final August 26), without posted results. This COPD result is distinct from the earlier asthma primary-endpoint miss. Rademikibart remains investigational. Sponsor.

Next milestone: Sponsor plans FDA discussions on phase 3; full efficacy/safety tables and meeting timing remain undated.

Source 1; Source 2.

VIASKIN Peanut BLA submitted for children aged 4–7

Source/event date: 2026-09-29. Evidence: Sponsor-reported regulatory submission.

DBV announced VIASKIN Peanut BLA submission for peanut-allergic children aged 4–7 on September 29 at 18:29 Eastern. Priority Review was requested; FDA acceptance or granted Priority Review has not been established. The dossier uses VITESSE (NCT05741476), a randomized double-blind 2:1 patch-versus-placebo trial of 654 children over 12 months. This is a filing milestone, not new efficacy, approval, cure, or evidence that unrestricted peanut consumption is safe. No VIASKIN product is approved, according to the sponsor. The separate toddler group is not included in this application. Sponsor.

Next milestone: FDA filing acceptance, review designation and action date remain unverified.

Source 1; Source 2.

Coverage: rademikibart Seabreeze STAT COPD September 30 2026 results; DBV VIASKIN Peanut BLA September 29 2026; NCT06940154 NCT05741476 current registry; rademikibart VIASKIN Reddit September 2026.

Remaining gaps: COPD release omits absolute event counts, confidence intervals, quantitative harms and key secondary week-1 FEV1; no registry result tables. VITESSE registry January update predates actual n654. Submission does not equal FDA acceptance or granted Priority Review. Broad COPD/asthma/sinus/allergy discovery and informal transcript coverage incomplete.

Informal-source coverage: No additional attributable signal selected in this focused search; No independent noteworthy rumor selected; two sponsor forecast milestones now formally reported.

Next update: VIASKIN filing acceptance/action date and COPD phase 3 alignment remain undated. Requested Priority Review is not granted Priority Review.

Full coverage record.

Focused update — 2026-09-29

Related findings:

• Engineered-phage STEPS-CF trial receives conditional UK authorization.

Coverage: September 6–29 overlap, rademikibart COPD/VIASKIN filing and new airway trial discovery; cross-link STEPS-CF.

Remaining gaps: September COPD readout and Q3 VIASKIN filing not verified complete; neither window has elapsed on September29. Environmental/food-allergy, sinus and full ERS source/registry census incomplete.

Informal-source coverage: Reddit investor posts repeat September CNTB forecasts; DBV secondary conference transcript echoes filing plans. No original recording establishing a completed filing/result was appraised.

Full coverage record.

Focused update — 2026-09-27

No additional finding was verified in the reviewed sources. Coverage remains partial; this is not a full-topic “no news” conclusion.

Coverage: Rademikibart asthma and VIASKIN VITESSE registry snapshots; targeted COPD readout/BLA and ERS follow-up discovery.

Remaining gaps: Current DBV press-page access failed; no new BLA acceptance or completed filing verified. Rademikibart COPD September/Q3 readout window remains unconfirmed and has not elapsed on September 27. Full ERS abstracts, food/environmental allergy and all relevant registries not appraised. Stale VITESSE registry enrollment should not replace sponsor actual trial counts.

Informal-source coverage: Reddit investor anticipation and a secondary DBV transcript surfaced; underlying conference recording not reviewed. Forecast repetition is not evidence of results or regulatory action.

Full coverage record.

Focused update — 2026-09-22

Acute-asthma rademikibart study misses its primary endpoint

Source date: 2026-09-15. Event date: 2026-09-15. Evidence: Sponsor topline; overlap-window finding.

Seabreeze STAT Asthma missed statistical significance on 28-day treatment failure despite a reported 66% relative reduction (p=.153). The day-7 lung-function secondary endpoint improved. NCT06940141 randomized 160 patients with acute asthma exacerbation and type-2 inflammation to a single 600-mg dose plus standard care (79) or placebo plus standard care (81). FEV1 improved 250 versus 120 mL, a 130-mL difference (p=.023).

Limitations: The sponsor’s positive headline does not change the primary-endpoint miss. FEV1 is not interchangeable with fewer hospitalizations or treatment failures. Absolute primary-event counts and uncertainty intervals were not supplied in the release.

Safety: Serious adverse events: 1 active versus 3 placebo; no adverse-event discontinuations reported. Short follow-up cannot establish long-term safety.

U.S. status: Investigational; no U.S. approval.

Next milestone: COPD topline remains sponsor-forecast for September 2026; proposed phase 3 design and FDA alignment are not established.

Connect September 15 release; Seabreeze STAT Asthma registry.

Related findings:

• ARIKAYCE broader-use application gets priority review.

Coverage: Recovered September15 rademikibart primary-endpoint miss; verified original registry and VIASKIN filing forecast.

Remaining gaps: Rademikibart exploratory-subgroup full paper inaccessible; all ERS abstracts/environmental-allergy studies not fully reviewed. No original COPD topline or actual VIASKIN BLA submission verified.

Informal-source coverage: September8 Reddit discussion anticipated September readouts and correctly distinguished FEV1 from primary treatment failure; later actual result recorded separately, not rumor confirmation of efficacy. Bio Report190 Sept2 describes preclinical allergy CAR-T work, no verified human trial. https://www.reddit.com/r/biotech_stocks/comments/1waqxwm/cntb_has_two_phase_2_results_coming_this_month/

Full coverage record.

Next update: Rademikibart COPD topline and VIASKIN filing remain September/Q3 2026 sponsor forecasts; no approval or COPD result inferred.

Focused update — 2026-09-18

Inhaled RNA interference reaches human lung target-engagement evidence

Source date: 2026-09-09. Evidence: Peer-reviewed randomized phase 1/2a study.

ARO-RAGE reduced its lung inflammatory target in early human research; fewer asthma attacks or COPD benefit have not been demonstrated. NCT05276570 studied healthy volunteers and mild-to-moderate type-2 asthma. The published cohorts include 58 treated healthy volunteers and 19 treated asthma patients, with 29 placebo participants. The study focused on safety and target engagement; pulmonary-function measures were safety assessments, not powered efficacy tests.

Limitations: The registry lists 127 overall participants, while the published cohorts total 106; the abstract active-treatment counts must not be represented as all randomized participants. No clinical-outcome benefit is inferred from soluble-RAGE reduction.

Safety: Headache and respiratory infections were common. COVID-19 occurred in 14/58 treated healthy volunteers versus 2/23 placebo. One delayed pre-eclampsia serious event was assessed unrelated; no asthma serious events. Small cohorts cannot settle uncommon harms.

U.S. status: Investigational inhaled siRNA; no U.S. approval.

Next milestone: Separate phase 2a NCT07241546 is recruiting (target 36); primary completion December 2027 is a registry estimate, not a promised readout.

Nature Medicine, September 9; Original full text; Next study.

Coverage: ARO-RAGE original full text and both registry records; tozorakimab/VIASKIN and new human airway searches. This is a focused review, not a complete re-review of every program.

Remaining gaps: VIASKIN Q3 filing remains a forecast in source checked; full ERS abstracts, rademikibart exploratory subgroups and broader environmental-allergy trials remain partial.

Informal-source coverage: Reddit/podcast and investor remarks searched; Sept18 stories repeated earlier filing plans, not verified submission. Original September investor recording not appraised.

Full coverage record.

Next expected updates: Tozorakimab’s US COPD decision is anticipated in Q1 2027, per the September 8 sponsor announcement; no exact day was verified. VIASKIN Peanut filing in Q3 2026 for ages 4–7, and conditionally H2 2026 for ages 1–3, remain sponsor forecasts, not confirmed filings or FDA decision dates.

Food-allergy interpretation and safety. OUtMATCH Stage 2 was reported in a conference journal supplement, summarized by NIH; completer-only response proportions were similar. Omalizumab carries anaphylaxis risk and is not emergency treatment. VIASKIN's December 16, 2025 sponsor topline reported mostly local skin reactions, with treatment-related anaphylaxis in 0.5% (two children); its challenge-response difference was 31.8 percentage points (95% CI 24.5–39.0). The older H1 2026 filing forecast was superseded by Q3 guidance. VIASKIN topline.

Airway limitations and negative findings. Depemokimab's less frequent dosing does not establish equivalence when switching from another successful biologic: GSK reported that the NIMBLE switching study failed its statistical non-inferiority criterion. Monitor hypersensitivity and helminth-infection precautions. GSK Q1 2026 update. For COPD, MATINEE's benefits concern exacerbations on triple inhaled therapy; adverse-event incidence was similar between groups. Itepekimab development was discontinued in COPD, CRSwNP and sinus disease without polyps according to the July 2026 filing. Retain that outcome when scouting new IL-33/TSLP and other programs rather than resurrecting obsolete trial forecasts.

Dated history

2026-10-02 — Scheduled focused review

2 newly recorded findings or milestones; primary evidence, uncertainty and incomplete coverage are detailed above and in the run record. Full-topic successful-check dates remain unchanged.

• 2026-09-29: 0 sourced entries, 1 cross-topic links and 0 informal-source checks. Coverage and gaps.

• 2026-09-27: 0 sourced entries and 0 cross-topic links from a focused scheduled check. Coverage and remaining gaps.

• 2026-09-22: Focused scheduled research retry; 1 sourced entries and 1 cross-topic links. Coverage and gaps.

2026-09-14 — Focused ad-hoc update

Tozorakimab reduces COPD exacerbations in two phase 3 trials; US review underway. Full OBERON and TITANIA results evaluated tozorakimab 300 mg every four weeks for 52 weeks in COPD with prior exacerbations despite inhaled maintenance therapy. In the primary former-smoker population, annualized moderate/severe exacerbations were 1.34 versus 1.90 in OBERON (rate ratio 0.71, 95% CI 0.57–0.88) and 1.37 versus 2.07 in TITANIA (0.66, 0.55–0.80). Overall adverse-event frequencies were 70.4% versus 77.2% and 80.1% versus 79.8%, respectively. These are exacerbation outcomes, not mortality evidence. AstraZeneca also reported FDA Priority Review of the COPD application, with an anticipated decision during Q1 2027. Tozorakimab remains investigational. NEJM article, September 8. Original abstract record. AstraZeneca, September 8.

Next: Anticipated FDA decision during Q1 2027; no exact PDUFA day was established. The September 8 full results add information beyond the earlier March topline.

Source and coverage limits: The journal abstract was retrieved through Europe PMC after direct publisher access failed. Its treatment-group counts differ from the total randomized count in the sponsor release; no total enrollment figure is asserted here pending reconciliation. DBV filing forecasts, other ERS data and respiratory/food-allergy programs were searched selectively, but the full conference data, all major sponsors and trial-registry changes were not comprehensively reviewed. Informal searches did not establish a new substantiated rumor or a causal treatment conclusion from observational semaglutide discussion. This is a partial refresh.

• September 13, 2026 — selective baseline completed: Checked NIH/FDA records, original human-study abstracts, trial registration and dated sponsor/SEC updates, including June–September coverage. Established separate food, environmental, asthma, COPD and sinus scopes; captured revised VIASKIN filing windows and itepekimab discontinuation. Some evidence remains sponsor-only; no comprehensive informal-source search or exhaustive program census was performed. No rumor was added. This is a new-topic baseline, not an all-topic monitoring run.

September 13 scope-expansion record.

2026-09-18 — Scheduled focused review

ARO-RAGE original full text and both registry records; tozorakimab/VIASKIN and new human airway searches. Original event dates, safety and limitations are retained in the September 18 update above. The complete-topic successful-check date was not advanced because the listed gaps remain. Run record.