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GSK5784283

Phase 3

Asthma | Small molecule | Respiratory |GSK plc|Trials Updated: Oct 14, 2026

GSK5784283 development status

Highest phase Phase 3
Registered trials 8 across 1 sponsor since Dec 2024

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials8
Total Enrollment2,899

FDA Designations

No designations recorded

GSK5784283 clinical trials

GSK5784283 · 8 trials · 3 indications

Phase 3 6Phase 2 1Phase 1 1
NCT07782970A Study to Assess the Efficacy and Safety of GSK5784283 (Felcorekibart) in Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)Nasal Polyps
RECRUITING218 Analytics
NCT07780656A Study to Investigate the Efficacy and Safety of GSK5784283 (Felcorekibart) Compared With Placebo in Participants With Moderate to Very Severe COPD (PERSIST COPD-2)Pulmonary Disease, Chronic Obstructive
RECRUITING624 Analytics
NCT07782957A Study to Assess the Efficacy and Safety of GSK5784283 (Felcorekibart) Compared With Placebo in Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)Nasal Polyps
RECRUITING218 Analytics
NCT07780643A Study to Investigate the Efficacy and Safety of GSK5784283 Compared With Placebo in Participants With Uncontrolled Asthma (PERSIST ASTHMA-1)Asthma
RECRUITING514 Analytics
NCT07780669A Study to Investigate the Efficacy and Safety of GSK5784283 (Felcorekibart) Compared With Placebo in Participants With Moderate to Very Severe COPD (PERSIST COPD-1)Pulmonary Disease, Chronic Obstructive
RECRUITING624 Analytics
NCT07782996A Study to Investigate the Efficacy and Safety of GSK5784283 Compared With Placebo in Participants With Uncontrolled Asthma (PERSIST ASTHMA-2)Asthma
RECRUITING370 Analytics
PHASE3RECRUITING
A Study to Assess the Efficacy and Safety of GSK5784283 (Felcorekibart) in Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)
Nasal PolypsUnlock trial analytics
PHASE3RECRUITING
A Study to Investigate the Efficacy and Safety of GSK5784283 (Felcorekibart) Compared With Placebo in Participants With Moderate to Very Severe COPD (PERSIST COPD-2)
Pulmonary Disease, Chronic ObstructiveUnlock trial analytics
PHASE3RECRUITING
A Study to Assess the Efficacy and Safety of GSK5784283 (Felcorekibart) Compared With Placebo in Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)
Nasal PolypsUnlock trial analytics
PHASE3RECRUITING
A Study to Investigate the Efficacy and Safety of GSK5784283 Compared With Placebo in Participants With Uncontrolled Asthma (PERSIST ASTHMA-1)
AsthmaUnlock trial analytics
PHASE3RECRUITING
A Study to Investigate the Efficacy and Safety of GSK5784283 (Felcorekibart) Compared With Placebo in Participants With Moderate to Very Severe COPD (PERSIST COPD-1)
Pulmonary Disease, Chronic ObstructiveUnlock trial analytics
PHASE3RECRUITING
A Study to Investigate the Efficacy and Safety of GSK5784283 Compared With Placebo in Participants With Uncontrolled Asthma (PERSIST ASTHMA-2)
AsthmaUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from Baseline in total endoscopic nasal polyps (NP) score at Week 52
Baseline and Week 52

The NP score evaluated by endoscopy ranges from 0 to 4 in each nostril, with higher score indicating worse status. The total endoscopic NP score is the sum of the right and left nostril scores and ranges from 0 to 8, higher scores indicate worse status.

Change from Baseline in mean nasal obstruction score using Verbal Response Scale (VRS) from Week 51 through to Week 52
Baseline, Weeks 51 to 52 (time - average)

Participants will be asked to indicate the severity of nasal obstruction at their worst over the last 24 hours using a 4-point VRS ranging from 0 to 3 with higher scores indicating worse status. The average of daily scores will be calculated, and data will be presented for Weeks 51-52.

Annualized rate of moderate or severe COPD Exacerbations
Up to Week 78

Moderate exacerbations are defined as clinically significant exacerbations that require treatment with oral/systemic corticosteroids and/or antibiotics. Severe exacerbations are defined as clinically significant exacerbations that require in-patient hospitalization (that is greater than or equal to \[\>=\] 24 hours) or result in death.

Annualized rate of clinically significant asthma exacerbations
Up to Week 52

A clinically significant exacerbation is defined as a worsening of asthma symptoms requiring the use of systemic corticosteroids or in-patient hospitalization (that is greater than or equal to \[\>=\] 24 hours) due to asthma.

Part A: Change from baseline in the fraction of exhaled nitric oxide (FeNo)
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Maximum Observed Concentration (Cmax) of GSK5784283 Serum Samples
Pre-dose and up to 253 days post dose
Area Under the Curve from Zero up to 253 Days [AUC(0-253 d)] of GSK5784283 Serum Samples
Pre-dose and up to 253 days post dose

Secondary Endpoints

Change from Baseline in mean symptom score for loss of smell using VRS from Week 51 through to Week 52
Baseline, Weeks 51 to 52 (time - average)
Change from Baseline in the mean CRSwNP composite symptom score (average of symptom VRS scores for nasal obstruction, rhinorrhea [runny nose], loss of smell, and mucus in throat) from Week 51 through to Week 52
Baseline, Weeks 51 to 52 (time - average)
Change from Baseline in Lund Mackay Computed tomography (LMK CT) score at Week 52
Baseline and Week 52
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Participants receiving GSK5784283 + standard of care (SoC)EXPERIMENTAL -
Participants receiving Placebo + SoCPLACEBO_COMPARATOR -
Participants receiving GSK5784283 plus standard of careEXPERIMENTAL -
Participants receiving matching placebo plus standard of carePLACEBO_COMPARATOR -
Part A: Dose Finding - GSK5784283EXPERIMENTAL -
Part A: Dose Finding - PlaceboEXPERIMENTAL -
Part B: Extended Dosing - GSK5784283EXPERIMENTAL -
Part B: Extended Dosing - PlaceboEXPERIMENTAL -
GSK5784283 Test FormulationEXPERIMENTAL -
GSK5784283 Reference FormulationEXPERIMENTAL -

Interventions

NameTypeDescription
GSK5784283DRUGGSK5784283 will be administered.
PlaceboDRUGPlacebo will be administered.
Standard of CareDRUGStandard of Care will be administered.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria: * 18 years of age and older * Male or eligible female participants * Physician-diagnosed CRSwNP for greater than or equals to (\>=) 12 months before screening. * Have had at least one of the following at Visit 1: * Any documented history of Nasal surgery for the removal of NP...

Countries:United StatesPuerto RicoAustraliaBulgariaCanadaCzechiaGermanyJapanRomaniaSpainUnited Kingdom
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Recent Changes (Last 90 Days)

LOWOct 14, 2026NCT07782970Status: NOT_YET_RECRUITING → RECRUITING
LOWOct 14, 2026NCT07782970Status: NOT_YET_RECRUITING → RECRUITING
LOWOct 9, 2026NCT07782957lastUpdatePostDate: changed
LOWOct 9, 2026NCT07782957lastUpdatePostDate: changed
LOWSep 30, 2026NCT07782996Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 30, 2026NCT07782996Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 28, 2026NCT07782996startDate: changed
LOWSep 28, 2026NCT07782996startDate: changed
LOWSep 25, 2026NCT07780643Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 25, 2026NCT07780656Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 25, 2026NCT07780643Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 25, 2026NCT07780656Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 22, 2026NCT07782957Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 22, 2026NCT07782957Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 9, 2026NCT07780669Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 9, 2026NCT07780669Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 24, 2026NCT07782970NEW_TRIAL: changed
LOWAug 24, 2026NCT07782996NEW_TRIAL: changed
LOWAug 24, 2026NCT07782957NEW_TRIAL: changed
LOWAug 24, 2026NCT07782970NEW_TRIAL: changed

Frequently asked questions about GSK5784283

What is GSK5784283 used for?

GSK5784283 is being developed for respiratory conditions including uncontrolled asthma, chronic rhinosinusitis with nasal polyps, and moderate to very severe chronic obstructive pulmonary disease. It is an investigational small molecule in Phase 3 development and has not been approved for any indication.

Who is developing GSK5784283?

GSK5784283 is developed by GSK plc, which trades under the ticker GSK. The company is running the Phase 3 clinical program for the drug across asthma, nasal polyps, and COPD indications.

What phase is GSK5784283 in?

GSK5784283 is in Phase 3 clinical development. Four Phase 3 trials are currently active and recruiting participants, with no completed trials to date. The drug remains investigational and has not received regulatory approval for any indication.

What clinical trials is GSK5784283 in?

GSK5784283 is being studied in four recruiting Phase 3 trials: NCT07782996 in uncontrolled asthma (PERSIST ASTHMA-2), NCT07782970 and NCT07782957 in chronic rhinosinusitis with nasal polyps, and NCT07780669 in moderate to very severe COPD (PERSIST COPD-1). Total planned enrollment across these trials is 1,248 participants.

Is GSK5784283 the same as felcorekibart?

Yes, felcorekibart is an alternative name for GSK5784283. The Phase 3 trial titles for the nasal polyps and COPD studies refer to the drug as GSK5784283 (Felcorekibart), so both names identify the same investigational compound.

How is GSK5784283 studied in its clinical trials?

The GSK5784283 Phase 3 program uses randomized, double-blind, controlled designs. The four active trials enroll participants with asthma, nasal polyps, or COPD, with minimum ages of 12 years for asthma and 18 to 40 years for the nasal polyp and COPD studies.