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SPY001

Phase 2

Ulcerative Colitis | Small molecule | Gastrointestinal |Spyre Therapeutics, Inc.|Last Updated: Sep 1, 2026

Target and mechanism

Molecular targetα4β7
Target classIntegrin
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials2
Total Enrollment1,290

FDA Designations

No designations recorded

Clinical trial landscape

SPY001 · 2 trials · 4 indications

Phase 2 2
NCT07652294Long-term Safety and Efficacy of Multiple Long-acting Antibodies Alone and in Combinations for IBDUlcerative Colitis
ENROLLING BY_INVITATION645 Analytics
NCT07012395A Study of Long-acting Antibodies Alone and in Combinations for Moderate to Severe Ulcerative ColitisUlcerative Colitis
RECRUITING645 Analytics
PHASE2ENROLLING BY_INVITATION
Long-term Safety and Efficacy of Multiple Long-acting Antibodies Alone and in Combinations for IBD
Ulcerative ColitisUnlock trial analytics
PHASE2RECRUITING
A Study of Long-acting Antibodies Alone and in Combinations for Moderate to Severe Ulcerative Colitis
Ulcerative ColitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants who experienced an adverse event
Week 96

Incidence of treatment-emergent adverse events (TEAEs) as measured over time.

Part A: Change in Robarts Histopathology Index (RHI)
Week 12

Change in Robarts Histopathology Index (RHI) from baseline at Week 12 will be assessed. The RHI is used to quantify and assess histological activity of UC, comprising of scores for inflammatory infiltrates, neutrophils, erosions or ulceration. Scores are assigned to each of these features, with a total ranging from 0 (no disease activity) to 33 (most severe disease activity). Higher score indicates more severe disease.

Part B: Percentage of participants with clinical remission
Week 12

Percentage of participants with clinical remission at Week 12 will be assessed. Clinical remission is based on the modified Mayo subscores, which consist of a rectal bleeding subscore (ranging from 0 to 3), stool frequency subscore (ranging from 0 to 3), and endoscopic subscore (ranging from 0 to 3), as assessed by central reading. Higher scores indicate more severe disease.

Secondary Endpoints

Percentage of participants with endoscopic improvement
Week 48
Part A: Percentage of participants with clinical remission
Week 12
Part A: Percentage of participants with endoscopic improvement
Week 12
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SPY001 Dosing Regimen 1EXPERIMENTALParticipants will receive SPY001
SPY002 Dosing Regimen 1EXPERIMENTALParticipants will receive SPY002
SPY003 Dosing Regimen 1EXPERIMENTALParticipants will receive SPY003
SPY001 Dosing Regimen 2EXPERIMENTALParticipants will receive SPY001
SPY002 Dosing Regimen 2EXPERIMENTALParticipants will receive SPY002
SPY003 Dosing Regimen 2EXPERIMENTALParticipants will receive SPY003
SPY001 & SPY002EXPERIMENTALParticipants will receive SPY001 and SPY002
SPY001 & SPY003EXPERIMENTALParticipants will receive SPY001 and SPY003
SPY002 & SPY003EXPERIMENTALParticipants will receive SPY002 and SPY003
SPY002 Dosing Regimen 3EXPERIMENTALParticipants will receive SPY002
Intervention Specific Appendix - SPY001: Part AEXPERIMENTALParticipants will receive open-label dose of SPY001
Intervention Specific Appendix - SPY002: Part AEXPERIMENTALParticipants will receive open-label dose of SPY002
Intervention Specific Appendix - SPY003: Part AEXPERIMENTALParticipants will receive open-label dose of SPY003
Intervention Specific Appendix - SPY001 Dosing Regimen 1: Part BEXPERIMENTALParticipants will receive double-blind dosing regimen 1 of SPY001
Intervention Specific Appendix - SPY001 Dosing Regimen 2: Part BEXPERIMENTALParticipants will receive double-blind dosing regimen 2 of SPY001
Intervention Specific Appendix - SPY002 Dosing Regimen 1: Part BEXPERIMENTALParticipants will receive double-blind dosing regimen 1 of SPY002
Intervention Specific Appendix - SPY002 Dosing Regimen 2: Part BEXPERIMENTALParticipants will receive double-blind dosing regimen 2 of SPY002
Intervention Specific Appendix - SPY003 Dosing Regimen 1: Part BEXPERIMENTALParticipants will receive double-blind dosing regimen 1 of SPY003
Intervention Specific Appendix - SPY003 Dosing Regimen 2: Part BEXPERIMENTALParticipants will receive double-blind dosing regimen 2 of SPY003
Intervention Specific Appendix - SPY120: Part BEXPERIMENTALParticipants will receive double-blind dose of SPY001 and SPY002
Intervention Specific Appendix - SPY130: Part BEXPERIMENTALParticipants will receive double-blind dose of SPY001 and SPY003
Intervention Specific Appendix - SPY230: Part BEXPERIMENTALParticipants will receive double-blind dose of SPY002 and SPY003
Placebo: Part BPLACEBO_COMPARATORParticipants will receive matching placebo

Interventions

NameTypeDescription
SPY001DRUGExperimental
SPY002DRUGExperimental
SPY003DRUGExperimental
PlaceboOTHERPlacebo
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites41

Inclusion Criteria: Participants must meet 1 of the following criteria from Study SPY123-201: 1. Completed Part A and deemed to be receiving clinical benefit by the judgement of the Investigator 2. Completed Part B 3. Participated in Part B and met escape criteria per the SPY123-201 protocol (ie, ...

Countries:United StatesArgentinaAustraliaBelgiumCzechiaGeorgiaGreeceHungaryItalyJordanMoldovaPolandRomaniaSerbiaSlovakiaSouth KoreaTaiwanUkraineAustriaBosnia and HerzegovinaBrazilBulgariaCanadaChileCroatiaFranceGermanyIndiaIsraelJapanLithuaniaMexicoSpainSwitzerlandTurkey (Türkiye)
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Recent Changes (Last 90 Days)

LOWSep 1, 2026NCT07652294lastUpdatePostDate: changed
LOWSep 1, 2026NCT07652294lastUpdatePostDate: changed
LOWAug 25, 2026NCT07012395lastUpdatePostDate: changed
LOWAug 25, 2026NCT07652294lastUpdatePostDate: changed
LOWAug 25, 2026NCT07012395lastUpdatePostDate: changed
LOWAug 25, 2026NCT07652294lastUpdatePostDate: changed
LOWAug 18, 2026NCT07652294lastUpdatePostDate: changed
LOWAug 18, 2026NCT07652294lastUpdatePostDate: changed
LOWAug 3, 2026NCT07652294lastUpdatePostDate: changed
LOWJul 28, 2026NCT07012395lastUpdatePostDate: changed
LOWJul 28, 2026NCT07652294lastUpdatePostDate: changed
LOWJul 28, 2026NCT07012395lastUpdatePostDate: changed
LOWJul 28, 2026NCT07652294lastUpdatePostDate: changed
LOWJul 21, 2026NCT07652294lastUpdatePostDate: changed
MEDIUMJul 17, 2026NCT07012395primaryCompletionDate: changed
MEDIUMJul 17, 2026NCT07012395primaryCompletionDate: changed
MEDIUMJul 17, 2026NCT07012395primaryCompletionDate: changed
LOWJun 29, 2026NCT07012395lastUpdatePostDate: changed
LOWJun 29, 2026NCT07652294lastUpdatePostDate: changed
LOWJun 29, 2026NCT07012395lastUpdatePostDate: changed

Frequently asked questions about SPY001

What is SPY001 used for in ulcerative colitis?

SPY001 is an investigational small molecule being developed for the treatment of moderate to severe ulcerative colitis. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities. The drug is being studied in combination with other long-acting antibodies for this gastrointestinal condition.

What does SPY001 target?

SPY001 targets the α4β7 integrin, a protein involved in immune cell trafficking to the gut. By targeting this integrin, the drug aims to modulate the inflammatory response associated with ulcerative colitis. This mechanism is being evaluated in clinical trials for moderate to severe disease.

Who is developing SPY001?

SPY001 is being developed by Spyre Therapeutics, Inc., a biopharmaceutical company. The company is conducting Phase 2 clinical trials to evaluate the drug's safety and efficacy in patients with moderate to severe ulcerative colitis. Spyre Therapeutics is publicly traded under the ticker SYRE.

What phase is SPY001 in?

SPY001 is in Phase 2 clinical development. It is an investigational drug and has not yet received regulatory approval. The ongoing Phase 2 trials are designed to assess the drug's efficacy and safety in patients with moderate to severe ulcerative colitis.

What clinical trials is SPY001 in?

SPY001 is being studied in two Phase 2 clinical trials. The first, NCT07012395, is recruiting participants with moderate to severe ulcerative colitis. The second, NCT07652294, is enrolling by invitation to evaluate long-term safety and efficacy. Both trials are randomized, double-blind, and controlled, with a combined enrollment of 1290 participants.

Is SPY001 the same as other drugs for ulcerative colitis?

SPY001 is a distinct investigational drug being developed by Spyre Therapeutics. It is being studied alone and in combination with other long-acting antibodies for ulcerative colitis. No alternative names for SPY001 have been disclosed in the clinical trial information.