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Afimkibart

Phase 3

Moderately to Severely Active Crohns Disease | Small molecule | Immunology |Roche Holding AG|Trials Updated: Oct 16, 2026

Afimkibart development status

Highest phase Phase 3
Registered trials 17 across 2 sponsors since Jun 2023

Afimkibart target and mechanism

ModalitySmall molecule

Also known as RO7790121, PF-06480605, RVT-3101, RG6631

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials14
Total Enrollment2,989

FDA Designations

No designations recorded

Afimkibart clinical trials

Afimkibart · 14 trials · 7 indications

Phase 3 7Phase 2 5Phase 1 2
NCT07846683A Study to Assess the Efficacy and Safety of Afimkibart for Induction Therapy in Participants With Moderately to Severely Active Ulcerative ColitisModerately to Severely Active Ulcerative Colitis
NOT YET_RECRUITING350 Analytics
NCT07298421A Study to Assess the Pharmacokinetics, Effectiveness and Safety of Afimkibart for Induction and Maintenance Therapy in Children With Moderately to Severely Active Crohn's DiseaseModerately to Severely Active Crohns Disease
RECRUITING100 Analytics
NCT07158242A Study to Evaluate the Pharmacokinetics, Safety and Efficacy of Afimkibart (RO7790121) in Children With Moderately to Severely Active Ulcerative ColitisModerately to Severely Active Ulcerative Colitis
RECRUITING100 Analytics
NCT06819891A Study to Assess the Efficacy and Safety of Induction Therapy With Afimkibart (RO7790121) in Participants With Moderately to Severely Active Crohn's DiseaseModerately to Severely Active Crohns Disease
RECRUITING425 Analytics
NCT06819878A Study to Assess the Efficacy and Safety of Induction and Maintenance Therapy With Afimkibart (RO7790121) in Participants With Moderately to Severely Active Crohn's DiseaseModerately to Severely Active Crohns Disease
RECRUITING600 Analytics
NCT06588855A Study to Assess the Efficacy and Safety of Induction Therapy With Afimkibart (Also Known as RO7790121) in Participants With Moderately to Severely Active Ulcerative ColitisModerately to Severely Active Ulcerative Colitis
ACTIVE NOT_RECRUITING350 Analytics
NCT06589986A Study to Assess the Efficacy and Safety of Afimkibart (Also Known as RO7790121) for Induction and Maintenance Therapy in Participants With Moderately to Severely Active Ulcerative ColitisModerately to Severely Active Ulcerative Colitis
ACTIVE NOT_RECRUITING400 Analytics
PHASE3NOT YET_RECRUITING
A Study to Assess the Efficacy and Safety of Afimkibart for Induction Therapy in Participants With Moderately to Severely Active Ulcerative Colitis
Moderately to Severely Active Ulcerative ColitisUnlock trial analytics
PHASE3RECRUITING
A Study to Assess the Pharmacokinetics, Effectiveness and Safety of Afimkibart for Induction and Maintenance Therapy in Children With Moderately to Severely Active Crohn's Disease
Moderately to Severely Active Crohns DiseaseUnlock trial analytics
PHASE3RECRUITING
A Study to Evaluate the Pharmacokinetics, Safety and Efficacy of Afimkibart (RO7790121) in Children With Moderately to Severely Active Ulcerative Colitis
Moderately to Severely Active Ulcerative ColitisUnlock trial analytics
PHASE3RECRUITING
A Study to Assess the Efficacy and Safety of Induction Therapy With Afimkibart (RO7790121) in Participants With Moderately to Severely Active Crohn's Disease
Moderately to Severely Active Crohns DiseaseUnlock trial analytics
PHASE3RECRUITING
A Study to Assess the Efficacy and Safety of Induction and Maintenance Therapy With Afimkibart (RO7790121) in Participants With Moderately to Severely Active Crohn's Disease
Moderately to Severely Active Crohns DiseaseUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Assess the Efficacy and Safety of Induction Therapy With Afimkibart (Also Known as RO7790121) in Participants With Moderately to Severely Active Ulcerative Colitis
Moderately to Severely Active Ulcerative ColitisUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Assess the Efficacy and Safety of Afimkibart (Also Known as RO7790121) for Induction and Maintenance Therapy in Participants With Moderately to Severely Active Ulcerative Colitis
Moderately to Severely Active Ulcerative ColitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Clinical Remission
At Week 12
Percentage of Participants With Clinical Remission per Pediatric Crohn's Disease Activity Index (PCDAI)
At Week 52
Percentage of Participants With Endoscopic Response
At Week 52
Percentage of Participants With Clinical Remission at Week 52
At Week 52
Percentage of Participants with Clinical Remission per Crohn's Disease Activity Index (CDAI) Score
At Week 12

Percentage of participants achieving a CDAI score of \<150. The index is a weighted sum of scores on eight components: number of liquid or soft stools (stool frequency), abdominal pain, general well-being, number of complications, use of anti-diarrheal medication, presence of an abdominal mass, hematocrit, and percentage deviation from standard body weight. CDAI generally ranges from 0 to roughly 600, with higher values indicating greater activity.

Percentage of Participants with Clinical Remission at Week 12
At Week 12

Percentage of participants achieving Modified Mayo Score (mMS) \<=2 with stool frequency subscore (SFS) = 0 or 1 (up to 1-2 stools more than normal), rectal bleeding subscore (RBS) = 0 (no blood seen) and endoscopic subscore (ES) = 0 or 1 (normal appearance of mucosa or mild disease) at Week 12. mMS is a composite score of ulcerative colitis disease activity, given by the sum of three subscores: SFS, RBS and ES. Each subscore is measured on a scale from 0 to 3, with higher values associated with greater severity.

Percentage of Participants With Adverse Events (AEs)
From Baseline up to 6 years
Percentage of Participants with Adverse Events
From Baseline up to 6 years
Change from Baseline in Disease Activity Score-28 for Rheumatoid Arthritis with C-Reactive Protein (DAS28-CRP)
Baseline, At Week 14
Percentage of Participants who Achieve Eczema Area and Severity Index-75 (EASI-75) Response (>= 75% Improvement from Baseline) at Week 16
Baseline and Week 16
Incidence of Treatment-Emergent Adverse Events (TEAE), Serious Adverse Events (SAE) and AE Leading to Discontinuation
Until end of study, approximately 5 years
Area Under the Plasma Concentration-time Curve Up to Time t (AUC0-t [AUC last]) of CYP Probe Substrates (Midazolam, 1-OH-Midazolam, Omeprazole, 5-OH-Omeprazole, Dextromethorphan, Dextrorphan, R-Warfarin, S-Warfarin, Caffeine, and Paraxanthine)
Up to approximately 13 weeks
Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (AUCinf) of CYP Probe Substrates (Midazolam, 1-OH-Midazolam, Omeprazole, 5-OH-Omeprazole, Dextromethorphan, Dextrorphan, R-Warfarin, S-Warfarin, Caffeine, and Paraxanthine)
Up to approximately 13 weeks
Maximum Plasma Concentration (Cmax) of CYP Probe Substrates (Midazolam, 1-OH-Midazolam, Omeprazole, 5-OH-Omeprazole, Dextromethorphan, Dextrorphan, R-Warfarin, S-Warfarin, Caffeine, and Paraxanthine)
Up to approximately 13 weeks
Time to Maximum Concentration (Tmax) of CYP Probe Substrates (Midazolam, 1-OH-Midazolam, Omeprazole, 5-OH-Omeprazole, Dextromethorphan, Dextrorphan, R-Warfarin, S-Warfarin, Caffeine, and Paraxanthine)
Up to approximately 13 weeks
Elimination Half-life (T1/2) of CYP Probe Substrates (Midazolam, 1-OH-Midazolam, Omeprazole, 5-OH-Omeprazole, Dextromethorphan, Dextrorphan, R-Warfarin, S-Warfarin, Caffeine, and Paraxanthine)
Up to approximately 13 weeks
Metabolite-to-parent Area Under the Curve From Time 0 (AUC0-t) Ratio for CYP Probe Substrates (Midazolam and 1-OH-Midazolam, Omeprazole and 5-OH-Omeprazole, Dextromethorphan and Dextrorphan, and Caffeine and Paraxanthine)
Up to approximately 13 weeks
Metabolite-to-parent Area Under the Concentration-time Curve from Time 0 to Infinity (AUC0-inf) Ratio for CYP Probe Substrates (Midazolam and 1-OH-Midazolam, Omeprazole and 5-OH-Omeprazole, Dextromethorphan and Dextrorphan, and Caffeine and Paraxanthine)
Up to approximately 13 weeks
Metabolite-to-parent Concentration of CYP Probe Substrates (Midazolam and 1-OH-Midazolam, Omeprazole and 5-OH-Omeprazole, Dextromethorphan and Dextrorphan, and Caffeine and Paraxanthine)
Up to approximately 13 weeks

Secondary Endpoints

Change From Baseline in Stool Frequency Subscore (SFS)
From Baseline up to Week 12
Change From Baseline in Rectal Bleeding Subscore (RBS)
From Baseline up to Week 12
Percentage of Participants With Symptomatic Response
At Week 4
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
AfimkibartEXPERIMENTALParticipants will receive afimkibart administered as subcutaneous (SC) injection.
PlaceboPLACEBO_COMPARATORParticipants will receive placebo adminsitered as SC injection.
Afimkibart Dose AEXPERIMENTALParticipants will receive Afimkibart intravenously (IV) followed by Afimkibart subcutaneous (SC) injection.
Afimkibart Dose BEXPERIMENTALParticipants will receive Afimkibart IV followed by Afimkibart SC.
Arm 1: AfimkibartEXPERIMENTALParticipants will receive afimkibart intravenously (IV) followed by afimkibart subcutaneous (SC) injection.
Arm 2: AfimkibartEXPERIMENTALParticipants will receive afimkibart IV followed by afimkibart SC injection.
Arm 3: PlaceboPLACEBO_COMPARATORParticipants will receive placebo IV followed by placebo SC.
Afimkibart Group IEXPERIMENTALParticipants will recieve Afimkibart as subcutaneous (SC) injection.
Afimkibart Group IIEXPERIMENTALParticipants will receive Afimkibart as SC injection.
Afimkibart Group IIIEXPERIMENTALParticipants will receive afimkibart via SC injection.
Treatment Sequence A; Drug: Afimkibart (RO7790121) Induction dose A, Maintenance dose and OLE doseEXPERIMENTAL -
Treatment Sequence B; Drug: Afimkibart (RO7790121) Induction dose B, Maintenance dose and OLE doseEXPERIMENTAL -
Afimkibart Treatment and CYP Cocktail GroupEXPERIMENTALParticipants will receive doses of a CYP cocktail and doses of afimkibart in the DDDI phase, followed by an optional long-term extension phase.
RO7790121EXPERIMENTALParticiapants will receive RO7790121 via intravenous (IV) infusion followed by subcutaneous (SC) injections.

Interventions

NameTypeDescription
AfimkibartDRUGAfimkibart will be administered as SC injection.
PlaceboDRUGPlacebo will be administered as SC injection.
CaffeineDRUGCaffeine will be administered orally as part of a CYP cocktail per the schedule defined in the protocol.
WarfarinDRUGWarfarin will be administered orally as part of a CYP cocktail per the schedule defined in the protocol.
OmeprazoleDRUGOmeprazole will be administered orally as part of a CYP cocktail per the schedule defined in the protocol.
DextromethorphanDRUGDextromethorphan will be administered orally as part of a CYP cocktail per the schedule defined in the protocol.
MidazolamDRUGMidazolam will be administered orally as part of a CYP cocktail per the schedule defined in the protocol.
Vitamin KOTHERVitamin K will be administered orally as a rescue medication following warfarin administration per the schedule outlined in the protocol.
RO7790121DRUGParticipants will be administered RO7790121 via IV infusion on Day 1, and Weeks 2, 6 and 10. Participants will then be administered RO7790121 SC injections every four weeks (Q4W) from week 14 up to and including Week 50.
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Eligibility Criteria

Age Range16 Years to 80 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Confirmed diagnosis of UC. * Moderately to severely active UC assessed by modified Mayo Score (mMS). * Bodyweight \>= 40 kilogram (kg). * Up to date with colorectal cancer (CRC) screening performed according to local standards. * Demonstrated inadequate response, loss of respo...

Countries:United StatesAustraliaBrazilMexicoSouth AfricaTaiwanThailandUnited KingdomCanadaChinaArgentinaAustriaBelgiumBulgariaChileColombiaCroatiaCzechiaFranceGermanyHungaryIndiaIsraelItalyPolandPortugalPuerto RicoRomaniaSlovakiaSouth KoreaSpainDenmarkDominican RepublicGuatemalaJapanNetherlandsPanamaSerbiaUnited Arab Emirates
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Recent Changes (Last 90 Days)

LOWOct 16, 2026NCT07620392lastUpdatePostDate: changed
LOWOct 16, 2026NCT07665723lastUpdatePostDate: changed
LOWOct 16, 2026NCT06819878lastUpdatePostDate: changed
LOWOct 16, 2026NCT07137598lastUpdatePostDate: changed
LOWOct 16, 2026NCT07620392lastUpdatePostDate: changed
LOWOct 16, 2026NCT07665723lastUpdatePostDate: changed
LOWOct 16, 2026NCT06819878lastUpdatePostDate: changed
LOWOct 16, 2026NCT07137598lastUpdatePostDate: changed
LOWOct 8, 2026NCT06903065Enrollment: 50 → 56
LOWOct 8, 2026NCT06903065Enrollment: 50 → 56
LOWOct 8, 2026NCT06903065Enrollment: 50 → 56
LOWOct 6, 2026NCT07223697lastUpdatePostDate: changed
LOWOct 6, 2026NCT07298421lastUpdatePostDate: changed
LOWOct 6, 2026NCT07158242lastUpdatePostDate: changed
LOWOct 6, 2026NCT07298421lastUpdatePostDate: changed
LOWOct 6, 2026NCT07158242lastUpdatePostDate: changed
LOWOct 6, 2026NCT07223697lastUpdatePostDate: changed
MEDIUMOct 2, 2026NCT06588855Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMOct 2, 2026NCT06588855Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWSep 30, 2026NCT06903065lastUpdatePostDate: changed

Frequently asked questions about Afimkibart

What is Afimkibart?

Afimkibart is an investigational small molecule drug developed by Roche Holding AG for inflammatory and metabolic conditions. It is being studied in ulcerative colitis, Crohn's disease, atopic dermatitis, MASH, and rheumatoid arthritis. Afimkibart is also known as RO7790121. It remains in clinical development and is not established as an approved therapy.

What is Afimkibart used for?

Afimkibart is being studied for moderately to severely active ulcerative colitis and moderately to severely active Crohn's disease, including pediatric Crohn's disease. Research programs also cover atopic dermatitis, MASH, and rheumatoid arthritis. These are investigational uses under clinical study, not approved indications.

Who makes Afimkibart?

Roche Holding AG develops Afimkibart, which carries the company code RO7790121. Roche trades on the OTC market under the ticker RHHBY. The company sponsors the clinical trial program evaluating the drug across gastrointestinal, dermatologic, metabolic, and rheumatologic conditions.

What phase is Afimkibart in?

Afimkibart is in Phase 1 development overall, with individual studies spanning Phase 1 through Phase 3. Four trials are active, including a Phase 3 induction study in ulcerative colitis and a Phase 3 pediatric Crohn's disease study. No trials have been completed. Afimkibart is investigational and not FDA approved.

What clinical trials is Afimkibart in?

Afimkibart trials include NCT07846683, a Phase 3 induction study in moderately to severely active ulcerative colitis, and NCT07298421, a Phase 3 study in children with Crohn's disease. NCT07665723 is a Phase 1 drug interaction study in ulcerative colitis, and NCT07620392 is a Phase 2 extension study in rheumatoid arthritis.

Is Afimkibart the same as RO7790121?

Yes, Afimkibart and RO7790121 refer to the same investigational drug from Roche Holding AG. RO7790121 is the company designation, while Afimkibart is the drug's name. Both terms appear in connection with the same clinical trial program in ulcerative colitis, Crohn's disease, and related conditions.