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ABBV-744

Phase 1

Myelofibrosis (MF) | Small molecule | Hematology |AbbVie Inc.|Last Updated: Jul 16, 2025

Target and mechanism

Molecular targetBET
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment21

FDA Designations

No designations recorded

Clinical trial landscape

ABBV-744 · 1 trial · 1 indication

Phase 1 1
NCT04454658Safety and Tolerability Study of Oral ABBV-744 Tablet Alone or in Combination With Oral Ruxolitinib Tablet or Oral Navitoclax Tablet in Adult Participants With MyelofibrosisMyelofibrosis (MF)
ACTIVE NOT_RECRUITING21 Analytics
PHASE1ACTIVE NOT_RECRUITING
Safety and Tolerability Study of Oral ABBV-744 Tablet Alone or in Combination With Oral Ruxolitinib Tablet or Oral Navitoclax Tablet in Adult Participants With Myelofibrosis
Myelofibrosis (MF)Unlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants With Adverse Events
Up to Approximately 1 year from start of study

An adverse event (AE) is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with the treatment. The investigator assesses the relationship of each event to the use of study drug.

Secondary Endpoints

Percentage Of Participants Who Achieve Spleen Volume Reduction Of 35% Or Greater (SVR35)
Up To Week 24
Maximum Observed Plasma Concentration (Cmax) of ABBV-744
Up To Week 12
Time To Cmax (Tmax) Of ABBV-744
Up To Week 12
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Segment A: ABBV-744 Dose Identification and OptimizationEXPERIMENTALParticipants who have been previously treated with Janus Kinase inhibitor(s) (JAKi) and stopped such therapy, will receive different dosing regimens and schedules of ABBV-744 to identify the safe dosing regimen and schedule.
Segment A: ABBV-744 MonotherapyEXPERIMENTALParticipants will receive the identified safe dosing regimen of ABBV-744 as monotherapy.
Segment B: Ruxolitinib + ABBV-744 "Add on" TherapyEXPERIMENTALParticipants whose disease (myelofibrosis) is inadequately controlled by ongoing ruxolitinib therapy will receive ruxolitinib and ABBV-744 as "add-on" therapy.
Segment C: ABBV-744 + NavitoclaxEXPERIMENTALParticipants who have previously been exposed to JAKi, and stopped such therapy, will receive ABBV-744 and navitoclax.
Segment D: ABBV-744 + RuxolitinibEXPERIMENTALParticipants who have never received JAKi will receive ABBV-744 and ruxolitinib.

Interventions

NameTypeDescription
ABBV-744DRUGTablet; Oral
NavitoclaxDRUGTablet; Oral
RuxolitinibDRUGTablet; Oral
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites43

Inclusion Criteria: * Laboratory values indicative of adequate bone marrow, renal, and hepatic function meeting protocol criteria. * Completion of the Myelofibrosis System Assessment Form (MFSAF) on at least 4 out of the 7 days prior to Day 1 with at least 2 symptoms with a score \>=3 or a total sc...

Countries:United StatesArgentinaAustraliaBrazilBulgariaChileHungaryIsraelItalyJapanSouth KoreaSpainSwedenTurkey (Türkiye)
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Frequently asked questions about ABBV-744

What is ABBV-744 used for in myelofibrosis?

ABBV-744 is an investigational small molecule being studied for the treatment of myelofibrosis (MF), a type of bone marrow cancer. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities. The drug is being evaluated for its safety and tolerability in adult participants with this condition.

What does ABBV-744 target?

ABBV-744 targets BET proteins, which are involved in regulating gene expression. By inhibiting BET proteins, the drug may interfere with pathways that drive the growth of cancer cells in myelofibrosis. This mechanism is being explored in early-stage clinical trials to understand its potential therapeutic effects.

Who is developing ABBV-744?

ABBV-744 is being developed by AbbVie Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol ABBV. The company is conducting clinical research to evaluate the drug's safety and efficacy in patients with myelofibrosis.

What phase is ABBV-744 in?

ABBV-744 is in Phase 1 clinical development. This early-stage trial is designed to assess the safety, tolerability, and pharmacokinetics of the drug in adult participants with myelofibrosis. The drug is investigational and has not yet received regulatory approval for any indication.

What clinical trials is ABBV-744 in?

ABBV-744 is being studied in a Phase 1 clinical trial with the identifier NCT04454658. This trial evaluates the safety and tolerability of oral ABBV-744 alone or in combination with ruxolitinib or navitoclax in adult participants with myelofibrosis. The study is active but not recruiting and has an enrollment of 21 participants.

Is ABBV-744 the same as ruxolitinib or navitoclax?

No, ABBV-744 is a distinct investigational drug being developed by AbbVie. Ruxolitinib and navitoclax are separate medications that are being studied in combination with ABBV-744 in clinical trials for myelofibrosis. ABBV-744 targets BET proteins, while ruxolitinib and navitoclax have different mechanisms of action.