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ABBV-CLS-616

Phase 1

Healthy Volunteer | Small molecule | Other |AbbVie Inc.|Last Updated: Jan 15, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment110

FDA Designations

No designations recorded

Clinical trial landscape

ABBV-CLS-616 · 1 trial · 1 indication

Phase 1 1
NCT06698926A Study to Assess the Safety, Tolerability, and Interactions of ABBV-CLS-616 Oral Tablets in Healthy Adult ParticipantsHealthy Volunteer
COMPLETED110 Analytics
PHASE1COMPLETED
A Study to Assess the Safety, Tolerability, and Interactions of ABBV-CLS-616 Oral Tablets in Healthy Adult Participants
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Study Endpoints

Primary Endpoints

Number of Participants with Adverse Events (AEs)
Up to approximately 90 days

An AE is defined as any untoward medical occurrence in a patient or clinical investigation in which a participant is administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment.

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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Part 1: Group 1EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose A or placebo after fasting on Day 1 and will be confined for 19 days.
Part 1: Group 2EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose B or placebo after fasting on Day 1 and will be confined for 19 days.
Part 1: Group 3EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose C or placebo after fasting on Day 1 and will be confined for 8 days.
Part 1: Group 4EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose D or placebo after fasting on Day 1 and will be confined for 8 days.
Part 1: Group 5EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose E or placebo after fasting on Day 1 and will be confined for 8 days.
Part 1: Group 6EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose F or placebo after fasting on Day 1 and will be confined for 8 days.
Part 2: Group 7EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose G or placebo daily, starting on Day 1 for 7 days and will be confined for 14 days.
Part 2: Group 8EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose H or placebo daily, starting on Day 1 for 7 days and will be confined for 14 days.
Part 2: Group 9EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose D or placebo daily, starting on Day 1 for 7 days and will be confined for 14 days.
Part 2: Group 10EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose E or placebo daily, starting on Day 1 for 7 days and will be confined for 14 days.
Part 2: Group 11EXPERIMENTALParticipants will receive either ABBV-CLS-616 Dose F or placebo daily, starting on Day 1 for 7 days and will be confined for 14 days.
Part 3: Sequence 1EXPERIMENTALIn Period 1, participants will receive ABBV-CLS-616 Dose C on Day 1 after fasting and will be confined for 7 days. In Period 2, participants will receive ABBV-CLS-616 Dose C on Day 1, without fasting and will be confined for 8 days.
Part 3: Sequence 2EXPERIMENTALIn Period 1, participants will receive ABBV-CLS-616 Dose C on Day 1 without fasting and will be confined for 7 days. In Period 2, participants will receive ABBV-CLS-616 Dose C on Day 1, after fasting and will be confined for 8 days.
Part 4: ItraconazoleEXPERIMENTALIn Period 1, participants will receive ABBV-CLS-616 Dose C on Day 1, after fasting and will be confined for 7 days. In Period 2, participants will receive Itraconazole daily for 10 days without fasting and will receive ABBV-CLS-616 Dose C on Day 4 after fasting. Participants will be confined for 11 days.

Interventions

NameTypeDescription
ABBV-CLS-616DRUGOral Tablet
PlaceboDRUGOral Tablet
ItraconazoleDRUGOral Capsule
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Part 2 only: Participant must have normal platelet count at screening and upon initial confinement. * Part 2 only: Participant must not have known or suspected coagulopathy, or prothrombin time (PT)/activated partial thromboplastin time (aPTT)/international normalized ratio (I...

Countries:United States
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Frequently asked questions about ABBV-CLS-616

What is ABBV-CLS-616 used for?

ABBV-CLS-616 is an investigational small molecule being studied in healthy volunteers. It is currently in Phase 1 clinical development to assess its safety, tolerability, and interactions when administered as oral tablets. The drug is not approved for any indication and remains in early-stage clinical testing.

Who makes ABBV-CLS-616?

ABBV-CLS-616 is being developed by AbbVie Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker ABBV. The company is conducting clinical trials to evaluate the drug's safety and tolerability in healthy adult participants.

What phase is ABBV-CLS-616 in?

ABBV-CLS-616 is in Phase 1 clinical development. A Phase 1 study has been completed, involving 110 healthy adult participants in the United States. The drug is investigational and has not been approved by regulatory authorities.

What clinical trials is ABBV-CLS-616 in?

ABBV-CLS-616 has one completed clinical trial, registered as NCT06698926. This Phase 1 study assessed the safety, tolerability, and interactions of ABBV-CLS-616 oral tablets in healthy adult participants. The trial was randomized, double-blind, and controlled, with 110 participants enrolled in the United States.

Is ABBV-CLS-616 FDA approved?

ABBV-CLS-616 is not FDA approved. It is an investigational drug currently in Phase 1 clinical development. A completed Phase 1 trial evaluated its safety and tolerability in healthy volunteers, but the drug has not yet progressed through the later stages of clinical testing required for regulatory approval.