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ACR-368

Phase 2

Endometrial Adenocarcinoma | Small molecule | Oncology |Acrivon Therapeutics, Inc.|Trials Updated: Aug 21, 2026

ACR-368 development status

Highest phase Phase 2
Registered trials 13 across 6 sponsors since May 2010

ACR-368 target and mechanism

ModalitySmall molecule

Also known as prexasertib

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment350

FDA Designations

BREAKTHROUGH_THERAPYFAST_TRACK

ACR-368 clinical trials

ACR-368 · 1 trial · 1 indication

Phase 2 1
NCT05548296A Phase 2 Study of ACR-368 in Endometrial AdenocarcinomaEndometrial Adenocarcinoma
RECRUITING350 Analytics
PHASE2RECRUITING
A Phase 2 Study of ACR-368 in Endometrial Adenocarcinoma
Endometrial AdenocarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Arm 1: Anti-tumor activity of ACR-368 in Endometrial cancer subjects that are OncoSignature Positive.
Response will be assessed every 8 weeks from baseline through 2 years or death.

Assess Objective Response Rate (ORR) per RECIST v1.1 by computed tomography or magnetic resonance imaging.

Arm 2: Anti-tumor activity of ACR-368 with ULDG sensitization in Endometrial cancer subjects that are OncoSignature Negative.
Response will be assessed every 8 weeks from baseline through 2 years or death.

Objective Response Rate (ORR) per RECIST v1.1 by computed tomography or magnetic resonance imaging.

Arm 3: Anti-tumor activity of ACR-368 with ULDG sensitization in Endometrial cancer subjects (Serous All-Comers).
Response will be assessed every 8 weeks from baseline through 2 years or death.

Objective Response Rate (ORR) per RECIST v1.1 by computed tomography or magnetic resonance imaging.

Arm 4: Anti-tumor activity of ACR-368 with ULDG sensitization in Endometrial cancer subjects (Serous All-Comers).
Response will be assessed every 8 weeks from baseline through 2 years or death.

Objective Response Rate (ORR) per RECIST v1.1 by computed tomography or magnetic

Secondary Endpoints

Arm 1 and Arm 4: Adverse Events (AEs) for ACR-368
AEs will be assessed from baseline through 2 years or death.
Arm 2 and Arm 3: Adverse Events (AEs) for ACR-368 with ULDG sensitization
AEs will be assessed from baseline through 2 years or death.
All Arms: Limited pharmacokinetic (PK) testing.
Dose of ACR-368 at day 1 and day 15 of first cycle.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
OncoSignature Positive TumorsEXPERIMENTALARM 1: Participants with OncoSignature Positive Tumors will enter a Phase 2 Simon 2-Stage Study that will assess the efficacy of ACR-368 as monotherapy.
OncoSignature Negative TumorsEXPERIMENTALArm 2: Participants with OncoSignature Negative Tumors will receive ACR-368 with ULDG sensitization. The Phase 2 Study will assess the efficacy and safety of ACR-368 with ULDG sensitization.
OncoSignature Unselected (Serous All-Comers) ACR-368 with ULDGEXPERIMENTALArm 3: Participants who are OncoSignature Unselected will receive ACR-368 with ULDG sensitization. The Phase 2 Study will assess the efficacy and safety of ACR-368 with ULDG sensitization.
OncoSignature Unselected (Serous All-Comers) ACR-368EXPERIMENTALArm 4: Participants who are OncoSignature Unselected will receive ACR-368. The Phase 2 Study will assess the efficacy and safety of ACR-368.

Interventions

NameTypeDescription
ACR-368DRUGACR-368 is an experimental drug
GemcitabineDRUGSensitization of tumor cells is provided through administration of ULDG
OncoSignatureDIAGNOSTIC_TESTProspective prediction of drug sensitivity based on a pretreatment tumor biopsy
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites90

Inclusion Criteria: General 1. Participant must be able to give signed, written informed consent. 2. Participant must have histologically documented, high-grade endometrial cancer. Arms 1 and 2 1. All high-grade epithelial endometrial histological subtypes are eligible including: endometrioi...

Countries:United StatesFranceGermanyItalySpain
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Recent Changes (Last 90 Days)

LOWAug 21, 2026NCT05548296lastUpdatePostDate: changed
LOWAug 21, 2026NCT05548296lastUpdatePostDate: changed

Frequently asked questions about ACR-368

What is ACR-368 used for?

ACR-368 is an investigational small molecule being studied for the treatment of endometrial adenocarcinoma, a type of endometrial cancer. It is being developed by Acrivon Therapeutics, Inc. and is currently in Phase 2 clinical development. It has not been approved by the FDA for any indication.

Who is developing ACR-368?

ACR-368 is being developed by Acrivon Therapeutics, Inc., which trades on the Nasdaq under the ticker ACRV. The company is running a Phase 2 study of the drug in endometrial adenocarcinoma across sites in the United States, France, Germany, Italy, and Spain.

What phase is ACR-368 in?

ACR-368 is in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA. The Phase 2 study is currently recruiting participants and has an planned enrollment of 350 patients.

What clinical trials is ACR-368 in?

ACR-368 is being evaluated in a single Phase 2 study, NCT05548296, titled A Phase 2 Study of ACR-368 in Endometrial Adenocarcinoma. The trial is currently recruiting, with an planned enrollment of 350 female participants aged 18 years and older across the United States, France, Germany, Italy, and Spain.

Does ACR-368 have any FDA designations?

Yes. ACR-368 has received both Breakthrough Therapy and Fast Track designations from the FDA for its development in endometrial adenocarcinoma. These designations are intended to expedite the development and review of drugs that treat serious conditions and fill an unmet medical need.

Who can enroll in the ACR-368 clinical trial?

The Phase 2 trial NCT05548296 is enrolling female participants aged 18 years and older with endometrial adenocarcinoma. It is a controlled study that is not randomized and not double-blind, and it does not enroll healthy volunteers. The study is recruiting at sites across the United States and several European countries.