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ZEN003694

Phase 2

Ovarian Cancer | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Jun 18, 2026

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment33

FDA Designations

No designations recorded

Clinical trial landscape

ZEN003694 · 1 trial · 3 indications

Phase 2 1
NCT05071937ZEN003694 Combined With Talazoparib in Patients With Recurrent Ovarian CancerOvarian Cancer
RECRUITING33 Analytics
PHASE2RECRUITING
ZEN003694 Combined With Talazoparib in Patients With Recurrent Ovarian Cancer
Ovarian CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Objective Response
Up to 48 months

Confirmed complete response or partial response by RECIST 1.1. Per RECIST v1.1. Complete Response (CR): Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Partial Response (PR): At least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters.

Secondary Endpoints

Adverse events at least possibly related to treatment
Up to 48 months
Duration of Response
Up to 48 months
Progression-free survival (PFS)
Up to 6 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ZEN003694 + TalazoparibEXPERIMENTALZEN003694: 48.0 mg daily (oral) in 28-day cycles Talazoparib: 0.75 mg daily (oral) at the same time as ZEN003694

Interventions

NameTypeDescription
ZEN003694DRUGZEN003694 has shown promising activity in the treatment of solid tumors and hematologic (blood) cancers by reducing the multiplication of cancer cells.
TalazoparibDRUGTalazoparib kills cancer cells by inhibiting and trapping the enzyme PARP, which is known to be involved in the development of many types of cancers.
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Females age ≥ 18 years (at time of signing informed consent) 2. ECOG status 0 or 1 3. Pathologically documented ovarian, fallopian tube, or primary peritoneal carcinoma. 4. Prior therapy with PARPi either as maintenance or therapeutic settings. 5. All recurrent ovarian cancer...

Countries:United States
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Competitive Landscape -Ovarian Cancer 176 trials

Top 20 of 59 competitors

CompanyTickerTrialsLead PhaseDrugs
Merck & Co., Inc.MRK5PHASE3Pembrolizumab, Paclitaxel, Bevacizumab, Docetaxel
AstraZeneca PLCAZN19PHASE3Olaparib
GSK plc Sponsored ADRGSK4PHASE3Niraparib
Eli Lilly and CompanyLLY8PHASE3Sofetabart Mipitecan, Paclitaxel, Topotecan, Gemcitabine, Pegylated liposomal doxorubicin
AbbVie, Inc.ABBV13PHASE3Mirvetuximab soravtansine plus Bevacizumab, Bevacizumab
Bristol-Myers Squibb CompanyBMY4PHASE3Rucaparib, Nivolumab
Genmab A/S Sponsored ADRGMAB5PHASE3Rina-S, Paclitaxel, Topotecan, Pegylated liposomal doxorubicin, Gemcitabine
Pfizer Inc.PFE4PHASE3Avelumab, Lorlatanib, Talazoparib, Pemetrexed, Axitinib
Corcept Therapeutics Incorporated.CORT2PHASE3Nab-paclitaxel/m^2, Relacorilant once daily
Verastem, Inc.VSTM4PHASE3avutometinib, Defactinib, Pegylated liposomal doxorubicin, Paclitaxel, Letrozole
Zentalis Pharmaceuticals, Inc.ZNTL3PHASE3Azenosertib
Imunon, Inc.IMNN3PHASE3IMNN-001, Paclitaxel, Carboplatin, Olaparib, Niraparib
Incyte CorporationINCY2PHASE3INCB123667
Genelux Corp.GNLX1PHASE3olvimulogene nanivacirepvec, Platinum chemotherapy: carboplatin or cisplatin, Non-platinum chemotherapy: Physician's Choice of gemcitabine, taxane or pegylated liposomal doxorubicin, Bevacizumab
Regeneron Pharmaceuticals, Inc.REGN4PHASE2Ubamatamab, Bevacizumab, Cemiplimab, Fianlimab, PLD
Novartis AG Sponsored ADRNVS4PHASE2Dabrafenib, Trametinib
BeOne Medicines Ltd. Sponsored ADRONC2PHASE3Pamiparib
IQVIA Holdings IncIQV1PHASE3Oregovomab, Paclitaxel, Carboplatin
Xencor, Inc.XNCR3PHASE2vudalimab
Exelixis, Inc.EXEL2PHASE2Cabozantinib
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Frequently asked questions about ZEN003694

What is ZEN003694 used for in ovarian cancer?

ZEN003694 is an investigational small molecule being studied for the treatment of recurrent ovarian cancer, including peritoneal and fallopian tube cancers. It is currently in Phase 2 clinical development and is not yet approved by the FDA.

What does ZEN003694 target?

ZEN003694 is a small molecule that targets BET proteins, which are epigenetic regulators involved in gene expression. By inhibiting BET proteins, ZEN003694 aims to disrupt cancer cell growth and survival pathways relevant to ovarian cancer.

Who is developing ZEN003694?

ZEN003694 is being developed by Pfizer, Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The drug is currently in Phase 2 clinical trials for ovarian cancer.

What phase is ZEN003694 in?

ZEN003694 is in Phase 2 clinical development. It is an investigational drug, meaning it has not been approved by the FDA and is still being evaluated for safety and efficacy in patients with recurrent ovarian cancer.

What clinical trials is ZEN003694 in?

ZEN003694 is being studied in a Phase 2 clinical trial with the identifier NCT05071937. This trial is recruiting female patients aged 18 years and older with recurrent ovarian, peritoneal, or fallopian tube cancer, and is being conducted in the United States.

Is ZEN003694 the same as talazoparib?

No, ZEN003694 is not the same as talazoparib. ZEN003694 is a BET inhibitor, while talazoparib is a PARP inhibitor. In the ongoing clinical trial NCT05071937, ZEN003694 is being combined with talazoparib to evaluate the combination's effect in patients with recurrent ovarian cancer.