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2X-121

Phase 2

Advanced Ovarian Cancer | Small molecule | Oncology |Allarity Therapeutics, Inc.|Trials Updated: Aug 28, 2025

2X-121 development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Mar 2019

2X-121 target and mechanism

Molecular targetTNKS2, TNKS, PARP2, PARP1
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment40

FDA Designations

No designations recorded

2X-121 clinical trials

2X-121 · 1 trial · 1 indication

Phase 2 1
NCT03878849Investigation of the Anti-tumor Effect of 2X-121 in Patients With Recurrent, Advanced Ovarian CancerAdvanced Ovarian Cancer
RECRUITING40 Analytics
PHASE2RECRUITING
Investigation of the Anti-tumor Effect of 2X-121 in Patients With Recurrent, Advanced Ovarian Cancer
Advanced Ovarian CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Evaluate the optimal dose of 2X-121 as single agent therapy
From enrollment up to approximately 2 years

To evaluate the optimal dose of 2X-121 as single agent therapy at 600 mg daily compared to 800 mg daily.

Secondary Endpoints

Clinical benefit rate (CBR)
From enrollment up to approximately 2 years
Progression free survival
From enrollment up to approximately 2 years
Overall survival
From enrollment up to approximately 2 years
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Drug: 2X-121 600 mgEXPERIMENTAL2X-121 will be administered daily as 600 mg (200 mg 2X-121 morning dose + 400 mg (2 x 200 mg) 2X-121 evening dose) hard gelatin capsules in a 28 days cycle.
Drug: 2X-121 800 mgEXPERIMENTAL2X-121 will be administered 800 mg (400 mg (2 x 200 mg) 2X-121 morning dose + 400 mg (2 x 200 mg) 2X-121 evening dose) hard gelatin capsules in a 28 days cycle.

Interventions

NameTypeDescription
2X-121DRUG2X-121 will be administered daily as 600 mg (200 mg 2X-121 morning dose + 400 mg (2 x 200 mg) 2X-121 evening dose) hard gelatin capsules in a 28 days cycle.
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: 1. Signed informed consent form. 2. Age 18 years or older. 3. Histologically or cytologically documented epithelial ovarian, fallopian tube, or primary peritoneal tumors, with high-grade serous or endometrioid, or predominantly serous/endometrioid histology (independent of BRCA1...

Countries:United States
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Competitive Landscape -Ovarian Cancer 244 trials (matched to "Advanced Ovarian Cancer")

Top 20 of 60 competitors

CompanyTickerTrialsLead PhaseDrugs
GSK plc Sponsored ADRGSK7PHASE3Niraparib, Dostarlimab, Mocertatug rezetecan
AstraZeneca PLCAZN21PHASE3Olaparib, Durvalumab, AZD5335, Torvutatug samrotecan, Datopotamab deruxtecan
Merck & Co., Inc.MRK16PHASE3Pembrolizumab, Sacituzumab tirumotecan, Raludotatug Deruxtecan, Patritumab Deruxtecan, MK-6255
Eli Lilly and CompanyLLY8PHASE3Sofetabart Mipitecan, Gemcitabine, Abemaciclib, LY4101174, LY3537982
AbbVie, Inc.ABBV14PHASE3Mirvetuximab soravtansine, Brimonidine eye, IMGN151, ABBV-400, ABBV-901
Bristol-Myers Squibb CompanyBMY4PHASE3Nivolumab, BMS-986340, Pumitamig, BMS-986463, BMS-986500
Genmab A/S Sponsored ADRGMAB7PHASE3Rina-S, GEN1047 is a bispecific antibody that induces T-cell mediated cytotoxicity of B7H4-positive tumor cells
Pfizer Inc.PFE4PHASE3Avelumab, Lorlatinib, Talazoparib, Axitinib, Utomilumab
Corcept Therapeutics Incorporated.CORT2PHASE3Relacorilant
Verastem, Inc.VSTM5PHASE3Avutometinib, Defactinib
Incyte CorporationINCY3PHASE3INCB123667
Zentalis Pharmaceuticals, Inc.ZNTL3PHASE3Azenosertib
Imunon, Inc.IMNN3PHASE3IMNN-001
Regeneron Pharmaceuticals, Inc.REGN5PHASE2Ubamatamab, Cemiplimab, Fianlimab, REGN10597, REGN5668
Novartis AG Sponsored ADRNVS5PHASE2Spartalizumab, Dabrafenib, trametinib, KFA115, Tulmimetostat
Genelux Corp.GNLX1PHASE3Olvimulogene nanivacirepvec
BeOne Medicines Ltd. Sponsored ADRONC3PHASE3Pamiparib, BG-C9074, BG-68501, BGB-43395
Xencor, Inc.XNCR3PHASE2vudalimab, XmAb541, XmAb808
Exelixis, Inc.EXEL2PHASE2Cabozantinib
Jazz Pharmaceuticals Public Limited CompanyJAZZ1PHASE2Zanidatamab
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Frequently asked questions about 2X-121

What is 2X-121 used for in advanced ovarian cancer?

2X-121 is an investigational small molecule being studied for the treatment of recurrent, advanced ovarian cancer. It is currently in Phase 2 clinical development and is not yet approved by regulatory authorities.

What does 2X-121 target?

2X-121 is an inhibitor that targets TNKS2, TNKS, PARP2, and PARP1. These are enzymes involved in DNA repair pathways, and inhibiting them is the proposed mechanism of action for the drug's anti-tumor effect.

Who makes 2X-121?

2X-121 is being developed by Allarity Therapeutics, Inc., a biopharmaceutical company. The company's stock is traded under the ticker symbol ALLR.

What phase is 2X-121 in?

2X-121 is in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA or other regulatory agencies for any use.

What clinical trials is 2X-121 in?

2X-121 is being evaluated in a Phase 2 clinical trial with the identifier NCT03878849. This trial is investigating the anti-tumor effect of 2X-121 in patients with recurrent, advanced ovarian cancer and is currently recruiting participants in the United States.