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IMP1734

Phase 1

Advanced Solid Tumor | Small molecule | Oncology |Eikon Therapeutics, Inc.|Last Updated: Jun 15, 2026

Target and mechanism

Molecular targetPARP1
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment156

FDA Designations

No designations recorded

Clinical trial landscape

IMP1734 · 1 trial · 1 indication

Phase 1 1
NCT06253130A First-in-human Study of PARP1 Selective Inhibitor, IMP1734, in Participants With Advanced Solid TumorsAdvanced Solid Tumor
RECRUITING156 Analytics
PHASE1RECRUITING
A First-in-human Study of PARP1 Selective Inhibitor, IMP1734, in Participants With Advanced Solid Tumors
Advanced Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of subjects with adverse events, treatment emergent adverse events or serious adverse events
Consent to 30 + 7 days post last dose of IMP1734

Number of subjects reporting adverse events or serious adverse events which include any abnormal clinical events, laboratory assessments outside of normal clinical range, abnormal vital signs observed, and any abnormal ECG parameters

Maxim Tolerated Dose or Recommended Dose for Expansion
DLT period is from the first dose of the study drug until the last day of the first cycle

Number of patients that experience a DLT or any toxicity which occurs from the time of the first dose of study drug until the end of cycle 1, which is deemed unrelated to the disease.

Secondary Endpoints

Pharmacokinetic parameters of IMP1734
Through study completion, up to 3 years
Overall Response Rate
Through study completion, up to 3 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1EXPERIMENTALIMP1734 monotherapy; oral tablet(s) daily (except for the single-dose period). The maximum trial duration is 3 years after the last participant's first treatment in the trial.

Interventions

NameTypeDescription
IMP1734DRUGPARP1 selective inhibitor
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Eligibility Criteria

Age Range18 Years to 89 Years
SexALL
Healthy VolunteersNo
Study Sites57

Key Inclusion Criteria * Breast cancer; must have received at least one prior chemotherapy in neoadjuvant/adjuvant/metastatic setting, must have received hormonal therapy if HR+, * HGSOC or high grade endometrioid EOC, fallopian tube or primary peritoneal cancer; must have received at least one pri...

Countries:United StatesAustraliaCanadaChinaDenmarkFranceSouth KoreaSpain
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumor")

Recent Changes (Last 90 Days)

LOWJun 16, 2026NCT06253130lastUpdatePostDate: changed
LOWJun 16, 2026NCT06253130lastUpdatePostDate: changed
LOWJun 16, 2026NCT06253130lastUpdatePostDate: changed
LOWJun 16, 2026NCT06253130lastUpdatePostDate: changed

Frequently asked questions about IMP1734

What is IMP1734 used for?

IMP1734 is an investigational small molecule being developed for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development as a first-in-human study in participants with advanced solid tumors.

What does IMP1734 target?

IMP1734 targets PARP1, a protein involved in DNA repair. By selectively inhibiting PARP1, the drug aims to interfere with the repair mechanisms of cancer cells, potentially leading to their death. This mechanism is being studied in the context of advanced solid tumors.

Who is developing IMP1734?

IMP1734 is being developed by Eikon Therapeutics, Inc., a biopharmaceutical company. The company is conducting a Phase 1 clinical trial to evaluate the safety and efficacy of IMP1734 in patients with advanced solid tumors.

What phase is IMP1734 in?

IMP1734 is in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing Phase 1 trial is recruiting participants to assess the drug's safety, tolerability, and preliminary efficacy.

What clinical trials is IMP1734 in?

IMP1734 is being studied in a Phase 1 clinical trial with the identifier NCT06253130. This first-in-human study is recruiting 156 participants with advanced solid tumors across multiple countries, including the United States, Australia, Canada, China, Denmark, France, South Korea, and Spain.

Is IMP1734 the same as other PARP inhibitors?

IMP1734 is a selective PARP1 inhibitor, which distinguishes it from other PARP inhibitors that may target multiple PARP family members. Its selectivity for PARP1 is a key feature being investigated in the ongoing Phase 1 trial for advanced solid tumors.