Skip to content

A Study of PARP1 Selective Inhibitor, EIK1004 (IMP1707) in Participants With Advanced Solid Tumors.

A Phase 1/2, Open-label, Multicenter, Dose-escalation, and Dose-Optimization Study to Evaluate the Safety, Tolerability, and Activity of EIK1004 (IMP1707) as Monotherapy in Participants With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06907043
Acronym
EIK1004-001
Enrollment
130
Registered
2025-04-02
Start date
2025-04-30
Completion date
2028-12-31
Last updated
2025-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors

Keywords

EIK1004, IMP1707, Advanced/recurrent/metastatic pancreatic adenocarcinoma, Brain metastases, Advanced HER2-negative breast adenocarcinoma, Recurrent HER2-negative breast adenocarcinoma, metastatic HER2-negative breast adenocarcinoma

Brief summary

This study will evaluate the safety, tolerability, and preliminary efficacy of EIK1004 (IMP1707) in participants with recurrent advanced/metastatic breast cancer, ovarian cancer, metastatic castrate resistant prostate cancer (mCRPC) and pancreatic cancer with deleterious/suspected deleterious mutations of select homologous recombination repair (HRR) genes. Condition or disease Intervention/treatment Phase Advanced Solid Tumors Drug: EIK1004 (IMP1707) Phase 1/Phase 2

Detailed description

This study will evaluate the safety, tolerability and preliminary efficacy of EIK1004 (IMP1707) as monotherapy in patients with recurrent, advanced/metastatic solid tumors. The study consists of 2 parts: Dose escalation and dose optimization. In dose escalation (Part1), the study will identify the maximum tolerated dose (MTD) or maximum achievable dose (MAD) in solid tumor. In dose optimization (Part 2), the study will further evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and anti-tumor activity of select doses of EIK1004 (IMP1707)

Interventions

DRUGEIK1004-001 (IMP1707-001)

PARP1 selective inhibitor

Sponsors

Impact Therapeutics, Inc.
CollaboratorINDUSTRY
Eikon Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Groups of participants are assigned to receive interventions for dose escalation in up to 7 cohorts.

Eligibility

Sex/Gender
ALL
Age
18 Years to 89 Years
Healthy volunteers
No

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 prior platinum-based chemotherapy for advanced disease. mCRPC with ongoing ADT, must have received NHA and up to 1 prior line of taxane chemotherapy; Pancreatic cancer, must have prior 1L therapy * Age ≥ 18 years at the time of informed consent * Eastern Cooperative Oncology Group (ECOG) performance status ≤1 * Adequate organ function * Life expectancy ≥ 12 weeks * Should have evaluable disease as defined by RECIST1.1 and/or CA125 or PSA * Female subjects of childbearing potential and male subjects must agree to use an effective method of contraception from study entry up to 6 months after the last dose of EIK1004 (IMP1707) * Deleterious or suspected deleterious germline or somatic mutations of select HRR genes * Up to 1 prior line of PARP inhibitor containing treatment CNS Inclusion Criteria: * Untreated CNS metastases (measurable and/or non-measurable) not needing immediate local therapy. * Previously treated CNS metastases Key

Exclusion criteria

* Any investigational or approved anti-cancer therapies administered within 28 days/ before the first dose of EIK1004 (IMP1707) * Have received prior PARP1 selective inhibitors * Mean resting QTcF \> 470 ms or QTcF \< 340 ms * Infections \- An active hepatitis B/C infection * Any known predisposition to bleeding * Unable to swallow oral medications OR have malabsorption syndrome or any other uncontrolled gastrointestinal condition that might impair the bioavailability CNS

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants who experience a Dose-Limiting Toxicity (DLT)(Timeframe: up to 28 days)A DLT is defined as an event with toxicity including the type, severity, time of onset, time of resolution, and the probable association with study treatment that are not due to pre-existing conditions as defined by the Common Terminology Criteria for Adverse Events Version 5.0 (CTCAE 5.0). The number of participants who experience a DLT will be reported.
Number of participants with adverse events, treatment emergent adverse events or serious adverse events(Time Frame: 1 month post last dose of EIK1004 (IMP1707)Number of participants 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

Secondary

MeasureTime frameDescription
Pharmacokinetic parameters of EIK1004 (IMP1707)Through study completion, up to 3 yearsPeak plasma concentration (Cmax)
Objective Response (OR)Through study completion, up to 3 yearsDefined as participants who have a complete response \[CR\] or Participants who have a partial response \[PR\] by RECIST 1.1 (Solid tumor) and RANO-BM (brain metastasis), or CA-125 response per GCIG criteria (ovarian cancer), or PSA response per PCWG3 criteria.

Other

MeasureTime frameDescription
Pharmacodynamic changes due to EIK1004 (IMP1707)Through study completion, up to 3 yearsCytokines will be measured using an ELISA assay. The concentration of cytokines in plasma samples collected from patients is being measured and will be reported as a quantified value (e.g ng/mL). The fold change in plasma cytokines over baseline will be measured and the relative change compared to pre-dose/baseline numbers.

Countries

Australia, China, United States

Contacts

Primary ContactSunny Chaudry, MS
chaudrys@eikontx.com6319026200

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 19, 2026