FORX-428 for Solid Tumors
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial tests a new drug, FORX-428, to assess its safety and tolerability at different doses. It focuses on individuals with advanced solid tumors that have genetic changes, such as BRCA1/2 mutations, which can increase cancer risk. The goal is to identify the highest dose that people can tolerate without excessive side effects. Suitable candidates have advanced breast or ovarian cancer that has progressed despite previous treatment and possess specific genetic markers in their tumors. As a Phase 1 trial, this research aims to understand how the treatment works in people, offering participants the opportunity to be among the first to receive this new drug.
Will I have to stop taking my current medications?
The trial does not specify if you need to stop taking your current medications, but you must not have received any anti-cancer treatment or investigational agent within 14 days before starting the trial. It's best to discuss your current medications with the trial team.
Is there any evidence suggesting that FORX-428 is likely to be safe for humans?
Research has shown that FORX-428 was safe in lab studies, which tested the treatment on various solid tumors. The results were promising, indicating that FORX-428 was well-tolerated and effective against tumors. However, this trial marks the first time FORX-428 is being tested in humans. Researchers are closely monitoring patient responses to different doses to ensure safety. As this is an early-phase study, the primary goal is to determine a safe dose and identify any side effects.12345
Why do researchers think this study treatment might be promising?
Unlike the standard treatments for solid tumors, which often involve chemotherapy or radiation, FORX-428 stands out due to its novel mechanism of action. It specifically targets cancer cells with a unique pathway, potentially reducing harm to healthy cells and minimizing side effects. Researchers are excited about FORX-428 because it offers a more targeted approach, which could lead to improved outcomes and better quality of life for patients. Additionally, the ability to adjust doses in this study may help find the most effective and safe regimen for patients with different tumor types.
What evidence suggests that FORX-428 might be an effective treatment for solid tumors?
Research shows that FORX-428, the investigational drug in this trial, could effectively treat solid tumors. Early studies have found that this drug targets pathways that repair damaged DNA in cancer cells, making it potentially useful for tumors with BRCA1/2 mutations or other DNA repair issues. Initial data suggest that FORX-428 is likely safe and may not cause many side effects. Although human studies provide limited information, these results are promising for its potential use in advanced solid tumors. Participants in this trial will receive FORX-428 as part of a dose escalation/expansion cohort study to further evaluate its safety and effectiveness.12567
Are You a Good Fit for This Trial?
This trial is for adults over 18 with advanced solid tumors that have BRCA1/2 mutations or other DNA repair deficiencies. They must have tried at least one standard treatment and show measurable disease progression. Specific cohorts include those with breast or ovarian cancer who've had certain treatments.Inclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Dose Escalation
Participants receive escalating doses of FORX-428 to determine the maximum tolerated dose and Recommended Cohort Expansion Dose
Dose Expansion
Participants receive the Recommended Cohort Expansion Dose of FORX-428 to evaluate preliminary anti-tumor activity
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- FORX-428
Trial Overview
FORX-428, a PARG inhibitor, is being tested to see how safe it is and what the highest dose patients can take without serious side effects (MTD) in people with specific genetic alterations related to their tumor's ability to repair DNA damage.
How Is the Trial Designed?
1
Treatment groups
Experimental Treatment
FORX 428 dose levels planned in the study: Dose Level 1: 30 mg, daily; Dose Level 2: 60 mg, daily; Dose Level 3: 120 mg, daily; Dose Level 4: 200 mg, daily; Dose Level 5: 300 mg, daily; and Dose Level 6: 400 mg, daily. Following the selection of the Recommended Cohort Expansion Dose during Part 1 of the study, new patients will be included in 3 cohorts, with simultaneous parallel enrollment. Patients will be allowed to continue to receive FORX-428 monotherapy until disease progression or unacceptable toxicity. Part 2 will include approximately up to 29 evaluable patients in each expansion cohort as determined by the Simon's optimal 2-stage design. In Stage 1 of each cohort of Part 2, a total number of 10 patients will be accrued. If there are 1 or fewer responses by RECIST version 1.1 among these 10 patients, further enrollment in that cohort will be halted for futility. Otherwise, an additional 19 patients will be accrued per cohort in Stage 2 of Part 2.
Find a Clinic Near You
Who Is Running the Clinical Trial?
FoRx Therapeutics AG
Lead Sponsor
Citations
A Study of PARG Inhibitor FORX-428 in Patients With ...
The goal of this interventional study is to evaluate the safety and tolerability of escalating doses of FORX-48 as monotherapy in patients ...
2.
forxtherapeutics.com
forxtherapeutics.com/2025/08/forx-therapeutics-initiates-first-in-human-trial-with-novel-anti-cancer-drug-forx-428-targeting-dna-damage-responseFoRx Therapeutics Initiates First-in-Human Trial with Novel ...
Preclinical studies demonstrated FORX-428 had robust anti-tumor activity across multiple solid tumor types underscoring the novel compound's ...
FoRx Therapeutics Announces USD 50M Series A ...
In preclinical studies, FORX-428 demonstrated robust anti-tumor activity across multiple solid tumor types underscoring the novel compound's ...
4.
clinicaltrialvanguard.com
clinicaltrialvanguard.com/news/forx-therapeutics-launches-first-in-human-trial-of-novel-anti-cancer-drug-forx-428/Forx Therapeutics Launches First-in-Human Trial of Novel ...
Preclinical data suggest that FORX-428 exhibits strong anti-tumor activity and a favorable safety profile in various solid tumor models. FoRx ...
FORX-428 for Solid Tumors
This trial is for adults over 18 with advanced solid tumors that have BRCA1/2 mutations or other DNA repair deficiencies. They must have tried ...
6.
forxtherapeutics.com
forxtherapeutics.com/2025/12/forx-therapeutics-announces-usd-50m-series-a-financing-enabling-clinical-data-readout-for-potential-best-in-class-parg-inhibitorFoRx Therapeutics Announces USD 50M Series A ...
In preclinical studies, FORX-428 demonstrated robust anti-tumor activity across multiple solid tumor types underscoring the novel compound's ...
7.
trial.medpath.com
trial.medpath.com/clinical-trial/dbd746b9eeefaf92/nct07356453-parg-inhibitor-forx-428-advanced-solid-tumors-brca-ddr-deficienciesA Study of PARG Inhibitor FORX-428 in Patients ... - MedPath
The goal of this interventional study is to evaluate the safety and tolerability of escalating doses of FORX-48 as monotherapy in patients ...
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