Trial to Evaluate the Safety & Tolerability of JBZ-001 in Pts With Advanced Solid and Hematological Malignancies
A Phase 1, Open-label, Dose-escalation and Expansion, First-in-human Trial to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of JBZ-001, a Dihydroorotate Dehydrogenase (DHODH) Inhibitor, in Patients With Advanced Solid and Hematological Malignancies
1 other identifier
interventional
25
1 country
2
Brief Summary
This will be a phase 1, open-label, dose-escalation and expansion, FIH trial to evaluate the safety, tolerability, PK, PD, and preliminary efficacy of JBZ-001, a DHODH inhibitor, in patients with refractory solid and hematological malignancies. The study design includes two independent parts: dose escalation in solid tumors and NHL (Part 1), and up to four indication expansions in selected solid tumor types and NHL (Part 2). The dose escalation will enroll patients with solid tumors and NHL following a standard "3+3" design enrolling a minimum of 3 and up to 6 patients per dose level.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Mar 2025
Typical duration for phase_1
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 7, 2024
CompletedFirst Posted
Study publicly available on registry
January 30, 2025
CompletedStudy Start
First participant enrolled
March 17, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 15, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 15, 2028
April 24, 2026
April 1, 2026
1.9 years
November 7, 2024
April 21, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Occurrence of all adverse events
Evaluation of adverse events
28 Days
Maximum tolerated dose (MTD)
MTD will be defined as the maximum dose level at which no more than 1 of 3 participants experience a dose-limiting toxicity (DLT) within the first 33days of multiple dosing.
28 days
Phase II dose (RP2D)
The number and proportion of patients experiencing at least 1 dose-limiting toxicity (DLT) will be used as the primary measure to evaluate the RP2D
28 days
Secondary Outcomes (9)
Maximum plasma concentration (Cmax)
28 days
Time to Cmax (tmax)
28 days
Area under the serum concentration-time curve (AUC[0-t]
28 days
Area under the serum concentration-infinity curve AUC[0-infinity]
28 days
Apparent terminal phase half-life (t1/2)
28 days
- +4 more secondary outcomes
Study Arms (6)
Experimental Cohort 1
EXPERIMENTAL1\~6 subjects in this cohort will receive 1 dose 5 mg orally.
Experimental Cohort 2
EXPERIMENTAL1\~6 subjects in this cohort will receive 1 dose 10 mg orally daily
Experimental Cohort 3
EXPERIMENTAL1\~6 subjects in this cohort will receive 1 dose of 17.5 mg orally daily
Experimental Cohort 4
EXPERIMENTAL1\~6 subjects in this cohort will receive 1 dose of 25 mg orally daily
Experimental Cohort 5
EXPERIMENTAL1\~6 subjects in this cohort will receive 1 dose of 32.5 mg orally daily
Experimental Cohort 6
EXPERIMENTALArm Description: 1\~6 subjects in this cohort will receive 1 dose 45mg
Interventions
JBZ-001 Oral Capsule
Eligibility Criteria
You may qualify if:
- Participant must be ≥18 years of age, at the time of signing the informed consent.
- Dose escalation and expansion:
- Solid tumors: have a histologically confirmed relapsed or refractory advanced solid tumor for which no standard approved treatment is available, or is ineligible for, or did not tolerate standard approved treatment.
- NHL: have a histologically confirmed relapsed or refractory diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL) or Mantle cell lymphoma (MCL) for which no standard approved treatment is available, or is ineligible for, or did not tolerate standard approved treatment.
- Measurable/evaluable disease or documented relapse, respectively, relevant for tumor type as follows:
- Solid tumors: per Response evaluation criteria in solid tumors (RECIST) 1.1 with at least one target lesion
- NHL: Measurable disease defined as ≥1 measurable nodal lesion (long axis \>1.5 cm and short axis \>1.0 cm) or ≥1 measurable extra-nodal lesion (long axis \>1.0 cm) on computed tomography (CT) scan or magnetic resonance imaging (MRI)
- Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2.
- All previous anti-cancer therapy-related AEs should have resolved to grade 1 or baseline value with the exception of alopecia and stable, treated endocrine toxicities of immune checkpoint inhibitors (ICIs) Note: Subjects with irreversible toxicity that in the opinion of the treating physician is not reasonably expected to be exacerbated by the investigational product may be included (e.g., hearing loss, hormone deficiency requiring replacement therapy) -
You may not qualify if:
- Known hypersensitivity to JBZ-001 or any of its excipients
- Corrected interval between Q and T wave on ECG (QTc) ≥ 470 msec using Fredericia's formula.
- Has significant and symptomatic cardiovascular disease (such as congestive heart failure New York Heart Association class III or higher, myocardial infarction, cerebrovascular disease, unstable angina, unstable arrhythmia) within the 3 months prior to first dose of JBZ-001.
- Has another malignant disease requiring treatment, with the exception of curatively treated malignancies or malignancies with very low potential for recurrence or progression.
- For solid tumor subjects:
- Symptomatic ascites or pleural effusion. A subject who is clinically stable for 2 weeks following treatment for these conditions (including therapeutic thoraco- or paracentesis) is eligible.
- Known active central nervous system (CNS) metastases and/or carcinomatous meningitis. Subjects with previously treated brain metastases may participate provided they are clinically stable for at least 2 weeks prior to study entry, as long as the dose is ≤ 4 mg of dexamethasone or equivalent per day
- Known active HIV infection on antiretroviral therapy. Note: Testing is not required for eligibility.
- Known active infection with hepatitis B or hepatitis C. Note: Testing is not required for eligibility.
- Any other active infection requiring systemic therapy.
- Major surgery (excluding procedures to stabilize the vertebrae) within 4 weeks or minor surgery within 2 weeks prior to first dose of JBZ-001.
- Has a history of GI surgery or other procedures that might interfere with the absorption or swallowing of the study drug.
- History or clinical evidence of any medical condition which the investigator judges as likely to interfere with the results of the study, poses an additional risk in participating, or makes the subject unlikely to comply with the study-related visits and assessments.
- Female participants: pregnant or breastfeeding.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
The Ohio State University
Columbus, Ohio, 43210, United States
START Mountain Region
West Valley City, Utah, 84119, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Zuzana Jirakova, MD PhD
Jabez Biosciences, Inc
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 7, 2024
First Posted
January 30, 2025
Study Start
March 17, 2025
Primary Completion (Estimated)
February 15, 2027
Study Completion (Estimated)
February 15, 2028
Last Updated
April 24, 2026
Record last verified: 2026-04