A First-in-Human, JAB-8263 in Adult Patients With Advanced Tumors

Jacobio Pharmaceuticals

Status and phase: Enrolling; Phase 2; Phase 1

Conditions: AML; Malignant Tumor; MF; ESCC; CRPC; Ovarian Carcinoma; SCLC; NSCLC

Treatments: Drug: JAB-8263

Study type: Interventional

Funder types: Industry

Identifiers

NCT04686682

JAB-8263-1002

Details and patient eligibility

About

This is a Phase 1/2a, first-in-human, open-label study of JAB-8263, this study has two parts: solid tumor dose escalation and expansion study and hematology tumor dose escalation and expansion study.

These two parts will determine the maximum tolerated dose (MTD), recommended Phase 2 dose (RP2D) and assess the DLT of JAB-8263 in treatment with patients with advanced solid tumors and hematology tumors separately. 30 subjects each will be enrolled.

Full description

JAB-8263 is a small-molecule inhibitor of the highly conserved bromodomain pockets of the bromodomain and extraterminal (BET) proteins.

The objectives of this study are:

To determine the maximum-tolerated dose (MTD) and assess the dose-limiting toxicity (DLT) of JAB-8263 as a single agent to adult subjects with advanced malignant tumors. To assess the safety and tolerability of JAB-8263 To characterize the pharmacokinetic (PK) parameters and pharmacodynamics (PDc).To evaluate preliminary antitumor activity of JAB-8263

Enrollment: 152 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Subjects must meet all the following criteria in order to be included in the research study:

  1. Subject must be ≥18 years-of-age at the time of signature of the informed consent form (ICF).
  2. Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1.
  3. Subjects with histologically or cytologically confirmed advanced solid tumors which have progressed despite standard therapy(ies), or are intolerant to standard therapy(ies), or have a tumor for which no standard therapy(ies) exists.
  4. Subjects with recurrent/refractory AML according to WHO 2016
  5. Subjects with life expectancy ≥3 months.
  6. Patients with solid tumor must have at least one measurable lesion as defined by RECIST v1.1.
  7. Patients who have sufficient baseline organ function.

Exclusion criteria

1. History (≤3 years) of cancer that is histologically distinct from the cancer under study.
2. Known serious allergy to investigational drug or excipients
3. Active brain or spinal metastases
4. History of pericarditis or Grade ≥2 pericardial effusion
5. History of interstitial lung disease.
6. History of Grade ≥2 active infections within 2 weeks
7. Known human immunodeficiency virus (HIV) infection
8. Seropositive for hepatitis B virus (HBV)
9. Seropositive for hepatitis C virus (HCV), or HCV-RNA viral levels are not detectable.
10. Any severe and/or uncontrolled medical conditions
11. History of myocardial infarction, unstable angina pectoris, coronary artery bypass graft, or cerebrovascular accident
12. Impaired cardiac function or clinically significant cardiac diseases
13. QTcF >470 msec at screening
14. History of medically significant thromboembolic events or bleeding diathesis
15. Unresolved Grade >1 toxicity
16. History of malignant biliary obstruction
17. Pregnant or breast-feeding

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Sequential Assignment

Masking: None (Open label)

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152 participants in 2 patient groups

JAB-8263 Part1

Experimental group

Description:

Monotherapy, dose escalation

Treatment:

Drug: JAB-8263

Drug: JAB-8263

JAB-8263 Part 2

Experimental group

Description:

Monotherapy, dose expansion

Treatment:

Drug: JAB-8263

Drug: JAB-8263