A Phase 2 Study of HX301 in Patients with High-grade Giloma

NCT06703255 | Recruiting Phase 1

• 1 other identifier: HX301-II-01
• Study Type: interventional
• Target: 72
• Locations: 1 country
• Sites: 1

Brief Summary

The study will include a dose-escalation and dose-expansion component to establish the recommended Phase 2 dose (RP2D) for HX301 in combination with Temozolomide and to evaluate the preliminary antitumor activity of HX301.HX301 is an investigational drug that has not yet been approved by the Food and Drug Administration (FDA) or any other regulatory authorities for commercial purposes.

Conditions

Glioma

Outcome Measures

Primary Outcomes (6)

• Part I: Number of participants experiencing Adverse Events (AEs)

  An AE is any untoward medical occurence in a patient or subject, temporally associated with the use of study treatment, whether or not considered related to the study treatment.

  All AEs up to 28(±7)days after the last dose of study treatment

• Part I: Identify the recommended phase IIa dose (RP2D) of HX301 in patients with high-grade glioma;

  RP2D is Recommended Phase II Dose.

  24 Cycles of 28 days each.

• Part II (HX301 monotherapy safety run-in period) : Number of participants experiencing Adverse Events (AEs)

  An AE is any untoward medical occurence in a patient or subject, temporally associated with the use of study treatment, whether or not considered related to the study treatment.

  All AEs up to 28(±7)days after the last dose of study treatment

• Part II (HX301 monotherapy safety run-in period) : Identify the recommended phase IIa dose (RP2D) of HX301 combination with TMZ in patients with high-grade glioma;

  RP2D is Recommended Phase II Dose.

  24 Cycles of 28 days each.

• Part II (HX301 in combination with temozolomide) : Progression-free survival（PFS） per Investigator assessed using RANO criteria.

  24 Cycles of 28 days each.

• Part II (HX301 in combination with temozolomide) :Objective response rate（ORR） per Investigator assessed using RANO criteria.

  24 Cycles of 28 days each.

Secondary Outcomes (3)

• Part I : Objective response rate（ORR） per Investigator assessed using RANO criteria.

  24 Cycles of 28 days each.

• Part II (HX301 monotherapy safety run-in period) : Objective response rate（ORR） per Investigator assessed using RANO criteria.

  24 Cycles of 28 days each.

• Part II (HX301 in combination with temozolomide) :Overall survival（OS） per Investigator assessed using RANO criteria.

  24 Cycles of 28 days each.

Study Arms (1)

Patients received HX301/+Temozolomide treatment at assigned dose level on a 4 weeks basis

EXPERIMENTAL

Drug: HX301+/Temozolomide

Interventions

HX301+/Temozolomide DRUG

Part I: It is planned to firstly explore a dose of 160 mg and enroll approximately 3-6 subjects to receive HX301 monotherapy until disease progression, intolerable toxicity, or other reasons for stopping treatment for up to 24 cycles of 28 days each. Safety evaluation was performed using the traditional "3 + 3" rule, and the DLT observation period was 28 days (C1D1 \~ C1D28). If 160 mg was not tolerated, it was reduced to 120 mg for exploration. Part II: Combination therapy phase: HX301 will be administered in combination with temozolomide approximately 4-6 weeks after completion of chemoradiotherapy. The TMZ dose will follow the first cycle: 150 mg/m 2 qd D1-D5, starting with the second cycle, and if the criteria for TMZ dose increase are met, TMZ will be administered as 200 mg/m 2 qd D1-D5 every 2 8 days for up to 12 cycles. Monotherapy maintain period: Following the end of temozolomide treatment, HX301 monotherapy will be continued for a maximum of 12 cycles of 28 days each.

Patients received HX301/+Temozolomide treatment at assigned dose level on a 4 weeks basis

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Signed informed consent form;
• Age ≥ 18 years;
• Expected survival ≥ 12 weeks;
• Part I:1) Histologically confirmed high-grade glioma (WHO classification grade III or IV); 2) At least one prior temozolomide treatment; 3) Patients with recurrent or progressive clinically assessed disease according to RANO criteria with evaluable lesions; Part II: Patients with histological or cytological diagnosis of glioblastoma according to World Health Organization (WHO) classification (2021) who received surgical treatment for the first time and standard concurrent chemoradiotherapy and who have not received any other prior treatment;
• Part II: Subjects must undergo partial or complete surgical resection, and available results of postoperative brain contrast-enhanced MRI were documented as follows: 1) complete resection without gadolinium enhancement ; or 2) complete resection (80% or more);
• Part II: Subjects must complete initial radiotherapy combined with TMZ (concurrent chemoradiotherapy) for glioblastoma according to the Stupp regimen (Stupp 2005) (total radiation dose 5 4-60 G y);
• Part I: If radiotherapy has been performed, the completion of radiotherapy shall last for 3 months, or there shall be tumor progression or histopathological confirmation of progression in the original radiation field within 3 months; Part II: there shall be no evidence of disease progression after chemoradiotherapy, except for pseudo progression;
• Dexamethasone was administered at ≤ 5 mg/day at study entry.Corticosteroids should be reduced as far as possible to the smallest dose necessary to control neurological symptoms before receiving study treatment;
• Karnofsky performance status (KPS) ≥ 70 within 1 4days prior to receiving study treatment ;
• Willing and able to comply with the protocol.

You may not qualify if:

• Part II: Patients with recurrent glioblastoma;
• Distant metastasis involving brainstem and meninges or extension of lesions to spinal cord;
• Human immunodeficiency virus (HIV) antibody positive, syphilis antibody (Anti-TP) positive, hepatitis C virus (HCV) antibody positive and HCV RNA positive, hepatitis B virus surface antigen (HBsAg) positive and HBV DNA positive (HBsAg positive requires further detection of HBV DNA, HBV DNA ≥ 200 IU/ml, or ≥ 10 3 copies/ml);
• Hypersensitivity to temozolomide and/or components of HX301;
• At risk for torsades de pointes (TdP): patients with a marked prolongation of the QT/QTc interval calculated using the Fredericia QT correction formula at baseline (eg, repeated demonstration of QTc interval \> 470 ms), or a history of other TdP risk factors (eg, heart failure, hypokalemia, family history of long QT syndrome), or patients who are currently taking medications that prolong the QT/QTc interval;
• Grade ≥ 2 diarrhea at baseline;
• Participation in another study involving an investigational drug within 30 days prior to the first dose of study drug;

Sponsors & Collaborators

• Hangzhou Hanx Biopharmaceuticals, Ltd.: lead

Study Sites (1)

Beijing Tiantan Hospital Capital Medical University

Beijing, Beijing Municipality, 100083, China

RECRUITING

MeSH Terms

Conditions

Glioma

Condition Hierarchy (Ancestors)

Neoplasms, Neuroepithelial; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms by Histologic Type; Neoplasms; Neoplasms, Glandular and Epithelial; Neoplasms, Nerve Tissue

Central Study Contacts

Shuang Liu

CONTACT

+8618601689862; shuang.liu@hanxbio.com

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 21, 2024
• First Posted: November 25, 2024
• Study Start: January 8, 2025
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): December 31, 2028
• Last Updated: January 15, 2025

Record last verified: 2025-01

Locations

CN (1)