A Phase I/II Study of XZP-3287 in Metastasis Solid Tumors

NCT04539496 | Active Not Recruiting Phase 1 DMC

• 1 other identifier: XZP-3287-1001
• Study Type: interventional
• Target: 402
• Locations: 1 country
• Sites: 1

Brief Summary

This study includes single agent/combination dose exploration study and the phase II study. The primary purpose of the dose exploration study is to determine the maximum tolerated dose(MTD)/recommended phase II dose(RP2D) of XZP-3287 and assess its safety and preliminary efficacy in solid tumor patients. The phase II study aims to explore the efficacy and safety profiles of XZP-3287 as a single- agent in hormone receptor(HR) positive, human epidermal growth factor receptor 2(HER2) negative advanced breast cancer.

Conditions

Metastasis Solid Tumors; Advanced Breast Cancer

Outcome Measures

Primary Outcomes (2)

• Single agent and combination dose exploration study：AE evaluation

  AEs as characterized by frequency and severity (as graded by National Cancer Institute Common Terminology Criteria for Adverse Events \[NCI CTCAE\] version 4.03 for single agent dose exploration study and CTCAE 5.0 for combination exploration study)

  Up to 30 days after the end of treatment

• The phase II study：Objective response rate (ORR) assessed by Independent Review Committee (IRC)

  ORR is the percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR) as defined by RECIST v1.1.

  From baseline to the date of first documentation of progression or death , whichever came first, assessed approximately up to 2 years after the last entered participant

Secondary Outcomes (8)

• Progression free survival (PFS)

  From baseline to the date of first documentation of progression or death, whichever came first, assessed approximately up to 2 years after the last entered participant

• Overall survival (OS)

  From baseline to the death from any cause, assessed approximately up to 2 years after the last entered participant

• Duration of response (DoR)

  From baseline to the date of first documentation of progression or death, whichever came first, assessed approximately up to 2 years after the last entered participant

• Disease control rate (DCR)

  From baseline to the date of first documentation of progression or death, whichever came first, assessed approximately up to 2 years after the last entered participant

• Clinical benefit rate (CBR)

  From baseline to the date of first documentation of progression or death, whichever came first, assessed approximately up to 2 years after the last entered participant

Study Arms (3)

Dose Escalation and Expansion Study

EXPERIMENTAL

To determine the MTD and RP2D of XZP-3287

Drug: XZP-3287

Combination Therapy Study

EXPERIMENTAL

To determine the RP2D of XZP-3287 combined with endocrine therapy

Drug: XZP-3287;Letrozole;Anastrozole;Fulvestrant

A Phase 2 Study of Single-Agent XZP-3287 in Patients After Failure of Multi-Line Therapy

EXPERIMENTAL

To determine the efficacy and safety profiles of XZP-3287 as a single- agent in hormone receptor (HR) positive, human epidermal growth factor receptor 2 (HER2) negative advanced breast cancer

Drug: XZP-3287

Interventions

XZP-3287 DRUG

* 20-560 mg QD, oral * 240-480 mg BID, oral

Dose Escalation and Expansion Study

XZP-3287;Letrozole;Anastrozole;Fulvestrant DRUG

XZP-3287: 360 mg BID, oral; Letrozole: 2.5 mg QD, oral; Anastrozole: 1 mg QD, oral; Fulvestrant: 500 mg intramuscular injection on C1D1, C1D15, the first day of each subsequent cycle (28 days a cycle)

Combination Therapy Study

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Single agent and combination dose exploration study：Patient is an adult male/female 18\~70 years old; the phase II study：Patient is an adult male/female ≥ 18 years old;
• Single agent dose escalation study ：Patients with a histologically or cytologically confirmed diagnosis of a solid tumor for which Standard treatment failure or no further effective standard treatment is available.
• Combination dose exploration study：Patients with locally advanced or metastatic breast cancer with hormone receptor positive (HR+) and her2-negative (HER2-) were not eligible for surgical resection or radiotherapy for the purpose of cure, and had no clinical indications for chemotherapy, and received endocrine therapy ≤1 line.
• The phase II study: Locally advanced or metastatic breast cancer diagnosed histologically or cytologically not suitable for surgery or radical radiotherapy; HR+ and HER2- ; have locally advanced disease not amenable to curative treatment by surgery or metastatic disease; progress after previous endocrine therapy; at least 1 chemotherapy regimen in the previous adjuvant or metastasis contains paclitaxel; there should be at least 2 prior chemotherapy regimens;
• At least one measurable lesion (based on RECIST v1.1);
• Patient has an Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1;
• Have recovered from the acute effects of therapy (until the toxicity resolves to either baseline or Grade 1) except for residual alopecia;
• Adequate organ and marrow function;
• The life expectancy of the patient was determined by the investigator to be ≥12 weeks;
• Fertile male or female patients must agree to use an effective contraceptive method during the study period and for three months after the last study medication;
• Patient has signed informed consent before any trial related activities.

You may not qualify if:

• Single agent and combination dose exploration study：Patients with known uncontrolled or symptomatic CNS metastases; The phase II study：Have central nervous system (CNS) metastasis, or Have visceral crisis, or Inflammatory breast cancer.
• Have received an autologous or allogeneic stem-cell transplant.
• Patient has impairment of gastrointestinal (GI) function or GI disease.
• Single agent and combination dose exploration study：Any other malignancy was diagnosed within 3 years prior to enrollment, except for basal cell carcinoma, squamous cell carcinoma, or carcinoma in situ of the cervix, which is adequately treated and the disease is stable.
• The phase II study：Have a history of any other cancer (except nonmelanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission with no therapy for a minimum of 3 years.
• Subject has impaired cardiac function or heart disease of clinical significance.
• Cerebrovascular accidents within 6 months before enrollment, including a history of transient ischemic attack or stroke.
• Major surgery or surgical treatment due to any cause occurred within 4 weeks prior to enrollment.
• Presence of any serious and/or uncontrolled disease in the opinion of the investigator that may interfere with the study assessment.
• Uncontrollable pleural effusion, peritoneal effusion, pericardial effusion in the 4 weeks before the first administration (except for a small amount of effusion detected by imaging examination).
• A prior history of definite neurological or psychiatric disorders, including epilepsy or dementia.
• Chronic active HBV, HCV or HIV diseases.
• Patient who received any CDK4/6 inhibitor or patients who plan surgery, or the investigator determines that surgery or radical radiation therapy is required.
• Participation in a prior treatment of chemotherapy, radiotherapy, endocrinotherapy, targeted therapy, immunotherapy and any investigational study within 14 days prior to enrollment.
• Bone marrow suppression therapy, such as GCS-F, EPO, or blood transfusion, was administered within 14 days prior to enrollment.

Sponsors & Collaborators

• Sihuan Pharmaceutical Holdings Group Ltd.: lead

Study Sites (1)

Cancer Hospital Chinese Academy of Medical Sciences

Beijing, Beijing Municipality, 100000, China

Location

Related Publications (2)

• Wang J, Sun T, Tong Z, Hu X, Li W, Yan M, Liu Y, Ouyang Q, Liu X, Fang J, Li H, Li H, Chen W, Gong C, Teng Y, Xu L, Duan X, Liu M, Meng Y, Liu F, Wang L, Xu B. Safety and tolerability of bireociclib for the treatment of advanced solid tumors as monotherapy and in combination with endocrine therapy: a multicenter, open-label, phase 1 clinical trial. BMC Med. 2025 Oct 8;23(1):546. doi: 10.1186/s12916-025-04364-9.

  PMID: 41063198 DERIVED

• Wang J, Zhang Q, Sun T, Li H, Cheng Y, Tong Z, Li H, Li W, Wang J, Teng Y, Wu X, Cheng J, Chen Z, Zhu Z, Wang L, Liu M, Duan X, Xu L, Xu B. An open-label, single-arm, multicenter, phase II trial of bireociclib as monotherapy for heavily pretreated HR-positive, HER2-negative advanced breast cancer patients: BRIGHT-1 trial. Cancer Commun (Lond). 2025 Jun;45(6):640-653. doi: 10.1002/cac2.70009. Epub 2025 Feb 27.

  PMID: 40013319 DERIVED

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: August 26, 2020
• First Posted: September 7, 2020
• Study Start: May 22, 2018
• Primary Completion: July 31, 2023
• Study Completion: December 31, 2025
• Last Updated: September 19, 2024

Record last verified: 2024-09

Locations

CN (1)