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Clinical Study on Adjuvant Therapy of TQB3616 Combined With Endocrine Therapy Compared With Placebo Combined With Endocrine Therapy in Patients With Breast Cancer

Randomized, Double-blind, Parallel-controlled Phase III Trial to Evaluate the Efficacy and Safety of TQB3616 Combined With Endocrine Therapy Versus Placebo Combined With Endocrine Therapy in Hormone Receptors (HR)-Positive and Human Epidermal GrowthFactor Receptor-2 (HER2) -Negative Breast Cancer Adjuvant Therapy

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05780567
Enrollment
1946
Registered
2023-03-22
Start date
2023-03-30
Completion date
2027-01-01
Last updated
2026-04-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Brief summary

This is a Phase III, randomized, double-blind, parallel, multi-center trail to evaluate the efficacy and safety of TQB3616 capsule combined with endocrine compared to placebo compared with endocrine in HR-positive and HER2-negative breast cancer adjuvant therapy. Approximately 1946 female subjects will be randomized to either TQB3616 combined with endocrine group or TQB3616-matching placebo combined endocrine group. Randomization will follow a 2:1 ratio, 1297 subjects in experimental group and 649 in the the Placebo Comparator group.

Interventions

DRUGTQB3616 capsules, Letrozole, Anastrozole, Tamoxifen

TQB3616 is a novel Cyclin-dependent kinase (CDK) 4/6 inhibitor and currently being used in the treatment of a variety of malignant solid tumors. Letrozole combined with Anastrozole and Tamoxifen is an endocrine therapy that involves adding, blocking, or removing hormones. It can be used for conditions that affect hormone levels, such as breast cancer.

DRUGPlacebo capsules, Letrozole, Anastrozole, Tamoxifen

Letrozole combined with Anastrozole and Tamoxifen is an endocrine therapy that involves adding, blocking, or removing hormones. It can be used for conditions that affect hormone levels, such as breast cancer.

Sponsors

Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* The subjects voluntarily joined the study and signed the informed consent, with good compliance. * Age: 18-75 years old (upon signing the informed consent); Eastern Cooperative Oncology Group Performance Status (PS) score: 0\~1; * Surgical treatment of radical mastectomy; * Pathological examination confirmed HR positive and HER2 negative invasive breast cancer; * The major organs are functioning well, meeting the following criteria: 1. Blood biochemical tests should meet the following criteria (no corrective therapy has been used within 7 days prior to screening): 1. Hemoglobin (HB) ≥90 g/L; 2. Neutrophil absolute value (NEUT) ≥ 1.5×109/L; 3. Platelet count (PLT) ≥ 100 ×109/L; 2. Blood biochemical tests should meet the following criteria (no corrective therapy has been used within 7 days prior to screening): 1. Total bilirubin (TBIL) ≤ 1.5 times the upper limit of normal (ULN); 2. Alanine transferase (ALT) and aspartate transferase (AST) ≤ 1.5×ULN; 3. Serum creatinine (Cr) ≤ 1.5×ULN, or creatinine clearance (Ccr) ≥ 60 ml/min; 3. Blood clotting tests must meet the following criteria (no anticoagulant therapy): 1. Prothrombin time (PT) ≤ 1.5×ULN; 2. Activated partial thromboplastin time (APTT) ≤ 1.5×ULN; 3. International Normalized ratio (INR) ≤ 1.5×ULN. 4. Left ventricular ejection fraction (LVEF) ≥50%.

Exclusion criteria

* Complicated diseases and medical history: 1. Has had other malignant tumors within 5 years or currently has other malignant tumors; 2. Have a variety of factors that affect oral medication (such as inability to swallow); 3. Current history of serious lung disease such as interstitial pneumonia; 4. Severe infections common terminology criteria for adverse events (≥CTCAE (common terminology criteria for adverse events) 2 grade) that were active or uncontrolled before the study treatment started (Except hair loss and hemoglobin); * Known allergy to aromatase inhibitors, tamoxifen, TQB3616/ placebo, or any excipients; * There was a history of live attenuated vaccine vaccination within 28 days prior to randomization or live attenuated vaccine vaccination was planned during the study period; * Participated in clinical trials of other antitumor agents within 4 weeks prior to randomization; * The presence of other serious physical or mental illnesses or abnormalities in laboratory tests that may increase the risk of study participation or interfere with the study results, as well as subjects who are deemed unsuitable for study participation for other reasons by the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Invasive Disease-Free Survival (IDFS)Baseline up to 60 monthsThe time from the date of randomization to the first occurrence of the following events, including ipsilateral or contralateral recurrence of invasive breast cancer, regional or distant recurrence of invasive breast cancer, secondary primary malignancy outside the breast, and death from any cause.

Secondary

MeasureTime frameDescription
Overall survival (OS)Baseline up to 60 monthsThe time from first administration to death of any cause.
Disease Relapse Free Survival (DRFS)Baseline up to 60 monthsThe time from the date of randomization to the first occurrence of distant recurrence or death from any cause.
Incidence of adverse eventsBaseline up to 60 monthsIncidence of adverse events assessed according to the common terminology criteria for adverse events (CTCAE).
Severity of adverse eventsBaseline up to 60 monthsSeverity of adverse events assessed according to the common terminology criteria for adverse events (CTCAE).
Incidence of abnormal laboratory test valuesBaseline up to 60 monthsIncidence of abnormal laboratory test values assessed according to the common terminology criteria for adverse events (CTCAE).
Severity of abnormal laboratory test valuesBaseline up to 60 monthsSeverity of abnormal laboratory test values assessed according to the common terminology criteria for adverse events (CTCAE).
Incidence of serious adverse eventsBaseline up to 60 monthsIncidence of serious adverse events assessed according to the common terminology criteria for adverse events (CTCAE).
Severity of serious adverse eventsBaseline up to 60 monthsSeverity of serious adverse events assessed according to the common terminology criteria for adverse events (CTCAE).

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 18, 2026