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AK112 or Placebo Plus Nab-Paclitaxel as First-line Treatment in Inoperable Locally Advanced/ Metastatic Triple-negative Breast Cancer

A Randomized, Controlled, Multi-center Phase III Clinical Study of AK112 Plus Nab-paclitaxel Versus Placebo Plus Nab-paclitaxel as First-line Treatment for Locally Advanced Unresectable or Metastatic Triple-negative Breast Cancer

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06767527
Enrollment
416
Registered
2025-01-10
Start date
2025-02-07
Completion date
2028-12-01
Last updated
2026-03-16

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

Conditions

Triple-Negative Breast Cancer (TNBC)

Brief summary

This multicenter, randomized, double-blind study aims to assess the safety and efficacy of AK112 in combination with Nab-Paclitaxel, compared to a placebo plus Nab-Paclitaxel, as a first-line treatment for inoperable locally advanced or metastatic triple-negative breast cancer (TNBC).

Interventions

DRUGAK112

AK112 via intravenous (IV) infusion

DRUGNab-paclitaxel

Nab-Paclitaxel 100mg/m2 via IV infusion on Days 1, 8, and 15 of each 28-day cycle

DRUGPlacebo

Placebo via IV infusion

Sponsors

Akeso
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

1. Voluntarily sign a written informed consent form. 2. Age at enrollment is ≥ 18 and ≤ 75 years, both males and females are eligible. 3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 4. Life expectancy of ≥ 3 months. 5. Histologically confirmed unresectable locally advanced or metastatic breast cancer with negative status for ER, PR, and HER-2. 6. Subjects who have not received prior systemic treatment for advanced breast cancer are eligible for the study. 7. Suitable for monotherapy with taxane-based agents. 8. At least one measurable lesion per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. 9. Adequate organ function.

Exclusion criteria

1. Patients with locally recurrent disease who are eligible for surgery or radiotherapy. 2. History of other malignancies within the past 5 years. 3. Active autoimmune disease requiring systemic treatment within the past 2 years. 4. Pregnant or breastfeeding women. 5. Concurrent participation in another clinical trial, unless it is an observational or non-interventional study or in the follow-up phase of an interventional study. 6. Participants with clinically symptomatic pleural effusion, pericardial effusion, or ascites that require repeated drainage. 7. Participants with a history of immune deficiency; those who test positive for HIV antibodies; those currently using systemic corticosteroids or other immunosuppressive agents on a long-term basis. 8. Individuals with known active tuberculosis (TB), or those suspected of having active TB (who must undergo clinical evaluation for exclusion), and those with known active syphilis infection.

Design outcomes

Primary

MeasureTime frameDescription
PFS assessed by IRRCUp to approximately 2 yearsProgression-Free Survival (PFS) assessed by Independent Radiologic Review Committee (IRRC)
OSUp to approximately 4 yearsOverall survival (OS) is defined as the time from randomization to death due to any cause

Secondary

MeasureTime frameDescription
PFS assessed by investigatorUp to approximately 2 yearsProgression-free survival is defined as the time from randomization to the first documented PD per RECIST 1.1 based on assessments by investigator or death due to any cause, whichever occurs first.
ORR assessed by IRRC or investigatorsUp to approximately 2 yearsObjective Response Rate (ORR) is defined as the percentage of participants in the analysis population who have a complete response (CR: disappearance of all lesions) or partial response (PR: at least a 30% decrease in the sum of diameters of target lesions). The percentage of participants who experienced a CR or PR as assessed by IRRC or investigators based on RECIST 1.1 is presented.
DCR assessed by IRRC or investigatorsUp to approximately 2 yearsDisease control rate (DCR) is defined as the sum rate of CR, PR and Stable Disease (SD), as determined by IRRC or investigators using RECIST v1.1
DoR assessed by IRRC or investigatorsUp to approximately 2 yearsDuration of response (DoR) is defined as the time period from the date of initial CR or PR until the date of PD or death due to any cause, whichever occurs first.
TTR assessed by IRRC or investigatorsUp to approximately 2 yearsTime to response (TTR) is defined as the time to response based on RECIST v1.1.
Adverse Events (AEs)Up to approximately 2 yearsIncidence and severity of participants with adverse events
Cmax and CminUp to approximately 2 yearsAK112 serum drug concentrations in subjects at different time points after AK112 administration.
Anti-drug antibodies (ADA)Up to approximately 2 yearsNumber of subjects with detectable anti-drug antibodies (ADA).

Countries

China

Contacts

CONTACTXufang Yu
clinicaltrials@akesobio.com+86(0760)89873999

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 17, 2026