**Summary:**
This study is testing a drug called TQB2930 for people with *recurrent (comes back)* or *metastatic (spread to other parts)* breast cancer. It has two parts: **Phase Ib** tests the safety and best dose for TQB2930 alone, and **Phase II** tests how it works with another drug called docetaxel. The study will be done openly, meaning everyone knows what treatment they're getting.
To join, you must be 18-75 years old with a good health score, and you should expect to live for at least 3 more months. Your cancer must be confirmed by medical tests. You shouldn't have had other cancers in the last 3 years or recent surgeries. Women must use birth control during and after the study. If you've had brain cancer that wasn't treated, or if you've used certain medicines recently, you can't join.
**3 Key Points:**
- **Length of Study:** You will need to participate over several months.
- **Visits Needed:** Multiple visits for treatment and check-ups.
- **Risks:** Possible side effects include reactions to the drug or treatment-related issues.
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