Name two common platinum-based chemotherapeutic agents.

• A. Cisplatin and Carboplatin
• B. Paclitaxel and Docetaxel
• C. Methotrexate and 5-FU
• D. Vincristine and Vinblastine

Answer: (A)

Platinum-based chemotherapy agents work by delivering a platinum atom into the DNA of cancer cells, where it forms crosslinks that block DNA replication and transcription, leading to cell death. Cisplatin and carboplatin are two of the most commonly used drugs in this class and are well known for their DNA-damaging crosslinking mechanism, which makes them effective in a variety of solid tumors. Clinically, they’re often used in regimens for testicular, ovarian, bladder, and other cancers. Side effects can include kidney toxicity and nausea with cisplatin, while carboplatin tends to cause more blood-related (myelosuppressive) toxicity with generally less kidney toxicity.

The other options represent different classes of chemotherapy: paclitaxel and docetaxel are taxanes that stabilize microtubules; methotrexate and 5-FU are antimetabolites that disrupt nucleotide synthesis; vincristine and vinblastine are vinca alkaloids that inhibit microtubule formation. These are not platinum-based agents.