Peripheral neuropathy as a side effect is caused by which of the following anti cancer drugs ?
**Core Concept**
Peripheral neuropathy is a type of nerve damage that can be caused by various factors, including certain anti-cancer drugs. This condition is characterized by damage to the peripheral nerves, leading to symptoms such as numbness, tingling, and pain in the hands and feet.
**Why the Correct Answer is Right**
Peripheral neuropathy as a side effect is commonly associated with platinum-based chemotherapeutic agents, such as oxaliplatin and cisplatin. These drugs work by inducing DNA damage and triggering apoptosis in rapidly dividing cancer cells. However, they can also damage the peripheral nerves, leading to neuropathy. The mechanism of neuropathy is thought to involve the inhibition of microtubule dynamics, disruption of axonal transport, and activation of apoptosis in neurons.
**Why Each Wrong Option is Incorrect**
* **Option A:** Docetaxel is a taxane-based chemotherapeutic agent that primarily causes myelosuppression, alopecia, and mucositis as its side effects. It does not typically cause peripheral neuropathy.
* **Option B:** 5-Fluorouracil (5-FU) is an antimetabolite that is primarily associated with gastrointestinal toxicity, myelosuppression, and mucositis. While it can cause some degree of neuropathy, it is not as commonly associated with this side effect as platinum-based agents.
* **Option D:** Gemcitabine is another antimetabolite that is primarily associated with myelosuppression, mucositis, and fatigue. While it can cause some degree of neuropathy, it is not as commonly associated with this side effect as platinum-based agents.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the risk of peripheral neuropathy is higher in patients receiving combination chemotherapy regimens, particularly those containing platinum-based agents. Additionally, the risk of neuropathy is higher in patients with pre-existing neuropathy, diabetes, or other underlying medical conditions.
**Correct Answer: C. Cisplatin**