diff --git a/faststream/confluent/client.py b/faststream/confluent/client.py
index d6eee25f40..e49ca6681e 100644
--- a/faststream/confluent/client.py
+++ b/faststream/confluent/client.py
@@ -153,13 +153,14 @@ async def send(
             kwargs["timestamp"] = timestamp_ms
 
         if not no_confirm:
-            result_future: asyncio.Future[Optional[Message]] = asyncio.Future()
+            loop = asyncio.get_running_loop()
+            result_future: asyncio.Future[Optional[Message]] = loop.create_future()
 
             def ack_callback(err: Any, msg: Optional[Message]) -> None:
                 if err or (msg is not None and (err := msg.error())):
-                    result_future.set_exception(KafkaException(err))
+                    loop.call_soon_threadsafe(result_future.set_exception, KafkaException(err))
                 else:
-                    result_future.set_result(msg)
+                    loop.call_soon_threadsafe(result_future.set_result, msg)
 
             kwargs["on_delivery"] = ack_callback