***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: These results include data from one extra trial and so update those in the original publication ABC 2003. Platinum based combination chemotherapy showed a significant benefit on overall survival with a combined hazard ratio (HR) 0.86 (95% CI 0.77 to 0.95, P = 0.003); 14% reduction in the risk of death; 5% absolute benefit at 5 years (95% CI 1% to 7%); overall survival increased from 45% to 50%. This effect was observed irrespective of the type of local treatment and did not vary between subgroups of patients. The HR for all trials, including those that used single-agent cisplatin, tended to favour neoadjuvant chemotherapy (HR= 0.89, 95% CI 0.81 to 0.98, P = 0.022). Although platinum based combination chemotherapy was beneficial, there was no clear evidence to support the use of single-agent platinum, indeed there was significant difference in the effect between these groups of trials (P = 0.029). This improvement in survival encourages the use of platinum based combination chemotherapy for patients with invasive bladder cancer.
Output:

This review suggests that 50 out of 100 patients will be alive at five years, when they are given chemotherapy using a platinum drug in combination with other drugs, before having surgery and/or radiotherapy. This is compared to 45 out of every 100 patients who were given surgery and/or radiotherapy without chemotherapy. This benefit of platinum-based combination chemotherapy was seen in all types of patients and encourages its use for the treatment of invasive bladder cancer. However, chemotherapy based on a single platinum drug did not help patients live longer, and is not recommended.