Phase II Study of Reuse of Oxaliplatin Hypersensitivity in Gastrointestinal Tumors

"For grade I-III hypersensitivity to oxaliplatin, oxa 0.01 mg/ml, 0.1 mg/ml and 5 mg/ml were used in sequence for skin test. 5% GS was used as a negative control. Test results are read within 15 to 20 minutes.~Grade IV: Permanently stop using oxaliplatin; Grade I-II: Take orally (cetirizine 10 mg bid, dexamethasone 8 mg bid, ranitidine 150 mg bid\*3dose) the day before the next cycle of oxaliplatin. The infusion rate is 50% of the original rate; if a grade II hypersensitivity reaction occurs again, the treatment method is the same as that of a grade III hypersensitivity reaction.~Grade III: Oral drugs are the same as above. 0.5h before oxaliplatin: dexamethasone 10mg iv, cimetidine 40mg iv, promethazine 25mg im. The first bag of 10% total amount of oxaliplatin + 5% GS500ml: 5ml/h\*1h, 45ml/h\*1h, then 225ml/h\*2 hours; then dexamethasone 10mg iv; the second bag of 90% total Oxa +5%GS500ml: 100ml/h\*0.5h, then 150ml/h\*3 hours."