Parenteral Manual

Trabectedin (INVESTIGATIONAL)

Disclaimer: Official controlled document is the CHEO online copy. It is the responsibility of user to ensure that any paper copy version is the same as the online version before use.

Alternate Name(s): 
Yondelis, ET-743, Ecteinascidin 743, NSC# S648766
Classification: 
Antineoplastic
Original Date: 
May 2009
Indications: 
  • Recurrent rhabdomyosarcoma, ewing sarcoma or non-rhabdomyosarcomatous soft tissue sarcomas

THIS MEDICATION IS TO BE ADMINISTERED BY A CHEMO-TRAINED NURSE. IF THE NURSE IS NOT CHEMO-TRAINED, THEY ARE TO CONTACT THE UNIT NURSE EDUCATOR OR ADVANCED PRACTICE NURSE.

 

Reconstitution and Stability: 
  • Available as 0.25 mg or 1 mg vials of sterile lyophilized powder in sucrose 10%
  • Refrigerate vials in outer carton
  • Protect from light
  • Use closest number of vial sizes to avoid wasting -allow to stand at room temperature for 15 minutes (in or out of individual cartons) before reconstitution
  • Reconstitute within 2 hours of removal from fridge.
  • Reconstitute 0.25 mg vials with 5 mL sterile water for injection and 1 mg vials with 20 mL sterile water for injection to get a 0.05 mg/mL solution
  • Shake manually for 10 seconds to complete mixing.
  • Dilute dose in 250 - 500 mL  NS  -withdraw & discard  volume of NS equal to volume of drug to be added  -use caution to prevent formation of product aerosols
  • Time from reconstitution to end of infusion should NOT exceed 30 hours   -if exceeded , a new diluted solution must be prepared to complete the administration cycle
  • Compatible with PVC and polyethylene tubing
Compatibility: 

-Solutions Compatible:  NS

Incompatible:  do not mix with any other drugs

Administration: 

(For approved routes of administration by nursing personnel, refer to Policy for the Administration of Intravenous Medications.)

SC NO
IM NO

IV Push

NO
IV Intermittent Infusion NO
IV Continuous Infusion YES
-over 24 hours via Central Line -strongly recommended

 

Dosage: 

(For neonatal dosages, refer to Neonatal IV Drug Manual.)

Pediatric:

  •  1.3 mg/m 2 or  1.5 mg/m2  every 21 days  -dose defined at study entry
Potential hazards of parenteral administration: 

Immediate  (within 1-2 days of receiving drug):

  • common -nausea, vomiting, constipation, anorexia, headache, dyspnea
  • occasional - injection site phlebitis and bruising, diarrhea, dehydration, dry mouth, salivary hypersecretion

Prompt  (within 2-3 weeks, prior to next cycle):

  • common -neutropenia, transaminitis, abdominal pain, respiratory tract infections, fatigue, asthenia
  • occasional -anemia, thrombocytopenia, febrile neutropenia, muscle weakness, weight loss, paresthesias, increase/decrease in serum electrolytes, increased CPK, increased alkaline phosphatase, increased creatinine, hyperbilirubinemia, alopecia

Rare

  • rhabdomyolysis
  • renal -failure, proteinuria, dysuria, polyuria, urinary retention
  • liver -failure
  • respiratory -failure, hypoxia, pleural effusion, pulmonary edema
  • gastrointestinal - esophagitis, mucositis
  • cardiac -congestive heart failure, cardiomyopathy

-Patients must meet specific criteria for hepatic, renal and cardiac function to receive Trabectedin

-Treatment for unusual side effects are available through the study chair identified on the front page of the protocol and/or pharmacy

Notes: 
  • Labeling should include a statement that Trabectedin is an experimental drug
  • All patients will receive dexamethasone the evening before, immediately prior to Trabectedin and on days 1-3 of each cycle.  This provides anti-emetic prophylaxis and hepatoprotective effects
  • Extensively metabolized by CYP-3A4-potent inducers and inhibitors (avoid aprepitant, erythromycin, clarithromycin, azithromycin, rifampin, fluconazole, ketoconazole, itraconazole, cannabinoids, leukotriene inhibitors
  • Anticonvulsants - avoid Trabectedin any sooner then 14 days after discontinuation of enzyme-inducing anticonvulsants (carbamazepine, phenobarbital, phenytoin)
  • Avoid warfarin and prochlorperazine 48 hours beforeto 72 hours after Trabectedin administration
  • Concomitant use of dexamethasone increased the plasma clearance of Trabectedin by 20%
  • CONTRAINDICATIONS -hypersensitivity to Trabectedin or any of its excipients, concurrent serious or uncontrolled infection, combination with yellow fever vaccine

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