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ROC ALPS Amiodarone, Lidocaine, or Placebo Study

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Presentation on theme: "ROC ALPS Amiodarone, Lidocaine, or Placebo Study"— Presentation transcript:

1 ROC ALPS Amiodarone, Lidocaine, or Placebo Study
Version 24: Rev

2 Learning Objectives Understand the rationale for antiarrhythmic use in out-of-hospital cardiac arrest Understand how to carry out the ROC ALPS study protocol NOTE: IN ALPS, unless otherwise noted, the abbreviation “VF/VT” refers to ventricular fibrillation or pulseless ventricular tachycardia. v24

3 Reason for the Study About 24% of cardiac arrests are due to VF/VT
70% will re-fibrillate after the first shock Antiarrhythmic drugs (good or bad?): Unlikely to chemically convert patients out of VF/VT May increase probability of shock success May prevent VT/VF recurrence after defibrillation May result in higher incidence of bradycardia/asystole May improve, not change, or worsen patient outcome Current options: Lidocaine Amiodarone v24

4 Prior Amiodarone Studies
Seattle/King County medics (ARREST) Amiodarone vs. placebo Amiodarone improved admission alive to hospital→ NSD* in survival to discharge Toronto medics (ALIVE) Amiodarone vs. lidocaine Oslo medics IV/drugs vs. no IV IV/drugs improved admission alive to hospital → NSD* in survival to discharge All trials underpowered to address survival *No significant difference v24

5 New Formulation of Amiodarone
Amiodarone previously diluted in Polysorbate 80 (“Tween”) as Cordarone® & now generic formulations Caused hypotension Foaming issues Adherent to plastic—requires all-glass packaging New formulation: Nexterone® (PM101) Amiodarone diluted in Captisol Does not cause hypotension Safe for bolus administration Plastic-friendly—allows for prefilled non-glass syringes in future Currently FDA-approved only in glass syringe v24

6 Benefit of Antiarrhythmics Unclear
American Heart Association 2010 ACLS Guidelines Amiodarone or lidocaine (each is a class IIb weak “may be considered” recommendation for shock-refractory VF/VT) Amiodarone and lidocaine may have other adverse effects Neither drug ever proven to improve survival Unproven therapies may be . . . Beneficial Inconsequential (make no difference) Harmful The only way to know if lidocaine or amiodarone “work” is to compare either against neither (placebo) v24

7 Trial Design * In ALPS, ‘VF/VT’ refers to ventricular fibrillation or pulseless ventricular tachycardia v24

8 Inclusion Criteria YES: NO:
Non-traumatic out-of-hospital cardiac arrest Vascular access (IV or IO) Persistent/recurrent VF/VT after 1 (or more) shocks… (“it’s baaack!”) NO: Open label IV amiodarone or lidocaine use in-field1 Known hypersensitivity or allergy to amiodarone or lidocaine Protected population (prisoners, children2, pregnancy, etc.) 1This also excludes use of IO lidocaine to minimize pain when inserting/flushing IO line 2Under local age of consent v24

9 Inclusion continued… What counts as a “shock”?
ROC-EMS agency administered shock(s) First responder or BLS-AED delivered a shock ALS delivered a shock PAD and non-ROC agency shock(s) Not ICD shock(s) v24

10 Inclusion continued… What is persistent/recurrent VF/VT? It’s baaack!
Confirmed VF/pulseless VT (operationally, pulseless means needing CPR) seen anytime after first shock VF/VT seen (see-through CPR in systems that “look” at the rhythm after a shock before drug treatment ) after ≥1 shock VF/VT seen on second or later rhythm analysis (in systems that perform a formal rhythm analysis before each shock or drug intervention, or those who give drugs “blindly” (during CPR) following a shock) after ≥1 shock If thinking antiarrhythmic drug for VF/pulseless VT… give ALPS drug v24

11 Three (3) identical (blinded) syringes
Drug Kit Design Three (3) identical (blinded) syringes SYRINGE # AMIODARONE KIT LIDOCAINE KIT PLACEBO KIT 1A Amiodarone 150 mg (3 cc) Lidocaine 60 mg (3 cc) Placebo (3 cc) 1B 2 v24

12 Length: 7.75 in. Width: 4.5 in. Height: 1.75 in.
Drug Kit Design continued… Length: 7.75 in. Width: 4.5 in. Height: 1.75 in. v24

13 ClearLink Adapter Kits are packaged with a Baxter CLEARLINK Adapter
Adapter must be used to ensure compatibility with all IV infusion sets v24

14 ClearLink Adapter View supplemental ALPS training video,
“Mandatory use of CLEARLINK Adapters with ALPS Syringes” dated Six minute video reviewing background for CLEARLINK requirement, method of use, and reporting potential adverse events Posted on ROC-web: https://roc.uwctc.org/tiki/alps-training-materials Available for download: Windows Media or QuickTime formats v24

15 Study Protocol Cardiac Arrest—VF/pulseless VT After Shock #1 (or more)
NSR/ROSC/Asystole/PEA?→ Move on Still in VF/ VT?→ Give Syringes #1A and #1B After Subsequent shock(s) Still in VF/ VT?→ Give Syringe #2 Move on v24

16 What if VF/VT Returns? “It’s baaaack…”
Carry out the full ALPS Protocol What if I gave Syringes #1A and #1B, got pulses (ROSC) back, but VF/pulseless VT later returns? Shock again If this shock fails to stop VF/VT, give Syringe #2 v24

17 What about late-occurring VF/VT?
VF/pulseless VT is treated the same way anytime it recurs after 1 or more prior shocks. This applies to: VF/VT on EMS arrival VF/VT arrest after EMS arrival Late-occurring VF/VT Anytime VF/pulseless VT returns after 1 or more prior shocks (“it’s baaack”)→ give ALPS drug ASAP v24

18 A) My EMS agency does not “stop to look” after giving a shock
VF/pulseless VT seen on second or later rhythm analysis after ≥1 shock… Shock→ immediate CPR (without look) Give study drug during 2-minute period of CPR after shock, in the belief that VF/ VT is still present The rationale for this approach is that re-fibrillation during this 2-minute period is likely, even if the shock was initially successful. Shock at next scheduled pause v24

19 B) My EMS agency stops to look (peek) after giving a shock, or uses "see-thru" technology
Shock→ immediate CPR Brief (5-second max) pause at approximately 1 minute into CPR for rhythm check/confirmation If VF/VT, resume CPR and give ALPS drug Shock at next scheduled pause If no VF/VT or unable to determine, resume CPR and await next scheduled rhythm analysis v24

20 C) My EMS agency stops to look (peek) when changing compressors at 2 minutes after a shock
After 2 minutes of CPR, as compressors are switched, quickly look at the rhythm If VF/VT seen, resume CPR and charge monitor Give ALPS drug while charging→ then shock If not possible to give drug before shock, give it immediately afterward, as CPR is resumed If no VF/VT or unable to determine, resume CPR and await next scheduled rhythm analysis v24

21 D) My EMS agency performs a formal rhythm analysis before each drug or shock intervention
Analyze rhythm at customary end of 2-minute CPR period (maximum 5 seconds) If VF/ VT → start next 2-minute CPR period, give ALPS drug and charge defibrillator Shock at next scheduled pause If no VF/VT → resume CPR (or check pulse if organized rhythm seen) and treat per local protocol If unable to determine rhythm, resume CPR and await next scheduled rhythm analysis v24

22 Should I give epinephrine or vasopressin?
Yes Give epinephrine or vasopressin ASAP per local protocol If participating in CCC study, give within 5 minutes of arrival of ALS-capable EMS provider ALPS drug does not cause hypotension; does not require concurrent vasopressor If vasopressor not already just given, may administer epinephrine/vasopressin and first dose of ALPS drug back-to-back,* in order to expedite getting ALPS drug on board sooner *After flushing between drugs. v24

23 Is the first dose of the study drug two syringes or one?
First Dose = Syringe #1A and Syringe #1B Second Dose = Syringe #2 Exception = Small persons v24

24 What if the patient is small? (<100 lbs/45 kg)
Change from standard protocol First Dose = Syringe #1A only Second Dose = Syringe #1B only Do not use Syringe #2 v24

25 For any ALPS patient, what potential adverse events must be reported to ROC?
Non-function of ALPS syringe Anaphylaxis (severe allergic reaction) Pacing started in field Seizures, shivering, myoclonus Complications of IV or IO administration after ALPS given v24

26 What if VF/VT persists (or recurs) after I give all the study drug?
Further management at discretion of providers… May use other antiarrhythmics available to the agency (e.g., magnesium, beta blockers and/or procainamide) Additional shock(s) NO open label amiodarone or lidocaine in field permitted before or after ALPS drug* *Also excludes use of IO lidocaine to minimize pain when inserting/flushing IO line. v24

27 Should I start an infusion after achieving ROSC?
No known value of prophylactic antiarrhythmic drug infusions after cardiac arrest Since no open label amiodarone or lidocaine can be given in the field, no infusions of these drugs should be given by EMS providers (includes no IO administration of lidocaine given to minimize pain when inserting or flushing IO line) Duration of drug effect (“half-life”) should last until ED arrival Use of open label lidocaine or amiodarone is permitted in hospital v24

28 What to do about wide complex tachycardia with pulse/BP?
ALPS is strictly for shock-resistant VF/pulseless VT needing CPR. This applies to all doses of ALPS drug. If the rhythm doesn’t need CPR it shouldn’t get ALPS A perfusing wide complex tachycardia can be a supraventricular rhythm with BBB and not need further treatment. Drugs can make it worse! Transport to hospital for definitive diagnosis/care If in doubt, consider synchronized electrical cardioversion v24

29 What if one or more syringes are broken or do not function?
If any syringe in the kit is broken upon opening, or does not function prior to giving… Stop ALPS, shut the box, and move on Use open label lidocaine or amiodarone, if needed Usual drug doses If any portion of any ALPS syringe has already been given and syringe breaks or does not function… Limit lidocaine to ≤ 200 mg total dose May use amiodarone at usual doses v24

30 What must be reported when any ALPS syringe is broken or does not function?
Quarantine ALPS kit with the damaged syringe Document circumstances On patient record ROC-report form Promptly notify ROC coordinator Return ALPS kit with syringes to ROC coordinator v24

31 What should the Emergency Department do?
Notify ED that the patient may have received amiodarone or lidocaine or neither in the field Written script left with ED The script will indicate the drugs/doses the patient may have received in the field Limit lidocaine to an additional 100–120 mg over the next 2 hours in ED No restriction on additional amiodarone in ED All other ED treatments may be given as required v24

32 The Emergency Department really wants to know what drug we gave?
The ED script will include ROC physician name and phone number for the ED physician to contact for more information or questions Contact information for rare request to un-blind study drug Defer questions to local ROC staff v24

33 Peel-off Barcode labels
Drug Kit Peel-off Barcode labels PCR Affix to… Hospital Notification Sheet v24

34 FDA Directive When feasible, this written script will be presented to the LAR by the prehospital provider. The acute circumstances of cardiac arrest may rarely, if ever, afford such opportunity on-scene without compromising patient care. Accordingly, determining if or when presenting this script on-scene is feasible …will be left to clinical discretion of the provider. v24

35 Do I carry out ALPS and CCC at the same time?
Yes, both protocols can be done at the same time. CCC ALPS v24

36 Five Take-to-the-Street Principles of ALPS
Think of the ALPS drug as you would about any antiarrhythmic for VF/pulseless VT and use it accordingly… Prioritize vascular access Expedite ALPS drug for shock-resistant VF/VT rhythms requiring CPR VF/pulseless VT that persists/recurs after ≥1 shocks (“It’s baaack!”) OK to give vasopressor plus ALPS back-to-back to speed treatment* Give ALPS drug ASAP from when recurrent VF/VT last seen (≤2 minutes) Judge patient’s size Normal: 2 syringes→ 1 syringe rescue Small (<100 lbs/45 kg): 1 syringe→ 1 syringe rescue *After flushing between drugs v24

37 Five Take-to-the-Street Principles of ALPS continued…
Document when ALPS drug given Time-stamp each dose of ALPS drug Document shock number that follows each dose of ALPS drug Inform ED/Notify ROC of ALPS use v24

38 Questions?


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