๐ฌIn plain words
What the trial is, and whether it could suit you
This is a randomized, double-blinded, placebo-controlled, cross-over trial examining the effect of a series of two weekly intravenous infusions of lidocaine 4 mg/kg and ketamine 0.2 mg/kg in patients with moderate to severe opioid-refractory chronic cancer-related pain. The aim of this study is to investigate whether the lidocaine - ketamine (LK) regimen provides better analgesia that an active placebo of midazolam 0.02 mg/kg, in this population.
Sign in to get the eligibility rules as simple questions to take to your doctor.
๐ Eligibility rules (as published)
Inclusion Criteria:
* Age 18 years or more
* Capacity to provide informed consent, ability to complete study assessments and comply with the study procedures
* Meets the IASP definition for chronic cancer-related pain
* Moderate or severe pain, defined as average pain of 4 or greater on an 11-point (0-10) NRS in the past 24h
* Adequate trial of opioid medication, defined as a dose of at least 60 mg/day oral morphine equivalent or maximum tolerated dose, in the past 24h
* For patients with neuropathic component to pain: adequate trial of at least one adjuvant analgesic, defined as a daily dose of at least Amitriptyline 37.5mg, Duloxetine 30mg, Gabapentin 900mg, Pregabalin 150mg, Venlafaxine 60mg or equivalent (26), or maximum tolerated dose in the past 24h
Exclusion Criteria:
* Previous adverse reaction to ketamine, lidocaine or other amide-type local anesthetics, midazolam
* Severe liver disease (Child Class B or C)
* SGPT or SGOT \>5 times the upper limit of normal
* End stage kidney disease
* Serious cardiac comorbidity (e.g. unstable angina, poorly controlled hypertension or tachycardia, high-risk coronary vascular disease, symptomatic heart failure with NYHA class III-IV, history of heart block, Wolf-Parkinson-White syndrome, Adams-Stokes syndrome)
* Elevated intracranial or intraocular pressure
* Pheochromocytoma or poorly controlled hyperthyroidism
* History of psychosis, schizophrenia or substance abuse
* Pregnant or breastfeeding
* Porphyria
* Life expectancy shorter than the duration of the study