Chloroquine and Hydroxychloroquine, With or Without Azithromycin, for COVID-19: An Addendum to the April 20, 2020 Brief Overview

Important new evidence became available since the original Brief Overview on the use of chloroquine or hydroxychloroquine, with or without azithromycin, for treating COVID-19 was posted on the CADTH website on April 20, 2020. This new information indicates that there is still uncertainty regarding the clinical benefit of using these drug regimens for treating patients […]

Convalescent Plasma Therapy for the Treatment of COVID-19 : A Review of Clinical Effectiveness

Convalescent plasma (CP) therapy is an intervention where plasma is collected from recovered COVID-19 patients in the hope that the disease-specific antibodies could help the recipient recover from COVID-19. Evidence on the effectiveness of CP therapy for the treatment of COVID-19 is still in the early stages. This report summarizes the current evidence and it […]

What You Should Know About Drug Treatments for COVID-19

CADTH created this handout, intended for the general public, explaining the risks of using unproven drug treatments for COVID-19. The handout also provides information on what to do if someone is experiencing COVID-19 symptoms, tips on how to assess the reliability of health information found on the internet, and a list of reliable websites that […]

Remdesivir: Evidence Review and Appraisal

CADTH conducted a Health Technology Review on remdesivir, an antiviral drug currently being used to treat COVID-19. Presently, remdesivir is not approved in Canada and access to it is limited to clinical trials. Four randomized controlled trials were identified (two completed and two ongoing) in the review; however, due to insufficient published evidence, the potential […]

Methoxyflurane for Acute Pain: Clinical Effectiveness

CADTH conducted a Rapid Response report to search for evidence on the comparative clinical effectiveness of methoxyflurane versus inhaled nitrous oxide for acute pain, as well as the clinical effectiveness of methoxyflurane for acute pain in pre-hospital or emergency department settings. One systematic review was identified; however, it has not been critically appraised by CADTH. […]

Reusing Metered Dose Inhalers in a Health Care Setting: Clinical Effectiveness, Cost-Effectiveness, and Guidelines

CADTH searched for evidence on the safety and cost-effectiveness of re-using the canister portion of metered dose inhalers (MDIs) across multiple patients in a health care setting. CADTH also searched for any evidence-based guidelines on the topic. Three non-randomized studies were identified regarding the safety of reusing the canister portion of MDIs and they are […]

Convalescent Plasma Therapy for the Treatment of COVID-19: Clinical Effectiveness

CADTH performed a literature search to find evidence on the clinical effectiveness of convalescent plasma therapy for the treatment of COVID-19. Two non-randomized studies were identified and their abstracts (as well as the links to the full publications) are included in this report; however, CADTH has not critically appraised these studies. Additional information of potential […]

Dialysis Modalities for the Treatment of End-Stage Kidney Disease

This summary tool provides an overview of the key findings of a CADTH review of dialysis modalities for the treatment of end-stage kidney disease. The review found that home-based dialysis modalities appear to offer clinical benefits similar to those offered by in-centre hemodialysis. Based on this review, self-care home-based dialysis is recommended for eligible patients. […]

Disposable Continuous Positive Airway Pressure Devices for Respiratory Distress: Clinical Effectiveness and Guidelines

CADTH conducted a Rapid Response search for evidence on the effectiveness of disposable continuous positive airway pressure (CPAP) devices compared with mechanical CPAP devices for patients in respiratory distress. One non-randomized study was found. This information might be of interest to health care decision-makers when considering the use of CPAP in the treatment of COVID-19. […]

Impact of substituting Coumadin lab test results

INESSS’s Position (07-05-2020) Based on the scientific literature available when preparing the report and on the various consultations carried out, and despite a very quick review process, INESSS finds that: There should not be any particular clinical issues in substituting Coumadin® with a generic version of warfarin. Section 21 of the Pharmacy Act shall apply. […]

Medication Administration via Multi-Dose Inhalers and Aerochambers Versus Nebulizers: Clinical Effectiveness

CADTH conducted a Rapid Response report to search for evidence regarding the clinical effectiveness of medication administration via multi-dose inhalers compared to nebulizers. This report may be of interest to health care professionals treating patients with asthma or chronic obstructive pulmonary disease, as the CADTH report found studies with patients experiencing these conditions. Link to […]

Resumption of elective health services amid COVID-19

CADTH has prepared a briefing note that describes the challenges health systems face in making decisions about resuming elective procedures during the COVID-19 pandemic, summarizes some recent guidance on service resumption, and discusses potential implications and long-term considerations for these choices. Link to Report Resumption of elective health services amid COVID-19

Plastic or Reusable Aerochambers in Multi-Dose Inhalers: Clinical Effectiveness and Guidelines

CADTH created a Rapid Response report that included a search for evidence regarding the clinical effectiveness of plastic or reusable aerochambers in multi-dose inhalers for patients requiring medication administration, as well as any evidence-based guidelines on the topic. However, no relevant literature or evidence-based guidelines were identified; therefore, no conclusions could be drawn. Link to […]

Chloroquine and Hydroxychloroquine, With or Without Azithromycin, for COVID-19: A Brief Overview

Chloroquine and hydroxychloroquine have been identified as potential treatments for COVID-19, with some clinical trials combining chloroquine or hydroxychloroquine with the antibacterial azithromycin. There is currently no evidence regarding the efficacy of chloroquine or hydroxychloroquine for the prevention of COVID-19. With respect to treating COVID-19, the current evidence related to the clinical efficacy of chloroquine […]


Remdesivir is an antiviral medication with activity against ribonucleic acid (RNA) viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes COVID-19. Remdesivir is not approved for use in any country. Randomized controlled trials evaluating the safety and efficacy of remdesivir are ongoing. The use of remdesivir for patients with COVID-19 […]

Pre-Treatment Mouth Rinses for Dental Patients With Suspected SARS or COVID-19: Clinical Effectiveness and Guidelines

In response to the COVID-19 pandemic, CADTH looked for studies on the clinical effectiveness of using pre-dental treatment mouth rinses for patients with suspected SARS or COVID-19 in order to prevent virus transmission from patients to oral health care providers. The report also looked for evidence-based guidelines for the use of pre-treatment mouth rinses in […]

An Overview of Clinical Applications of 3-D Printing and Bioprinting

This bulletin describes 3-D printing and bioprinting technologies in use, or being studied for use, in health care. No evidence on 3-D-printed personal protective equipment was found, but the bulletin might still be of interest to decision-makers considering 3-D printing as a solution to equipment shortages. There is currently a lack of high-quality evidence on […]

Initiatives to Optimize the Utilization of Laboratory Tests

This environmental scan provides information from across Canada and internationally on initiatives to improve patient care and reduce costs through test utilization management. This information may be useful to decision-makers looking at ways to optimize the use of COVID-19 tests. The report notes a lack of publicly available information on such initiatives. Link to Report […]

Transitioning Long-Term Ventilator-Dependent Patients Out of the Intensive Care Unit

This environmental scan reports on survey responses from nine Canadian long-term ventilator programs. It describes the varied ways the programs assess and address medical and non-medical factors before moving patients out of ICU. It might be of interest to those making decisions regarding the transition of stable COVID-19 patients from ICU ventilators to alternate levels […]