Category Archives: ClinCalc News

Introducing the ClinCalc DrugStats Database and the 2017 Top 200 Drugs

ClinCalc DrugStats Database

We’re excited to announce the launch of our newest product at ClinCalc.com — the DrugStats Database!  This database provides free, web-based access to outpatient prescription utilization statistics for the United States encompassing more than 3 billion prescriptions annually.

Features of the ClinCalc DrugStats Database

By leveraging the database, users can identify trends and compare usage of approximately 500 different outpatient medications.  A few examples include: Continue reading

Calculate a “Fragility Index” to see which clinical trials BARELY meet statistical significance

ClinCalc.com's Fragility Index Calculator

When evaluating a clinical trial, readers often jump to the P value of the primary endpoint to determine whether the results of a trial are “statistically significant” or not. Although the P value is truly a continuous variable, the scientific community has been conditioned to disregard all results with P values ≥ 0.05, but to fully endorse any trials with a “statistically significant” P value less than 0.05.

Putting the debate and controversy about P values aside for the moment, as a reader, would you be less impressed with a study that changed from being statistically significant to insignificant if one single patient changed from not having the primary endpoint to having the primary endpoint? Especially in an era with a blind reliance on P values, the knowledge of the “fragility” or “robustness” of a study’s P value is another useful data point for readers to critically understand and analyze the results of a clinical trial.

The Concept of the “Fragility Index” for Clinical Trials

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New Colistin (colistimethate sodium) Calculator

Pseudomonas aeruginosa nutrient agar

Colistin (in the form of colistimethate sodium, or CMS, in the United States) is an older, last-line agent for multidrug-resistant gram-negative infections.  Because of colistin’s complex pharmacokinetics and for historical reasons, there is a paucity of data regarding its dosing in patients with severe gram negative infections, particularly for those with concurrent renal dysfunction.

In one of the largest pharmacokinetic analyses of colistin to date, Garonzik et al. published a detailed analysis of CMS dosing in critically ill patients.  This analysis included dosing recommendations for patients with normal renal function, acutely changing renal function, intermittent hemodialysis (IHD), and continuous renal replacement therapy (CRRT).

ClinCalc is excited to announce our new colistin dosing calculator, which is based on the Garonzik pharmacokinetic recommendations.  This calculator was developed in coordination with Julie Ann Justo, PharmD, MS, BCPS, AAHIVP — an Assistant Professor at the South Carolina College of Pharmacy who specializes in infectious diseases and HIV pharmacotherapy. Continue reading

Vancomycin Calculator Update – End of Infusion Peak (EoIP)

We’re releasing a major update to the calculation for our popular vancomycin calculator today. Briefly, the new update implements more advanced calculations when adjusting a vancomycin dose based on a trough level.

Drug Elimination during Vancomycin Infusion

When adjusting vancomycin based on a trough level, pharmacokinetic textbooks recommend estimating a vancomycin peak level using the following equation: Continue reading

ICU Trials Passes 100 Landmark Studies

Summarized landmark critical care trials on your mobile device

ClinCalc.com is proud to announce that ICU Trials by ClinCalc, a mobile application that summarizes landmark critical care trials, has surpassed 100 studies in the app database!

With our most recent update on April 18th, the following recent and historic landmark trials were added:

  • MIDEX (2012): Dexmedetomidine vs. midazolam for mechanical ventilation
  • PAC-Man (2005): Efficacy of PA catheters in ICU patients
  • FEAST (2011): Fluid boluses in African children with severe infection
  • VSE (2013): Vasopressin, steroids, and epinephrine during cardiac arrest
  • MOPETT (2012): Alteplase for moderate PE
  • Brochard (1994): T-piece, SIMV, or PSV for ventilator weaning

Continue reading

Speed Up Video Playback of The Top 250 Drugs Online Course

Increase Vimeo playback speed (Chrome extension)

At ClinCalc.com, we’re huge fans of listening and watching educational content at a faster than normal pace. Unfortunately, the video provider used for The Top 250 Drugs (online drug therapy course) does not allow for the ability to change playback speed.

If you’re using Google Chrome or Mozilla Firefox, though, you’re in luck!  Both web browsers have free extensions that allow you to speed up the playback speed of any video, including those on ClinCalc Academy.

Continue reading

The Top 250 Drugs – Online Pharmacotherapy Video Course

ClinCalc DrugStats Database

ClinCalc.com has been a bit quiet over the past year.  Our Twitter account has been mute, email updates rare, and website updates sparse.

Why the radio silence?

We’ve been diligently working on an exciting new product for the past year.  Quite literally, HUNDREDS of hours have been poured into the conception, creation, and implementation of this amazing new product.  Given this massive undertaking, we’ve kept website and mobile app updates to a minimum in order to expedite our production schedule. Continue reading

Incredible Update to Our Mobile Vancomycin Calculator (Android/iOS)

Vancomycin Calculator for Android and iOS Screenshot

Advanced vancomycin pharmacokinetics equations has never been this easy.

Our original Android-based Vancomycin Calculator was released in July 2011, followed a year later by our iPhone version.  In both mobile technology and the features of the ClinCalc.com website, a lot has changed in the last 2.5+ years.

Today, we’re proud to announce a full redesign of the popular Vancomycin Calculator by ClinCalc on Android and iOS devices. Continue reading

Visualizing the ACC/AHA ASCVD Pooled Cohort Equations

ASCVD Pooled Cohort Equations Visualization Tool - By Risk Factor

The newest ACC/AHA ASCVD Pooled Cohort Equations has been a very hot topic lately.  Our free web-based ASCVD tool and mobile applications have been very well received.  A number of ClinCalc readers have asked for a better understanding of the Pooled Cohort Equations — how is an ASCVD calculated?  How “strong” is each risk factor?

To help clinicians understand the new Pooled Cohort Equations, we’ve released a fantastic new visualization and graphing tool.  The tool is intended for the advanced clinician who wants to delve deeper into the equations and visualize the tool in a novel, interactive way.

Continue reading

New Web-Based 10-Year ASCVD Risk Calculator (Pooled Cohort Equations)

ASCVD Calculator for Android and iOS

 

 

At ClinCalc, we’re very proud to announce the availability of both a web-based 10-year ASCVD Risk Calculator (also termed the Pooled Cohort Equations Calculator).  This risk assessment tool is recommended by the newly published 2013 ACC/AHA cholesterol guidelines to estimate 10-year risk of atherosclerotic cardiovascular disease (ASCVD).