Clopidogrel

Reflection paper on investigation of pharmacokinetics in the obese population - Scientific guideline

Retrieved on: 
Wednesday, February 14, 2024

Reflection paper on investigations of pharmacokinetics in

Key Points: 
    • Reflection paper on investigations of pharmacokinetics in
      the obese population
      Table of contents
      1.
    • References .............................................................................................. 9

      Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 2/12

      1.

    • This is considered
      a shortcoming that is potentially compounded by obese patients often being poorly represented in
      clinical studies.
    • The specific aims of this reflection paper are to:
      ?

      describe how the effects of obesity can be investigated during clinical medicinal product
      development.

    • ?

      provide recommendations on when investigations of the effect of obesity on the PK of a
      medicinal product should be particularly considered.

    • Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 3/12

      ?

      discuss how to reflect PK (and/or PK/PD) findings in weight/weight-based dosing
      recommendations.

    • Absorption
      Reduced rate of absorption linked to locally reduced blood flow (8) is reported for the subcutaneous
      and transdermal routes in obese subjects.
    • Distribution
      The distribution of medicinal products is driven by body composition, regional blood flow and binding to
      tissue and plasma proteins.
    • Obese subjects have a larger absolute lean body weight (LBW) as well as fat mass.
    • The physicochemical properties of a medicinal product (lipophilicity, polarity, molecular size, and
      degree of ionization) influence its distribution in the body.
    • In BMI class III obese
      subjects, the blood flow per gram of fat is significantly lower than that observed in class I obese or
      lean subjects (4).
    • Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 4/12

      An increased amount of alpha-1-acid-glycoprotein (AAG), linked to a chronic inflammatory state, is
      reported in obese individuals.

    • Fatty infiltrations are present in the liver for 90% of obese subjects, with the extent of the infiltrations
      being proportional to the degree of obesity.
    • In some cases, in particular for CYP3A4 metabolized medicinal products,
      bodyweight normalized clearance can be lower in obese patients (23).
    • Based on presently available data, it has been suggested that uptake transporters

      Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 5/12

      are downregulated while efflux transporters may be upregulated (31).

    • Platelet hyper-reactivity is also observed,
      which can impair the response to anti-platelet medicinal products in obese patients (42, 43).
    • Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 6/12

      3.

      the medicinal product properties and scientific literature indicate that obesity may lead to a
      marked effect on elimination and/or distribution or on the PK/PD relationship.

    • These
      models may aid in extrapolating the known efficacy and safety in the non-obese population to the
      obese population.
    • The Pharmacokinetics of the CYP3A Substrate Midazolam in Morbidly Obese Patients
      Before and One Year After Bariatric Surgery.
    • Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 11/12

      41.

    • Reflection paper on investigations of pharmacokinetics in the obese population
      EMA/CHMP/535116/2016

      Page 12/12

Jiangsu Vcare Files NDA for Vicagrel Capsules with US FDA

Retrieved on: 
Thursday, January 4, 2024

This filing marks a significant milestone as Jiangsu Vcare's first NDA submission from its innovative drug pipeline.

Key Points: 
  • This filing marks a significant milestone as Jiangsu Vcare's first NDA submission from its innovative drug pipeline.
  • This NDA filing builds on continuous dialogues with the FDA and is supported by robust nonclinical data and clinical studies conducted in both China and US.
  • Vicagrel, a novel oral P2Y12 receptor antagonist, represents Jiangsu Vcare's commitment to addressing unmet clinical needs with innovative approaches.
  • This NDA filing reflects more than ten years of persistent innovation and dedication by Jiangsu Vcare.

Human medicines European public assessment report (EPAR): Rivaroxaban Viatris (previously Rivaroxaban Mylan), rivaroxaban, Date of authorisation: 12/11/2021, Revision: 5, Status: Authorised

Retrieved on: 
Tuesday, January 2, 2024

Human medicines European public assessment report (EPAR): Rivaroxaban Viatris (previously Rivaroxaban Mylan), rivaroxaban, Date of authorisation: 12/11/2021, Revision: 5, Status: Authorised

Key Points: 


Human medicines European public assessment report (EPAR): Rivaroxaban Viatris (previously Rivaroxaban Mylan), rivaroxaban, Date of authorisation: 12/11/2021, Revision: 5, Status: Authorised

CytoSorbents Highlights Upcoming Presentations at EACTS 2023: Focus on Antithrombotic Removal including the 2nd Analysis of the International STAR Registry

Retrieved on: 
Wednesday, September 27, 2023

The International STAR Registry captures high fidelity data on real-world clinical use and associated clinical outcomes using CytoSorb® for antithrombotic drug removal (ATR) in the acute hospital setting.

Key Points: 
  • The International STAR Registry captures high fidelity data on real-world clinical use and associated clinical outcomes using CytoSorb® for antithrombotic drug removal (ATR) in the acute hospital setting.
  • The STAR Registry, not to be confused with the completed U.S. and Canada STAR-T pivotal trial, is enrolling ahead of internal projections with plans for ongoing presentations at large, international conferences.
  • The first registry analysis entitled, “ Insights from the International Safe and Timely Antithrombotic Removal (STAR) Registry ” was presented at the EuroPCR conference in May 2023, the largest interventional cardiology conference in the E.U., attracting 11,500+ participants this year.
  • It also includes, for the first time, data on patients being treated with CytoSorb to reduce seven different antithrombotic medications.

Common heart medication less effective in south Asian people – new research

Retrieved on: 
Wednesday, August 23, 2023

People who have recently had a heart attack are often prescribed clopidogrel, a medication that decreases the risk of having another heart attack.

Key Points: 
  • People who have recently had a heart attack are often prescribed clopidogrel, a medication that decreases the risk of having another heart attack.
  • While the drug is very effective at preventing subsequent heart attacks, it can only work if it’s activated by the body’s CYP2C19 enzyme.
  • For example, more than nine in every ten Indigenous people of the Pacific islands have one of these genetic variants.
  • Our new study has also shown that clopidogrel may not be effective for many British south Asians.

Daily aspirin doesn't prevent strokes in older, healthy people after all

Retrieved on: 
Wednesday, July 26, 2023

The daily use of low dose aspirin has been a mainstay of preventing strokes for decades.

Key Points: 
  • The daily use of low dose aspirin has been a mainstay of preventing strokes for decades.
  • While there has always been a risk of bleeding associated with aspirin use, the benefits were thought to outweigh the risk.
  • Now new research led by Monash University has shown daily, low-dose aspirin doesn’t prevent strokes in relatively healthy people aged over 70.

Why has aspirin been used to prevent strokes?

    • They are what stop you from continuously bleeding any time you have a cut or scrape on your skin.
    • Because aspirin acts on platelets, it can help prevent the clots that can lead to a stroke.
    • But because aspirin acts on platelets, it can also increase the risk of unwanted bleeding, usually in the stomach.

Findings of the Monash trial

    • New research from Australia and the United States reports results from the Aspirin in Reducing Events in the Elderly (ASPREE) trial.
    • When compared with placebo, aspirin didn’t reduce or increase the risk of stroke.
    • Read more:
      Daily low-dose aspirin doesn't reduce heart-attack risk in healthy people

      These findings are not entirely new.

    • Research published five years ago based on the same ASPREE trial showed a similar result: a higher rate of bleeding among those taking low-dose aspirin compared with placebo.

What are the study’s limitations?

    • So we don’t know whether the results are translatable to people with different ethnic backgrounds.
    • Younger age groups were not studied either, so we cannot make any conclusions about their use of low dose aspirin to prevent stroke.

I’m taking aspirin, what should I do?

    • If you’re taking daily low-dose aspirin and are concerned by the results of the study, it’s important you don’t just stop taking your medicine.
    • For people who are at high risk of having a stroke, or have previously had one, low-dose aspirin may remain their treatment of choice despite the slight bleeding risk.
    • Nial regularly consults to industry on issues to do with medicine risk assessments, manufacturing, design, and testing.

Ascendia Pharmaceuticals Develops Novel Nanoemulsion IV Formulation for Clopidogrel that Received IND Approval

Retrieved on: 
Tuesday, June 27, 2023

NORTH BRUNSWICK, N.J., June 27, 2023 /PRNewswire/ -- Ascendia Pharmaceuticals CEO Jim Huang, Ph.D. announces Ascendia's patented EmulSol® nanotechnology has been used to develop a novel nanoemulsion IV formulation for clopidogrel that has received Investigational New Drug (IND) approval from the Food & Drug Administration (FDA). Ascendia, a leading specialty CDMO, developed the formulation in partnership with AcuteBio, LLC.  

Key Points: 
  • Ascendia, a leading specialty CDMO, developed the formulation in partnership with AcuteBio, LLC.
  • Ascendia has developed a novel nanoemulsion IV formulation for clopidogrel that has received IND approval from the FDA.
  • Our achievement is another milestone that hallmarks how Ascendia Pharmaceuticals continues to Make the Impossible Possible by leveraging our nanotechnologies," said Dr. Huang.
  • These nanotechnologies represent tremendous advantages in drug development and have proven track records in overcoming bioavailability, solubility, and stability challenges.

Paracetamol versus ibuprofen – which works best and when?

Retrieved on: 
Monday, June 26, 2023

In most cases, pain and fever relief is as simple as a trip to your local supermarket for some paracetamol or ibuprofen.

Key Points: 
  • In most cases, pain and fever relief is as simple as a trip to your local supermarket for some paracetamol or ibuprofen.
  • Nurofen is the common brand name for ibuprofen, which is also sold under generic brand names.

Different blocking actions

    • While ibuprofen and paracetamol can be taken for similar reasons (pain relief) each works in a slightly different way.
    • Ibuprofen is a non-steroidal anti-inflammatory drug, which means it acts by blocking the enzymes that produce a group of chemicals called prostaglandins.
    • Like ibuprofen, it is thought to act by blocking the enzymes that produce prostaglandins, although through a different mechanism to ibuprofen.

Is one drug better than the other?

    • Because they each provide pain relief in different ways, paracetamol can be better at treating some types of pain, while ibuprofen is better at treating other types.
    • But be wary of packaging that claims a medication is useful for targeting pain associated with a specific condition as these claims are not true.
    • Paracetamol does not reduce inflammation but it is a better choice when fever is associated with the pain, like when you have a cold or flu.

What about taking both or ‘piggybacking’ them at intervals?

    • If one pathway does not completely control the pain then it can be useful to target the other one.
    • Combination products that contain both paracetamol and ibuprofen in a single tablet include Nuromol and Maxigesic.
    • This keeps the levels of the medication in the body more constant and helps to provide more steady pain relief.
    • Read more:
      Take care with paracetamol when pregnant — but don't let pain or fever go unchecked

How do the side effects compare?

    • These can manifest as nausea, indigestion, bleeding in the stomach, and diarrhoea.
    • For this reason, people with a history of bleeding or ulcers in the gut should not take ibuprofen.
    • However, you need to be careful when using these medicines to make sure you don’t use more than is recommended.
    • Read more:
      The TGA is considering paracetamol restrictions due to poisonings – but what does that mean for consumers?

Both work, both need to be used safely

    • Always read the label so you know exactly what products you are using and how much.
    • Only take the recommended dose, and if you need to, write down the time you take each dose.
    • Your pharmacist or doctor can also advise on the best medicine for your pain and fever and how to use the selected medicine safely.

Delta4 Identifies a Potential New Therapeutic Option for Focal Segmental Glomerulosclerosis (FSGS) using computational Hyper-C Drug Discovery Platform

Retrieved on: 
Monday, June 19, 2023

VIENNA, June 19, 2023 /PRNewswire/ -- Delta4, a pioneering digital drug discovery company specializing in identifying new therapeutic indications for drugs with established safety profiles, has made a promising breakthrough in the search for novel treatments for Focal Segmental Glomerulosclerosis (FSGS).

Key Points: 
  • VIENNA, June 19, 2023 /PRNewswire/ -- Delta4 , a pioneering digital drug discovery company specializing in identifying new therapeutic indications for drugs with established safety profiles, has made a promising breakthrough in the search for novel treatments for Focal Segmental Glomerulosclerosis (FSGS).
  • The current therapeutic landscape for FSGS is inadequate, highlighting an urgent need for targeted therapies that focus on specific molecular pathways.
  • Delta4, leveraging its state-of-the-art proprietary AI platform, Hyper-C, combined with the expertise of its computational biologists, has generated a network-based molecular model of FSGS pathophysiology.
  • Through its advanced computational screening, Delta4 has identified clopidogrel, an anti-platelet drug, as a promising therapeutic candidate for FSGS.

Blue Water Biotech Expands Commercial Portfolio by Acquiring Six FDA-Approved Drugs Across Various Treatment Areas

Retrieved on: 
Wednesday, June 14, 2023

Under the terms of the Agreement, Blue Water Biotech, Inc. (“Blue Water” or the “Company”) will purchase the WraSer Assets for a total of $8.5 million cash consideration payable in three tranches: at signing, upon closing and within one year of closing.

Key Points: 
  • Under the terms of the Agreement, Blue Water Biotech, Inc. (“Blue Water” or the “Company”) will purchase the WraSer Assets for a total of $8.5 million cash consideration payable in three tranches: at signing, upon closing and within one year of closing.
  • In addition, WraSer shall receive 1.0 million restricted shares of Blue Water’s common stock on the closing date.
  • The closing of the transaction is subject to certain customary closing conditions, as well as WraSer’s delivery of 2022 audited financial statements for WraSer’s parent company, Legacy-Xspire Holdings, LLC, to Blue Water.
  • Blue Water will assume management of the WraSer Assets during the audit period.