This document discusses phase I clinical trial methods for oncology. It provides an overview of common dose finding designs, including the 3+3 design and model-based alternatives. It then describes the toxicity probability intervals (TPI) method in more detail. TPI combines model-based methods with simple escalation rules to determine dose cohorts. It models toxicity probabilities using a beta distribution and defines probability intervals to determine whether to escalate, maintain, or de-escalate the dose level based on the interval with the highest probability. TPI provides a middle ground between algorithm-based and model-based approaches by being easy to implement without specialized software.
Causality Assessment in PharmacovigilanceClinosolIndia
Causality assessment is the process of determining whether a particular drug or medical intervention is the cause of an adverse event or reaction that has occurred in a patient. The following are some key principles and factors that are considered in causality assessment:
Temporal relationship: The timing of the adverse event in relation to the drug or intervention is a key factor in causality assessment. If the adverse event occurs shortly after the drug is administered or the intervention is performed, this may suggest a causal relationship.
Biological plausibility: The biological mechanisms by which the drug or intervention could cause the adverse event should be considered. If there is a plausible biological mechanism for the adverse event, this may support a causal relationship.
Alternative explanations: Other factors that could have caused the adverse event, such as pre-existing medical conditions, should be considered and ruled out before attributing the event to the drug or intervention.
Dose-response relationship: If there is a clear dose-response relationship between the drug or intervention and the adverse event, this may suggest a causal relationship.
Rechallenge: If the adverse event reoccurs when the drug or intervention is readministered, this may provide further evidence for a causal relationship.
There are several methods for conducting causality assessment, including the Naranjo algorithm, the World Health Organization-Uppsala Monitoring Centre (WHO-UMC) system, and the Liverpool Causality Assessment Tool (LCAT). These methods use different criteria and scoring systems to evaluate the likelihood of a causal relationship between the drug or intervention and the adverse event.
Causality Assessment in PharmacovigilanceClinosolIndia
Causality assessment is the process of determining whether a particular drug or medical intervention is the cause of an adverse event or reaction that has occurred in a patient. The following are some key principles and factors that are considered in causality assessment:
Temporal relationship: The timing of the adverse event in relation to the drug or intervention is a key factor in causality assessment. If the adverse event occurs shortly after the drug is administered or the intervention is performed, this may suggest a causal relationship.
Biological plausibility: The biological mechanisms by which the drug or intervention could cause the adverse event should be considered. If there is a plausible biological mechanism for the adverse event, this may support a causal relationship.
Alternative explanations: Other factors that could have caused the adverse event, such as pre-existing medical conditions, should be considered and ruled out before attributing the event to the drug or intervention.
Dose-response relationship: If there is a clear dose-response relationship between the drug or intervention and the adverse event, this may suggest a causal relationship.
Rechallenge: If the adverse event reoccurs when the drug or intervention is readministered, this may provide further evidence for a causal relationship.
There are several methods for conducting causality assessment, including the Naranjo algorithm, the World Health Organization-Uppsala Monitoring Centre (WHO-UMC) system, and the Liverpool Causality Assessment Tool (LCAT). These methods use different criteria and scoring systems to evaluate the likelihood of a causal relationship between the drug or intervention and the adverse event.
Gain the latest insight (2013) into 21 CFR Part 11 Compliance from AITalent's latest Webinar.
Discover:
Part 11 – What it is not, the myths.
Part 11 – What it is, the facts.
Part 11 – What does the future hold?
Find out more: www.aitalent.co.uk
Database Designing in Clinical Data ManagementClinosolIndia
When designing a Clinical Data Management (CDM) database, several key considerations should be taken into account to ensure efficient data capture, storage, and retrieval. Here are some important aspects to consider in CDM database design:
Define Study Requirements:
Understand the specific requirements of the study and the data to be collected. This includes variables, data types, formats, and any specific rules or calculations required for data validation and derivation. Consult with the study team and stakeholders to determine the necessary data elements.
Data Model Design:
Develop a data model that represents the structure and relationships of the data. Use standard data models, such as CDISC (Clinical Data Interchange Standards Consortium) standards, as a foundation. Define entities (e.g., patients, visits, assessments) and attributes (e.g., demographics, lab results) and establish relationships between them.
Data Dictionary:
Create a comprehensive data dictionary that provides a detailed description of each data element, including its name, definition, data type, length, format, allowable values, and any validation or derivation rules. The data dictionary serves as a reference for data entry and validation checks.
Database Schema:
Design the database schema based on the data model and data dictionary. Identify the tables, fields, and relationships needed to store the data. Determine primary and foreign keys to establish relationships between tables. Normalize the schema to reduce redundancy and improve data integrity.
Data Capture Forms:
Design user-friendly data capture forms to facilitate efficient and accurate data entry. Align the form layout with the data model and data dictionary. Include necessary data validation checks and provide clear instructions or prompts for data entry.
Data Validation and Quality Checks:
Incorporate data validation checks to ensure data accuracy and completeness. Implement range checks, format checks, consistency checks, and logic checks to identify and prevent data entry errors. Include data quality control processes to identify and resolve data discrepancies or anomalies.
Security and Access Controls:
Implement appropriate security measures to protect the confidentiality, integrity, and availability of the data. Define user roles and access levels to control data access and modification. Employ encryption, authentication, and audit trails to ensure data security and compliance with regulatory requirements.
Data Extraction and Reporting:
Consider the need for data extraction and reporting capabilities. Design mechanisms to extract data from the database for analysis or reporting purposes. Implement data export functionalities in commonly used formats, such as CSV or Excel, or integrate with reporting tools or systems.
Pharmacovigilance Training in Oracle Argus Safety Database with ProjectBioMed Informatics
Pharmacovigilance Training in Oracle Argus Safety Database with Project
BioMed Informatics Medwin Hospitals
BioMed Informatics Medwin Hospitals is a leading Clinical Research Organization offering full range of Clinical Research, Clinical Data Management, Oracle Clinical OC/RDC, Pharmacovigilance, Oracle Argus Safety, SAS Clinical, IPR & Regulatory Affairs trainings since the year of 2000 that are helpful for Life Sciences/Pharmacy students to enter into IT Companies and Pharma, Biotech, CRO industries.
Oracle Argus Safety is an advanced and comprehensive adverse events (AE) management system that helps life sciences companies enable regulatory compliance, drive product stewardship, and integrate safety and risk management into one comprehensive platform. Argus Safety is industry-proven and accepted, having been used for more than a decade at leading Pharmaceutical, Biotech, CRO, and IT Companies. Trainees get hands on practical training experience to create career paths.
Mode of Training: Instructor Led Class room/Online Training
Online Training Features:
Web based classroom
One faculty/student
Placement support
Regular/Fast track/Weekend batches
Flexible timings
Training Mode: Skype/Teamviewer
Hands-On Training on the Database
Direct access to Oracle Argus Safety Database
Our candidates employed in Novartis, Quintiles, TCS, Parexel International (India) Pvt Ltd, MakroCare, Global Hospitals, Apollo Hospitals, NIMS, Glenmark Pharmaceuticals Ltd, Jubilant, Reliance Life Sciences, Shantha Biotechnics Ltd, Mahindra Satyam, SMO Clinical Research (I) Pvt Ltd, Pioneer Corporate Services Inc-USA, ICMR, AstraZeneca-UK, Texas Woman’s University-USA and many more…
Certification
Certificate will be provided for this course on successful completion of Assignments & Projects. Certificate would be awarded at the end of the program by BioMed Informatics Medwin Hospitals.
Interested candidates are kindly requested to fill the enquiry form in the website www.biomedlifesciences.com for further information.
Please note that we also provide separate hostel facility assistance for ladies as well as gents.
Contact:
G.V.L.P. Subba Rao
BioMed Informatics
Medwin Hospitals B Block First Floor,
Nampally, Hyderabad-500 001, India
Phone: 040 - 40209750
Website: www.biomedlifesciences.com
Reporting of ICSR (individual case safety report)ClinosolIndia
An Individual Case Safety Report (ICSR) is a report of an adverse event or suspected adverse reaction to a medicinal product that has occurred in a patient or study subject. Reporting of ICSRs is a critical component of pharmacovigilance, as it helps to identify and assess potential risks associated with the use of a medicinal product.
The process for reporting an ICSR typically involves the following steps:
Identification of an adverse event or suspected adverse reaction: This may occur through a variety of channels, including spontaneous reports from healthcare professionals or patients, reports from clinical trials or other studies, or signals detected through pharmacovigilance activities.
Collection of information: Once an adverse event or suspected adverse reaction has been identified, information about the event must be collected, including the patient's demographic information, medical history, and details about the adverse event or reaction.
Assessment of causality: The information collected about the adverse event or reaction must be assessed to determine whether there is a causal relationship between the medicinal product and the event.
Completion of the ICSR: Once causality has been established, an ICSR must be completed, typically using a standardized form or electronic system. The ICSR should include all relevant information about the patient, the medicinal product, and the adverse event or reaction.
Submission of the ICSR: The completed ICSR must be submitted to the appropriate regulatory authority, typically through a designated reporting system.
It is important to report ICSRs in a timely and accurate manner, as this helps to ensure that potential risks associated with the use of medicinal products are identified and addressed promptly. Failure to report ICSRs can result in serious consequences, including harm to patients, regulatory action against pharmaceutical companies, and damage to public confidence in the healthcare system.
My 99th document...deals with TDM details for TACROLIMUS which is an IMMUNOSUPPRESSANT.
Headings include:
1. Class
2. Indications
3. Pharmacological details
4. Toxicological details
5. Pharmacological & toxicological concentrations
6. Sampling & assay details.
Drug Safety & Pharmacovigilance - Introduction - Katalyst HLSKatalyst HLS
Introduction to Drug Safety & Pharmacovigilance in Pharmaceuticals, Bio-Pharmaceuticals, Medical Devices, Cosmeceuticals and Foods.
Contact:
"Katalyst Healthcares & Life Sciences"
South Plainfield, NJ, USA
info@KatalystHLS.com
Part of the MaRS BioEntrepreneurship series session: Clinical Trials Strategy
Speaker: Miklos Schulz
This is available as an audio presentation:
http://www.marsdd.com/bioent/feb12
Also view the event blog and summary:
http://blog.marsdd.com/2007/02/14/bioentrepreneurship-clinical-trial-strategies-its-never-too-soon/
This presentation was made at the PAMM winter meeting in Verona (Italy) February 2019 and intended students to go through the basic methods used for phase I clinical trials.
A non technical overview of sample size calculation and why it is necessary with some brief examples of how to approach the problem and why it is useful to actually think of these calculations.
Adaptive Clinical Trials: Role of Modelling and Simulation SGS
To increase the efficiency of trials in drug development, optimal experimental design has been used to successfully optimize dose allocation and sampling schedules. Better incremental decisions in Phase I and II result in greater likelihood that the safety and efficacy of the right dose is being studied, for the right indication and in the right patient population. This approach involves a pre-planned adaptation of aspects of study design based on statistical and/or pharmacokinetic/pharmacodynamic (PK/PD) analysis. From a modelling and simulation (M&S) perspective, a prior understanding of concentration (dose)-efficacy and of concentration (dose)-toxicity relationship is needed.
PR-246: A deep learning system for differential diagnosis of skin diseasesSunghoon Joo
PR-246: A deep learning system for differential diagnosis of skin diseases
Paper link: https://arxiv.org/pdf/1909.05382.pdf
Video presentation link: https://youtu.be/8ZAtvPKqXeA
reviewed by Sunghoon Joo
The presentation is about the dose selection for laboratory animal toxicology drug testing, explaining staged and staggered approach of dose selection.
Gain the latest insight (2013) into 21 CFR Part 11 Compliance from AITalent's latest Webinar.
Discover:
Part 11 – What it is not, the myths.
Part 11 – What it is, the facts.
Part 11 – What does the future hold?
Find out more: www.aitalent.co.uk
Database Designing in Clinical Data ManagementClinosolIndia
When designing a Clinical Data Management (CDM) database, several key considerations should be taken into account to ensure efficient data capture, storage, and retrieval. Here are some important aspects to consider in CDM database design:
Define Study Requirements:
Understand the specific requirements of the study and the data to be collected. This includes variables, data types, formats, and any specific rules or calculations required for data validation and derivation. Consult with the study team and stakeholders to determine the necessary data elements.
Data Model Design:
Develop a data model that represents the structure and relationships of the data. Use standard data models, such as CDISC (Clinical Data Interchange Standards Consortium) standards, as a foundation. Define entities (e.g., patients, visits, assessments) and attributes (e.g., demographics, lab results) and establish relationships between them.
Data Dictionary:
Create a comprehensive data dictionary that provides a detailed description of each data element, including its name, definition, data type, length, format, allowable values, and any validation or derivation rules. The data dictionary serves as a reference for data entry and validation checks.
Database Schema:
Design the database schema based on the data model and data dictionary. Identify the tables, fields, and relationships needed to store the data. Determine primary and foreign keys to establish relationships between tables. Normalize the schema to reduce redundancy and improve data integrity.
Data Capture Forms:
Design user-friendly data capture forms to facilitate efficient and accurate data entry. Align the form layout with the data model and data dictionary. Include necessary data validation checks and provide clear instructions or prompts for data entry.
Data Validation and Quality Checks:
Incorporate data validation checks to ensure data accuracy and completeness. Implement range checks, format checks, consistency checks, and logic checks to identify and prevent data entry errors. Include data quality control processes to identify and resolve data discrepancies or anomalies.
Security and Access Controls:
Implement appropriate security measures to protect the confidentiality, integrity, and availability of the data. Define user roles and access levels to control data access and modification. Employ encryption, authentication, and audit trails to ensure data security and compliance with regulatory requirements.
Data Extraction and Reporting:
Consider the need for data extraction and reporting capabilities. Design mechanisms to extract data from the database for analysis or reporting purposes. Implement data export functionalities in commonly used formats, such as CSV or Excel, or integrate with reporting tools or systems.
Pharmacovigilance Training in Oracle Argus Safety Database with ProjectBioMed Informatics
Pharmacovigilance Training in Oracle Argus Safety Database with Project
BioMed Informatics Medwin Hospitals
BioMed Informatics Medwin Hospitals is a leading Clinical Research Organization offering full range of Clinical Research, Clinical Data Management, Oracle Clinical OC/RDC, Pharmacovigilance, Oracle Argus Safety, SAS Clinical, IPR & Regulatory Affairs trainings since the year of 2000 that are helpful for Life Sciences/Pharmacy students to enter into IT Companies and Pharma, Biotech, CRO industries.
Oracle Argus Safety is an advanced and comprehensive adverse events (AE) management system that helps life sciences companies enable regulatory compliance, drive product stewardship, and integrate safety and risk management into one comprehensive platform. Argus Safety is industry-proven and accepted, having been used for more than a decade at leading Pharmaceutical, Biotech, CRO, and IT Companies. Trainees get hands on practical training experience to create career paths.
Mode of Training: Instructor Led Class room/Online Training
Online Training Features:
Web based classroom
One faculty/student
Placement support
Regular/Fast track/Weekend batches
Flexible timings
Training Mode: Skype/Teamviewer
Hands-On Training on the Database
Direct access to Oracle Argus Safety Database
Our candidates employed in Novartis, Quintiles, TCS, Parexel International (India) Pvt Ltd, MakroCare, Global Hospitals, Apollo Hospitals, NIMS, Glenmark Pharmaceuticals Ltd, Jubilant, Reliance Life Sciences, Shantha Biotechnics Ltd, Mahindra Satyam, SMO Clinical Research (I) Pvt Ltd, Pioneer Corporate Services Inc-USA, ICMR, AstraZeneca-UK, Texas Woman’s University-USA and many more…
Certification
Certificate will be provided for this course on successful completion of Assignments & Projects. Certificate would be awarded at the end of the program by BioMed Informatics Medwin Hospitals.
Interested candidates are kindly requested to fill the enquiry form in the website www.biomedlifesciences.com for further information.
Please note that we also provide separate hostel facility assistance for ladies as well as gents.
Contact:
G.V.L.P. Subba Rao
BioMed Informatics
Medwin Hospitals B Block First Floor,
Nampally, Hyderabad-500 001, India
Phone: 040 - 40209750
Website: www.biomedlifesciences.com
Reporting of ICSR (individual case safety report)ClinosolIndia
An Individual Case Safety Report (ICSR) is a report of an adverse event or suspected adverse reaction to a medicinal product that has occurred in a patient or study subject. Reporting of ICSRs is a critical component of pharmacovigilance, as it helps to identify and assess potential risks associated with the use of a medicinal product.
The process for reporting an ICSR typically involves the following steps:
Identification of an adverse event or suspected adverse reaction: This may occur through a variety of channels, including spontaneous reports from healthcare professionals or patients, reports from clinical trials or other studies, or signals detected through pharmacovigilance activities.
Collection of information: Once an adverse event or suspected adverse reaction has been identified, information about the event must be collected, including the patient's demographic information, medical history, and details about the adverse event or reaction.
Assessment of causality: The information collected about the adverse event or reaction must be assessed to determine whether there is a causal relationship between the medicinal product and the event.
Completion of the ICSR: Once causality has been established, an ICSR must be completed, typically using a standardized form or electronic system. The ICSR should include all relevant information about the patient, the medicinal product, and the adverse event or reaction.
Submission of the ICSR: The completed ICSR must be submitted to the appropriate regulatory authority, typically through a designated reporting system.
It is important to report ICSRs in a timely and accurate manner, as this helps to ensure that potential risks associated with the use of medicinal products are identified and addressed promptly. Failure to report ICSRs can result in serious consequences, including harm to patients, regulatory action against pharmaceutical companies, and damage to public confidence in the healthcare system.
My 99th document...deals with TDM details for TACROLIMUS which is an IMMUNOSUPPRESSANT.
Headings include:
1. Class
2. Indications
3. Pharmacological details
4. Toxicological details
5. Pharmacological & toxicological concentrations
6. Sampling & assay details.
Drug Safety & Pharmacovigilance - Introduction - Katalyst HLSKatalyst HLS
Introduction to Drug Safety & Pharmacovigilance in Pharmaceuticals, Bio-Pharmaceuticals, Medical Devices, Cosmeceuticals and Foods.
Contact:
"Katalyst Healthcares & Life Sciences"
South Plainfield, NJ, USA
info@KatalystHLS.com
Part of the MaRS BioEntrepreneurship series session: Clinical Trials Strategy
Speaker: Miklos Schulz
This is available as an audio presentation:
http://www.marsdd.com/bioent/feb12
Also view the event blog and summary:
http://blog.marsdd.com/2007/02/14/bioentrepreneurship-clinical-trial-strategies-its-never-too-soon/
This presentation was made at the PAMM winter meeting in Verona (Italy) February 2019 and intended students to go through the basic methods used for phase I clinical trials.
A non technical overview of sample size calculation and why it is necessary with some brief examples of how to approach the problem and why it is useful to actually think of these calculations.
Adaptive Clinical Trials: Role of Modelling and Simulation SGS
To increase the efficiency of trials in drug development, optimal experimental design has been used to successfully optimize dose allocation and sampling schedules. Better incremental decisions in Phase I and II result in greater likelihood that the safety and efficacy of the right dose is being studied, for the right indication and in the right patient population. This approach involves a pre-planned adaptation of aspects of study design based on statistical and/or pharmacokinetic/pharmacodynamic (PK/PD) analysis. From a modelling and simulation (M&S) perspective, a prior understanding of concentration (dose)-efficacy and of concentration (dose)-toxicity relationship is needed.
PR-246: A deep learning system for differential diagnosis of skin diseasesSunghoon Joo
PR-246: A deep learning system for differential diagnosis of skin diseases
Paper link: https://arxiv.org/pdf/1909.05382.pdf
Video presentation link: https://youtu.be/8ZAtvPKqXeA
reviewed by Sunghoon Joo
The presentation is about the dose selection for laboratory animal toxicology drug testing, explaining staged and staggered approach of dose selection.
Critical evaluation of an article titled " Systematic review of basket trials, umbrella trials, and platform trials: A landscape analysis of master protocols"
PUH 5302, Applied Biostatistics 1
Course Learning Outcomes for Unit III
Upon completion of this unit, students should be able to:
4. Recommend solutions to public health problems using biostatistical methods.
4.1 Compute and interpret probability for biostatistical analysis.
4.2 Draw conclusions about public health problems based on biostatistical methods.
5. Analyze public health information to interpret results of biostatistical analysis.
5.1 Analyze literature related to biostatistical analysis in the public health field.
5.2 Prepare an annotated bibliography that explores a topic related to public health issues.
Course/Unit
Learning Outcomes
Learning Activity
4.1
Unit Lesson
Chapter 5
Unit III Problem Solving
4.2
Unit Lesson
Chapter 5
Unit III Problem Solving
5.1
Chapter 5
Unit III Annotated Bibliography
5.2
Chapter 5
Unit III Annotated Bibliography
Reading Assignment
Chapter 5: The Role of Probability
Unit Lesson
Welcome to Unit III. In previous units, we discussed some fundamentals of biostatistics and their application
to solving public health problems. In Unit III, we will compute, interpret, and apply probability, especially in
relation to different populations.
Computing and Interpreting Probabilities
Probability means using a number (or numbers) to demonstrate how likely something is to occur. For
example, if a coin is tossed, the probability of getting a heads or tail is one out of two chances; that is ½.
Researchers have used probability studies to predict weather and other events and have been successful to
some extent. Public health professionals have used statistical methods to predict the chances of health-
related events, thereby providing arguments in favor of taking precautionary measures and warning the
general public on important health issues.
In biostatistics, we use both descriptive statistics and inferential statistics to address public health issues
within a population. In most cases, researchers are not able to study the entire population; they try to get a
sample from the population from which they can generalize their findings.
Descriptive Statistics
Aside from the use of probability sampling methods, there are other methods used for the computation and
interpretation of data; these are generally known as descriptive statistics. With descriptive statistics, we
UNIT III STUDY GUIDE
Probability
PUH 5302, Applied Biostatistics 2
UNIT x STUDY GUIDE
Title
normally compute the mean, mode, median, variance, and standard deviation. Information obtained using
such computation methods is used for descriptive purposes, as opposed to information obtained from
inferential statistics.
Let’s examine this example using the numbers 5, 10, 2, 4, 6, 10, 2, 3, and 2.
The mean is the sum of all the numbers ÷ the number of cases
= 37 ÷ 9
= 4.11
The median is the middle number after the numbers have been arranged in an ascending or descend ...
Freshers in clinical research and regulatory affairs must go through this presentation. It will help you to understand the basis of clinical trial design as per European guidelines, which is the most preferred reference guideline. Initially, I also faced many problems to understand this concept. A student who is studying a clinical research diploma can also use this presentation for their basic understanding.
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
1. Adaptive Dose Finding Using Toxicity
Probability IntervalsProbability Intervals
Neby Bekele, PhDy ,
Senior Director
Gil d S iGilead Sciences
1Phase I & TPI. Oct, 2014.
2. Outline of TalkOutline of Talk
Phase I Clinical Trials in Oncologygy
Overview of common methods
– 3+3 Design3 3 Design
– Model Based Alternatives
Overview of the TPI method Overview of the TPI method
Implementation and Software Demonstration
Concluding Remarks
2Phase I & TPI. Oct, 2014.
3. Phase I Clinical Trials in OncologyPhase I Clinical Trials in Oncology
Given a set of doses of a new agent find a dose
with an “acceptable” level of toxicityy
Underlying Assumptions:
– We explicitly assume that the probability of toxicityWe explicitly assume that the probability of toxicity
increases with dose
– While implicitly assuming that the probability of
response increases with dose
3Phase I & TPI. Oct, 2014.
4. Phase I Clinical Trials in OncologyPhase I Clinical Trials in Oncology
Implications of underlying assumptions:
A higher dose is worse because it is more likely toA higher dose is worse, because it is more likely to
cause toxicity while also being better because it is
more likely to have an anti-tumor effecty
Goal: Finding the dose that balances benefit
relative to risk (i.e., the MTD)( )
4Phase I & TPI. Oct, 2014.
5. Practical Considerations for Phase I Oncology
Clinical TrialsClinical Trials
For ethical reasons doses must be selected For ethical reasons, doses must be selected
sequentially, for small cohorts of patients
It may be the case that no dose is safe It may be the case that no dose is safe
The maximum sample size is usually very small
Patient heterogeneity is usually ignored
Little is known about the dose-toxicity curvey
Evaluating toxicity usually takes weeks
Whil t i iti f i t d
5Phase I & TPI. Oct, 2014.
While toxicities are of various types and
severities, this is usually ignored
6. Practical Considerations for Phase I Oncology
Clinical TrialsClinical Trials
For ethical reasons doses must be selected For ethical reasons, doses must be selected
sequentially, for small cohorts of patients
Phase I is often ethical only for patients with Phase I is often ethical only for patients with
little or no therapeutic alternative
– Patients typically are pre-treated, with advanced ora e s yp ca y a e p e ea ed, ad a ced o
resistant disease, little chance of response
– Dose-finding typically is done in terms of toxicity
only to find a “maximum tolerated dose”only, to find a maximum tolerated dose
6Phase I & TPI. Oct, 2014.
7. Typical Phase I Oncology Clinical Trial SetupTypical Phase I Oncology Clinical Trial Setup
The investigator chooses the starting levelg g
based on clinical judgment, & possibly animal or
in vitro data
Treat patients in cohorts of 1, 2, or 3
Escalate & de-escalate using reasonable rules & g
If the lowest dose is too toxic, stop the trial, or
add lower dose levelsadd o e dose e e s
7Phase I & TPI. Oct, 2014.
8. The 3+3 DesignThe 3+3 Design
Example of an Up-and-Down Designp p g
Algorithm based
– “If I see this then I do this”If I see this then I do this
Up-and-down designs based on 1948 paper by
Mood and Dixon (applications dealt withMood and Dixon (applications dealt with
explosives and lethal toxicities!)
Easy to understand Easy to understand
Easy to implement
8Phase I & TPI. Oct, 2014.
9. Example 3+3 Decision Rules (Approach I)Example 3+3 Decision Rules (Approach I)
# Patients with DLT Decision
0/3 Escalate one level
1/3 Treat 3 more1/3 Treat 3 more
at the same level
2/3 or 3/3 Stop & choose previous levelp p
as the MTD
1/3 + {0/3} Escalate one level
1/3 + {1/3} Stop & choose previous level
as the MTD
9Phase I & TPI. Oct, 2014.
1/3 + { 2/3 or 3/3 } Stop & choose previous level
as the MTD
10. Example 3+3 Decision Rules (Approach II)Example 3+3 Decision Rules (Approach II)
Step 1: Enroll 3Step 1: Enroll 3
patients at the kth
Dose
More than
3 patients
>1 toxicities1 toxicity
0 toxicities
Let k=k+1 and go to Step 1.
Step 1B: Enroll 3 more patients
at the kAth Dose.
3 patients
enrolled at
dose k-1?
No Yes
>2 toxicities for
all patients at
k dose
Declare the
previous dose
the MTD
Enroll 3 more
patients at
previous dose. Let
k = k-1Go to Step 1
0 toxicity for
current cohort
10Phase I & TPI. Oct, 2014.
11. High Level Process for Implementing a 3+3
MethodMethod
Decision RuleData
Decision
Framework for
Toxicity Data
making dosing
decisions
Toxicity Data
11Phase I & TPI. Oct, 2014.
12. Problems with the 3+3 DesignProblems with the 3+3 Design
Ignores most of the data
St th t i l l ti l i kl Stops the trial relatively quickly
Unreliable and increases the risk of choosing an
i ff ti dineffective dose
Is not flexible in that it does not allow the
h t h th t t d t i it ilresearcher to change the targeted toxicity easily.
12Phase I & TPI. Oct, 2014.
13. Model Based AlternativesModel Based Alternatives
Much more reliable than 3+3 algorithms
M d l b d th d iti t Model based methods are sensitive to
underlying assumptions about the dose-toxicity
relationshipp
Minimally, requires expertise in the
implementation of model based methodsp e e tat o o ode based et ods
May requires specialized software for trial
conduct (including web-based software)
13Phase I & TPI. Oct, 2014.
co duct ( c ud g eb based so t a e)
14. Adaptive Dose findingAdaptive Dose-finding
Write Down a Probability Model
D fi t f t ti ti i d l d Define a set of statistics using your model and a
set of decision rules to choose doses adaptively
At th d f th t d th d l t d l At the end of the study use the model to declare
an MTD
W it ft f d t f T i l d f Write software for conduct of Trial and perform a
simulation study to ensure the method can find
appropriate doses.
14Phase I & TPI. Oct, 2014.
app op ate doses
15. Bayesian Models
(Commonly Used in Phase I Dose Finding)(Commonly Used in Phase I Dose-Finding)
All Bayesian inferences follow from Bayes’
Theorem:
posterior prior • likelihood
The posterior is a product of our prior e poste o s a p oduct o ou p o
knowledge (and subjective beliefs) and a
summary of the observed data
15Phase I & TPI. Oct, 2014.
16. Bayesian Models
(Commonly Used in Phase I Dose Finding)(Commonly Used in Phase I Dose-Finding)
1) Specify statistical model to estimate the) p y
Toxicity probabilities
p1 < p2 < … < pkp1 p2 pk
corresponding to the k dose levels
2) S if t t T i it b bilit *2) Specify a target Toxicity probability, pTOX*
3) Prob(Toxicity | dose j) = pj , j=1,…,k,
*O’Quigley, Pepe, Fisher. (Biometrics, 1990)
16Phase I & TPI. Oct, 2014.
17. Bayesian Models
(Commonly Used in Phase I Dose Finding)(Commonly Used in Phase I Dose-Finding)
4) Treat each successive cohort at the dose j* for) j
which pj* is closest to pTOX*.
5) The dose satisfying (4) at the end of the trial is
the selected to be the MTDthe selected to be the MTD
17Phase I & TPI. Oct, 2014.
18. Pros and Cons of the Two Model Based
ApproachesApproaches
3+3 Design Model Based Approaches
Pros:
1. Easy to Implement
Pros:
1. More reliable
2. Easy to understand
3. Stops the trial relatively
quickly
Cons:
1. Requires specializedquickly
Cons:
1 Ignores most of the data
1. Requires specialized
software for both trial setup
and conduct
2 May be sensitive to prior1. Ignores most of the data
2. Stops the trial relatively
quickly
2. May be sensitive to prior
assumptions
18Phase I & TPI. Oct, 2014.
19. Adaptive ModelsAdaptive Models
Assume you decide to use an Adaptive Model
Which model should you use? Keeping up with
ll th h i b bit i d b liall the choices can be a bit mind-boggling
How should the model interface with the user?
19Phase I & TPI. Oct, 2014.
20. High Level Process for Implementing a Model
Based Method: Statistician as InterfaceBased Method: Statistician as Interface
ModelData Statistician
Statistician as User
Statistical
Framework for
Toxicity Data
Interface Model making dosing
decisions
Toxicity Data
20Phase I & TPI. Oct, 2014.
21. High Level Process for Implementing a Model
Based Method: Graphical InterfaceBased Method: Graphical Interface
Data Model User
Interface
Graphical User
Statistical
Framework for
k d
Toxicity Data
Interface Modelmaking dosing
decisions
Toxicity Data
21Phase I & TPI. Oct, 2014.
22. Pros and Cons of the Two Model Based
ApproachesApproaches
Statistician as Interface Graphical User Interface
Pros:
1. Relatively Easy to
Pros:
1. Easy to Scale up
Implement
Cons:
Cons:
1. Requires expertise in bothCons:
1. Difficult to Scale up (may
be difficult to use in a
multicenter setting)
1. Requires expertise in both
statistics (to build the model)
and computer programming
(to build the GUI and to havemulticenter setting)
2. Risk of data entry error
(to build the GUI and to have
the data communicate with
the model)
22Phase I & TPI. Oct, 2014.
2. Risk of data entry error
23. Middle Ground: Toxicity Probability IntervalsMiddle Ground: Toxicity Probability Intervals
Combines model based methods with simple
up-and-down rules similar to the 3+3 algorithmp g
A simple spreadsheet can be used to monitor
Escalation Rules
23Phase I & TPI. Oct, 2014.
24. Toxicity Probability Intervals (mTPI)Toxicity Probability Intervals (mTPI)
A priori, assumes that pi follows a non-
informative beta(0.0005,0.0005) distribution( , )
A t i i th d l th t f ll A posteriori, the model assumes that pi follows a
beta(xi+.0005,ni-xi+0.0005) distribution
24Phase I & TPI. Oct, 2014.
25. Toxicity Probability Intervals (TPI)Toxicity Probability Intervals (TPI)
K1 and K2 are constants and i is the posterior1 2 i p
standard deviation of pi
Pe: Pr(0 < pi<K1i | data)
Ps: Pr( K1i <pi<K2i | data)
Pd: Pr( K2i <pi< 1 | data)
25Phase I & TPI. Oct, 2014.
Pstop: Pr(pi> | data)
26. Modified Toxicity Probability Intervals (mTPI)Modified Toxicity Probability Intervals (mTPI)
A priori, assumes that pi follows a uniform
beta(1,1) distribution( , )
A t i i th d l th t f ll A posteriori, the model assumes that pi follows a
beta(xi+1,ni-xi+1) distribution
26Phase I & TPI. Oct, 2014.
28. Toxicity Probability Intervals (TPI):
Decision RulesDecision Rules
If Pstop>.9 then do not allow additional patients to enrollstop p
to the ith dose
If Pe is largest then escalate to the next dose
If Ps is largest then stay at the current dose
If Pd is largest then de-escalate
28Phase I & TPI. Oct, 2014.
29. Toxicity Probability Intervals (TPI):
Decision RulesDecision Rules
Decision Rules lead to the exact same decisions as a
Decision-Theoretic framework in which the loss
functions are defined as:
29Phase I & TPI. Oct, 2014.
30. Toxicity Probability Intervals Limitations(?)Toxicity Probability Intervals Limitations(?)
Toxicity rates are modeled independently
Monotone dose-toxicity curve imposed at the
d f th t dend of the study
Need to define 1 and 2
30Phase I & TPI. Oct, 2014.
31. mTPI: Example CalculationsmTPI: Example Calculations
What do you need to Implement the method:y p
Software
Define max sample size
Define Pstop threshold
Define (target toxicity)
31Phase I & TPI. Oct, 2014.
Define 1 and 2
33. Concluding RemarksConcluding Remarks
mTPI is a middle ground between up-and-down
designs and model based designsg g
mTPI is easy to implement
O ti ll t d t d Operationally easy to understand
Is flexible
Does not require software while trial is ongoing
Has good operating characteristics
33Phase I & TPI. Oct, 2014.
Has good operating characteristics