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study conduct

                        STUDY CONDUCT

Patient —➤site—➤assessments–➤enter edc

Company project manager or clinical operation manager send SHIPPING MANIFEST to

lab(vendor)

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lab entry data in acquisition form

Lab—➤send test tubes—➤site

                                         🠟

                                       Pk samples–➤lab—➤analyze—➤send data to data manager

        Lab 2 types

  •  Central 

  •  Local 

CENTRAL:   Reference range values: lab maintain their own lab range values

Set  up:  acquisition form =site data in vendor database

LOCAL:  lab specific, site specific, sponsor specific

Set up:   they do not maintain acquisition form

         Data transfer specifications

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     Version

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    Table of contents

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    Contact details

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    Purpose

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    Data file structure 

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    Data file transfer

Frequency = weekly or monthly

Data transfers will be cumulative or incremental

Date of file

File naming conventions=blinded,unblinded


Data deliver method 

     email,sftp(secure file portal) like passwords or client web portal 

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    Test transfer

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    Data quality 

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    Data receipt

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    Data file contents

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    Mapping tables =visit dates, codes

          Data transfers:

  • Mock data from vendors, IRT, SAE     

         Data transfer agreement:

https://clinicalda.blogspot.com/2024/03/dtadata-transfer-agreement.html

       Purpose

       Type of data

         File naming conventions

         Data transfer mode 

         Data transfer type

         Frequency/Transfer frequency /schedule

  • Vendor agreements

  • Company agreements

Reconciliation :External data

  1. IRT=interactive response or randomization Technology

  2. IRT helps clinical trial sponsors & site for manage the patient & drug supply logistics—-->because =ability to offer control & flexibility while increasing efficiency

                                                                                                                                 

  1. IRT also helps to maintain blinding by making sure that specific roles in a study do not know the treatment that each patient is receiving

  2. CDM reconcile below list:                                                                                       

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    Screening date

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    Re-screening date

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    Randomization number

  • SAE reconciliation: reconcile SAE data:

Adverse event : Any effect/disease

Adverse event maybe : MILD,MODERATE,SEVERE


Serious adverse event :

https://clinicalda.blogspot.com/2024/03/sae-reconciliation.html


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    SAE →collected from→clinical trial &

  • marketed products

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    Reporting containing SAE —>case—->goes to

  • safety department—>case of adverse effect

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    During clinical trial=SAE information also received

  • through CRF or EDC—>stored in ADVERSE EVENT—>DMS

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    Stored in clinical & safety database

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    Important to match = SAE

  • with data management system—------->SAE reconciliation

              During information following information are checked:

  1. Cases found in the SAE system but not in the CDM system—->(case of adverse effect)safety system.  

  2. Cases found in the CDM system but not in the SAE system —>(adverse event)database system.

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    Death —>any case—>found only one system–>.(cases of adverse effect) adverse event 

         Need of SAE reconciliation=compare SAE with CDM

   


SAE

CDM


Less organized/defined

more organized/defined

data: eg:

Subject & investigate ID

subject,investigate well defined in study data such as age,

sex information


|

|


Collected information but collect only events

collected separately adverse event are collected event by

event passociate each problem

                            Depends                                                                 for 

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     Companies—---->reports & manual comparison—-->SAEreconclliation

                               On

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    When the reporting system has access to the underlying database 

it might be possible to do

-------------------------------->

initial match on some information such as study ID,Sub ID etc…

    Underlying database present in SAE system and CDM system.




 Depends                                                                 for                                                          

 Reconciliation issues:

  • Ex: un schedule visit

               MRI assessments

               Accession ID

         Query management:

       Query management.

In terms of clinical trials, a query is a request for clarification

from trial sponsors to researchers. Such requests are made during data review, before

database lock, and aimed at resolving errors and inconsistencies. The query management

feature facilitates communication among data managers,sponsors, and other stakeholders.

It helps faster resolve all questions.

Open queries : when site coordinator open query( seen the query)

Closed queries: when site coordinator opened ,answered query and closed query
Answered queries: when site coordinator opened and answered query

Canceled queries: when DM/biostatician/medical monitor/clinical coder enter  
query in EDC and it can be canceled by these people

Queries  prepare  in excel sheet which discrepancy is present in data(EDC)
Query posting

        DM of CRO will provide weekly metrics

         Sponsor DM will review meetrics

         Metrics: can be open query by–DM,CRA,medical reviewer

         Queries like eg:subject part,unconfirmed missed date etc..,

  • Automated query—query populate in EDC when discrepancy is entered by site coordinate–edit checks

        Manual data listing

  •  SAS programme:

  • \


  • CRO will provide data listing-sponsor will review programme listing

  •  If not possible sponsor will prepare programme listing from EDC

  • EDC listing:

  • EDC–installed modules–reporter–Data listing  STUDY -

prod–submit==production clinical review —-from:ad,cm,medical—run–DATA–download file

  • Patient identifier

  • J-review

  • Spot fire

  • illuminate

        Manual data review

  • Manual checks

  •  Ex : Compare adverse events with cocomident medication 

Apply concatenate and vlookup

  1. Create Unique ID : SUB ID 

  2. Concatenate: 

Formula: Unique ID + the variable we want to compare (Record number)

  1. Create 2 concatenate records in both the listings

  2. Vlook up: 

Formula:vlookup(first concatenate cell no 1,second concatenate cell no 2 in different listing:$ columns name of the variable we want to compare $ total no of rows/records,1,0).

  1. Review coding dictionary MEDRA and WHO drug.

     


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