Changing the response_label

I have some variables (A, B and C) that shared the same response_label.
For one variable (A), I need to add a response_option (and response_value) but I don't want to add it for the other variables. So for variable A, I need to change the response_label to add the new option.

The problem is that you can't do that apparently in OC:
The properties ITEM_NAME, DATA_TYPE, and RESPONSE_LABEL cannot be changed after the CRF is created.

But I tried it on my test environment and it seems to work...

Can you tell me if eventually it's ok to do it or not ? What are the consequences on the extraction for instance ?

Version 1
A,B,C shared the label "grade"; value 1,2,3; coded 1,2,3
Version 1.1
For A (and only for A), I want to add 4:
So I created grade2, value 1,2,3,4; coded 1,2,3,4 and apply it to variable A

I then migrate all v1 to v1.1. Will I lose or miss something for variable A during the extraction or not ?

If I can't do that, is there another solution ?

Thank you,



  • RCHENURCHENU Posts: 179

    I will really appreciate it if people from OC could share their thought about it ! :-)

    Thank you,


  • RCHENURCHENU Posts: 179
    One more try :wink: !
    It would be great if someone from OpenClinica could answer my question or if it's not clear enough to be answered.
    I have to update very soon my CRFs and I have to know what is possible or not to communicate after to the team.

    Thanks a lot.

  • ccollinsccollins Posts: 364 admin
    via Email
    Hi Romain,
    I don't think it is allowed. A good test would would be to set up a form
    with two fields & same response label, add some patient data, then
    upversion one to a separate response label with entirely different set of
    codes, and enter more data. then try to either migrate one of the original
    event CRFs and/or do an extract and report what you see.
  • RCHENURCHENU Posts: 179
    Thank you Cal for your answer. I'm going to try what you propose.

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