When you freeze or lock a form or case report book, the following rules are in place:
Rules for freezing and locking
|
Activity allowed? |
Frozen CRF |
Frozen case report book |
Locked CRF |
Locked case report book |
|---|---|---|---|---|
|
Add/update subject data |
No unless allowed.* |
No unless allowed.* |
No |
No |
|
Add/update comments |
No unless allowed.* |
No unless allowed.* |
No |
No |
|
Open queries |
No unless allowed.* |
No unless allowed.* |
No |
No |
|
Answer queries |
Yes, but can only change data value only if allowed.* |
Yes, but can only change data value only if allowed.* |
No |
No |
|
Close queries |
No unless allowed.* |
No unless allowed.* |
No |
No |
|
Mark SV ready |
Yes |
Yes |
No |
No |
|
Source verify |
No unless allowed.* |
No unless allowed.* |
No |
No |
|
Sign CRF |
Yes |
Yes |
Yes |
Yes |
|
Sign case report book |
Yes |
Yes |
Yes |
Yes |
* Sponsor users can perform this activity only if the study has been configured to allow sponsor users to update forms after they are frozen.
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