NIH | National Cancer Institute | NCI Wiki  

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

AnchorabstractarmsabstractarmsIn interventional studies, an arm is a group of study subjects associated with a given treatment assignment. Arm information is required for Complete trials, and is optional for Abbreviated trials. Anchor61276127 

When adding arms to a trial, you assign to them the interventions currently abstracted for the trial.

...

titleCheck out the trial before you begin abstraction

...

For instructions on abstracting interventions, refer to Abstracting Interventions.

The following rules apply to each trial:  Anchor58545854

  • There must be at least one arm/group that implies that the entire study subject population receives the same intervention.

  • The number of arms/groups added to the trial must coincide with the number indicated in the trial’s Design Details. See Abstracting Interventional Trial Design Details.

  • Every arm must have at least one assigned intervention (except for the arm type "no intervention").
  • Every intervention must be assigned to at least one arm.
  • There must be only one arm with the same combination of description and associated intervention.
  • Arm details for single-arm trials are not required.

...

Field

Definition

Label

Short name used to identify the arm or comparison group.

Type

Function of the arm. Valid types are as follows:

Include Page
Arm Types - Include v4.4
Arm Types - Include v4.4

Description

Brief description of the arm or comparison group to distinguish it from other arms/groups in the trial.

Assigned Interventions

Intervention(s) assigned to a given arm.

Footnote

Interventions imported from ClinicalTrials.gov may not match CTRP terminology.

____

Footnotes Display

Arms page

Return to top of page

Panel
titleTopic Links

Table of Contents
maxLevel4
minLevel2

Adding Arms

...

You can add one or more arms to a trial according to the trial’s design details.

How to Add Arms

...

In the drop-down lists and text fields, select or enter the appropriate information. The following table describes the fields. An asterisk (*) indicates a required field.

...

Trial Description

...

Instruction

...

Label*

...

Type the descriptive name of the arm.

...

Type*

Select the appropriate arm function. Valid values are as follows: 

...

Arm Description

Type a brief description of the arm.

...

Assignment

For

...

Return to top of page

Editing Arms

...

You can edit arm records as necessary.

How to Edit Arm Records

...

instructions

...

, refer to the following pages:

Page Tree
rootAbstracting Arms

...

Return to top of page

Deleting Arms

...

When you delete arms from a trial, you delete them from the system, and can not recover them.

How to Delete Arms

...

In the Delete column for the appropriate record, click the Delete icon.

...