Testing the Effect of a Caution for Drugs Approved on Surrogate Outcomes Alone

NCT ID: NCT00950157

Last Updated: 2010-06-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

2944 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-08-31

Study Completion Date

2009-09-30

Brief Summary

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The purpose of this study is to test whether cautions about the evidence, in this case an "open questions" statement, decreases enthusiasm for drugs that are approved on surrogate outcomes (compared to patient outcomes) alone.

Detailed Description

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Conditions

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Risk Communication

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Blinding Strategy

SINGLE

Investigators

Study Groups

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Directive "open question" statement

Survey describes the surrogate outcome of the drug along with a directive warning (i.e., stating the issue and why it matters) for drugs shown to improve surrogate outcomes.

This directive warning mentions that it is not known whether the drug will help patients feel better, and that readers should ask their doctor if there is an available drug shown to improve patient outcomes.

Group Type EXPERIMENTAL

Presentation of information on approval based on a surrogate outcome and levels of caution

Intervention Type OTHER

Presentation of information that one drug is approved on a surrogate outcome only while another drug has clinical outcomes. Participants are randomized to 1 of 3 caution (e.g. open question") statements: no open question statement, non-directive open question statement or directive open question statement.

Non-directive open question statement

Survey describes the surrogate outcome of the drug along with a non-directive warning (i.e., stating the issue only) for drugs shown to improve surrogate outcomes.

This non-directive warning mentions only that it is not known whether the drug will help patients feel better.

Group Type EXPERIMENTAL

Presentation of information on approval based on a surrogate outcome and levels of caution

Intervention Type OTHER

Presentation of information that one drug is approved on a surrogate outcome only while another drug has clinical outcomes. Participants are randomized to 1 of 3 caution (e.g. open question") statements: no open question statement, non-directive open question statement or directive open question statement.

No open question statement

Survey only describes the surrogate outcome of the drug.

Group Type EXPERIMENTAL

Presentation of information on approval based on a surrogate outcome and levels of caution

Intervention Type OTHER

Presentation of information that one drug is approved on a surrogate outcome only while another drug has clinical outcomes. Participants are randomized to 1 of 3 caution (e.g. open question") statements: no open question statement, non-directive open question statement or directive open question statement.

Interventions

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Presentation of information on approval based on a surrogate outcome and levels of caution

Presentation of information that one drug is approved on a surrogate outcome only while another drug has clinical outcomes. Participants are randomized to 1 of 3 caution (e.g. open question") statements: no open question statement, non-directive open question statement or directive open question statement.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Participants will be randomly selected from a research panel of more than 60,000 U.S. households (Knowledge Networks).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Attorney General Consumer & Prescriber Education Grant

OTHER

Sponsor Role collaborator

White River Junction Veterans Affairs Medical Center

FED

Sponsor Role lead

Responsible Party

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White River Junction VAMC

Principal Investigators

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Lisa M Schwartz, MD, MS

Role: PRINCIPAL_INVESTIGATOR

White River Junction Veterans Affairs Medical Center

Steven Woloshin, MD, MS

Role: PRINCIPAL_INVESTIGATOR

White River Junction Veterans Affairs Medical Center

References

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Schwartz LM, Woloshin S. Communicating uncertainties about prescription drugs to the public: a national randomized trial. Arch Intern Med. 2011 Sep 12;171(16):1463-8. doi: 10.1001/archinternmed.2011.396.

Reference Type DERIVED
PMID: 21911629 (View on PubMed)

Other Identifiers

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16785

Identifier Type: -

Identifier Source: org_study_id

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