The Effect of Informative Letters on the Prescription and Receipt of Seroquel
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ClinicalTrials.gov Identifier: NCT02467933 |
Recruitment Status :
Completed
First Posted : June 10, 2015
Last Update Posted : August 9, 2021
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Condition or disease | Intervention/treatment | Phase |
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Economics Fraud Delivery of Health Care Health Expenditures Centers for Medicare and Medicaid Services (U.S.) | Other: Placebo letter Other: Initial Informative letter Other: Followup Informative Letter | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 5055 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Health Services Research |
Official Title: | The Effect of Informative Letters on the Prescription and Receipt of Seroquel |
Actual Study Start Date : | April 2015 |
Actual Primary Completion Date : | January 2016 |
Actual Study Completion Date : | April 2017 |
Arm | Intervention/treatment |
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Placebo Comparator: Placebo
The placebo arm receives a placebo letter unrelated to Seroquel
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Other: Placebo letter
The placebo letter describes a new rule in Medicare that requires prescribers to enroll in Medicare |
Experimental: Informative Letter
The interventional arm prescribers receive an initial informative letter (called a comparative billing report or peer activity report) followed by 2 followup informative letters at approximately 3 month intervals.
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Other: Initial Informative letter
The intervention is a letter that describes the Seroquel prescribing activity of the individual in comparison to a peer group of similar prescribers. It highlights the fact that the prescriber's activity is highly unlike her peers. Other: Followup Informative Letter The followup informative letter is identical to the initial informative letter except it provides an update on more recent prescribing rather than a description of earlier prescribing. |
- 30-day equivalent prescribing of Seroquel treatments [ Time Frame: 9 months ]The prescribing of Seroquel over the 9 months following the initial sending of the letters. Prescribing is defined as the total "days supply" of Seroquel attributed to the prescriber, expressed in "30-day equivalents" i.e. divided by 30.
- 30-day equivalent prescribing of Seroquel treatments [ Time Frame: 3 months ]
- 30-day equivalent prescribing of Seroquel treatments [ Time Frame: 6 months ]
- 30-day equivalent prescribing of Seroquel treatments [ Time Frame: 1 year ]

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Ages Eligible for Study: | Child, Adult, Older Adult |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- General care practitioner
- Outlier with respect to the count of Seroquel prescription drug treatments relative to peer group of prescribers in 2013 and 2014
- Outlier with respect to the count of Seroquel 30-day equivalent prescription drug treatments relative to peer group of prescribers in 2013 and 2014
Exclusion Criteria:
- Deceased

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02467933
Principal Investigator: | Adam Sacarny, PhD | Columbia University |
Study Data/Documents: Study Protocol

Study protocol archived on American Economic Association Social Science Registry page.

Pre-specified analysis plan archived on American Economic Association Social Science Registry page.
Final version prior to unblinding: Version 2.0 (March 5, 2016)
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Abdul Latif Jameel Poverty Action Lab |
ClinicalTrials.gov Identifier: | NCT02467933 |
Other Study ID Numbers: |
JPAL-LETTERS-SEROQUEL |
First Posted: | June 10, 2015 Key Record Dates |
Last Update Posted: | August 9, 2021 |
Last Verified: | August 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |