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OpenTrials
Completed

NCT Number: NCT05612386

Planning Message Recommending Same Time/Location as Last Vaccine

This experiment is part of a megastudy with a total of ten experimental conditions and a holdout control condition to which patients will be randomly assigned. The focal comparison in this experiment is between a message suggesting the same day of the week, at the same time of day, and at the same pharmacy location as their last vaccination and a control message telling patients that an updated COVID booster vaccine is waiting for them. The intervention testing if text messages encouraging vaccination by suggesting patients receive a shot on the same day of the week, at the same time of day, and at the same pharmacy location as their last vaccination will produce more vaccinations than otherwise identical messages.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Exclusion criteria

  • The patient unsubscribed from texts before the send date and time of the patient's SMS/MMS message
  • The patient received a bivalent COVID booster before the send date and time of the patient's SMS/MMS message.

Treatment and study plan

COVID Booster text messages

Behavioral

Participants will receive text messages per descriptions listed in the arms.

Primary outcomes

  1. COVID bivalent booster receipt

    Time frame: During the 30 days after receiving the SMS/MMS intervention

    Whether patients receive a bivalent COVID booster at the pharmacy in question

Secondary outcomes

  1. COVID bivalent booster receipt

    Time frame: 60 days after receiving the SMS/MMS intervention

    Whether patients receive a bivalent COVID booster at the pharmacy in question

  2. COVID bivalent booster receipt

    Time frame: 90 days after receiving the SMS/MMS intervention

    Whether patients receive a bivalent COVID booster at the pharmacy in question

Sponsors and collaborators

Lead sponsor

University of Pennsylvania

Other

Registry information

Important dates

Study start
2022
Primary completion
2022
Study completion
2023
First posted
Nov 10, 2022
Registry last updated
Mar 3, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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