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What Works to Get the Elderly Vaccinated Against COVID-19? Experimental Evidence From India

Primary Purpose

Aging, Covid19

Status
Completed
Phase
Not Applicable
Locations
India
Study Type
Interventional
Intervention
Information
Buddy
Gossip intervention
Information assigned in community
Buddy assigned in community
Sponsored by
National Bureau of Economic Research, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional other trial for Aging

Eligibility Criteria

55 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • At least 55 years of age
  • Has phone number

Exclusion Criteria:

- Not part of the experiments registered under protocol IDs 223749 or 172020

Sites / Locations

  • JPAL SA at IFMR

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Community receives buddy and gossip treatment, individual informed directly (arm (1))

Community receives buddy and gossip treatment, individual not informed directly (arm (2))

Community receives gossip treatment, individual informed directly (arm (3))

Community receives gossip treatment, individual not informed directly (arm (4))

Community receives buddy treatment, individual informed directly (arm (5))

Community receives buddy treatment, individual not informed directly (arm (6))

Community receives information, individual informed directly (arm (7))

Community receives information, individual not informed directly (arm (8))

Arm Description

(i) Individual elder given vaccination information. (ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated. (iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.

Individual elder lives in community with elders in arm (1).

(i) Individual elder given vaccination information. (ii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders.

Individual elder lives in community with elders in arm (3).

(i) Individual elder given vaccination information. (ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.

Individual elder lives in community with elders in arm (5).

Individual elder given vaccination information.

Individual elder lives in community with elders in arm (7).

Outcomes

Primary Outcome Measures

Received at least one shot
Elders asked on phone call if they have received zero, one, or two doses of COVID-19 vaccine. Outcome takes the value of 1 if they received at least one shot, and 0 otherwise.
Received two shots
Elders asked on phone call if they have received zero, one, or two doses of COVID-19 vaccine. Outcome takes the value of 1 if they received two shots, and 0 otherwise.

Secondary Outcome Measures

Full Information

First Posted
April 28, 2021
Last Updated
March 27, 2023
Sponsor
National Bureau of Economic Research, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT04870593
Brief Title
What Works to Get the Elderly Vaccinated Against COVID-19? Experimental Evidence From India
Official Title
What Works to Get the Elderly Vaccinated Against COVID-19? Experimental Evidence From India
Study Type
Interventional

2. Study Status

Record Verification Date
March 2023
Overall Recruitment Status
Completed
Study Start Date
April 17, 2021 (Actual)
Primary Completion Date
September 30, 2022 (Actual)
Study Completion Date
September 30, 2022 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
National Bureau of Economic Research, Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
COVID-19 poses a substantial risk to elderly populations; understanding how to get elders vaccinated against the virus is therefore a policy priority. An experiment with elders in Tamil Nadu, India will be used to evaluate interventions policymakers might use to raise vaccination rates amongst the elderly. The particular interventions being tested are: calling elders to inform them about vaccination; encouragement of a "buddy system," whereby elders are accompanied to the vaccination site by another adult who could also get the vaccine; and seeding vaccination information with "gossips," individuals who elders identify as being good at spreading information in the elders' communities. The interventions are phone-based, and can be implemented quickly and at low cost. This makes them promising strategies the Tamil Nadu government and other governments could use to vaccinate elderly populations against COVID-19.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Aging, Covid19

7. Study Design

Primary Purpose
Other
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
3006 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Community receives buddy and gossip treatment, individual informed directly (arm (1))
Arm Type
Experimental
Arm Description
(i) Individual elder given vaccination information. (ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated. (iii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders and to encourage their communities to use the buddy system to get elders vaccinated.
Arm Title
Community receives buddy and gossip treatment, individual not informed directly (arm (2))
Arm Type
Experimental
Arm Description
Individual elder lives in community with elders in arm (1).
Arm Title
Community receives gossip treatment, individual informed directly (arm (3))
Arm Type
Experimental
Arm Description
(i) Individual elder given vaccination information. (ii) Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders.
Arm Title
Community receives gossip treatment, individual not informed directly (arm (4))
Arm Type
Experimental
Arm Description
Individual elder lives in community with elders in arm (3).
Arm Title
Community receives buddy treatment, individual informed directly (arm (5))
Arm Type
Experimental
Arm Description
(i) Individual elder given vaccination information. (ii) Individual elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
Arm Title
Community receives buddy treatment, individual not informed directly (arm (6))
Arm Type
Experimental
Arm Description
Individual elder lives in community with elders in arm (5).
Arm Title
Community receives information, individual informed directly (arm (7))
Arm Type
Experimental
Arm Description
Individual elder given vaccination information.
Arm Title
Community receives information, individual not informed directly (arm (8))
Arm Type
Experimental
Arm Description
Individual elder lives in community with elders in arm (7).
Intervention Type
Behavioral
Intervention Name(s)
Information
Intervention Description
Elder informed about vaccination.
Intervention Type
Behavioral
Intervention Name(s)
Buddy
Intervention Description
Elder encouraged to get vaccinated using "buddy system," whereby he/she is accompanied to the vaccination site by another adult who could also get the vaccine. A potential buddy also given vaccination information and encouraged to help the elder get to the vaccination site so they could both be vaccinated.
Intervention Type
Behavioral
Intervention Name(s)
Gossip intervention
Intervention Description
Members of elder's community asked who in the community is good at spreading information. These "gossips" then asked to spread information about vaccination of elders. If buddy intervention assigned in community, gossips also asked to encourage their communities to use the buddy system to get elders vaccinated.
Intervention Type
Behavioral
Intervention Name(s)
Information assigned in community
Intervention Description
Information intervention assigned for other elders in community.
Intervention Type
Behavioral
Intervention Name(s)
Buddy assigned in community
Intervention Description
Buddy intervention assigned for other elders in community.
Primary Outcome Measure Information:
Title
Received at least one shot
Description
Elders asked on phone call if they have received zero, one, or two doses of COVID-19 vaccine. Outcome takes the value of 1 if they received at least one shot, and 0 otherwise.
Time Frame
8 weeks after intervention
Title
Received two shots
Description
Elders asked on phone call if they have received zero, one, or two doses of COVID-19 vaccine. Outcome takes the value of 1 if they received two shots, and 0 otherwise.
Time Frame
8 weeks after intervention

10. Eligibility

Sex
All
Minimum Age & Unit of Time
55 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: At least 55 years of age Has phone number Exclusion Criteria: - Not part of the experiments registered under protocol IDs 223749 or 172020
Facility Information:
Facility Name
JPAL SA at IFMR
City
Chennai
State/Province
Tamil Nadu
Country
India

12. IPD Sharing Statement

Learn more about this trial

What Works to Get the Elderly Vaccinated Against COVID-19? Experimental Evidence From India

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