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Timing of text message prompts to increase trial participant response to postal questionnaires in UK-FROST

Timing of text message prompts to increase trial participant response to postal questionnaires in UK-FROST: an embedded retention trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN16642368
Enrollment
300
Registered
2016-07-22
Start date
2016-07-18
Completion date
Unknown
Last updated
2022-08-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Frozen shoulder (adhesive capsulitis) Musculoskeletal Diseases

Interventions

Text messages will be sent in addition to the initial mailing out of a letter with the patient questionnaire at 3 months follow-up. Intervention group: In the pre-notification group,
so please help by returning it as soon as you can. Thanks.' Control group: In the post-notification group, messages will be sent four days after questionnaires are sent. 'UK FROST Tri
so please help by returning it as soon as you can. Thanks’

Sponsors

South Tees NHS Foundation Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Participants enrolled into the UK FROST trial 2. Access to a mobile telephone 3. Provided consent to be contacted by text message

Exclusion criteria

Exclusion criteria: Patients not consenting to be contacted on their mobile telephone

Design outcomes

Primary

MeasureTime frame
The proportion of participants who return a valid questionnaire at the three month follow-up. We define a valid questionnaire as one containing a completed response for at least the primary outcome questionnaire (The Oxford Shoulder Score) at the three month follow-up.

Secondary

MeasureTime frame
1. Time to questionnaire return (number of days between the questionnaire being mailed out to participants and it being recorded as returned) 2. The proportion of patients requiring at least one return reminder notice (a letter at 2 and 4 weeks and a telephone call 6 weeks following non­-return)

Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026