NCT03714971

Brief Summary

Background: Recently, the use of communication technologies and social media applications has become increasingly widespread to strengthen efforts for smoking cessation. The purpose of this study is; to assess the effect on success rate of the WhatsApp application which is embedded in the smoking cessation policlinic service delivery. Materials and Methods: A randomized controlled intervention study was conducted with 132 volunteers who were followed up at the EUTF Smoking Cessation Policlinic between March-July 2017. The intervention content based on transtheoretic model was prepared and 60 WhatsApp messages were delivered to participants for 3 months of follow up. For data collection, initial interview form and follow up form consisting sociodemographic characteristics, smoking status, medical condition and treatment, were used. The success rate at first and third months were assessed by the point-prevalence regarding the previous week. Intention-to-treat analysis was used. For secondary outcomes; number of follow-ups, change in weight and continuity of medication were evaluated. Findings: Success rate in the first month was 65.9% for intervention group and 40.9% in the control group; for the third month it was 50.0% in the intervention group and 30.7% in the control group. Being in the intervention group increased the success rate by 3,50 (1,30-9,44) times in the first month and 2,50 (1,08-6,40) times in the third month. The intervention was the only parameter effective in the two follow-up periods; the difference in success rate caused by gender, marital status and work-related social class has been eliminated after adjustment for the intervention.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
127

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2017

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2017

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2017

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2017

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

September 4, 2018

Completed
2 months until next milestone

First Posted

Study publicly available on registry

October 22, 2018

Completed
Last Updated

September 17, 2026

Status Verified

September 1, 2026

Enrollment Period

3 months

First QC Date

September 4, 2018

Last Update Submit

September 15, 2026

Conditions

Keywords

Whatsappsmoking cessationcessation service

Outcome Measures

Primary Outcomes (1)

  • Quitting success rates at the end of the 1st, 3rd and 6th month

    Quitting success rates at the end of the 1st, 3rd and 6th month of follow-up in the intervention and control groups. Quitting success rate at 1st month was calculated with point prevalence. History of cessation was based on self report and those who declared not smoked even a single puff on a cigarette at all in the past two weeks were considered as "successful" in the quitting attempt (19). The success rate at 3rd month was calculated with point prevalence. In this point, not smoking at all in total in the past ten weeks was considered "successful" in the quitting attempt. The success rate at 6th month was calculated with point prevalence. In this point, not smoking at all in total in the past 24 weeks was considered "successful" in the quitting attempt. A decrease in success rates at six months is expected in comparison with 3 months as the intervention lasts for 3 months.

    6 months

Secondary Outcomes (3)

  • The total number of follow-ups

    3 months

  • The continuity to drug,

    3 months

  • Self reported difference in weight in kilograms since the first contact

    3 months

Study Arms (2)

Receiving WhatsApp messages

EXPERIMENTAL

Among patients applying to the smoking cessation outpatient clinic between March and October 2017, \>18-year old volunteers who smoked at least one cigarette/day, using WhatsApp at least on four days of the week, accepting the 3-month follow-up were included In receiving WhatsApp messages group.

Behavioral: WhatsApp embedded in smoking cessation service

Not receiving WhatsApp messages

NO INTERVENTION

In "not receiving WhatsApp messages" group; Stratification and randomization were both used to randomly allocate participants to both arms of the study. The intervention and control groups were first stratified according to physician and then gender, and later allocated in a simple random manner. Randomization was conducted using a computer spreadsheet. Allocation according to gender was conducted regarding the 2:3 female to male ratio in the routine cessation services and stratification according to physician aimed to have a balanced distribution among the different physicians working in the same cessation unit. As the target number of participants was small, further stratification was not applied. Simple random sampling was then used to allocate participants to each group.

Interventions

The routine service delivery was ongoing as the intervention was conducted. In addition to the routine procedures in service delivery described above, WhatsApp messages were sent according to the plan.

Receiving WhatsApp messages

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Among patients applying to the smoking cessation outpatient clinic between March and October 2017,
  • \>18-year old volunteers who smoked at least one cigarette/day,
  • using WhatsApp at least on four days of the week,
  • accepting the 3-month follow-up were included in the study.

You may not qualify if:

  • people who were not 'ready to quit' according to the TTM stages of change evaluation
  • who had already quit before applying to the clinic were excluded.
  • If two or more patients were living in the same house or had applied to the clinic together, only the first of these was included and the rest were excluded from the study, as they could show the arriving messages to their friend/ partner/ relative.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ege University Faculty of Medicine Public Health Departmant

Izmir, 35100, Turkey (Türkiye)

Location

Related Publications (8)

  • Filozof C, Fernandez Pinilla MC, Fernandez-Cruz A. Smoking cessation and weight gain. Obes Rev. 2004 May;5(2):95-103. doi: 10.1111/j.1467-789X.2004.00131.x.

    PMID: 15086863BACKGROUND
  • Munoz RF, Chen K, Bunge EL, Bravin JI, Shaughnessy EA, Perez-Stable EJ. Reaching Spanish-speaking smokers online: a 10-year worldwide research program. Rev Panam Salud Publica. 2014 May-Jun;35(5-6):407-14.

    PMID: 25211569BACKGROUND
  • Prochaska JO, Velicer WF. The transtheoretical model of health behavior change. Am J Health Promot. 1997 Sep-Oct;12(1):38-48. doi: 10.4278/0890-1171-12.1.38.

    PMID: 10170434BACKGROUND
  • Cheung YT, Chan CH, Lai CK, Chan WF, Wang MP, Li HC, Chan SS, Lam TH. Using WhatsApp and Facebook Online Social Groups for Smoking Relapse Prevention for Recent Quitters: A Pilot Pragmatic Cluster Randomized Controlled Trial. J Med Internet Res. 2015 Oct 22;17(10):e238. doi: 10.2196/jmir.4829.

    PMID: 26494159BACKGROUND
  • Whittaker R, McRobbie H, Bullen C, Rodgers A, Gu Y. Mobile phone-based interventions for smoking cessation. Cochrane Database Syst Rev. 2016 Apr 10;4(4):CD006611. doi: 10.1002/14651858.CD006611.pub4.

    PMID: 27060875BACKGROUND
  • Carlson LE, Goodey E, Bennett MH, Taenzer P, Koopmans J. The addition of social support to a community-based large-group behavioral smoking cessation intervention: improved cessation rates and gender differences. Addict Behav. 2002 Jul-Aug;27(4):547-59. doi: 10.1016/s0306-4603(01)00192-7.

    PMID: 12188591BACKGROUND
  • Turner J, McNeill A, Coleman T, Bee JL, Agboola S. Feasibility of offering nicotine replacement therapy as a relapse prevention treatment in routine smoking cessation services. BMC Health Serv Res. 2013 Feb 1;13:38. doi: 10.1186/1472-6963-13-38.

    PMID: 23375024BACKGROUND
  • Durmaz S, Ergin I, Durusoy R, Hassoy H, Caliskan A, Okyay P. WhatsApp embedded in routine service delivery for smoking cessation: effects on abstinence rates in a randomized controlled study. BMC Public Health. 2019 Apr 8;19(1):387. doi: 10.1186/s12889-019-6727-z.

Related Links

MeSH Terms

Conditions

Smoking Cessation

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Masking Details
The study was designed as a single-blind study. The physicians (except the first author) were blind to the allocation to intervention or control groups and they conducted their routine smoking cessation counseling work. As long as the patient did not comment on the messages, the physicians were blind throughout the follow ups as well. After the first routine counseling, participants were informed by the first author about the study, thus they were not blind to the intervention. The analysis of the study was conducted by the first author who was not blind to the intervention/ control status of the participants. The first author could not be blind as he was to send out the WhatssApp messages. However, contact numbers of the participants were labeled with numbers (I-01 to I-44) to secure anonymity and to prevent any bias.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The study was designed as a RCT including two parallel arms: an intervention group receiving messages through WhatsApp Messenger operating on smart phones and a control group not receiving these messages, with an allocation ratio of 1:2. Both groups received the standard outpatient care of the clinic including a 45-60 minutes face-to-face individual counseling at first contact ending with the decision of treatment and quit date, and a support booklet on quitting and subsequent follow-ups by the same clinician at 1st, 2nd, 4th weeks and 3rd month after quit date, either face-to-face at the clinic or by telephone if the patient does not come to the clinic for follow-up. The study was carried out in the smoking cessation clinic of Ege University Medical School's Public Health Department.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD MD, research asistant

Study Record Dates

First Submitted

September 4, 2018

First Posted

October 22, 2018

Study Start

March 1, 2017

Primary Completion

June 1, 2017

Study Completion

October 1, 2017

Last Updated

September 17, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will not share

Locations