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Assessing the feasibility of using nicotine replacement therapy (NRT) to enable disadvantaged parents to create a smoke-free home

A pilot randomised control trial of an intervention to reduce children’s exposure to second-hand smoke in the home in disadvantaged communities in Scotland

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN79307718
Enrollment
100
Registered
2025-05-23
Start date
2024-01-01
Completion date
Unknown
Last updated
2026-06-15

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

Conditions

Children's exposure to second-hand smoke in the home Other

Interventions

Intervention arm (Group A): Fifty participants are being randomly allocated to Group A. They receive a free, 12-week supply of nicotine replacement therapy posted to home, an information sheet on how

Sponsors

University of Stirling
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Parents, and carers and relatives 2. Aged at least 18 years old 3. Smokes in the home 4. Cares for one or more children aged or over in the home, at least 1 day per week, most days. 5. Multiple family members can participate in the study. 6. Individuals who are interested to take part but live with another adult smoker who does not wish to, are able to participate.

Exclusion criteria

Exclusion criteria: 1. Individuals who are not able to understand or speak English as their primary language are excluded given we do not have a budget to recruit, train and pay bilingual staff. 2. Individuals who use Warfarin, Theophylline or Aminophylline, Clozapine, Erlotinib, Olanzapine, Riociguat, Chlorpromazine, Flecainide, Methadone or Warfarin are excluded as NRT use would require GP monitoring. 3. Pregnant and breastfeeding women are excluded from participation as the NRT products offered are only licensed for this group of people who are making a quit attempt. 4. Participants who have a hypersensitivity to nicotine or any components of the nicotine replacement products offered in this study and listed in the product literature are excluded from taking part – we establish this by asking specific questions regarding any previous use of NRT and whether participants have any allergies.

Design outcomes

Primary

MeasureTime frame
1. Recruitment, randomisation and retention: 1.1. Number of participants screened, eligible and successfully recruited into the study, and the characteristics of non-consenting and ineligible participants (measured using a baseline data collection tool and Excel recruitment tracker) 1.2. Number of participants enrolled in the allocated recruitment time (measured using an Excel recruitment tracker) 1.3. Retention of participants in their trial arms following randomisation, the proportion engaging in 12 week follow ups, and number/reasons for dropping out (measured using an Excel recruitment tracker). 2. Intervention delivery: 2.1. The proportion of participants (a) receiving NRT and demonstrating their adherence to NRT at fortnightly follow ups; and (b) engaging in fortnightly telephone support calls (all monitored by Excel participant tracker). 3. Data collection methods: Proportion of completed baseline and follow up assessments in each arm; Number of participants successfully providing child saliva samples and measuring air quality at baseline and 12 week follow up.

Secondary

MeasureTime frame
1. Number of cigarettes smoked per day (in general and in the home) (measured by baseline and follow up questionnaires) 2. Home smoking practices (measured by baseline and follow up questionnaires) 3. Self-reported quit attempts (measured by follow up questionnaire) 4. Nicotine dependence (measured at baseline and 12 week follow up using the Heaviness of Smoking Index). 5. We are also testing the feasibility of participants collecting saliva samples from their youngest child (age 5 or over) for cotinine analysis, and collection of resource use and economic data prior to a future definitive trial.

Countries

Scotland, United Kingdom

Contacts

Public ContactRachel O'Donnell
r.c.odonnell@stir.ac.uk+44 7804499922

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Jun 21, 2026