Smokers would be given regular follow-up support to keep using nicotine replacement therapy to try to quit smoking.
"Most smokers would like to quit, but they often put off trying because they feel overwhelmed with how hard it is. If smokers get the chance to use nicotine replacement therapy in an ideal way, and feel their urge evaporate, they become much more confidence in their ability to quit."
The trial was a new approach because it gave smokers a chance to experience the helpful effects of nicotine replacement therapy, without having to sign up to setting a quit date, which they might not be ready to do, Dr Caldwell said.
"It's a totally non-judgmental, liberating, and empowering way to engage with smokers."
The trial was being funded by the Ministry of Health Innovation Fund.
Trial locations
* Queensgate Shopping Mall, Lower Hutt this week;
* North City Mall in February
* Palmerston North and Manawatu in March.