Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Trial Comparing Different Methods of Support With Stopping Smoking Offered Through The National Health Service (NHS) Smoking Helpline
Brief Summary: This study shall determine whether or not proactive telephone support for smoking cessation delivered to quitline callers is more effective than standard 'reactive' provision and whether or not the offer of a voucher for a cost free supply of nicotine replacement therapy (NRT) has any additional impact on smoking cessation rates achieved by behavioural interventions.


Options:
A: Arm Label: Standard support; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Reactive (standard) telephone support | Arm Label: Proactive telephone support; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Proactive telephone support | Arm Label: Standard support & offer NRT; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Reactive (standard) telephone support, Drug: Offer of voucher for cost-free Nicotine Replacement Therapy | Arm Label: Proactive support & offer NRT; Type: ACTIVE_COMPARATOR; Interventions: Behavioral: Proactive telephone support, Drug: Offer of voucher for cost-free Nicotine Replacement Therapy | Intervention Type: BEHAVIORAL; Name: Proactive telephone support; Assigned to Arm(s): Proactive support & offer NRT, Proactive telephone support | Intervention Type: BEHAVIORAL; Name: Reactive (standard) telephone support; Assigned to Arm(s): Standard support, Standard support & offer NRT | Intervention Type: DRUG; Name: Offer of voucher for cost-free Nicotine Replacement Therapy; Assigned to Arm(s): Proactive support & offer NRT, Standard support & offer NRT
B: Arm Label: Original contingent vouchers schedule; Type: EXPERIMENTAL; Interventions: Behavioral: Voucher-based incentives | Arm Label: Revised contingent vouchers schedule; Type: EXPERIMENTAL; Interventions: Behavioral: Voucher-based incentives | Arm Label: Non-contingent vouchers schedule; Type: SHAM_COMPARATOR; Interventions: Behavioral: Voucher-based incentives | Intervention Type: BEHAVIORAL; Name: Voucher-based incentives; Assigned to Arm(s): Non-contingent vouchers schedule, Original contingent vouchers schedule, Revised contingent vouchers schedule
C: Intervention Type: BEHAVIORAL; Name: Nicotine Replacement Therapy; Assigned to Arm(s): N/A
D: Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: Computerized brief intervention (5As); Type: EXPERIMENTAL; Interventions: Behavioral: Computer-delivered brief intervention (5As) | Arm Label: Contingency Management Alone; Type: EXPERIMENTAL; Interventions: Behavioral: Contingency Management | Arm Label: Combined Brief Intervention and CM; Type: EXPERIMENTAL; Interventions: Behavioral: Computer-delivered brief intervention (5As), Behavioral: Contingency Management | Intervention Type: BEHAVIORAL; Name: Computer-delivered brief intervention (5As); Assigned to Arm(s): Combined Brief Intervention and CM, Computerized brief intervention (5As) | Intervention Type: BEHAVIORAL; Name: Contingency Management; Assigned to Arm(s): Combined Brief Intervention and CM, Contingency Management Alone

Answer: A