Can Attachment-Based Therapy Help Teens With Cannabis Use?

Teen Cannabis Use Disorder: Why Emotional Support Matters

When an adolescent struggles to control cannabis use, the most visible issue is consumption. The less visible questions may be just as important: What happens before they use? What feelings are they trying to manage? Who can they turn to when those feelings become overwhelming?

A new pilot randomized trial of TIMCA, an integrative psychotherapy for adolescents with cannabis use disorder, explores treatment built around these questions.¹ The approach combines established counselling techniques with work on emotional coping and relationships between adolescents and their parents.

The findings offer a reason to investigate further, rather than evidence of a breakthrough. Participants receiving TIMCA showed several encouraging changes, but the treatment did not demonstrate statistically significant advantages over usual care. Its broader contribution is a practical framework for considering recovery as both a change in cannabis consumption and an opportunity to strengthen everyday sources of support.

What Cannabis Use Disorder Means for Adolescents

Cannabis use disorder involves a pattern of consumption associated with impairment or distress. It can include difficulty cutting back, continued use despite problems, and cannabis taking priority over other activities. Frequency alone does not establish the diagnosis, although frequent use can be an important warning sign.

For adolescents, assessment also needs to consider school, friendships, family life, and mental health. Two young people with similar consumption patterns may have different reasons for using and different obstacles to changing their behaviour.

A 2026 Ontario study of adolescent cannabis use and psychological distress examined these overlapping concerns, including reports of using cannabis to cope with mental health problems. Such population research cannot explain every individual experience, but it reinforces the value of asking about the purpose cannabis serves.

That question creates an opening for treatment. If consumption has become a response to distress, reducing it may require helping the adolescent develop other responses they can realistically use.

How TIMCA Combines Cannabis Treatment and Family Support

The French trial recruited 39 adolescents from two outpatient addiction services in the Paris metropolitan area. Their average age was 17.2 years. Nineteen were assigned to TIMCA and 20 to treatment as usual. Two participants in usual care withdrew immediately after randomization, leaving 37 in the modified intention-to-treat analysis.

Both treatments comprised ten weekly sessions. Usual care incorporated motivational interviewing and cognitive behavioural therapy, with parental involvement determined individually. TIMCA incorporated those approaches alongside a structured attachment-based component.

Motivational interviewing helps people explore mixed feelings about change. Cognitive behavioural therapy examines connections between situations, thoughts, feelings, and actions, while developing practical coping strategies. Attachment-focused work adds attention to how adolescents seek support and respond to difficulties in important relationships.

Supporting Independence While Maintaining Connection

Adolescence brings a gradual shift toward independence and greater investment in peers and romantic relationships. TIMCA considers how distress during this transition may interact with cannabis use. Individual sessions explore emotionally difficult situations and practise alternative ways to express needs and manage distress.

Parent-adolescent sessions aim to improve the caregiving support around the young person. The purpose is not to assign responsibility for the disorder to parents. It is to explore whether those relationships can become more useful sources of stability during recovery.

The approach suggests a constructive possibility: independence and parental support can develop together. An adolescent can gain responsibility for their choices while learning that asking for help does not undermine that independence.

What the Pilot Cannabis Treatment Trial Found

Researchers assessed participants at baseline, during treatment, after treatment, and one month later. Measures covered cannabis consumption, attachment security, emotional regulation, anxiety, and depressive symptoms. Urine testing provided an additional measure of cannabis use.

The TIMCA group reported reductions in cannabis consumption and depressive symptoms, alongside improvements in some emotional and relational measures. However, the distinction between improvement within a group and superiority over another treatment is essential.

A statistically significant change in TIMCA, paired with a nonsignificant change in usual care, does not establish that TIMCA worked better. Demonstrating that requires a direct comparison between the groups. Here, those comparisons did not identify significant differences.

The appropriate interpretation is that TIMCA appears deliverable and acceptable in this setting, with exploratory signals that justify further testing. The small sample also means the trial cannot reliably rule out a useful advantage.

Why Staying Engaged Is Part of Treatment Success

Before a therapy can help, adolescents need to attend and remain involved. MyCannabis previously examined why teens leave cannabis treatment, highlighting how treatment completion depends on circumstances extending beyond the counselling room.

TIMCA researchers reported high adherence and engagement, including participation in family sessions. That matters as a feasibility finding, although a small specialist trial cannot show that the same engagement would occur across routine services.

The useful next question is whether a structured focus on relationships helps adolescents experience treatment as relevant to their lives. A programme that discusses conflict, loneliness, or difficulty asking for support may connect with problems they already recognize, even when they remain uncertain about changing cannabis use.

Services could investigate engagement through several practical measures:

• Whether adolescents feel able to discuss consumption honestly.
• Whether families can attend and participate consistently.
• Whether coping skills remain useful after sessions end.

These measures would complement consumption outcomes. They would also help identify why a programme succeeds or where it needs adjustment.

Building Coping Skills That Work Outside Therapy

The most useful extension of TIMCA is the idea that recovery skills must work in the settings where cannabis use occurs. Recognizing an emotional trigger during a session is valuable, but the harder task is responding differently during an argument, after disappointment, or when peers are using.

Consider a hypothetical adolescent who uses cannabis after family conflict. Treatment might help them recognize escalating distress, ask for a pause, and return to the conversation later. Parents might practise responding without turning disclosure into an immediate confrontation. These are illustrations of the approach, not outcomes established by the trial.

MyCannabis coverage of teen cannabis prevention and social media provides another reminder that adolescent behaviour develops within a wider social environment. Treatment planning can consider peer relationships and online routines without assuming either caused the disorder.

Family involvement also requires individual judgment. The trial does not establish that joint sessions are suitable for every adolescent. Confidentiality, family safety, caregiver availability, and the young person’s comfort should shape how support is organized.

How TIMCA Fits the Wider Cannabis Treatment Evidence

TIMCA builds on approaches already used in substance use care. A 2025 clinical practice guideline for adolescent substance use treatment includes motivational interviewing combined with cognitive behavioural therapy among suggested interventions for illicit drug disorders. That supports evaluating TIMCA as an addition to an existing therapeutic foundation.

A 2025 review of psychosocial cannabis treatments also reported benefits for some interventions, while emphasizing uncertainty in the evidence. Its broader population should not be treated as a direct test of adolescent attachment-focused therapy.

The next TIMCA trial needs a larger sample, longer follow-up, and therapists independent of the programme’s developers. It should examine whether emotional and relational improvements precede changes in consumption, rather than assuming they explain them. More detailed measurement of cannabis exposure would also help, since counting joints does not capture differences in potency or size.

A Constructive Direction for Teen Cannabis Recovery

TIMCA does not yet establish a better treatment for adolescent cannabis use disorder. It does offer a structured way to explore an important possibility: recovery may become more manageable when young people gain both practical coping skills and dependable relationships.

That is a useful direction for research and service design. Effective care needs to measure cannabis outcomes carefully while remaining attentive to the adolescent living behind those numbers. Helping young people manage distress, communicate needs, and stay engaged in treatment gives future trials meaningful goals to test.

References:

¹ Bou Nassif, Y., Richter, J., Kheirallah, L., Farquhar, F., Gonnod, A., Cros, C., Benyamina, A., Varescon, I., & Rahioui, H. (2026). A pilot randomized controlled trial of an integrative psychotherapy incorporating an attachment-based approach for adolescents with cannabis use disorder (TIMCA). Addictive Behaviors Reports. Advance online publication. https://doi.org/10.1016/j.abrep.2026.100758