Cannabis for PTSD: MAPS’ MJP2 Trial Approved

In a pivotal achievement for mental health and cannabis research, the Multidisciplinary Association for Psychedelic Studies (MAPS) has overcome substantial regulatory barriers to advance its Phase 2 clinical trial, known as MJP2. This groundbreaking study examines the effects of smoked and vaporized cannabis on post-traumatic stress disorder (PTSD). After years of rigorous advocacy, scientific preparation, and navigating complex regulatory hurdles, including a critical Formal Dispute Resolution Request (FDRR) with the FDA’s Division of Psychiatry Products (DPP), this milestone represents a significant step forward for cannabis research.

This approval not only permits the examination of cannabis use under real-world conditions but also establishes a precedent for future research in cannabis and psychedelics, promising a transformative impact on mental health therapies.

The journey to secure approval for the MJP2 clinical trial has been a challenging one. Initially submitted in March 2021, the trial faced intense scrutiny from the FDA’s Division of Psychiatry Products, which issued five Clinical Hold letters between 2021 and 2023. Concerns centered on the safety of smoked and vaporized cannabis, THC dosing standards reflective of real-world use, and the inclusion of cannabis-naive participants.

To address these concerns, MAPS engaged in extensive dialogue with the FDA, including a Type A meeting in June 2023 and a Complete Response submission in November 2023. Despite MAPS’ detailed responses and efforts, the FDA maintained its hold on the trial.

In August 2024, MAPS escalated the matter through a Formal Dispute Resolution Request (FDRR) to the FDA’s Office of Neuroscience. Citing robust scientific literature, MAPS argued that the study’s design posed no “unreasonable and significant risk” to participants. They emphasized the study’s importance in addressing critical gaps in cannabis research, particularly as cannabis use grows under state legalization frameworks.

The FDA’s decision to approve the MJP2 trial is a major victory, allowing MAPS to proceed with a study designed to mirror real-world cannabis use. Key features of the trial include:

This approach makes the study uniquely applicable to the real-world experiences of individuals with PTSD, particularly veterans, providing critical insights into how cannabis might alleviate symptoms in everyday settings.

The MJP2 trial is specifically designed to address the needs of veterans with PTSD. Funded by a $12.9 million grant from Michigan’s Cannabis Regulatory Agency, the study will enroll 320 veterans. Its primary objective is to evaluate the safety and efficacy of inhaled cannabis, while also exploring its potential to mitigate PTSD symptoms.

By prioritizing veterans—a demographic disproportionately affected by PTSD—the study seeks to provide robust data on cannabis’s therapeutic benefits and risks. This research is urgently needed to guide public health policies and offer better treatment options for individuals living with trauma.

The approval of the MJP2 trial marks a critical step forward not only for cannabis research but also for the broader field of alternative mental health treatments. By successfully challenging outdated regulatory frameworks, MAPS has paved the way for other researchers to design studies that reflect real-world conditions.

MAPS has a long history of driving innovation in mental health research. Over the past 35 years, the organization has been instrumental in advancing MDMA-assisted therapy for PTSD, helping to establish psychedelics as a promising area of mental health treatment. With the MJP2 trial, cannabis could join psychedelics as a transformative tool in addressing complex mental health conditions.

While MAPS celebrates this milestone, the organization recognizes that significant challenges remain. Regulatory barriers, limited funding for cannabis research, and lingering societal stigma around cannabis and psychedelics continue to pose obstacles. Despite these challenges, MAPS remains steadfast in its mission to conduct rigorous scientific research and advocate for evidence-based policy reforms.

The MJP2 trial represents a critical opportunity to expand understanding of cannabis’s effects on PTSD. By illuminating both its benefits and risks, MAPS aims to foster a more informed, compassionate approach to mental health care.

MAPS invites the public to support their groundbreaking work. Donations and advocacy play a crucial role in breaking down barriers to research and ensuring studies like MJP2 can continue to advance the field of mental health treatment.

For more information about MJP2 and other MAPS initiatives, visit the MAPS website. Together, we can contribute to a future where evidence-based mental health treatments are accessible to all, including the many veterans who stand to benefit from innovative therapies like cannabis and psychedelics.