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American Indian and Alaska Native (AI/AN) communities experience a disproportionate burden of substance use disorders (SUDs) alongside persistent barriers to culturally responsive care and research participation. Despite this need, AI/AN populations remain underrepresented in substance use research, in part due to historical and ongoing systemic inequities, including research practices that have not adequately respected Tribal sovereignty or incorporated Indigenous knowledge systems. This commentary synthesizes research conducted within the National Institute on Drug Abuse (NIDA) Clinical Trials Network (CTN) focused on AI/AN communities, identifies key lessons learned from this body of work, and offers recommendations for future research.

First, we provide an overview of CTN-supported studies involving AI/AN populations, highlighting both the diversity of substance use patterns across communities and the feasibility of conducting rigorous, culturally responsive research. Second, we synthesize lessons learned from these studies and related literature, including the importance of long-term relationship building, the need for culturally responsive research frameworks, structural barriers to implementation, and workforce and infrastructure challenges. Third, we present recommendations for the field, emphasizing the central role of community-based participatory research (CBPR) and Tribal participatory research (TPR), the integration of Indigenous knowledge systems, and the importance of Tribal data sovereignty and community-led dissemination.

Collectively, this commentary argues that sustainable progress in addressing SUDs among AI/AN populations requires a fundamental shift toward community-engaged, culturally responsive, and equity-focused research partnerships. The experiences of the CTN AI/AN Special Interest Group demonstrate that such approaches are not only feasible but essential for advancing both scientific knowledge and community health.

Related protocols: CTN-0020-A-1, CTN-0033-Ot-1, CTN-0033-Ot-2, CTN-0033-Ot-3, CTN-0033-Ot-4, CTN-0033-Ot-5, CTN-0044-A2, CTN-0078-Ot, CTN-0096, CTN-0096-A-1, CTN-0118, CTN-0123, CTN-0129

To address the need for additional data regarding alcohol and drug use in American Indian/Alaska Native (AI/AN) communities, the National Drug Abuse Treatment Clinical Trials Network (CTN) funded several projects that developed collaborative research partnerships with AI/AN communities. As part of this larger project, researchers in the CTN’s Ohio Valley Node investigated substance use patterns and associated issues for American Indian substance use treatment clients at an urban, non-Native program in the Northern Plains (CTN-0033-Ot-4).

One aim of the overall project was to gain the perspectives of American Indians seeking treatment for methamphetamine and other substance use on issues related to treatment and the personal impact of use. This aim was met in two ways: first, by summarizing intake data from the participating clinic, and second, by conducting focus groups with American Indians in treatment to gain perspectives from 152 clients (65% male, 35% female; mean age 30 years). Another aim of the overall project was to gain the perspectives of urban treatment providers on issues of concern in providing treatment services for methamphetamine and other substance use with AIs; this aim was accomplished by conducting a focus group with treatment providers.

Conclusions: Resource-related barriers were prominently mentioned by the focus groups and questionnaire, particularly logistical issues associated with accessing care in this geographically dispersed region. Recommendations from the focus groups involved increasing resources for urban American Indians and addressing cultural gaps. Findings presented here will help fill the knowledge gap around barriers to treatment for urban American Indian substance users, better informing decisions in urban treatment programs about potential methods to increase access to care for this population and helping to maximize existing resources.

Related protocols: CTN-0033-Ot-4

This is the Results Article for CTN-0033-Ot-4.

Because few data exist on substance abuse rates in American Indian (AI) communities, the Methamphetamine and Other Drug project (CTN-0033) was developed and implemented by five nodes with NIDA’S National Drug Abuse Treatment Clinical Trials Network (CTN).

This article presents findings from AI clients in a Northern Plains, urban, non-Native substance abuse treatment setting, who were surveyed about their current and past substance use using the Addiction Severity Index – Native American Version (ASI-NAV). Alcohol and marijuana were used earlier, longer, and by more clients, followed by stimulants and prescription opioids. Most patients regularly smoked tobacco. Differences in substance use patterns were associated with age of onset and victimization. Age of onset was correlated with victimization, gender, cognitive impairment, and suicidal behavior. Despite considerable health and economic disparities, most clients found support for recovery in relationships and elements of Native culture, however no correlation was found between cultural engagement and substance use patterns or age of first use.

The finding that age of substance use initiation was lower for clients using alcohol plus illicit drugs than for alcohol-only clients helps to inform prevention efforts for AI adolescents in the Aberdeen area. Based on this finding, it appears that such efforts should start prior to age 13 and should target both alcohol and illicit drug use.

This presentation reports on protocol CTN-0033-Ot-4, an exploratory study examining the epidemiology of methamphetamine use and co-occurring problems and disorders in diverse Native American communities in the Aberdeen area of North Dakota. Information was collected from three samples of American Indians seeking treatment at an urban, non-tribal substance use treatment program in the Northern Plains. Examination of the substance use patterns and associated issues of the sample population found that alcohol was the most frequent presenting problem for treatment-seeking urban American Indians in the region, and that these clients face numerous economic and health disparities.

The importance of elements of Native culture were found to differ for some American Indians seeking treatment for substance abuse problems in urban settings, and urban treatment providers should consider cultural identification, as well as health and economic disparities, when developing individual treatment and referral plans.

Related protocols: CTN-0033-Ot-4

The Methamphetamine and Other Drugs (MOD) in American Indian and Alaska Native communities (AIAN) project grew from NIDA?s commitment to reducing health disparities with a specific emphasis on a better understanding of the epidemiology and treatment of drug abuse, and its health consequences in minority populations in general, and AIAN communities in particular. Because few data exist on methamphetamine and other drug use in AIAN communities, NIDA’s National Drug Abuse Treatment Clinical Trials Network (CTN) funded several exploratory and developmental projects in order to develop collaborative research partnerships with AIAN communities. Each participating Node has specific processes in place for reporting and disseminating research findings that require Tribal approval from its respective research partners and findings from these projects will be presented in future publications and at professional meetings — in full partnership with our community research partners.

The purpose of this brief report is to describe the process followed by each of the Nodes as they have developed their research partnerships with AIAN communities; lessons learned and recommendations for others interested in ethical research with AIAN communities are also presented.

Related protocols: CTN-0033-Ot, CTN-0033-OT-1, CTN-0033-Ot-2, CTN-0033-Ot-3, CTN-0033-Ot-4, CTN-0033-Ot-5