Ear Acupuncture according to the NADA (National Acupuncture Detoxification Association)

This editorial presents a comprehensive review of the auriculotherapy protocol of the National Acupuncture Detoxification Association (NADA), a complementary technique developed for the treatment of substance dependence that has been used for more than three decades. The NADA protocol uses five specific points in the ear: Sympathetic, Shen Men, Kidney, Liver, and Lung, applied in a standardized manner to assist in the detoxification and recovery process of patients with substance dependence.

The history of the NADA protocol dates back to 1972-1973, when Dr. H.L. Wen of Hong Kong first reported the use of acupuncture with electrical stimulation at four body points and two auricular points to assist in opioid withdrawal syndrome. Subsequent development was led by Dr.

Michael Smith of New York, who in 1985 refined the protocol to use only auricular points. In 1988, Smith and Khan published results from 200 patients treated at Lincoln Hospital in New York over 13 years, reporting subjective successes, although without objective scientific verification at the time.

The review analyzes 27 referenced publications retrieved on PubMed up to March 2019, revealing a complex picture of scientific evidence. Subsequent studies have produced mixed results regarding the efficacy of the protocol. A 2004 Swedish study with 163 prisoners over 18 months found no significant differences compared with other methods, although there were no negative side effects. Similarly, reviews on the treatment of cocaine dependence have not been able to confirm the effectiveness of acupuncture for this type of substance abuse.

Subsequent studies have explored various applications of the NADA protocol. A 2005 Yale University study with 40 HIV-positive cocaine users did not demonstrate measurable success of acupuncture in isolation, but patients who received group therapy in addition to acupuncture showed a greater reduction in depression and anxiety. A 2011 Canadian study comparing NADA with sham acupuncture and a control found no superiority of the protocol in reducing anxiety.

Nevertheless, some applications have shown promising results. At the University of Colorado, 185 patients completed a study in which use of NADA was positively correlated with successful study completion and smoking cessation. Austrian researchers successfully used the protocol in an adolescent patient with phantom pain after osteosarcoma surgery, and German studies implemented the method in geriatric patients with major depression, observing significant pre-post treatment improvements.

A 2016 systematic review focused specifically on randomized trials using the NADA protocol for opioid use disorder found only four studies that met the inclusion criteria. The results indicated that, although the NADA protocol may not be effective in reducing acute opioid craving or withdrawal syndrome, it can be effectively used as adjuvant treatment to increase treatment retention and decrease methadone doses during detoxification and maintenance.

The applications of the NADA protocol have expanded beyond substance dependence to include anxiety disorders, major depression, impulsivity control, and even neonatal abstinence syndrome in babies of mothers with substance dependence. Recent studies suggest that the protocol may be particularly useful as a psychosocial intervention that affects the whole person, potentiating the results of other treatment modalities.

Despite its broad clinical implementation, the limitations of the scientific evidence are evident. Many studies have small samples, lack adequate control groups, or yield inconsistent results. The variability in study designs and populations investigated makes it difficult to draw definitive conclusions about the efficacy of the protocol. The clinical implications suggest that NADA may be most effective as adjuvant therapy in integrated treatment programs, particularly for improving treatment retention and reducing associated symptoms of anxiety and depression.