Acupuncture for smoking cessation: A systematic review and meta-analysis of 24 randomized controlled trials

Effects of acupuncture and nicotine patch on smoking: a multicenter, randomized, controlled, double-blind clinical trial

Aims

To evaluate the effects of acupuncture and/or nicotine patches on smoking cessation.

Methods

Eighty-eight participants were randomly allocated into four groups: acupuncture combined with nicotine patch (ACNP), acupuncture combined with sham nicotine patch (ACSNP), sham acupuncture combined with nicotine patch (SACNP), and sham acupuncture combined with sham nicotine patch (SACSNP). The primary outcome was self-reported smoking abstinence verified with expiratory Carbon Monoxide (CO) after 8 weeks of treatment. The modified Fagerstrom Test for Nicotine Dependence (FTND) score, Minnesota Nicotine Withdrawal Scale (MNWS), and the Brief Questionnaire of Smoking Urge (QSU-Brief) score were used as secondary indicators. SPSS 26.0 and Prism 9 software were used for statistical analyses.

Results

Seventy-eight participants completed the study. There were no significant differences in patient characteristics at baseline across the four groups. At the end of treatment, there was a statistically significant difference (χ2  = 8.492, p = 0.037) in abstaining rates among the four groups. However, there were no significant differences in the reduction in the number of cigarettes smoked daily (p = 0.111), expiratory CO (p = 0.071), FTND score (p = 0.313), and MNWS score (p = 0.088) among the four groups. There was a statistically significant difference in QUS-Brief score changes among the four groups (p = 0.005). There was no statistically significant interaction between acupuncture and nicotine patch.

Conclusion

Acupuncture combined with nicotine replacement patch therapy was more effective for smoking cessation than acupuncture alone or nicotine replacement patch alone. No adverse reactions were found in the acupuncture treatment process.

Clinical trial registration

http://www.chictr.org.cn/showproj.aspx?proj=61969, identifier ChiCTR2100042912.

Acupuncture and related acupoint therapies for smoking cessation: An umbrella review and updated meta-analysis

INTRODUCTION

Acupuncture and related acupoint therapies have been widely used for smoking cessation. Some relevant systematic reviews (SRs) have been published. There is a need to summarize and update the evidence to inform practice and decision-making.

METHODS

Eight databases were searched from their inception to December 2023. SRs, any randomized controlled trials (RCTs) comparing acupuncture therapies with sham acupuncture, pharmacotherapy, behavioral therapy, or no treatment, were included. The primary outcome was the abstinence rate. AMSTAR-2 was employed to assess the quality of SRs. An updated meta-analysis was conducted based on SRs and RCTs. Data were synthesized using risk ratios (RR) with 95% confidence intervals (CIs). The GRADE approach was employed to assess the certainty of the updated evidence.

RESULTS

Thirteen SRs and 20 RCTs outside of the SRs were identified. The SRs were of low or very low quality by AMSTAR-2. Sixteen (80%) RCTs were at high risk of performance bias. Eight acupuncture and related acupoint therapies were involved. The short-term (≤6 months) abstinence rate outcome was summarized as follows. Most SRs suggested that filiform needle acupuncture or acupressure had a better effect than sham acupuncture, but the findings were inconsistent. The updated meta-analysis also suggested that filiform needle acupuncture was more effective than sham acupuncture (RR=1.44; 95% CI: 1.02-2.02; I2 = 66%; low certainty; 9 RCTs, n=1358). Filiform needle acupuncture combined with acupressure was comparable to nicotine patches (RR=0.99; 95% CI: 0.74-1.32; low certainty; 6 RCTs, n= 524). Acupressure was superior to counseling (RR=1.46; 95% CI: 1.14-1.87; I2=5%; low certainty; 8 RCTs, n=595). No serious adverse events were reported in these SRs or RCTs.

CONCLUSIONS

Low certainty evidence suggests that filiform needle acupuncture and auricular acupressure appear to be safe and effective in achieving short-term smoking cessation. However, long-term follow-up data are needed.

Patient interest in acupuncture for smoking cessation: a survey

BACKGROUND/OBJECTIVE

Tobacco use remains the leading cause of preventable death in the United States. The most widely available treatment options to assist patients in smoking cessation are limited by side effects and moderate efficacy at best. Acupuncture may be an effective option for smoking cessation. The goal of this study was to establish the need for and interest in acupuncture therapy to potentially assist with smoking cessation from a patient perspective.

METHODS

We conducted a cross-sectional survey study among patients aged 18 years or older whose medical record reported current tobacco use with English as their preferred language. REDCap surveys were administered to patients during office visits and included questions regarding opinions and use of all treatments available for smoking cessation (including acupuncture) as well as perceived barriers to acupuncture treatment.

RESULTS

A total of 57 surveys were distributed, and 42 (74%) were completed. Most patients reported previous attempts at quitting (76%) and had tried a variety of treatments including nicotine replacement (45%), Chantix (varenicline; 23%), Wellbutrin (bupriopion; 19%), "cold turkey" (65%) and hypnosis (3%). No respondents reported having tried acupuncture for smoking cessation.

CONCLUSION

When comparing treatment options, patients reported more interest in acupuncture than other treatment options with a statistically significant difference in the level of interest between acupuncture and bupropion. All barriers (cost, time and effectiveness) were equally rated on a Likert-type scale with a median of 50 on a 101-point scale.

Traditional, complementary and integrative healthcare: global stakeholder perspective on WHO's current and future strategy

As the 'WHO Traditional Medicine Strategy: 2014-2023' is entering its final phase, reflection is warranted on progress and the focus for a new strategy. We used WHO documentation to analyse progress across the objectives of the current strategy, adding the role of traditional, complementary and integrative healthcare (TCIH) to address specific diseases as a dimension absent in the current strategy. Our analysis concludes on five areas. First, TCIH research is increasing but is not commensurate with TCIH use. TCIH research needs prioritisation and increased funding in national research policies and programmes. Second, WHO guidance for training and practice provides useful minimum standards but regulation of TCIH practitioners also need to reflect the different nature of formal and informal practices. Third, there has been progress in the regulation of herbal medicines but TCIH products of other origin still need addressing. A risk-based regulatory approach for the full-range of TCIH products seems appropriate and WHO should provide guidance in this regard. Fourth, the potential of TCIH to help address specific diseases is often overlooked. The development of disease strategies would benefit from considering the evidence and inclusion of TCIH practices, as appropriate. Fifth, inclusion of TCIH in national health policies differs between countries, with some integrating TCIH practices and others seeking to restrict them. We encourage a positive framework in all countries that enshrines the role of TCIH in the achievement of universal health coverage. Finally, we encourage seeking the input of stakeholders in the development of the new WHO Traditional Medicine Strategy.

Traditional Chinese medicine for smoking cessation: An umbrella review of systematic reviews and meta-analysis of randomized controlled trials

INTRODUCTION

Traditional Chinese medicine (TCM) may have special advantages in facilitating smoking cessation, but consensus on effectiveness is lacking. We aim to comprehensively review, update, and refine current evidence on TCM effectiveness and safety.

METHODS

Nine databases were searched from their inception up to 28 February 2023. Systematic reviews (SRs) and meta-analysis of TCM for smoking cessation were identified and retrieved. Additional databases and hand searches of RCTs from included SRs were performed for data pooling. Cochrane ROB tools and AMSTAR-2 were used to evaluate the methodological quality of RCTs and SRs, respectively. RCT data are presented as relative risks (RR) or mean differences (MD) with 95% confidence intervals (CI) using RevMan 5.4.

RESULTS

Thirteen SRs involving 265 studies with 33081 participants were included. Among these 265 studies, 157 were duplicates (58.36%) and 52 were non-RCTs (19.62%). Combined with the remaining 56 RCTs identified through hand searches, 88 RCTs involving 12434 participants were finally included for data synthesis. All the SRs focused on acupoint stimulation, and the majority were of low or very low quality. The methodological quality of RCTs was either unclear or high risk. For continuous abstinence rate, TCM external interventions were better than placebo in 6 months to 1 year (RR=1.60; 95% CI: 1.14-2.25; I2=27%; n=5533 participants). Compared with placebo, TCM external application was effective in reducing nicotine withdrawal symptoms, and the effect was gradually stable and obvious in the fourth week (MD= -4.46; 95% CI: -5.43 - -3.49; n=165 participants). Twelve RCTs reported adverse events as outcome indicators for safety evaluation, and no serious adverse events occurred.

CONCLUSIONS

Despite the methodological limitations of the original studies, our review suggests that TCM intervention shows potential effectiveness on the continuous abstinence rate. Extending the intervention time can enhance the effect of TCM on nicotine withdrawal symptoms. Referred to adverse events, more data for safety evaluation are required.

Real-world tobacco cessation practice in China: findings from the prospective, nationwide multicenter China National Tobacco Cessation Cohort Study (CNTCCS)

Background

Tobacco cessation is proven to be the most effective and cost-effective strategy for smokers to reduce their risk of smoking-related disease and premature death. Providing effective, efficient, safe, and patient-centred tobacco cessation treatment to reach those who need them is a significant challenge. To date, only a few nationwide studies in China have assessed the overall clinical care practice and treatment outcome of tobacco cessation.

Methods

This a prospective, nationwide, multicenter, cohort study covering all Eastern China, Northwest China, Central China, North China, Southwest China, Northeast China, and South China. Participants who were current smokers aged 18-85 years attending clinic for smoking cessation were included. All the participants were treated with 3-month cessation treatment and followed up for 3 months. Data were collected prospectively using online system. The primary outcome was 7-day point abstinence rate at 24 weeks, validated biochemically by an expired carbon monoxide level of less than 10 ppm. The participants lost to follow-up or not providing validation were included as non-abstainers.

Findings

A representative sample of 3557 participants were recruited and 2943 participants were included into this analysis. These participants had mean age of 53.05 years, and 94.8% were males, with 75.8% showing symptoms of tobacco dependence. A total of 965 (32.8%) participants were treated with Bupropion + behavioural counselling, followed by 935 (31.8%) with behavioural counselling, 778 (26.4%) with Varenicline + behavioural counselling, 135 (4.6%) with alternative treatments + behavioural counselling, and 130 (4.4%) with nicotine replacement therapy (NRT) + behavioural counselling. After 3-month treatment and 3-month follow-up, 21.74% of the participants quit smoking at 24 weeks. In the multivariable-adjusted analyses, quitting smoking was significantly associated with female, higher socioeconomic status, poor health condition, different treatment received, and less smoking intensity. The tobacco cessation treatment varied widely across different areas of China. In particular, the areas with higher usage of cessation medication were associated with better cessation treatment outcome.

Interpretation

The CNTCCS is the first large-scale nationwide cohort study of smoking cessation in China. Rich data collected from this prospective cohort study provided the opportunity to evaluate the clinical practice of tobacco cessation treatment in China.

Funding

Chinese Academy of Medical Sciences (CAMS) Initiative for Innovative Medicine (CAMS 2021-I2M-1-010), Heilongjiang Provincial Science and Technology Key Program (2022ZXJ03C02), and National Key R&D Program of China (grant no. 2017YFC1309400).

Non-pharmacological interventions for smoking cessation: analysis of systematic reviews and meta-analyses

BACKGROUND

Although non-pharmacological smoking cessation measures have been widely used among smokers, current research evidence on the effects of smoking cessation is inconsistent and of mixed quality. Moreover, there is a lack of comprehensive evidence synthesis. This study seeks to systematically identify, describe, and evaluate the available evidence for non-pharmacological interventions in smoking populations through evidence mapping (EM), and to search for best-practice smoking cessation programs.

METHODS

A comprehensive search for relevant studies published from the establishment of the library to January 8, 2023, was conducted in PubMed, Web of Science, Embase, the Cochrane Library, CNKI, CBM, Wan Fang, and VIP. Two authors independently assessed eligibility and extracted data. The PRISMA statement and AMSTAR 2 tool were used to evaluate the report quality and methodology quality of systematic reviews/meta-analyses (SRs/MAs), respectively. Bubble plots were utilized to display information, such as the study population, intervention type, evidence quality, and original study sample size.

RESULTS

A total of 145 SRs/MAs regarding non-pharmacological interventions for smoking cessation were investigated, with 20 types of interventions identified. The most commonly used interventions were cognitive behaviour education (n = 32, 22.07%), professional counselling (n = 20, 13.79%), and non-nicotine electronic cigarettes (e-cigarettes) (n = 13, 8.97%). Among them, counselling and behavioural support can improve smoking cessation rates, but the effect varies depending on the characteristics of the support provided. These findings are consistent with previous SRs/MAs. The general population (n = 108, 74.48%) was the main cohort included in the SRs/MAs. The total score of PRISMA for the quality of the reports ranged from 8 to 27, and 13 studies (8.97%) were rated as high confidence, and nine studies (6.21%) as moderate confidence, in the AMSTAR 2 confidence rating.

CONCLUSIONS

The abstinence effect of cognitive behaviour education and money incentive intervention has advantages, and non-nicotine e-cigarettes appear to help some smokers transition to less harmful replacement tools. However, the methodological shortcomings of SRs/MAs should be considered. Therefore, to better guide future practice in the field of non-pharmacological smoking cessation, it is essential to improve the methodological quality of SRs and carry out high-quality randomized controlled trials (RCTs).

Acupuncture combined with auricular acupressure for smoking cessation and its effects on tobacco dependence and smoking behavior among Hong Kong smokers: a multicenter pilot clinical study

BACKGROUND

Acupuncture combined with auricular acupressure has been used as a complementary and alternative treatment for smoking cessation in Hong Kong for over 10 years. This study aimed to investigate the success rates of smoking cessation posttreatment, and to evaluate treatment effects on tobacco dependence, smoking behavior, anxiety levels, and sleep disturbances between successful and unsuccessful quit smokers in Hong Kong.

METHODS

This prospective, multicenter clinical study conducted between September 2020 and February 2022 in Hong Kong was part of the Guangdong-Hong Kong-Macau Greater Bay Area project on smoking cessation. Thirty eligible current smokers (mean age 47.10 years; 40% female) were recruited and received a combination of standardized acupuncture and auricular acupressure treatments twice weekly for 8 weeks. The primary outcome was the success rate of smoking cessation at week 24. The secondary outcomes were the success rates of smoking cessation at weeks 8 and 16, exhaled carbon monoxide (CO) levels, and changes in scores on the Fagerström Test for Nicotine Dependence (FTND), Autonomy Over Smoking Scale (AUTOS), Hamilton Anxiety Rating Scale (HAM-A), Self-rating Anxiety Scale (SAS), and Pittsburgh Sleep Quality Index (PSQI). Adverse events were also recorded.

RESULTS

Of 30 eligible participants, 28 completed 6 or more treatment sessions; all completed follow-up assessments. At week 24, the success rate of smoking cessation was 46.67%. The successfully quit rates at weeks 8 and 16 were 36.67% and 43.33%, respectively. The overall change in mean FTND scores from baseline improved significantly from weeks 2 to 24 (P < 0.05), with the successful quit group showing significantly greater improvement between weeks 8 and 24 (P < 0.01). Compared with baseline values, there were significant reductions in mean AUTOS scores from weeks 6 to 24 (P < 0.001), with the successful quit group showing greater improvement at weeks 16 (P = 0.04) and 24 (P < 0.001). No significant changes were detected in exhaled CO levels or HAM-A, SAS, and PSQI scores. No study-related adverse events were observed.

CONCLUSIONS

Acupuncture combined with auricular acupressure could be an effective alternative treatment for smoking cessation and reduction of tobacco dependence among Hong Kong smokers. Trial registration Chinese Clinical Trial Registry, No. ChiCTR2000033650. Registered on June 7, 2020. http://www.chictr.org.cn/showproj.aspx?proj=54866.

Efficacy and safety of acupuncture combined with auricular acupressure for smoking cessation: A study protocol of a multicentre, randomized, controlled clinical trial

Background

Nicotine dependence is an addictive behavioral disease facilitated by habitually smoking cigarettes. In many countries, acupuncture and auricular acupressure have attracted growing attention as complementary or alternative treatments for smoking cessation; however, there is a lack of rigorous randomized, controlled studies evaluating the combination of these two interventions specifically for smoking cessation. The aim of this study is to evaluate the efficacy and safety of using acupuncture combined with auricular acupressure (A&amp;AA) to increase the rates of smoking cessation and ultimately reduce the rates of relapse.

Methods

This is a multicentre, prospective, parallel, randomized, controlled trial. A total of 360 patients with severe nicotine dependence will be randomized into test (A&amp;AA) or control (nicotine replacement therapy, NRT) groups. The test group will be treated with A&amp;AA twice weekly, while the control group will use an NRT patch daily. All treatments will be administered for 8 weeks, with a follow-up period of 4 months. The primary outcome will be the smoking abstinence rate at week 24, with a combined safety assessment. The secondary outcomes will be smoking cessation rates at other timepoints, saliva cortisone test results, and scores on the Fagerstrom Test for Nicotine Dependence, the Autonomy over Tobacco Scale, the Hamilton Anxiety Rating Scale, the Self-rating Anxiety Scale, and the Pittsburgh Sleep Quality Index. The cost of treatment will also be used to evaluate the economic effects of different smoking cessation interventions. Statistical analysis on the data collected from both the intention-to-treat (all randomly assigned patients) and per-protocol (patients who complete the trial without any protocol deviations) patients, will be performed using the statistical software package, IBM SPSS 27.0.

Discussion

This study will provide rigorous clinical evidence evaluating the efficacy and safety of using A&amp;AA as a smoking cessation therapy.

Trial registration

Chinese Clinical Trial Registry (Registration number: ChiCTR1900028371).

Effects of electroacupuncture on pain sensation in a rat model of hyperalgesia with nicotine dependence

Tobacco smoking is considered to be one of the main risk factors in the development of chronic pain. Long-term chronic exposure to nicotine and other forms of tobacco have been shown to be associated with an increased incidence of pain. Studies have shown that acupuncture can help smokers to reduce their desire to smoke, reduce their withdrawal symptoms, and avoid a relapse after treatment. However, little has been reported about the effects of acupuncture on pain sensitivity caused by long-term smoking. Models of hyperalgesia were established in rats exposed to nicotine for 6 weeks. After 6 weeks of continuous nicotine exposure, electroacupuncture at bilateral acupoints Zusanli (ST36) and Taichong (LR3) was performed 20 minutes per day for 6 days at a continuous wave with a frequency of 2 Hz and a stimulus intensity of 1 mA. The results revealed that electroacupuncture treatment increased the mechanical response threshold of hind paw of nicotine-dependent rats with hyperalgesia and up-regulated the protein expression of pain-related factors μ-opioid receptor, β-endorphin and glutamic acid decarboxylase 65 in the spinal cord and midbrain periaqueductal gray and the protein expression of glutamic acid decarboxylase 67 in the spinal cord. These findings suggest that electroacupuncture treatment has positive analgesic effects on pain sensitivity caused by long-term chronic nicotine exposure. One possible mechanism for the improved analgesia is that electroacupuncture increases the expression of pain-related factors in the spinal cord and midbrain periaqueductal gray. This study was approved by Institutional Animal Care and Use Committee (IACUC) of the University of Miami (#18-167) on December 12, 2018.

Comparison between Acupuncture and Nicotine Replacement Therapies for Smoking Cessation Based on Randomized Controlled Trials: A Systematic Review and Bayesian Network Meta-Analysis

Objectives

To evaluate the efficacy and/or safety of acupuncture therapy (AT) in quitting smoking.

Methods

Randomized controlled trials (RCTs) were searched in PubMed, Cochrane Library, Embase, Web of Science, and Chinese Biomedical Database (CBM). We used Cochrane Collaborative Quality Assessment to assess the risk of bias. Bayesian network meta-analysis was utilized to evaluate the efficacy and safety of different interventions. Data analyses were conducted using WinBUGS 1.4.3, Stata 14, and RevMan 5.3.5 software.

Results

A total of 2706 patients from 23 studies were included, involving 6 treatment arms. Network meta-analysis demonstrated that there was no significant difference in short-term abstinence rates or changes in Fagerstrom test for nicotine dependence (FTND) scores and daily smoking among these groups (AT, sham acupuncture therapy (SAT), auricular acupressure (AA), sham auricular acupressure (SAA), acupuncture plus auricular acupressure (APAA), and nicotine replacement therapy (NRT)). However, there was a significant difference between SAA and AA with risk ratio (RR) of 2.49 (95% CI 1.14, 5.97) in long-term abstinence rate. The probabilistic ranking results showed that APAA and AA were superior to other interventions in the comparison of abstinence rates. There was no obvious inconsistency between the direct comparison and indirect comparison, using the consistency test.

Conclusion

AA was superior to SAA in smoke quitting, but there was no difference among other interventions in long-term truncation rates. There was no difference in short-term abstinence rates among these selected groups. We need large sample RCTs to clarify the advantages of interventions such as APAA and AA. In addition, reporting of adverse events that may occur during treatment also should be enhanced to complement evidence-based medicine. The trial is registered with PROSPERO CRD42020164712.

Implementation of a free smoking-cessation program in a Lebanese academic medical center

INTRODUCTION

Despite the exceptionally high prevalence of tobacco use in Lebanon, few cessation programs exist. The American University of Beirut (AUB) developed one of the first smoking-cessation programs in the country in 2015, and the program became free-of-charge to patients in 2018. The program offers initial visit(s) with a primary care provider, in-person and/or telephone counseling, acupuncture, and medications.

METHODS

We assessed patient characteristics, treatments used, and patient outcomes in the first year of implementing the free smoking-cessation program, compared to the original program. We compared 87 smokers who initiated treatment in the free program with 47 patients in the original program.

RESULTS

At baseline, smokers in the free program were younger, smoked fewer cigarettes per day, and had lower CO levels than smokers in the original program. At 1 month follow-up, 72.9% were abstinent in the free program, compared with 42.2% in the original program (p<0.001). Smokers who had ≥2 primary care visits and those who had ≥1 acupuncture visits had higher rates of abstinence at 1 month and those who were prescribed bupropion had higher rates of abstinence at 12 months.

CONCLUSIONS

Implementation of the free smoking cessation program demonstrates preliminary efficacy, with telephone support offering potential for scalability.

Remission from nicotine dependence among people with severe mental illness who received help/services for tobacco/nicotine use

OBJECTIVES

A growing body of evidence supports pharmacological interventions to assist smoking cessation in people with severe mental illness (SMI); that is, lifetime major depressive disorder, bipolar disorders, or schizophrenia. Little is known about whether behavioral services are also associated with high probability of remission from nicotine dependence as compared to other types of help/services received (pharmacological, behavioral, or both).

METHODS

A sample of 726 American lifetime adult smokers with SMI and a history of nicotine dependence, who received help/services for tobacco/nicotine use, were identified. These data came from a limited public use dataset, the 2012-2013 NESARC-III. Survival analysis was used to compare the probability of remission from nicotine dependence and the time needed for full remission from nicotine dependence by type of help/services received for tobacco/nicotine use.

RESULTS

Remission was more frequent among those who received behavioral services. In addition, the average time from onset of nicotine dependence until full remission from nicotine dependence was shorter among those who received behavioral services.

CONCLUSIONS

The current study suggests a clinical need for behavioral interventions to promote the probability of remission from nicotine dependence among smokers with SMI. Health care providers could play a role in educating and encouraging smokers with SMI to seek and utilize behavioral services.

[Acupuncture and smoking cessation, a review of the literature]

INTRODUCTION

Tobacco smoking represents the main cause of death in industrialised countries. Acupuncture is proposed as an aid to stopping smoking. What are the current studies?

BACKGROUND

We found 23 controlled randomised studies with differing protocols in terms of intensity of treatment and methodology. The meta-analyses undertaken were contradictory. The short-term effect of acupuncture is well documented but the medium term effect is more uncertain.

OUTLOOK

The undertaking of well-standardised, high-intensity protocols is necessary to produce evidence of a medium term effect.

CONCLUSION

Acupuncture can be offered to patients wishing to stop smoking within the framework of a global management programme. The association of acupuncture with classical aids increases the chances of the patient stopping. The conditions of intervention should be defined precisely within the framework of a randomised controlled trial.