Here is the design of a clinical trial:

Official Title: Moxibustion Combined With Characteristic Lifestyle Intervention of Traditional Chinese Medicine in the Treatment of Abdominal Obesity: A Study Protocol for a Randomized Controlled Trial

Included conditions:
- Obesity

Study Armgroups:
- {'label': 'Moxibustion with characteristic lifestyle intervention of TCM', 'type': 'EXPERIMENTAL', 'description': 'Participants will receive moxibustion combined with characteristic lifestyle intervention of traditional chinese medicine.In this study, xiusheng decoction, traditional exercises, and modern lifestyle intervention will be combined as the characteristic lifestyle intervention method of TCM to help participants establish healthy living habits. Participants will receive the treatment of moxibustion 6 times a week to fulfill a 8-session treatment course, and the intervention of Xiusheng Decoction and Traditional exercises will last for 8 weeks.While the intervention of modern lifestyle intervention will be conducted for 12 weeks including the treatment period of 8 weeks and the follow-up period of 4 weeks.', 'interventionNames': ['Device: moxibustion combined with characteristic lifestyle intervention of traditional chinese medicine']}
- {'label': 'moxibustion with lifestyle intervention', 'type': 'EXPERIMENTAL', 'description': 'Participants will receive moxibustion combined with lifestyle intervention. Participants will receive the treatment of moxibustion 6 times a week to fulfill a 8-session treatment course,while the intervention of modern lifestyle intervention will be conducted for 12 weeks including the treatment period of 8 weeks and the follow-up period of 4 weeks.', 'interventionNames': ['Device: Moxibustion combined with lifestyle intervention.']}
- {'label': 'lifestyle intervention', 'type': 'OTHER', 'description': 'Participants will receive lifestyle intervention which includes modern dietary exercise modifications. Participants will receive this treatment for a 8-session treatment course and 4-session follow-up course.', 'interventionNames': ['Device: lifestyle intervention']}

Interventions:
- {'type': 'DEVICE', 'name': 'moxibustion combined with characteristic lifestyle intervention of traditional chinese medicine', 'description': '1. The moxibustion acupoints will be selected as①zhongwan, guanyuan, shenque, and zusanli;②pishu,shenshu. Acupoints group①will be selected on Monday, Wednesday, and Friday, Acupoints group②will be selected on Tuesday, Thursday, Saturday.Moxibustion treatment will be applied once every day, 6 times per week, for 8 consecutive weeks.\n2. Xiusheng decoction, traditional exercises, and modern lifestyle intervention will be combined as the characteristic lifestyle intervention method of TCM to help participants establish healthy living habits. The Xiusheng Decoction should be taken twice a day. Traditional exercises will be taken for 35\\~40 minutes everyday, 7 times a week. The intervention of Xiusheng Decoction and traditional exercises will be conducted for 8 weeks. All patients will be instructed to follow a good living habits which will last 12 weeks including the treatment period of 8 weeks and the follow-up period of 4 weeks.', 'armGroupLabels': ['Moxibustion with characteristic lifestyle intervention of TCM']}
- {'type': 'DEVICE', 'name': 'Moxibustion combined with lifestyle intervention.', 'description': '1. The moxibustion acupoints will be selected as①zhongwan, guanyuan, shenque, and zusanli;②pishu,shenshu. Acupoints group①will be selected on Monday, Wednesday, and Friday, Acupoints group②will be selected on Tuesday, Thursday, Saturday.Moxibustion treatment will be applied once every day, 6 times per week, for 8 consecutive weeks.\n2. All patients will be instructed to follow a good living habits including diet and exercise intervention which will last 12 weeks including the treatment period of 8 weeks and the follow-up period of 4 weeks.', 'armGroupLabels': ['moxibustion with lifestyle intervention']}
- {'type': 'DEVICE', 'name': 'lifestyle intervention', 'description': 'All patients will be instructed to follow a good living habits including diet and exercise intervention which will last 12 weeks including the treatment period of 8 weeks and the follow-up period of 4 weeks.', 'armGroupLabels': ['lifestyle intervention']}

Primary Outcomes:
- {'measure': 'Changes in waistline', 'description': 'Waist circumference will be measured around the abdomen at the level of the umbilicus (belly button).', 'timeFrame': 'week 0,week 2,week 4,week 6,week 8,week 12'}

Please estimate the sample size based on the assumption: 
1-sided α level of 0.025, ensuring adequate power, and anticipating a 10% dropout rate.
2.7
        Sample size calculation
        The participants will be randomly divided into moxibustion combined with characteristic lifestyle intervention of TCM (intervention group), moxibustion combined with lifestyle intervention (intervention group), the lifestyle intervention (control group) in a 2:2:1 allocation ratio. The sample size was calculated based on the primary outcome, which is proposed to be the WC. Statistical Analysis System software (version 9.3)(SAS 9.3 Institute Inc., Cary, NC) was used to calculate the required sample size.
        Based on the results of previous studies and related literature reports, sample size required for each individual hypothesis testing was estimated at the 1-sided Î± level 0.025. With other assumptions, the basis of estimated sample sizes was listed in Table 2. To ensure adequate power for each individual hypothesis testing, a sample size of 135 was required, which consists of 54 subjects in the moxibustion combined with characteristic lifestyle intervention of TCM (intervention group), 54 subjects in the moxibustion combined with lifestyle intervention (intervention group), and 27 subjects in the lifestyle intervention (control group). Anticipating a 10% dropout rate, a total of 150 participants were recruited.
        
          Table 2
          
            Sample sizes required for each individual hypothesis testing.