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International Clinical Study of Zhizhu Kuanzhong Capsule

Primary Purpose

Functional Dyspepsia, Postprandial Distress Syndrome

Status
Recruiting
Phase
Phase 4
Locations
International
Study Type
Interventional
Intervention
Zhizhu Kuanzhong Capsule
Zhizhu Kuanzhong Placebo Capsule
Sponsored by
Xiyuan Hospital of China Academy of Chinese Medical Sciences
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Functional Dyspepsia focused on measuring Functional Dyspepsia, Postprandial Distress Syndrome, Traditional Chinese Medicine, efficacy, safety, clinical evaluation

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Meeting the Rome IV diagnostic criteria for functional dyspepsia-postprandial distress syndrome;
  2. * At least 3 days during the one-week run-in period with VAS score โ‰ฅ 4 for major symptoms (at least one of postprandial fullness discomfort and early satiety) .
  3. Age between 18 and 65 years old (including 18 and 65 years old), male or female, outpatients;
  4. **Be able to discontinue prohibited medications that may affect the evaluation of the effectiveness, such as acid inhibition/antacids, prokinetic agents, non-steroidal anti-inflammatory drugs, anticholinergic agents, glucocorticoids, and therapeutic medication for H. pylori eradication.
  5. Each subject is informed and voluntarily signed the informed consent form(ICF).

    • Subjects who entered the one-week run-in period are self-rated on the Visual Analogue Score (VAS) for the degree of discomfort with both symptoms of postprandial fullness and early fullness, with subjects indicating the degree of discomfort on a 10 cm ruler marked 0- "Asymptomatic or No Discomfort"and 10- "Extreme Severe or Extreme Discomfort"at its head and tail, respectively. The rating was made once a day and 7 days a week with scores of 0 to 10.

      • A 2-week wash-out period is required for patients taking prohibited medications prior to screening.

Exclusion Criteria:

  1. Gastroscopic findings of gastric cancer, peptic ulcer, erosive gastritis (grade 2 or higher), moderate to severe atrophic gastritis, dysplasia, or other organ gastrointestinal disease.
  2. Patients with a history of abdominal surgery (except for appendectomy and cesarean section).
  3. Patients with immune system defects (such as leukaemia or cancer), or those who have been administered immunosuppressive agents or glucocorticoids within the past 3 months.
  4. Patients who combined severe cardiac and pulmonary insufficiency, insufficiency of liver (ALT/AST > 1.5 times the upper limit of the normal value) and kidney insufficiency (BUN/Serum Creatinine > the upper limit of the normal value), abnormal of endocrine system( such as diabetes and thyroid dysfunction), abnormal hematopoietic system, and iron deficiency anemia as indicated on hematological examination.
  5. Patients with severe anxiety and depression.
  6. Patients with psychosis and mental retardation as well as language disorder precluding the ability of filling scales or recording symptoms.
  7. Pregnant (a female of childbearing potential with a positive pregnancy test) or lactating females; or patients of childbearing potential without effective contraception.
  8. Patients who are known to be allergic to the ingredients of this drug.
  9. Patients who are suspected to have or indeed have a history of alcohol or drug abuse.
  10. Patients who have participated in a clinical trial in the past 3 months.
  11. Patients who are deemed by the investigator as being not suitable for participation in the clinical trial.

Sites / Locations

  • Princess Alexandra Hospital
  • Xiyuan Hospital of China Academy of Chinese Medical SciencesRecruiting
  • Beijing Jishuitan HospitalRecruiting
  • Peking Union Medical College Hospital of Chinese Academy of Medical SciencesRecruiting
  • Fujian Provincial HospitalRecruiting
  • Peking Union Medical College Hospital of Chinese Academy of Medical SciencesRecruiting
  • The First Affiliated Hospital of Guangzhou University of Chinese MedicineRecruiting
  • Hong Kong Baptist UniversityRecruiting
  • Wuhan Union HospitalRecruiting
  • Jiangsu Province HospitalRecruiting
  • Shengjing Hospital Affiliated to China Medical UniversityRecruiting
  • Kulun Qimeng Hospital
  • Ruijin HospitalRecruiting
  • Affiliated Hospital of Shaanxi University of traditional Chinese medicineRecruiting
  • Shaanxi Academy of Traditional Chinese MedicineRecruiting
  • The Second Affiliated Hospital of Xi'an Jiaotong UniversityRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

Zhizhu Kuanzhong Capsule

Zhizhu Kuanzhong Placebo Capsule

Arm Description

Zhizhu Kuanzhong Capsule Arm is Zhizhu Kuanzhong Capsule, Specification: 0.43 g/granule; Manufacturer: Lonch Group, Shuangren Pharmaceutical Co., Ltd. ; Approval number: NMPA approval number: GUOYAOZHUNZI Z20020003; Dosage and administration: 3 capsules at a time, 3 times a day, taken orally 10-15 min before meals

Zhizhu Kuanzhong Placebo Capsule Arm is Zhizhu Kuanzhong Capsule Mimics composed of microcrystalline cellulose, mannitol and magnesium stearate, which used for filling agent and lubricant respectively; Specification: 0.43 g/granule; Manufacturer: Lonch Group, Shuangren Pharmaceutical Co., Ltd.; Dosage and administration: Be identical with the investigational drug.

Outcomes

Primary Outcome Measures

The proportion of the response at 8 weeks after randomization
Subjects with the functional dyspepsia-postprandial distress syndrome are self-rated on the Visual Analogue Score (VAS) which is a scale of 0-10, with subjects indicating the degree of discomfort on a 10 cm ruler marked 0- "Asymptomatic or No Discomfort "to 10- "Extreme Severe or Extreme Discomfort "at its head and tail, respectively. The record is made once a day and 7 days a week via a diary card. For VAS scores for postprandial fullness discomfort and early satiety, the integral average for both symptoms over the past week is evaluated, and a 50% decrease from baseline in the integral average at 8 Weeks is recorded as a response.

Secondary Outcome Measures

The change of VAS score of each symptom of functional dyspepsia
On the diary cards, subjects recorded the Visual Analogue Score (VAS) of each symptom of the functional dyspepsia daily. VAS is scored on a scale of 0-10 which the higher the score, the severer the symptom is. The record is made once a day and 7 days. The investigators use the average of the weekly VAS scores as the symptom intensity score for this week, with one VAS score per week. The change in the score of each symptom at 8 weeks after randomization relative to the baseline is evaluated.
Overall treatment response rate
The overall treatment efficacy is evaluated using a 7-point Likert Overall Evaluation Scale (OTE). The clinical investigators asked the subjects the following questions weekly: "In the last week, how much have your dyspeptic symptoms been alleviated as compared to pre-treatment? " There are 7 options: โ‘  the symptoms improved significantly, โ‘ก the symptoms improved, โ‘ข the symptoms improved slightly, โ‘ฃ the symptoms did not change, โ‘ค the symptoms aggravated slightly, โ‘ฅ the symptoms aggravated, โ‘ฆ the symptoms aggravated significantly. At the last visit time point of the treatment cycle, patients who selected โ‘  and โ‘ก were defined as treatment responders, and those who selected โ‘ข-โ‘ฆ were defined as non-responders. The response rate at 8 weeks after randomization between the groups are compared for differences.
Short Form Nepean Dyspepsia Index (SFNDI)
Short Form-Nepean Dyspepsia Index (SFNDI) is a reliable and valid measure of quality of life in functional dyspepsia with 10 items which questions are about how subjects stomach pain, discomfort, or other epigastric symptoms over the last 14 days affect their lives. Add up the ten items for each of the five sub-scale scores (range of each sub-scale 2-10). The changes of SFNDI score at 4 weeks and 8 weeks after randomization relative to the baseline are calculated.
Hospital Anxiety and Depression Scale score
The Hospital Anxiety and Depression Scale (HAD) is mainly used in patients in general hospitals which provides two sets of tests to assess the state of anxiety and depression, respectively. Among them, A stands for anxiety items, D stands for depression items, and each item is scored at four levels. Each of the two sets of items are superimposed to obtain their respective total score. A total score of 0 to 7 indicates normal, 8 to 10 indicates borderline abnormal, and 11 to 21 indicates abnormal. The changes of HAD score at 4 weeks and 8 weeks after randomization relative to the baseline are calculated.

Full Information

First Posted
January 28, 2019
Last Updated
August 2, 2023
Sponsor
Xiyuan Hospital of China Academy of Chinese Medical Sciences
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1. Study Identification

Unique Protocol Identification Number
NCT03825692
Brief Title
International Clinical Study of Zhizhu Kuanzhong Capsule
Official Title
A Multi-center, Randomized, Double-Blind, Placebo-Controlled Parallel Group Clinical Trial of Zhizhu Kuanzhong Capsule in Treating Patients With Postprandial Distress Syndrome of Functional Dyspepsia
Study Type
Interventional

2. Study Status

Record Verification Date
January 2023
Overall Recruitment Status
Recruiting
Study Start Date
October 24, 2019 (Actual)
Primary Completion Date
December 2023 (Anticipated)
Study Completion Date
December 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Xiyuan Hospital of China Academy of Chinese Medical Sciences

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This trial aims to evaluate the clinical efficacy and safety of Zhizhu Kuanzhong Capsule in the treating patients with functional dyspepsia postprandial distress syndrome(FD PDS). Half of participants will receive Zhizhu Kuanzhong Capsule,while the other will receive a placebo.
Detailed Description
Functional dyspepsia (FD) is one of the most common functional gastrointestinal disorders. Current data from clinical studies have shown that traditional Chinese medicine can obviously relieve clinical symptoms of patients with FD, and has special advantages and good clinical application prospects in the treatment of FD. Zhizhu Kuanzhong Capsule is mainly composed of the following 4 kinds of Chinese herbs: Rhizoma Atractylodis Macrocephala, Fructus Aurantii Immaturus, Radix Bupleuri and Fructus Crataegi. This trial aims to evaluate the clinical efficacy and safety of Zhizhu Kuanzhong Capsule in the treating patients with functional dyspepsia postprandial distress syndrome(FD PDS). This is a multi-center, stratified-block randomized, double-blind and placebo parallel-controlled trial. The comparison between the investigational drug and the placebo will be conducted with superiority design. About 480 subjects matched Rome IV diagnostic criteria for FD PDS will be enrolled. For each subject, this study includes a 0-2 week screening period, a 1-week run-in period, an 8-week double-blind treatment period, and a 4-week follow-up period. The drugs used in the clinical study (including investigational drug and placebo) will be supplied by Shuangren Pharmaceutical Co., Ltd. of Lonch Group.The quality standards and test methods for the placebo are consistent with those for the investigational drug, and the quality test meets the proposed quality standards. The selection and evaluation bias are controlled by means of strictly implementing randomized control blinded method etc, and the investigator will be trained on the consistency of scale evaluation.The electronic case report form (hereinafter referred to as eCRF) of this trial is created using the Medical Clinical Trial Data Management System (eCDMS3.0) for online data acquisition and management via the Internet. The data in the eCRF are from the original documents such as the original medical records and the physicochemical examination report sheets and should be consistent with the original documents. The response rate for functional dyspepsia VAS score will be compared between the test group and control group at 8 weeks after randomization.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Functional Dyspepsia, Postprandial Distress Syndrome
Keywords
Functional Dyspepsia, Postprandial Distress Syndrome, Traditional Chinese Medicine, efficacy, safety, clinical evaluation

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Parallel Assignment
Model Description
Randomized, double-blind, placebo-controlled, multi-center
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
480 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Zhizhu Kuanzhong Capsule
Arm Type
Experimental
Arm Description
Zhizhu Kuanzhong Capsule Arm is Zhizhu Kuanzhong Capsule, Specification: 0.43 g/granule; Manufacturer: Lonch Group, Shuangren Pharmaceutical Co., Ltd. ; Approval number: NMPA approval number: GUOYAOZHUNZI Z20020003; Dosage and administration: 3 capsules at a time, 3 times a day, taken orally 10-15 min before meals
Arm Title
Zhizhu Kuanzhong Placebo Capsule
Arm Type
Placebo Comparator
Arm Description
Zhizhu Kuanzhong Placebo Capsule Arm is Zhizhu Kuanzhong Capsule Mimics composed of microcrystalline cellulose, mannitol and magnesium stearate, which used for filling agent and lubricant respectively; Specification: 0.43 g/granule; Manufacturer: Lonch Group, Shuangren Pharmaceutical Co., Ltd.; Dosage and administration: Be identical with the investigational drug.
Intervention Type
Drug
Intervention Name(s)
Zhizhu Kuanzhong Capsule
Other Intervention Name(s)
ZZKZ capsule
Intervention Description
Zhizhu Kuanzhong Capsule, 3 capsules at a time, 3 times a day, taken orally 10-15 min before meals. an 8-week intervention period
Intervention Type
Drug
Intervention Name(s)
Zhizhu Kuanzhong Placebo Capsule
Other Intervention Name(s)
placebo
Intervention Description
Placebo, 3 capsules at a time, 3 times a day, taken orally 10-15 min before meals. an 8-week intervention period
Primary Outcome Measure Information:
Title
The proportion of the response at 8 weeks after randomization
Description
Subjects with the functional dyspepsia-postprandial distress syndrome are self-rated on the Visual Analogue Score (VAS) which is a scale of 0-10, with subjects indicating the degree of discomfort on a 10 cm ruler marked 0- "Asymptomatic or No Discomfort "to 10- "Extreme Severe or Extreme Discomfort "at its head and tail, respectively. The record is made once a day and 7 days a week via a diary card. For VAS scores for postprandial fullness discomfort and early satiety, the integral average for both symptoms over the past week is evaluated, and a 50% decrease from baseline in the integral average at 8 Weeks is recorded as a response.
Time Frame
up to 8 weeks
Secondary Outcome Measure Information:
Title
The change of VAS score of each symptom of functional dyspepsia
Description
On the diary cards, subjects recorded the Visual Analogue Score (VAS) of each symptom of the functional dyspepsia daily. VAS is scored on a scale of 0-10 which the higher the score, the severer the symptom is. The record is made once a day and 7 days. The investigators use the average of the weekly VAS scores as the symptom intensity score for this week, with one VAS score per week. The change in the score of each symptom at 8 weeks after randomization relative to the baseline is evaluated.
Time Frame
Up to 8 weeks
Title
Overall treatment response rate
Description
The overall treatment efficacy is evaluated using a 7-point Likert Overall Evaluation Scale (OTE). The clinical investigators asked the subjects the following questions weekly: "In the last week, how much have your dyspeptic symptoms been alleviated as compared to pre-treatment? " There are 7 options: โ‘  the symptoms improved significantly, โ‘ก the symptoms improved, โ‘ข the symptoms improved slightly, โ‘ฃ the symptoms did not change, โ‘ค the symptoms aggravated slightly, โ‘ฅ the symptoms aggravated, โ‘ฆ the symptoms aggravated significantly. At the last visit time point of the treatment cycle, patients who selected โ‘  and โ‘ก were defined as treatment responders, and those who selected โ‘ข-โ‘ฆ were defined as non-responders. The response rate at 8 weeks after randomization between the groups are compared for differences.
Time Frame
Up to 8 weeks
Title
Short Form Nepean Dyspepsia Index (SFNDI)
Description
Short Form-Nepean Dyspepsia Index (SFNDI) is a reliable and valid measure of quality of life in functional dyspepsia with 10 items which questions are about how subjects stomach pain, discomfort, or other epigastric symptoms over the last 14 days affect their lives. Add up the ten items for each of the five sub-scale scores (range of each sub-scale 2-10). The changes of SFNDI score at 4 weeks and 8 weeks after randomization relative to the baseline are calculated.
Time Frame
Up to 8 weeks
Title
Hospital Anxiety and Depression Scale score
Description
The Hospital Anxiety and Depression Scale (HAD) is mainly used in patients in general hospitals which provides two sets of tests to assess the state of anxiety and depression, respectively. Among them, A stands for anxiety items, D stands for depression items, and each item is scored at four levels. Each of the two sets of items are superimposed to obtain their respective total score. A total score of 0 to 7 indicates normal, 8 to 10 indicates borderline abnormal, and 11 to 21 indicates abnormal. The changes of HAD score at 4 weeks and 8 weeks after randomization relative to the baseline are calculated.
Time Frame
Up to 8 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Meeting the Rome IV diagnostic criteria for functional dyspepsia-postprandial distress syndrome; * At least 3 days during the one-week run-in period with VAS score โ‰ฅ 4 for major symptoms (at least one of postprandial fullness discomfort and early satiety) . Age between 18 and 65 years old (including 18 and 65 years old), male or female, outpatients; **Be able to discontinue prohibited medications that may affect the evaluation of the effectiveness, such as acid inhibition/antacids, prokinetic agents, non-steroidal anti-inflammatory drugs, anticholinergic agents, glucocorticoids, and therapeutic medication for H. pylori eradication. Each subject is informed and voluntarily signed the informed consent form(ICF). Subjects who entered the one-week run-in period are self-rated on the Visual Analogue Score (VAS) for the degree of discomfort with both symptoms of postprandial fullness and early fullness, with subjects indicating the degree of discomfort on a 10 cm ruler marked 0- "Asymptomatic or No Discomfort"and 10- "Extreme Severe or Extreme Discomfort"at its head and tail, respectively. The rating was made once a day and 7 days a week with scores of 0 to 10. A 2-week wash-out period is required for patients taking prohibited medications prior to screening. Exclusion Criteria: Gastroscopic findings of gastric cancer, peptic ulcer, erosive gastritis (grade 2 or higher), moderate to severe atrophic gastritis, dysplasia, or other organ gastrointestinal disease. Patients with a history of abdominal surgery (except for appendectomy and cesarean section). Patients with immune system defects (such as leukaemia or cancer), or those who have been administered immunosuppressive agents or glucocorticoids within the past 3 months. Patients who combined severe cardiac and pulmonary insufficiency, insufficiency of liver (ALT/AST > 1.5 times the upper limit of the normal value) and kidney insufficiency (BUN/Serum Creatinine > the upper limit of the normal value), abnormal of endocrine system( such as diabetes and thyroid dysfunction), abnormal hematopoietic system, and iron deficiency anemia as indicated on hematological examination. Patients with severe anxiety and depression. Patients with psychosis and mental retardation as well as language disorder precluding the ability of filling scales or recording symptoms. Pregnant (a female of childbearing potential with a positive pregnancy test) or lactating females; or patients of childbearing potential without effective contraception. Patients who are known to be allergic to the ingredients of this drug. Patients who are suspected to have or indeed have a history of alcohol or drug abuse. Patients who have participated in a clinical trial in the past 3 months. Patients who are deemed by the investigator as being not suitable for participation in the clinical trial.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Fang Lu, MD,Phd
Phone
+861062835652
Email
deerfang@126.com
First Name & Middle Initial & Last Name or Official Title & Degree
Yingpan Zhao, MD,Phd
Phone
86015810964983
Email
zypzyp1984@163.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Fang Lu, Md, Phd
Organizational Affiliation
Xiyuan Hospital of China Academy of Chinese Medical Sciences
Official's Role
Study Director
Facility Information:
Facility Name
Princess Alexandra Hospital
City
Brisbane
State/Province
Queensland
Country
Australia
Individual Site Status
Not yet recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Gerald Holtmann
Facility Name
Xiyuan Hospital of China Academy of Chinese Medical Sciences
City
Beijing
State/Province
Beijing
ZIP/Postal Code
100091
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Fang Lu, Phd
Phone
+861062835652
Email
deerfang@163.com
Facility Name
Beijing Jishuitan Hospital
City
Beijing
State/Province
Beijing
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Yu Lan
Facility Name
Peking Union Medical College Hospital of Chinese Academy of Medical Sciences
City
Beijing
State/Province
Beijing
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Xiaohong Sun
Facility Name
Fujian Provincial Hospital
City
Fuzhou
State/Province
Fujian
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Lin
Facility Name
Peking Union Medical College Hospital of Chinese Academy of Medical Sciences
City
Guangzhou
State/Province
Guangdong
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Yinglian Xiao
Facility Name
The First Affiliated Hospital of Guangzhou University of Chinese Medicine
City
Guangzhou
State/Province
Guangdong
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Fengbin Liu
Facility Name
Hong Kong Baptist University
City
Hong Kong
State/Province
Hongokng
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Linda Zhong
Facility Name
Wuhan Union Hospital
City
Wuhan
State/Province
Hubei
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Xiaohua Hou
Facility Name
Jiangsu Province Hospital
City
Nanjing
State/Province
Jiangsu
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Guoxin Zhang
Facility Name
Shengjing Hospital Affiliated to China Medical University
City
Shenyang
State/Province
Liaoning
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Yan Li
Facility Name
Kulun Qimeng Hospital
City
Tongliao
State/Province
Neimenggu
Country
China
Individual Site Status
Completed
Facility Name
Ruijin Hospital
City
Shanghai
State/Province
Shanghai
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Duowu Zou
Facility Name
Affiliated Hospital of Shaanxi University of traditional Chinese medicine
City
Xi'an
State/Province
Shanxi
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Jiehong Wang
Facility Name
Shaanxi Academy of Traditional Chinese Medicine
City
Xi'an
State/Province
Shanxi
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Tao Yu
Facility Name
The Second Affiliated Hospital of Xi'an Jiaotong University
City
Xi'an
State/Province
Shanxi
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Jinghai Wang

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
35655286
Citation
Xiao M, Zhong LLD, Lam WC, Zhao Y, Gwee KA, Holtmann G, Tack J, Suzuki H, Chen MH, Xiao Y, Hou X, Liu J, Li Y, Tang XD, Lu F. Zhizhu Kuanzhong Capsule in treating patients with functional dyspepsia postprandial distress syndrome: study protocol for a multicenter, randomized, double-blind, placebo-controlled, parallel-group clinical trial. Trials. 2022 Jun 2;23(1):454. doi: 10.1186/s13063-022-06396-5.
Results Reference
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International Clinical Study of Zhizhu Kuanzhong Capsule

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