Study on the Mechanism of Colla Corri Asini in the Treatment of Thalassemia Patients With Pregnancy Anemia
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|ClinicalTrials.gov Identifier: NCT03392298|
Recruitment Status : Recruiting
First Posted : January 5, 2018
Last Update Posted : January 16, 2018
|Condition or disease||Intervention/treatment||Phase|
|Thalassemia Pregnancy||Drug: Colla corii asini||Phase 4|
Thalassemia is a type of hemolytic anemia disease caused by genetic defect of synthesis in one or more globin chains. Among all the single genetic disorders, thalassemia has the highest incidence rate in the world and causes heavy burdens on public health system. In China, the southern provinces suffer from high incidence of thalassemia, which is particularly common in the population of Guangdong, Guangxi and Yunnan provinces. Epidemiological studies showed that in Guangdong alone about 17.83 % of the 14,332 pregnant women across 21 regions examined were diagnosed as carriers of thalassemia.
Recent studies showed that after pregnancy, anemia in β-thalassemia patients tends to turn more serious, the risk of adverse pregnancy outcomes accordingly increase. Currently, no consensus has been reached in treating pregnant thalassemia patients due to lack of safe and effective treatment. Regulation of globin gene expression is the key link of β-thalassemia treatment, but the accessible western medicines have many limitations, including bone marrow suppression, carcinogenicity and teratogenicity, and are not suitable for pregnant patients.
In China, Colla corii asini (CCA, E'jiao) is a gelatin-like traditional Chinese medicine refined from donkey hide and has been widely used in clinical antanemic therapy for more than 2000 years. In the last decade, many studies had addressed the effect of CCA on the anemia using modern pharmacological approaches. The results indicated that CCA contains collagen protein,glycogen and a variety of trace elements, a variety of amino acids, etc. the main components of CCA can promote hematopoiesis by a number of mechanisms which eventually increase the peripheral erythrocyte counts and Hb concentration. Therefore, the investigators proposed that the hematopoietic effects of CCA might also contribute to the treatment of thalassemia with insuffcient or abnormal Hb concentration.
Our previous clinical study showed that CCA can significantly increase the level of hemoglobin and adult hemoglobin (HbA,α2β2) in the pregnant women with β-thalassemia, it was speculated that CCA might induce β globin gene expression, which would be more beneficial to pregnant women than the γ globin gene inducer. But its regulatory pathway is not clear.
This study is designed to explore the pathways and targets of regulating globin expression by using the transcriptomics method, which might be related to CCA treating pregnant anemia in β-thalassemia patients. And then the results of transcriptomics study will be further verified by expanding the clinical samples and implementing cell experiments, aiming to explore the mechanisms of CCA in treating β-thalassemia with pregnant anemia by regulating globin expression.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||70 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Single (Outcomes Assessor)|
|Official Title:||Investigation of Signal Pathway Induced by Colla Corri Asini Regulating Globin Level in Beta Thalassemia Patients With Pregnancy Anemia|
|Actual Study Start Date :||December 1, 2017|
|Estimated Primary Completion Date :||December 31, 2018|
|Estimated Study Completion Date :||February 28, 2019|
Experimental: CCA group
Participants in CCA group will be treated with 15g of Colla corii asini granule( produced by Dong-E E-Jiao Co., Ltd)， once daily for 4 weeks.
Drug: Colla corii asini
15g Colla corii asini granule, once daily for 4 weeks
Other Name: donkey-hide gelatin
No Intervention: Control group
Participants in Control group will be treated with nothing, but followed up for 4 weeks.
- Hemoglobin(Hb) [ Time Frame: baseline and week 4 ]the change of hemoglobin(g/L)
- the level of α-、β-、γ- and δ-globin mRNA [ Time Frame: baseline and week 4 ]the change of α-、β-、γ- and δ-globin mRNA(cycle threshold value)
- target gene signaling pathway molecules [ Time Frame: baseline and week 4 ]the change of gene expression level(fold change)
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03392298
|Contact: Yanfang Li, PhDfirstname.lastname@example.org|
|the first affiliated hospital of Guangzhou University of Chinese Medicine||Recruiting|
|Guangzhou, Guangdong, China, 510405|
|Contact: Yanfang Li, PhD +86-20-36598857 email@example.com|
|Contact: Song-ping Luo, professor 13005156625 firstname.lastname@example.org|
|Principal Investigator:||Yanfang Li, PhD||the first affiliated hospital of Guangzhou University of Chinese Medicine, Guangzhou|