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Trial record 2 of 3 for:    "Thalassemia" | "Vitamin D"

Immunomodulatory Vitamin D in Thalassemia (ThalTB)

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ClinicalTrials.gov Identifier: NCT03919812
Recruitment Status : Completed
First Posted : April 18, 2019
Last Update Posted : April 19, 2019
Sponsor:
Collaborator:
Hasan Sadikin General Hospital
Information provided by (Responsible Party):
Mohammad Ghozali, Universitas Padjadjaran

Brief Summary:

Thalassemia becomes one of global health issue and so does Indonesia. In 2015, more than 7600 children were diagnosed as this hemoglobin genetic disease wherein anemia and lifetime blood transfusion contribute to their morbidity and mortality in Indonesia. Major β-Thalassemia is the most common type found. However, along with disease progression and age, iron accumulation and dysregulation becomes the most common complication exist. In cellular level, this condition results in cell and tissue damage especially immune cells and promotes favor condition for siderophilic bacteria such as Mycobaterium tuberculosis (Mtb) to growth rapidly. Severe infection becomes the second most cause of death in thalassemia-β major patients.

Tuberculosis (Tb) remains the global health issue especially in developing countries. Based on World Health Organization (WHO) report on 2015, Indonesia is the second highest burden of TB in the world. Both of adaptive and innate immune system plays important role in Mtb recognition and eradication. However, immune cells mechanism and activity in response to Mtb infection during iron accumulation condition on thalassemia-β major patients may be altered therefore need for further study. Macrophage is an adaptive immune cell, has a pivotal role on circulating-iron regulation and serves as Mtb host cell. To understand macrophage activity on thalassemia-β major patients can be studied by monocyte characteristic stimulated by Mtb antigen and evaluated by its differentiation into three subsets based on CD14 and CD16. Mtb antigen presentation is identified by HLA-DR expression on monocyte membrane.

Vitamin D is one of the most affected micronutrients on major β-thalassemia patients, yet it has immunomodulatory effect on immune system. Recent finding of vitamin D receptor (VDR) expressed in monocyte strongly convince that vitamin D should be maintained in major β-thalassemia patients where it is found lower in these patients. Thus, this original and true report aimed to declare that the research activity has finished and the data has been elaborated. Future plan is developing the original article based on the research finding corroborating the previous knowledge and innovative suggestion for the quality of thalassemia.


Condition or disease Intervention/treatment Phase
Thalassemia Tuberculosis Vitamin D Deficiency Dietary Supplement: Cholecalciferol supplementation Not Applicable

Detailed Description:

This study was designed as a non-randomized, open label, intervention study and performed at the thalassemia clinic of the Hasan Sadikin General Hospital, Bandung, West Java, Indonesia. Vitamin D deficiency in the general population is common in Indonesia with a prevalence of 41% reported in one study1. Sixty children (aged 1 month to 15 years) diagnosed as major β-thalassemia confirmed by clinical and hemoglobin electrophoresis who regularly having blood transfusion at least once in a month controlled in the clinic, from March - May 2018 were recruited prospectively. In addition, children who had ferritin serum >1000 µg/L in the last three months were met criteria for enrollment. Children who had tuberculosis or co-infection (hepatitis B, hepatitis C, and cytomegalovirus) and sign of acute infection were not eligible for enrollment. Informed consent was obtained from parents or child's guardian. Vitamin D levels were measured before and after supplementation while identifying their vitamin D sufficiency status. Classification of vitamin D sufficiency were used according to The Endocrine Society Clinical Practice Guideline, which stated that the level of 25(OH)D of < 20 ng/ml was considered to be vitamin D deficiency whereas a 25(OH)D of 21-29 ng/ml was considered to be insufficient. Then, a sufficient vitamin D was considered when the concentration of 25(OH)D was 30 ng/mL or above.2 No healthy control was enrolled to test for variability in the laboratory tests over time in this study.

The intervention provided according to the participants' state of vitamin D sufficiency. vitamin D sufficient participants received 800 IU cholecalciferol (syrup containing 400 IU cholecalciferol per measuring spoon, Gracia Pharmindo, Indonesia) daily for 8 weeks, while those who had insufficient or deficient vitamin D level consumed 2000 IU daily. Compliance was systematically monitored using drug monitoring diary evaluated by researchers. Blood samples for the study objectives were taken at enrollment and after eight weeks of cholecalciferol supplementation during routinely scheduled visits to the clinic. The outcome measure was the change in the proportion of monocyte subsets and the expression of membrane-bound protein of monocyte consist of CD14, CD16, and HLA-DR.

All procedures were conducted in accordance with policies of the Faculty of Medicine, Universitas Padjadjaran and Hasan Sadikin General Hospital, Bandung, West Java, Indonesia. This study was approved by Health Research Ethics Committee of Medical Faculty Universitas Padjadjaran Bandung with approval number 50/UN6.KEP/EC/2018. All participants signed a written informed consent. All participants signed a written informed consent. This study was registered in clinicaltrial.gov


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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 60 participants
Intervention Model: Single Group Assignment
Intervention Model Description: This study was designed as a non-randomized, open label, intervention study and performed at the thalassemia clinic of the Hasan Sadikin General Hospital, Bandung, West Java, Indonesia.
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Immunomodulatory Effect of Vitamin D Supplementation on Monocyte in Major Beta-thalassemia
Actual Study Start Date : April 1, 2018
Actual Primary Completion Date : July 15, 2018
Actual Study Completion Date : August 15, 2018


Arm Intervention/treatment
Experimental: Vitamin D supplementation according to baseline Vitamin D
The intervention provided according to the participants' state of vitamin D sufficiency. vitamin D sufficient participants received 800 IU cholecalciferol (syrup containing 400 IU cholecalciferol per measuring spoon, Gracia Pharmindo, Indonesia) daily for 8 weeks, while those who had insufficient or deficient vitamin D level consumed 2000 IU daily. Compliance was systematically monitored using drug monitoring diary evaluated by researchers. Blood samples for the study objectives were taken at enrollment and after eight weeks of cholecalciferol supplementation during routinely scheduled visits to the clinic.
Dietary Supplement: Cholecalciferol supplementation
supplementation received by subject according to their vitamin D status: insufficiency or deficiency.




Primary Outcome Measures :
  1. The outcome measure was the change in the proportion of monocyte subsets [ Time Frame: Eight-week supplementation ]
    The outcome measure was the change in the proportion of monocyte subsets and the expression of membrane-bound protein of monocyte consist of CD14, CD16, and HLA-DR.



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Ages Eligible for Study:   1 Year to 17 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Children (aged 1 month to 15 years) diagnosed as major β-thalassemia
  • Regularly having blood transfusion at least once in a month
  • controlled in Thalassemia Polyclinic of Hasan Sadikin General Hospital Bandung, West Java,
  • had ferritin serum >1000 µg/L in the last three months

Exclusion Criteria:

  • Children who had co-infection (hepatitis B, hepatitis C, and cytomegalovirus) and sign of acute infection were not eligible for enrollment.

Information from the National Library of Medicine

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): NCT03919812


Locations
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Indonesia
Klinik Thalassemia Rumah Sakit Dr. Hasan Sadikin Bandung
Bandung, West Java, Indonesia, 40161
Sponsors and Collaborators
Universitas Padjadjaran
Hasan Sadikin General Hospital
Investigators
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Principal Investigator: Mohammad Ghozali, Dr. Faculty of Medicine, Universitas Padjadjaran

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Responsible Party: Mohammad Ghozali, Principal Investigator, Universitas Padjadjaran
ClinicalTrials.gov Identifier: NCT03919812     History of Changes
Other Study ID Numbers: TB-201804.01
First Posted: April 18, 2019    Key Record Dates
Last Update Posted: April 19, 2019
Last Verified: April 2019

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Thalassemia
Vitamin D
Tuberculosis
Vitamin D Deficiency
Mycobacterium Infections
Actinomycetales Infections
Gram-Positive Bacterial Infections
Bacterial Infections
Anemia, Hemolytic, Congenital
Anemia, Hemolytic
Anemia
Hematologic Diseases
Hemoglobinopathies
Genetic Diseases, Inborn
Avitaminosis
Deficiency Diseases
Malnutrition
Nutrition Disorders
Ergocalciferols
Cholecalciferol
Vitamins
Micronutrients
Nutrients
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents
Calcium-Regulating Hormones and Agents