Denosumab Versus Zoledronic Acid in Thalassemia-Induced Osteoporosis (DOHA)

December 10, 2019 updated by: Hamad Medical Corporation

Denosumab Versus Zoledronic Acid for Patients With Beta-Thalassemia Major-Induced Osteoporosis

This study is to compare the two medications Denosumab and Zoledronic Acid For Patients With Beta Thalassemia Major Induced Osteoporosis. Patients with B-thalassemia major induce osteoporosis will undergo baseline assessment of the bone densitometry by Dual-energy X-ray absorptiometry scan as a standard of care by the radiology department, then a blood test for bone specific Alkaline phosphatase and type-1 Carboxy Telopeptide will be measured by the chemistry lab.

Patients with B-Thalassemia Major induced osteoporosis, who are 18 years of age or more and willing to participate in the study will be enrolled after consenting by the primary investigator in hematology outpatient clinic. Patients with osteoporosis will receive one of the two medications, at the end of the year Dual-energy X-ray absorptiometry scan will be done to compare the response of the two medications. The potential risks include the drug-related side effects

Study Overview

Detailed Description

Despite the significant improvements in the therapeutic management of beta thalassemia major (BTM) over the past few decades, osteoporosis is still a common finding, even in optimally treated patients. The relationships between bone mineral densities (BMD) and several clinical characteristics or hematological markers have been described. Chronic anemia, bone marrow expansion due to ineffective erythropoiesis, iron toxicity, calcium and zinc deficiencies, low vitamin D levels and endocrine complications have been suggested to contribute to the etiology of bone diseases in BTM. Nevertheless, the complex etiological mechanisms of this heterogeneous osteopathy remain incompletely clarified. A complex mechanism controls bone remodeling in human. This mechanism includes the receptor activator of nuclear factor kappa B ligand (RANKL), its natural receptor (RANK) and osteoprotegerin (OPG). The RANK/RANKL pathway is an essential to promote osteoclast formation and activation and prolongs osteoclast survival.

OPG acts as a decoy receptor for RANKL and prevents its interaction with RANK thereby inhibiting osteoclast formation, function, and survival. Alteration of the RANK/RANKL/OPG system for increased osteoclastic activity and enhanced osteoblastic dysfunction is proposed as an important mechanism in the etiology of osteoporosis in BTM. Hypogonadism, a common finding in BTM, is associated with enhanced RANKL activity. The sex steroid hormones, androgen, and estrogens, via their respective nuclear receptors, regulate BMD in humans and mice. Testosterone is likely to have direct and indirect inhibitory effects on human osteoclast formation and bone resorption. Animal model and cell culture studies suggest a direct inhibitory effect of androgens on the OPG/RANKL cytokines system. In human osteoblastic cells, testosterone and 5-dihydrotestosterone mediate an androgen receptor-induced specific inhibition of OPG messenger ribonucleic acid (mRNA) expression. Androgens have also been shown to block RANKL-induced osteoclastic formation while RANKL expression was found to be up-regulated in osteoblastic cells from androgen receptor-deficient mice. The effect of oestradiol (E2) on osteoclast precursors and osteoclasts seems to be mediated by osteoblastic cells. Inhibitory effect of E2 is associated with the stimulated secretion of OPG by osteoblasts. Previous studies have focused on the characteristics of thalassemic patients with osteoporosis and their response to therapy with bisphosphonate. Because RANK-RANKL and OPG play a significant role in bone resorption and seem to be the principal implicated mechanism for the development of osteoporosis in BTM, we will conduct this prospective study to evaluate the anti-RANKL denosumab versus zoledronic acid on TM-induced osteoporosis.

Study Type

Interventional

Enrollment (Actual)

17

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Doha, Qatar
        • National Center for Cancer Care & Research (NCCCR)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Willing to participate in the study
  • Age 18 years old or older
  • Eastern Cooperative Oncology Group Performance Status less than or equal 2

Exclusion Criteria:

  • Age less than 18 years old
  • Not willing to participate in the study
  • Vulnerable subjects or Eastern Cooperative Oncology Group Performance Status 3 or 4

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Denosumab

Denosumab 60 MG/ML Prefilled Syringe

Denosumab Dose: 60 milligrams, subcutaneous injection, every 6 months (twice a year)

Denosumab 60 MG/ML will be administered to 20 patients with b-thalassemia major
Other Names:
  • Prolia
ACTIVE_COMPARATOR: Zoledronic Acid

Zoledronic Acid 5Mg/Bag 100Ml Inj

Zoledronic acid will be 5 milligrams, Intravenous injection, once a year

Zoledronic Acid 5Mg/Bag 100Ml Inj will be administered to 20 patients with b-thalassemia major
Other Names:
  • Aclasta

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of patients with a 50 percent or greater reduction in type-1 collagen carboxy telopeptide from the baseline
Time Frame: 12 months
Number of patients with a 50 percent or greater reduction in type-1 collagen carboxy telopeptide from the baseline
12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of patients with a 50 percent or greater improvement in Dual-energy X-ray absorptiometry scan from the baseline
Time Frame: 12 months
Number of patients with a 50 percent or greater improvement in Dual-energy X-ray absorptiometry scan from the baseline
12 months
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
Time Frame: 12 months
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

May 14, 2018

Primary Completion (ACTUAL)

April 8, 2019

Study Completion (ACTUAL)

April 8, 2019

Study Registration Dates

First Submitted

January 22, 2017

First Submitted That Met QC Criteria

January 31, 2017

First Posted (ESTIMATE)

February 2, 2017

Study Record Updates

Last Update Posted (ACTUAL)

December 12, 2019

Last Update Submitted That Met QC Criteria

December 10, 2019

Last Verified

May 1, 2018

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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