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doxercalciferol, Hectorol

Phase 2

Bone Mineral Density of Spine and Femur | Small molecule | Musculoskeletal |Bone Biologics Corp|Last Updated: Jun 22, 2026

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment60

FDA Designations

No designations recorded

Clinical trial landscape

doxercalciferol, Hectorol · 1 trial · 1 indication

Phase 2 1
NCT07660536To Study the Efficacy and Safety of Doxercalciferol on Spinal and Femoral Density in Postmenopausal Osteopenic Women in a Long Term 2 Year StudyBone Mineral Density of Spine and Femur
COMPLETED60 Analytics
PHASE2COMPLETED
To Study the Efficacy and Safety of Doxercalciferol on Spinal and Femoral Density in Postmenopausal Osteopenic Women in a Long Term 2 Year Study
Bone Mineral Density of Spine and FemurUnlock trial analytics

Study Endpoints

Primary Endpoints

spine and femur density
2 years

change over time

change in spine and femur density over 2 years
2 years

measurements every 6 months over 2 years

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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
doxercalciferol capsulesPLACEBO_COMPARATORplacebo capsule are given in increasing doses weekly from 1 to 5 mcg daily over 6 weeks and continued for 24 months or if serum calcium is elevated at a lower dose then the patient will be continued on the lower dose for 24 months.The change in bone mineral density will be measured at baseline ,12 and 24 months
prevention of osteoporosisEXPERIMENTALdoxercalciferol capsule are given in increasing doses weekly from 1 to 5 mcg daily over 6 weeks and continued for 24 months or if serum calcium is elevated at a lower dose then the patient will be continued on the lower dose for 24 months.The change in bone mineral density will be measured at baseline ,12 and 24 months

Interventions

NameTypeDescription
doxercalciferol capsules, Hectorol®DRUGdoxercalciferol capsules given in escalating doses from 1mcg to 5mcg daily.If serum calcium is elevated at any dose then that dose is maintained long term for 24 months.The change in bone mineral density will be measured at baseline ,12 and 24 months
Matched Placebo (Capsules)DRUGoral doses increased from 1 to 5mcg once daily until serum calcium is elevated and given for 2 years.The change in bone mineral density will be measured at baseline ,12 and 24 months
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Eligibility Criteria

Age Range60 Years to 78 Years
SexFEMALE
Healthy VolunteersNo
Study Sites1

Inclusion Criteria:normal baseline serum and urinary biochemical parameters .spine density 0.70-1.05g/cm2, - Exclusion Criteria:significant medical disorders, recent use of medications known to affect bone or calcium metabolism, history of renal calculi, previous prolonged hospitalization or other ...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJul 23, 2026NCT07660536TRIAL_REMOVED: changed
MEDIUMJul 23, 2026NCT07660536TRIAL_REMOVED: changed
MEDIUMJul 23, 2026NCT07660536TRIAL_REMOVED: changed

Frequently asked questions about doxercalciferol, Hectorol

What is doxercalciferol (Hectorol) used for?

Doxercalciferol, also known as Hectorol, is being studied for its effect on bone mineral density of the spine and femur in postmenopausal women with osteopenia. It is a small molecule in Phase 2 clinical development for this musculoskeletal condition.

What does doxercalciferol target?

Doxercalciferol is a synthetic vitamin D analog. It works by binding to the vitamin D receptor, which helps regulate calcium and phosphate metabolism, thereby influencing bone mineral density. This mechanism is relevant to its study in postmenopausal osteopenic women.

Who is developing doxercalciferol?

Doxercalciferol is being developed by Bone Biologics Corp, a company traded on the NASDAQ under the ticker symbol BBLG. The company is conducting clinical trials to evaluate the drug's efficacy and safety for improving bone mineral density.

What phase is doxercalciferol in?

Doxercalciferol is in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA for the indication of bone mineral density of the spine and femur. One Phase 2 trial has been completed.

What clinical trials is doxercalciferol in?

Doxercalciferol has one completed Phase 2 trial, NCT07660536, which studied its efficacy and safety on spinal and femoral density in postmenopausal osteopenic women over two years. The trial enrolled 60 female participants aged 60 years and older in the United States.

Is doxercalciferol the same as Hectorol?

Yes, doxercalciferol is also known as Hectorol. Both names refer to the same drug substance, which is being investigated by Bone Biologics Corp for its potential to improve bone mineral density in postmenopausal women with osteopenia.