NCT00668941

Brief Summary

Osteoporosis is a disease that affects millions of individuals in the United States and abroad. It leads to decreased bone mass and causes an increased risk of fracture. This study will compare continuous versus cyclic treatment with teriparatide combined with alendronate, another drug for osteoporosis, or teriparatide alone in women with osteoporosis.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
140

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Sep 2005

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2005

Completed
2.7 years until next milestone

First Submitted

Initial submission to the registry

April 27, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 29, 2008

Completed
7.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2016

Completed
1.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2017

Completed
Last Updated

August 10, 2017

Status Verified

August 1, 2017

Enrollment Period

10.4 years

First QC Date

April 27, 2008

Last Update Submit

August 9, 2017

Conditions

Keywords

Bone DensityBone TurnoverHistomorphometry

Outcome Measures

Primary Outcomes (1)

  • Bone density

    24 and 48 months

Secondary Outcomes (2)

  • Histomorphometry of iliac crest bone biopsies

    Measured at Week 7 and Month 7

  • HRpQCT (tibia, radius) and QCT (spine and hip)and FEA of these QCT scans

    48 months

Study Arms (6)

1

EXPERIMENTAL

Participants in this group will have been treated with alendronate for at least 1 year prior to study entry. Upon study entry, they will receive a continuous regimen of daily teriparatide (20 mcg subcutaneously) for 48 months, in addition to alendronate. Biopsies will be performed at Week 7 or Month 7.5. The participants will then have the option to be followed while taking alendronate alone for 24-48 months.

Drug: TeriparatideDrug: AlendronateDietary Supplement: CalciumDietary Supplement: Vitamin D3

2

EXPERIMENTAL

Participants in this group will have been treated with alendronate for at least 1 year prior to study entry. Upon study entry, they will receive a cyclical regimen of teriparatide, in addition to alendronate. Teriparatide will be administered subcutaneously in 20-mcg doses daily for 3 months. They will receive no teriparatide for the following 3 months, and then teriparatide treatment will continue for the 3 months after that. This schedule will continue for 24 months with an aption to all participants to continue cyclic teriparatide for another 24 months. Biopsies will be performed at Week 7 or Month 7.5.

Drug: TeriparatideDrug: AlendronateDietary Supplement: CalciumDietary Supplement: Vitamin D3

3

ACTIVE COMPARATOR

Participants in this group will have been treated with alendronate for at least 1 year prior to study entry. Upon study entry, they will continue taking alendronate alone. Biopsies will be performed at Week 7 and then participants in this group will be offered teriparatide as part of Group 2 or 3.

Drug: AlendronateDietary Supplement: CalciumDietary Supplement: Vitamin D3

4

EXPERIMENTAL

Participants in this group will receive a continuous regimen of teriparatide (20 mcg delivered subcutaneously) daily for 48 months. Biopsies will be performed at Week 7 or Month 7.5. At 24 months the participants will then have the option of taking alendronate and remaining in the study for another 24 months.

Drug: TeriparatideDietary Supplement: CalciumDietary Supplement: Vitamin D3

5

EXPERIMENTAL

Participants in this group will receive a cyclical regimen of teriparatide. Teriparatide will be administered subcutaneously in 20-mcg doses daily for 3 months. They will receive no teriparatide for the following 3 months, and then teriparatide treatment will continue for the 3 months after that. This schedule will continue for 24 months with an option to all participants to continue cyclic teriparatide for another 24 months. Biopsies will be performed at Week 7 or Month 7.5.

Drug: TeriparatideDietary Supplement: CalciumDietary Supplement: Vitamin D3

6

ACTIVE COMPARATOR

Participants in this group will take only calcium and vitamin D supplements. Biopsies will be performed at Week 7. Participants will then be offered the standard care for osteoporosis or they may enter the study in Group 4 or 5.

Dietary Supplement: CalciumDietary Supplement: Vitamin D3

Interventions

Teriparatide will be given subcutaneously in 20-mcg doses either continuously or cyclically.

1245

Participants will take 70 mg per week of alendronate for 48 months.

123
CalciumDIETARY_SUPPLEMENT

Calcium supplements will be administered in varied amounts for all participants, but each participant will take enough to bring her total daily calcium intake to 1,200 mg.

123456
Vitamin D3DIETARY_SUPPLEMENT

Vitamin D3 supplements will be administered in varied amounts for all participants, but each participant will take enough to bring her total daily intake to 1,200 mg.

123456

Eligibility Criteria

Age45 Years - 85 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of osteoporosis or T score below -2 plus one or more osteoporosis related fractures
  • Two measurable vertebrae between L1 and L4
  • Willing to undergo a single iliac crest biopsy after administration of 4 tetracycline labels

You may not qualify if:

  • Secondary causes of osteoporosis or presence of a skeletal disorder other than osteoporosis
  • Uses drugs likely to affect skeletal or calcium homeostasis
  • Multiple vertebral fractures or severe degenerative changes with fewer than two evaluable vertebrae
  • Unwilling to undergo a single iliac crest biopsy
  • History of allergy to tetracyclines, exposure to tetracyclines within the last year, or any remote long term use of tetracyclines
  • Current use of anti-resorptive medicines (other than alendronate for half the female participants)
  • Use of hormone therapy, estrogen therapy, raloxifene, or calcitonin within 6 months before study entry
  • Use of any bisphosphonate for more than 3 months within 2 years before study entry (only applies to participants in Groups 4, 5, and 6)
  • History of a kidney stone within 5 years before study entry or any history of multiple kidney stones
  • Hypercalcemia, hypercalciuria, or elevated parathyroid hormone (reduced 25-hydroxyvitamin D will be corrected prior to admission)
  • Esophageal ulceration or stricture or known hypersensitivity to bisphosphonates
  • History of external radiation therapy
  • Unlikely or unable to complete the study, as determined by the investigators
  • Illicit drug use or excessive alcohol consumption

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Helen Hayes Hospital

West Haverstraw, New York, 10993, United States

Location

Related Publications (2)

  • Ganapathy A, Nieves JW, Keaveny TM, Cosman F. Effects of four-year cyclic versus two-year daily teriparatide treatment on volumetric bone density and bone strength in postmenopausal women with osteoporosis. Bone. 2023 Feb;167:116618. doi: 10.1016/j.bone.2022.116618. Epub 2022 Nov 21.

  • Cosman F, Nieves JW, Roimisher C, Neubort S, McMahon DJ, Dempster DW, Lindsay R. Administration of teriparatide for four years cyclically compared to two years daily in treatment Naive and alendronate treated women. Bone. 2019 Mar;120:246-253. doi: 10.1016/j.bone.2018.10.020. Epub 2018 Oct 21.

MeSH Terms

Conditions

Osteoporosis

Interventions

TeriparatideAlendronateCalciumCholecalciferol

Condition Hierarchy (Ancestors)

Bone Diseases, MetabolicBone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Parathyroid HormonePeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and ProteinsDiphosphonatesOrganophosphonatesOrganophosphorus CompoundsOrganic ChemicalsMetals, Alkaline EarthElementsInorganic ChemicalsMetalsBlood Coagulation FactorsBiological FactorsCholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipids

Study Officials

  • Robert Lindsay, MD, PhD

    Helen Hayes Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Clinical Medicine

Study Record Dates

First Submitted

April 27, 2008

First Posted

April 29, 2008

Study Start

September 1, 2005

Primary Completion

February 1, 2016

Study Completion

November 1, 2017

Last Updated

August 10, 2017

Record last verified: 2017-08

Locations