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Sequential Therapies After Osteoanabolic Treatment

Efficacy of Sequential Therapies After Osteoanabolic Treatment in Postmenopausal Women With Severe Osteoporosis: the Sequential Treatment After Romosozumab and Teriparatide/Abaloparatide (START) Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06164795
Acronym
START
Enrollment
150
Registered
2023-12-11
Start date
2023-11-25
Completion date
2027-12-01
Last updated
2026-07-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoporosis, Postmenopausal

Brief summary

12-month prospective, open-label, multicenter, international, observational study evaluating sequential treatments after osteoanabolics

Detailed description

Caucasian women with severe postmenopausal osteoporosis who have completed their course with romosozumab or a PTH analog will be assigned to one of the following 3 options: i) zoledronate 5mg infusion or ii) denosumab subcutaneous injections or iii) teriparatide or abaloparatide (for those previously treated with romosozumab) or romosozumab (for those previously treated with teriparatide or abaloparatide). Endpoints: Primary: BMD changes at the lumbar spine at 12 months. Secondary: i) BMD changes at the non-dominant femoral neck and total hip at 12 and 24 months; ii) changes at levels of bone turnover markers throughout the study; iii) incident fractures: vertebral (clinical and morphometric identified on VFA scans) and non-vertebral

Interventions

DRUGZoledronate

intravenous infusion

DRUGDenosumab

subcutaneous injection

DRUGTeriparatide

subcutaneous injection

DRUGRomosozumab

subcutaneous injection

daily subcutaneous injection

Sponsors

424 General Military Hospital
Lead SponsorOTHER
Laikο General Hospital, Athens
CollaboratorOTHER
251 Hellenic Air Force & VA General Hospital
CollaboratorOTHER
KAT Hospital of Athens
CollaboratorUNKNOWN
Campus Biomedico - Roma
CollaboratorUNKNOWN
Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico Milano
CollaboratorUNKNOWN
Azienda Ospedaliero Universitaria, Santa Maria della Misericordia di Udine, Italy
CollaboratorOTHER
University of Siena
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
50 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

• Postmenopausal women treated with severe osteoporosis completing their course with romosozumab or teriparatide

Exclusion criteria

* a bone disease other than postmenopausal osteoporosis * use of medications other than romosozumab or teriparatide affecting bone metabolism during the last 12 months before entering the study * creatinine clearance \<60 mL/min/1.73 m2 * liver failure * any type of cancer * uncontrolled endocrine diseases * serum 25-hydroxy vitamin D (25-OHD) concentrations lower than 20 ng/mL (50 nmol/L) * hypersensitivity to denosumab or zoledronate or teriparatide or romosozumab or any of the excipients

Design outcomes

Primary

MeasureTime frameDescription
lumbar spine bone mineral densitybaseline to 12 monthsbone mineral density changes at the lumbar spine at 12 months measured by dual-energy absorptiometry (DXA)

Secondary

MeasureTime frameDescription
femoral neck bone mineral densitybaseline to 12 monthsbone mineral density changes at the femoral neck at 12 months measured by dual-energy absorptiometry (DXA)
total hip bone mineral densitybaseline to 12 monthsbone mineral density changes at the total hip at 12 months measured by dual-energy absorptiometry (DXA)
P1NPbaseline, 3 months, 6 months, 12 monthsbone turnover (formation) marker
CTxbaseline, 3 months, 6 months, 12 monthsbone turnover (resorption) marker
Fractures12 monthsincident fractures: vertebral (clinical and morphometric identified on VFA scans) and non-vertebral

Countries

Greece, Italy

Contacts

CONTACTAthanasios D Anastasilakis, PhD
a.anastasilakis@gmail.com2310381431
CONTACTJohn Carey, Prof
john.j.carey@universityofgalway.ie
STUDY_CHAIRWillem Lems, Prof

ECTS Clinical Action Group

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 23, 2026