Clinical trial Recruiting at 8 sites Observational Ages 50 to 85 Women only

Evaluating treatments after osteoanabolic therapy for osteoporosis

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

Run by 424 General Military Hospital · NCT06164795 · Data updated 2026-11-12

This study is testing different follow-up treatments for Caucasian women with severe osteoporosis after they’ve finished a specific therapy to see which one helps improve their bone health the most.

More Osteoporosis, Postmenopausal trials

Quick facts

Study typeObservational
Ages50 Years to 85 Years
SexWomen only
Enrollment150 (estimated)
Sponsor424 General Military Hospital
Academic / other
Drugs / interventionsromosozumab, denosumab
Locations8 sites (Athens and 7 other locations)
StatusRecruiting
StartedNovember 25, 2023
Main results expectedJune 1, 2027
Study endsDecember 2027
Registry record updatedJuly 22, 2026
Trial IDNCT06164795 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are postmenopausal women with severe osteoporosis who have recently completed treatment with romosozumab or teriparatide.

Probably not a fit

Patients with other bone diseases, uncontrolled endocrine diseases, or those with certain medical conditions such as liver failure or cancer may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to assess the effectiveness of sequential treatments in Caucasian women with severe postmenopausal osteoporosis who have completed therapy with romosozumab or a PTH analog. Participants will be assigned to receive either zoledronate, denosumab, or teriparatide/abaloparatide based on their previous treatment. The study will monitor changes in bone mineral density (BMD) at the lumbar spine and other sites over 12 months, along with tracking bone turnover markers and incident fractures. It is a multicenter, international effort designed to provide insights into optimal post-osteoanabolic treatment strategies.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment protocols for postmenopausal osteoporosis, enhancing bone health and reducing fracture risk.

How similar studies have gone: While this approach is observational, similar studies evaluating sequential therapies after osteoanabolic treatments have shown promise in improving patient outcomes.

Who can join: the full rules

Show full inclusion / exclusion criteria
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

Where it's running

  • 251 Airforce & VA General Hospital
    Athens, Greece
    Recruiting
  • First Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens
    Athens, Greece
    Recruiting
  • , KAT General Hospital
    Athens, Greece
    Recruiting
  • 424 General Military Hospital
    Thessaloniki, Greece
    Recruiting
  • Fondazione IRCCS Cà Granda-Ospedale Maggiore Policlinico
    Milan, Italy
    Recruiting
  • Campus Bio-Medico University
    Roma, Italy
    Recruiting
Show 2 more locations
  • Department of Medicine, Surgery and Neurosciences, University of Siena
    Siena, Italy
    Recruiting
  • University-Hospital S. Maria della Misericordia
    Udine, Italy
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.