deltatrials
Completed OBSERVATIONAL NCT01613144

OsseoScrew Versus Fenestrated Pedicle Screws Augmented With Polymethylmethacrylate (EVOLVE)

Expandable Pedicle Screws Versus Fenestrated Pedicle Screws Augmented With Polymethylmethacrylate (PMMA): Complications and Clinical Outcomes in Patients With Osteoporosis or Poor Bone Quality

Sponsor: Alphatec Spine, Inc.

Conditions Osteoporosis Poor Bone Quality
Interventions OsseoScrew Spinal Fixation System
Updated 9 times since 2017 Last updated: Feb 22, 2022 Started: May 31, 2012 Primary completion: Feb 12, 2017 Completion: Nov 8, 2017
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT01613144, this observational or N/A phase trial focuses on Osteoporosis and Poor Bone Quality and remains completed. Sponsored by Alphatec Spine, Inc., it has been updated 9 times since 2012, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Jan 2017 – ~Feb 2018 · 13 months · monthly snapshotActive Not Recruiting~Feb 2018 – ~Apr 2018 · 59 days · monthly snapshotUnknown Status~Apr 2018 – ~Jun 2018 · 2 months · monthly snapshotUnknown Status~Jun 2018 – ~Jan 2021 · 31 months · monthly snapshotUnknown Status~Jan 2021 – ~Mar 2022 · 14 months · monthly snapshotUnknown Status~Mar 2022 – ~Jul 2024 · 28 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 10 months · monthly snapshotCompleted

Change History

9 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed

  2. Sep 2024 — Sep 2025 [monthly]

    Completed

  3. Jul 2024 — Sep 2024 [monthly]

    Completed

  4. Mar 2022 — Jul 2024 [monthly]

    Completed

    Status: Unknown Status → Completed

  5. Jan 2021 — Mar 2022 [monthly]

    Unknown Status

▶ Show 4 earlier versions

  1. Jun 2018 — Jan 2021 [monthly]

    Unknown Status

  2. Apr 2018 — Jun 2018 [monthly]

    Unknown Status

    Phase: NA → None

  3. Feb 2018 — Apr 2018 [monthly]

    Unknown Status NA

    Status: Active Not Recruiting → Unknown Status

  4. Jan 2017 — Feb 2018 [monthly]

    Active Not Recruiting NA

    First recorded

May 2012

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Alphatec Spine, Inc.
Data source: Alphatec Spine, Inc.

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations