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Cranial DefectsNCT06782711

Efficacy and Safety of 3D-Printed PEEK Skull Implants in Cranioplasty

A study testing cranioplasty and customized skull implants made of polyetheretheretherketone (PEEK) using 3D printing in people with Cranial Defects, run by CIMET SCIENTIFIC CORPORATION at 1 site in Mexico.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to determine the efficacy and safety of customized skull implants made of polyetheretheretherketone by three-dimensional printing in patients undergoing cranioplasty. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cranial Defects
What is being tested?
cranioplasty and customized skull implants made of polyetheretheretherketone (PEEK) using 3D printing
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteMexico
Study dates
Jan 2025to Sep 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults >18 years old.
  • Both sexes.
  • Who agree to participate and sign the informed consent form.
  • With loss of a bone segment.
  • Area of bone segment loss greater than 1 cm.
  • Glasgow Coma Scale score equal to or greater than 9.
  • Satisfactory preoperative evaluation

Who cannot join

  • Presence of local infection at the craniotomy site or any type of systemic infection at the time of medical evaluation and systemic infection at the time of medical evaluation and during surgery.
  • Presence of previous surgical instruments in the cranioplasty site.
  • Need to use two or more implants for the reconstruction.
  • The resulting angle between the tangential lines to the curvature of the implant and the tangent determined to the center of the implant, determined to the center of the implant, is greater than 50º.
  • Patients whose cranial morphology presents difficulties for the prosthesis design.
  • Presence of postoperative ossifications in the defect area.
Show all 20Show fewer
  • History of hypersensitivity to biomaterials.
  • Surgery at the same site within the 6 months prior to the study surgery.
  • Patients with any diagnosis that affects blood supply and bone quality.
  • Patients who have received chemotherapy or radiotherapy in the surgical region that ended within 6 months prior to the planned surgery or are scheduled for the next 12 weeks.
  • Diagnosis of malignant cranial tumor.
  • History of any status epilepticus.
  • Known history of hemophilia or other clinically significant coagulopathy.
  • Patients with uncontrolled diabetes according to, ADA criteria:
  • o fasting glucose ≥ 200 mg/dL, HbA1C ≥ 8.5% in the last 3 months.
  • Patients with a body mass index (BMI) ≥ 35 kg/m
  • History of steroid drugs at least 3 months before surgery.
  • Women breastfeeding or pregnant.
  • Inability to read and understand the participant's information.
  • Prior participation in any related investigational drug or device study within 30 days.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Mexico1 site
  • Centro de Investigación Clínica y Medicina Traslacional (CIMET)

    Guadalajara, Jalisco, 44340

Other trials in Mexico

About this study

Official title: Efficacy and Safety of Customized Skull Implants Made of Polyetheretheretherketone Using Three-dimensional Printing in Patients Undergoing Cranioplasty

The goal of this clinical trial is to determine the efficacy and safety of customized skull implants made of polyetheretheretherketone by three-dimensional printing in patients undergoing cranioplasty. The main question it aims to answer is:

  • Are customized skull implants made of polyetheretheretherketone using 3D printing effective and safe in patients undergoing cranioplasty?
Read more

Participants will:

  • The patient will be submitted to cranioplasty.
  • The patient will answer the neurological scales at each visit.
  • Keep a diary of their symptoms and concomitant medications
  • The study will be divided into 5 visits to the center, the surgical intervention and 3 telephone calls where patients will be followed up.
Read the detailed description

The aim of this study is to evaluate the efficacy and safety of personalized skull implants made of polyetheretheretherketone (PEEK) using three-dimensional printing in patients undergoing cranioplasty. This is a phase II clinical trial, with a single group of 30 patients who have suffered cranial bone loss. Specific objectives include analyzing the incidence of complications (infections, fractures, implant exposure), assessing functional recovery using recognized scales such as the Glasgow and Barthel scales, and measuring patient and surgeon aesthetic satisfaction over 12 months.

The design includes multiple follow-up visits, from surgery to one year after, where neurological, functional and cosmetic assessments will be performed.

The selection and exclusion criteria ensure the suitability of the participants, while the variables monitored allow a comprehensive analysis of the results, from cognitive functionality to surgical complications. This study seeks to provide scientific evidence to support the implementation of this technology in patients with cranial defects, improving both quality of life and post-surgical aesthetic and functional outcomes.

-Main inclusion criteria: Being older than 18 years, of both sexes. Loss of cranial bone segment greater than 1 cm². Glasgow Coma Scale (GCS) score equal or greater than 9. Satisfactory pre-surgical evaluation. Signed informed consent.

-Main exclusion criteria: Local infection at the craniotomy site or active systemic infection. Presence of previous surgical instruments at the cranioplasty site. Need to use two or more implants for reconstruction. History of coagulopathies, uncontrolled diabetes mellitus or body mass index (BMI) greater than 35.

Pregnant or lactating women.

-Main variables: Efficacy and safety: frequency of complications such as infections, fractures and implant exposure.

Cognitive functionality: Assessed by the Mini-Mental State Examination (MMSE). Functional independence: Measured with the Barthel index. Degree of disability: Assessed with the Modified Rankin Scale (mRS). Cosmetic satisfaction: Patient and surgeon satisfaction. Adverse events: Incidence during the 12 months of follow-up.

Conditions
Cranial Defects
Being tested
cranioplasty, customized skull implants made of polyetheretheretherketone (PEEK) using 3D printing
Keywords
Cranioplasty, Custom implants, Polyetheretheretherketone (PEEK), Three-dimensional (3D) printing, Neurosurgery, Cranial prostheses, Medical devices

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • cranioplastyProcedure or surgery

    In this pivotal study of a medical device, patients with bone loss undergo a computed tomography scan, which is used to create a three-dimensional model of the lesion. After validation, the model is printed using PEEK material, and subsequently, the skull is repaired through cranial reconstruction (cranioplasty).

  • customized skull implants made of polyetheretheretherketone (PEEK) using 3D printingDevice

    customized skull implants made of polyetheretheretherketone by three-dimensional printing in patients undergoing cranioplasty

Study groups in NCT06782711
Study groupRoleWhat they receive
cranioplasty using customized skull implants made of polyetheretheretherketone using 3D printingExperimentalAll participants will undergo cranioplasty using customized skull implants made of polyetheretheretherketone using 3D printing
Receives: Procedure: cranioplasty; Device: customized skull implants made of polyetheretheretherketone (PEEK) using 3D printing

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Frequency and causes of cranioplasty revisions

    Cranioplasty revision is performed when it is necessary to correct or adjust a previously placed implant, either due to complications adjust a previously placed implant, either due to complications, lack of integration of the implant or changes in the desired form and function.

    Measured: From enrollment to the end of treatment at 12 months

Secondary outcomes (10)
  1. Infection at the implant site

    Evaluate the frequency of infection at the implant site after cranioplasty.

    Measured: From enrollment to 3 months after surgery

  2. Frequency of surgery-associated infections

    These are infections that develop as a direct result of a surgical procedure. These infections can affect various parts of the body and are not necessarily limited to the implant site.

    Measured: From enrollment to 3 months after surgery

  3. Frequency of implant exposure

    It refers to the fact that the implants placed in the cranial region, in reconstructive or reparative surgeries of the skull, are visible or accessible in some way.

    Measured: From enrollment to the end of treatment at 12 months

  4. Frequency and type of implant fractures

    Refers to the rupture or cracking of devices implanted in the cranial region, used in reconstructive or reparative surgeries of the skull.

    Measured: From enrollment to the end of treatment at 12 months

  5. Level of consciousness

    Establish the level of consciousness with the Glasgow Coma Scale (GCS).

    Measured: From enrollment to 3 months after surgery

  6. Cognitive function

    Measure cognitive function with the Mini-Mental State Examination (MMSE).

    Measured: From enrollment to the end of treatment at 12 months

  7. Functional independence

    Evaluate functional independence with the Barthel Index.

    Measured: From enrollment to the end of treatment at 12 months

  8. Level of disability

    Evaluate the degree of disability with the modified Rankin Scale (mRS).

    Measured: From enrollment to the end of treatment at 12 months

  9. Cosmetic satisfaction

    Subjective scale to assess patient and surgeon satisfaction in terms of aesthetic and functional results after cranioplasty surgery.

    Measured: From enrollment to the end of treatment at 12 months

  10. Frequency of adverse incidents

    Measured: From enrollment to the end of treatment at 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jan 2025
  2. Study startJan 2025 (estimated)
  3. Primary completionOct 2025 (estimated)
  4. Study completionSep 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06782711
Sponsor's protocol ID
CIMET-2024-01
Status last verified
Jan 2025
First submitted
8 Jan 2025
Last updated
20 Jan 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: The decision to share IPD is currently 'Undecided' because further discussions and evaluations are needed regarding the feasibility, ethical considerations, and alignment with institutional policies. Once these factors are thoroughly assessed, a final determination will be made.

Publications

  • Yang J, Sun T, Yuan Y, Li X, Yu H, Guan J. Evaluation of titanium mesh cranioplasty and polyetheretherketone cranioplasty: protocol for a multicentre, assessor-blinded, randomised controlled trial. BMJ Open. 2019 Dec 3;9(12):e033997. doi: 10.1136/bmjopen-2019-033997.

    PubMed 31796495
  • Sharma N, Aghlmandi S, Dalcanale F, Seiler D, Zeilhofer HF, Honigmann P, Thieringer FM. Quantitative Assessment of Point-of-Care 3D-Printed Patient-Specific Polyetheretherketone (PEEK) Cranial Implants. Int J Mol Sci. 2021 Aug 7;22(16):8521. doi: 10.3390/ijms22168521.

    PubMed 34445228
  • Mozaffari K, Rana S, Chow A, Mahgerefteh N, Duong C, Sheppard JP, Phillips HW, Jarrahy R, Yang I. Customized polyetheretherketone (PEEK) implants are associated with similar hospital length of stay compared to autologous bone used in cranioplasty procedures. J Neurol Sci. 2022 Mar 15;434:120169. doi: 10.1016/j.jns.2022.120169. Epub 2022 Jan 24.

    PubMed 35134672
  • Henry J, Amoo M, Taylor J, O'Brien DP. Complications of Cranioplasty in Relation to Material: Systematic Review, Network Meta-Analysis and Meta-Regression. Neurosurgery. 2021 Aug 16;89(3):383-394. doi: 10.1093/neuros/nyab180.

    PubMed 34100535
  • Csamer L, Csernatony Z, Novak L, Kovari VZ, Kovacs AE, Soosne Horvath H, Mano S. Custom-made 3D printing-based cranioplasty using a silicone mould and PMMA. Sci Rep. 2023 Jul 25;13(1):11985. doi: 10.1038/s41598-023-38772-9.

    PubMed 37491550
  • Basgul C, Yu T, MacDonald DW, Siskey R, Marcolongo M, Kurtz SM. Structure-Property Relationships for 3D printed PEEK Intervertebral Lumbar Cages Produced using Fused Filament Fabrication. J Mater Res. 2018 Jul 27;33(14):2040-2051. doi: 10.1557/jmr.2018.178. Epub 2018 Jun 18.

    PubMed 30555210
  • Alkhaibary A, Alharbi A, Alnefaie N, Oqalaa Almubarak A, Aloraidi A, Khairy S. Cranioplasty: A Comprehensive Review of the History, Materials, Surgical Aspects, and Complications. World Neurosurg. 2020 Jul;139:445-452. doi: 10.1016/j.wneu.2020.04.211. Epub 2020 May 6.

    PubMed 32387405

Questions about this trial

What is this clinical trial studying?

A study testing cranioplasty and customized skull implants made of polyetheretheretherketone (PEEK) using 3D printing in people with Cranial Defects, run by CIMET SCIENTIFIC CORPORATION at 1 site in Mexico.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 20 Jan 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Mexico. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Frequency and causes of cranioplasty revisions (time frame: From enrollment to the end of treatment at 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06782711, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jan 2025.

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