Clinical trial NCT02656628: Observational Patient Registry of the Dynamic Locking Screws
Official title: A Multi-Center Prospective, Observational Patient Registry of the Dynamic Locking Screws in Metaphyseal and Diaphyseal Shaft Fractures of the Humerus, Femur and Tibia
Study type: OBSERVATIONAL
Overall status: WITHDRAWN
Conditions: Proximal or Diaphyseal Humerus Fracture
Diaphyseal or Distal Femur Fracture
Diaphyseal, Distal or Proximal Tibia Fracture
Lead sponsor: Synthes GmbH
Sponsor class: INDUSTRY
Collaborators: name: Synthes Australia Pty Ltd
First posted: 2016-01-15
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients who meet the in- and exclusion criteria and have signed an informed patient consent prior to surgery will be included.

Brief summary: The purpose of this multi-center patient registry is to obtain first clinical results and to assess short and mid-term clinical outcome data of patients treated with DLS.

Detailed description: This is a multicenter, open-label non-comparative, observational patient registry conducted at 15 to 20 clinical sites.

Patients who have agreed participate and have signed an informed patient consent prior to surgery will be included. Follow-up visits will be performed at the following time points: baseline (pre-and postoperative), at 6 weeks, 12 weeks, 6 months, and (12) months (for patients with insufficient signs of healing at the 6 months visit; otherwise preferable visit).

To minimize potential bias of the observational study design, a reasonable sample of investigators and sites (15-20 sites), and patients (up to 200 patients) are selected. Furthermore, data will be analyzed by an independent Contract Research Organization, and objective outcome measures are used eg, WOMAC, QuickDASH, fracture healing.

All data collected on the electronic case report forms (eCRF) for this registry will be de-identified. Each patient will be assigned to a unique reference number. eCRFs are confidential documents and will only be available to the Sponsor (including Sponsor delegates, like clinical research associates (CRAs), the Investigator, the investigation statistician, and if requested to the advisory committee, ethical committees and regulatory authorities. The key to link the unique reference number to the patient will be kept in the investigation file by the Principal Investigator for each investigation site.

Registry procedures:

Baseline visit/Pre-Op:

* Potential study patients are informed about the study by the Investigator (or delegate)
* All inclusion and exclusion criteria are checked to determine if the patient can participate in the registry
* Prior to any registry-specific examination, the patient gives written informed consent (IC) and the IC form is placed into the patient's medical record. A copy of the IC and the written patient information is handed over to the patient
* Collection of demographic data, medical history (Charlson Comorbidity Score(49;50)), concomitant medications, fracture characteristics and accident/injury information
* Collection of X-rays: all imaging procedures are organized and prepared for the transmission to the Clinical Research Organization (CRO) as outlined in the imaging manual
* Documentation of study-specific questionnaires (QuickDASH, WOMAC, EQ-5D) based on the reported pre-injury status
* The data are entered into the eCRF

Intra- and postoperative procedures:

All surgical procedures will be done per the standard of care at the treating institution. Aftercare and rehabilitation procedures will be left to the surgeons' discretion.

Follow-up visits:

* Post-operative: before hospital discharge
* 6 weeks (7 - 56 days)
* 12 weeks (57 - 120 days)
* 6 month (121 -270 days)
* (12 month (271 - 425)): for patients with insufficient signs of healing at the 6 months visit; otherwise preferable visit

The following procedures are performed during these visits:

* Assessment of fracture healing
* Assessment of physical function and symptoms (QuickDASH\*, WOMAC\*, weight bearing or load on the affected extremity status)
* Screening for AE or serious AE including documentation and reporting
* Documentation and reporting of secondary surgical interventions due to device or procedure related Adverse events
* Assessment of health-related quality of life (EQ-5D\*)
* Collection of X-rays
* Data entry into the eCRF.
* Appointment for the next visit

Clinical Investigation Administration:

The clinical investigator(s) will permit registry-related monitoring, audits, ethics committee review and regulatory inspection(s), thereby providing direct access to the facilities, personnel and to source data/documents on request. The Sponsor's staff or representatives will closely monitor the conduct of the registry so that any questions and problems that may arise can be promptly resolved. Such monitoring will also ensure that the registry is conducted in accordance with this registry protocol, including all amendments and with the requirements of national regulations and ISO 14155.

Monitoring will involve periodic visits, by the Sponsor's representative to the investigation site to verify compliance with all requirements of the registry, to observe procedures and to audit the registry for quality control purposes (presence of required documents, informed consent and for comparison of the case report forms with source data). The frequency of these periodic visits will depend on the enrolment rate and whether there are any difficulties in running the registry in a given site. A monitoring plan describes all monitoring procedures in detail.

On-site audits may take place and are independent of and separate from routine monitoring or quality control functions. They may take place at various stages during the registry. The clinical investigator/s will be informed in writing and/or by telephone in a timely manner that an independent audit is to take place along with the scope of the audit, a date and timelines involved. Whenever possible, the auditor will be accompanied by the responsible CRA or Sponsor's representative. The auditor may stay at the registry site as long as deemed necessary.

In order to ensure quality of the data, all relevant registry documents (registry protocol, case report forms, patient information) will be reviewed by a person not involved in the set-up and management of the registry. The results of the audit will be documented in an audit report and any corrective actions needed from the Investigator communicated to the Principal Investigator.

In general, data collected in the hospital patient charts are considered as source data. In order to facilitate data collection at the investigation sites, a set of source worksheets (SW) based on all variables outlined in the registry protocol will be provided. Data that is not routinely documented in the hospital chart is collected on these worksheets and therefore, the worksheet is considered to be the source document and has to be kept at the investigation site accordingly. Data collected on patient and surgeon questionnaires are also considered as source data.

Source data will be entered by site staff into a web-based Electronic Data Capture (EDC) system and managed according to a detailed pre-specified Data Management Plan. The Investigator or site coordinator shall complete the eCRF in a timely manner after a patient's visit ie, not later than 10 days after the occurrence of a documentable event.

Completed eCRFs will be verified against source data (ie, source data verification).

Investigators shall provide access to the hospital files and any other medical source document containing patient's clinical/medical information, to the company representative to allow source document verification.

The clinical Investigator is asked to keep a list with full names of all patients participating in the registry, giving reference to the patient records.

After the completion of the registry, an electronic copy of the data collected at each investigation clinic will be provided.

Radiographic images will be collected as per standard imaging procedures (standard of care) at the investigation site following patient examinations at discharge, 6 and 12 weeks, 6 and (12) months. Digital de-identified images will be sent to GCTM. Transfer of imaging data to GCTM and handling of the de-identified imaging data at GCTM will be performed according to GCTM standard procedures. More details are described in the imaging manual.

Images relevant for the registry will be retained de-identified electronically as part of the TMF in accordance with relevant guidelines.

The central registry database will be monitored by GCTM representative and queries will be made on a regular basis to each participating site as needed to ensure the quality and integrity of the data.

Data management will be performed by GCTM. Data handling and protection are conducted according to the guidelines of International Organization for Standardization (ISO) 14155 and applicable regulations.

A study specific Data Management Plan describes all details of data management and quality control of the study database at GCTM.

All trial-related essential documents (i.e. documents which individually and collectively permit evaluation of the conduct of an observational study and the quality of the data produced) will be retained by the clinical Investigator for at least 15 years after the end of the registry or as per national requirements. In case where this is not possible, the Sponsor will organize archiving facilities for the source data, in accordance with data confidentiality regulations. The Sponsor will inform the clinical investigator(s) in writing when these documents no longer need to be retained.

The Sponsor will retain specific essential documents in the Trial Master File (TMF) according to the relevant guidelines.

The Principal Investigator at each investigation site has the primary responsibility for patients' treatment, follow-up and overall compliance with the registry protocol, national regulatory requirements and the requirements of ISO 14155. It is advisable that the investigation site appoints a study coordinator who can become the primary point of contact for the CRA concerning overall registry administrative matters.

All Investigators using the DLS in the registry must be trained on the registry device, the registry protocol requirements, national regulations and requirements of the ISO 14155 prior to becoming involved in the patient registry and include their curriculum vitae (CV) in the Investigator file with a copy for the Sponsor' TMF. This training shall be documented by the CRA and/or the Principal Investigator on the site personnel log along with the authorized tasks the Principal Investigator delegates to each team member and an identification of signature.

The registry obligations for the Sponsor, the Clinical Research Associate, and the Investigator are followed as outlined in the ISO14155 and any applicable regulation, and reviewed with the Investigator prior to the start of the registry.

Eligibility criteria: Inclusion Criteria:

* Age: ≥18 years
* Any of the following fracture types:

  * Proximal or diaphyseal humerus fracture
  * Diaphyseal or distal femur fracture
  * Diaphyseal, distal or proximal tibia fracture
* Eligible for treatment with Synthes DLS and locked plate constructs (small or large fragments)
* Patients able and willing to sign informed consent form
* Patients able and willing to adhere to 12-months follow-up visits

Exclusion Criteria:

* Polytrauma
* Pregnant or nursing females
* Patients already participating in an investigational trial
* Patients who are not expected to survive the follow-up period

Primary outcomes:
measure: Radiographic callus formation and location of callus evaluation: Change over time
timeFrame: 6 weeks, 12 weeks, 6 months, and (12)* months
Secondary outcomes:
measure: Fracture union
timeFrame: 6 weeks, 12 weeks, 6 months, and (12)* months
measure: QuickDASH for patients with humerus fracture
timeFrame: Time point: 6 and 12 weeks, 6 and (12)* months
measure: WOMAC for patients with femur and tibia fractures
timeFrame: Time point: 6 and 12 weeks, 6 and (12)* months
measure: Full weight bearing or full use of the upper extremity
timeFrame: 6 and 12 weeks, 6 and (12)* months
measure: Adverse Events related to the device or procedure
timeFrame: intra-and postoperative; 6 and 12 weeks; 6 and (12)* months
measure: General adverse events not related to the device or procedure
timeFrame: postoperative; 6 and 12 weeks; 6 and (12)* months
measure: Secondary surgical interventions due to device or procedure related Adverse events
timeFrame: postoperative; 6 and 12 weeks; 6 and (12)* months
measure: Health related quality of life: EuroQoL (EQ-5D)
timeFrame: Baseline; 6 and 12 weeks; 6 and (12)* months
Other outcomes:
Locations:
city: Woolloongabba, Brisbane
country: Australia
facility: Princess Alexandra Hospital
state: Queensland
Study officials:
References: