Ignite Creation Date:
2024-05-05 @ 12:10 PM
Last Modification Date:
2024-10-26 @ 9:21 AM
Study NCT ID:
NCT00262392
Status:
WITHDRAWN
Last Update Posted:
2015-03-10
First Post:
2005-12-05
Brief Title:
Study of Pamidronate for the Prevention of Heterotopic Ossification
Sponsor:
University Hospital Basel Switzerland
Organization:
University Hospital Basel Switzerland
Study Overview
Official Title:
Study Into the Effect of Pamidronate for the Prevention of Heterotopic Ossification in High-risk Patients A Randomized Controlled Trial
Status:
WITHDRAWN
Status Verified Date:
2015-03
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to determine whether Bisphosphonates in comparison to radiation therapy are effective in the prophylaxis and treatment of heterotopic ossification in high risk patients
Detailed Description:
BACKGROUND The acquired form of heterotopic ossification HO is the most common type of extraskeletal ossification and usually precipitated by a trauma such as total hip arthroplasty THA or spinal cord injury After THA the incidence of HO is as high as 50 but may reach up to 90 in high risk populations leading to severe functional impairment with ankylotic loss of joint mobility Nonsteroidal anti-inflammatory drugs NSAIDs and external radiation have been used in preventing HO Specifically patients with surgical resection of HO at the hip have a high postoperative relapsing rate Best results were observed after prophylactic radiation treatment with disease recurrence in 33-45 of patients Data on the effect of bisphosphonates in the prevention of postoperative HO are scarce and mainly limited to the use of the first generation bisphosphonate etidronate In a retrospective observational study we observed a marked beneficial effect of pamidronate infusions none of the high risk patients with established HO undergoing surgical removal presented with disease recurrence
AIM We therefore aim to prospectively confirm our findings and to evaluate the efficacy of pamidronate for the prevention of recurrent HO after surgical removal of ipsilateral HO Clinical biochemical and radiological treatment outcome will be compared to standard clinical practice using preoperative external radiation
ENDPOINTS Primary endpoint is the radiological HO recurrence rate Secondary endpoints are the clinical functional and biochemical outcome as assessed by several clinical and laboratory markers
METHODS This prospective randomized trial will be carried out at the University Hospital in BaselBuderholz in collaboration with the Orthopedic Clinic of the Swiss Paraplegic Centre in Nottwil Patients who are admitted to the one of the participating orthopedic clinics for removal of HO at the hip will be included in the study A total number of 40 consecutive patients will be recruited recruitment phase 24 months and randomized in a bisphosphonate group treated with peri- and postoperative pamidronate infusions 10 mgkgday for 3 days and in a radiation group treated with external radiation with a single dose of 7 Gy within 24 hours prior to surgical intervention Additionally both groups will be treated with NSAIDs for 14 days
EXPECTED RESULTS We hypothesize that in treating patients at risk therapy with pamidronate will be superior in reducing the recurrence rate of established HO as compared to external radiation after surgical resection
SIGNIFICANCE Because of the high prevalence in selected risk patients and significant morbidity of HO this study will offer potential for improving the management of HO Our study is targeting patients with high risk to develop HO were highly effective prevention is still lacking Furthermore a diagnostic marker to identify patients at risk to develop HO would optimize disease management and would allow for early more successful treatment
AIM We therefore aim to prospectively confirm our findings and to evaluate the efficacy of pamidronate for the prevention of recurrent HO after surgical removal of ipsilateral HO Clinical biochemical and radiological treatment outcome will be compared to standard clinical practice using preoperative external radiation
ENDPOINTS Primary endpoint is the radiological HO recurrence rate Secondary endpoints are the clinical functional and biochemical outcome as assessed by several clinical and laboratory markers
METHODS This prospective randomized trial will be carried out at the University Hospital in BaselBuderholz in collaboration with the Orthopedic Clinic of the Swiss Paraplegic Centre in Nottwil Patients who are admitted to the one of the participating orthopedic clinics for removal of HO at the hip will be included in the study A total number of 40 consecutive patients will be recruited recruitment phase 24 months and randomized in a bisphosphonate group treated with peri- and postoperative pamidronate infusions 10 mgkgday for 3 days and in a radiation group treated with external radiation with a single dose of 7 Gy within 24 hours prior to surgical intervention Additionally both groups will be treated with NSAIDs for 14 days
EXPECTED RESULTS We hypothesize that in treating patients at risk therapy with pamidronate will be superior in reducing the recurrence rate of established HO as compared to external radiation after surgical resection
SIGNIFICANCE Because of the high prevalence in selected risk patients and significant morbidity of HO this study will offer potential for improving the management of HO Our study is targeting patients with high risk to develop HO were highly effective prevention is still lacking Furthermore a diagnostic marker to identify patients at risk to develop HO would optimize disease management and would allow for early more successful treatment
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| HO | None | None | None |