Trial Outcomes & Findings for Study on Autologous Osteoblastic Cells Implantation to Early Stage Osteonecrosis of the Femoral Head (NCT NCT01529008)

NCT ID: NCT01529008

Last Updated: 2022-06-24

Results Overview

A patient was considered as having responded to treatment if: * the WOMAC VA3.1 pain subscale score (Western Ontario and McMaster Universitie Visual Analogue scale) of the study treated hip improved from baseline by at leat the MCID (minimal clinically important difference ) the WOMAC VA3.1 pain subscale score is Visual score based on 10 cm and * the study treated hip did not progress to fractural stages (ARCO III or higher) as assessed by conventional X-ray

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

68 participants

Primary outcome timeframe

24 months

Results posted on

2022-06-24

Participant Flow

the Data Safety Monitoring Board recommended that the study be stopped for futility

Participant milestones

Participant milestones
Measure
Core Decompression/PREOB® Implantation
Core decompression/PREOB® implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of PREOB® into the necrotic lesion (single administration).
Core Decompression/Placebo Implantation
Core decompression/placebo implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of placebo into the necrotic lesion (single administration).
Screening
STARTED
35
33
Screening
COMPLETED
35
33
Screening
NOT COMPLETED
0
0
Bone Marrow Harvesting
STARTED
35
33
Bone Marrow Harvesting
COMPLETED
34
30
Bone Marrow Harvesting
NOT COMPLETED
1
3
Treatment
STARTED
34
30
Treatment
COMPLETED
25
29
Treatment
NOT COMPLETED
9
1
Efficacy Analysis
STARTED
25
29
Efficacy Analysis
COMPLETED
23
26
Efficacy Analysis
NOT COMPLETED
2
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Core Decompression/PREOB® Implantation
Core decompression/PREOB® implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of PREOB® into the necrotic lesion (single administration).
Core Decompression/Placebo Implantation
Core decompression/placebo implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of placebo into the necrotic lesion (single administration).
Bone Marrow Harvesting
Physician Decision
1
1
Bone Marrow Harvesting
Withdrawal by Subject
0
2
Treatment
Adverse Event
6
0
Treatment
Other
3
1
Efficacy Analysis
Protocol Violation
2
0
Efficacy Analysis
Physician Decision
0
1
Efficacy Analysis
Withdrawal by Subject
0
2

Baseline Characteristics

Study on Autologous Osteoblastic Cells Implantation to Early Stage Osteonecrosis of the Femoral Head

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Core Decompression/PREOB® Implantation
n=34 Participants
Core decompression/PREOB® implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of PREOB® into the necrotic lesion (single administration).
Core Decompression/Placebo Implantation
n=30 Participants
Core decompression/placebo implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of placebo into the necrotic lesion (single administration).
Total
n=64 Participants
Total of all reporting groups
Age, Continuous
46.4 years
STANDARD_DEVIATION 9.9 • n=5 Participants
45.4 years
STANDARD_DEVIATION 9.7 • n=7 Participants
45.9 years
STANDARD_DEVIATION 9.7 • n=5 Participants
Sex: Female, Male
Female
7 Participants
n=5 Participants
4 Participants
n=7 Participants
11 Participants
n=5 Participants
Sex: Female, Male
Male
27 Participants
n=5 Participants
26 Participants
n=7 Participants
53 Participants
n=5 Participants
Race/Ethnicity, Customized
Ethnic origin · Caucasian/White
30 Participants
n=5 Participants
29 Participants
n=7 Participants
59 Participants
n=5 Participants
Race/Ethnicity, Customized
Ethnic origin · Black
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Race/Ethnicity, Customized
Ethnic origin · Oriental/Asian
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Ethnic origin · Hispanic
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Ethnic origin · Other
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 24 months

Population: Full Analysis Set (FAS)

A patient was considered as having responded to treatment if: * the WOMAC VA3.1 pain subscale score (Western Ontario and McMaster Universitie Visual Analogue scale) of the study treated hip improved from baseline by at leat the MCID (minimal clinically important difference ) the WOMAC VA3.1 pain subscale score is Visual score based on 10 cm and * the study treated hip did not progress to fractural stages (ARCO III or higher) as assessed by conventional X-ray

Outcome measures

Outcome measures
Measure
Core Decompression/PREOB® Implantation
n=23 Participants
Core decompression/PREOB® implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of PREOB® into the necrotic lesion (single administration).
Core Decompression/Placebo Implantation
n=26 Participants
Core decompression/placebo implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of placebo into the necrotic lesion (single administration).
Percentage of Treatment Responders
60.9 percentage of treatment responders
Interval 38.5 to 80.3
69.2 percentage of treatment responders
Interval 48.2 to 85.7

Adverse Events

Core Decompression/PREOB® Implantation

Serious events: 16 serious events
Other events: 22 other events
Deaths: 0 deaths

Core Decompression/Placebo Implantation

Serious events: 18 serious events
Other events: 25 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Core Decompression/PREOB® Implantation
n=25 participants at risk
Core decompression/PREOB® implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of PREOB® into the necrotic lesion (single administration).
Core Decompression/Placebo Implantation
n=29 participants at risk
Core decompression/placebo implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of placebo into the necrotic lesion (single administration).
Injury, poisoning and procedural complications
Fall
4.0%
1/25 • Number of events 1 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
General disorders
disease progression
28.0%
7/25 • Number of events 9 • 24 months
48.3%
14/29 • Number of events 17 • 24 months
General disorders
Chest pain
4.0%
1/25 • Number of events 1 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Gastrointestinal disorders
Colitis ulcerative
8.0%
2/25 • Number of events 2 • 24 months
0.00%
0/29 • 24 months
General disorders
non-cardiac chest pain
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Gastrointestinal disorders
Diarrhoea
4.0%
1/25 • Number of events 2 • 24 months
0.00%
0/29 • 24 months
Musculoskeletal and connective tissue disorders
Arthralgia
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Musculoskeletal and connective tissue disorders
Bursitis
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Musculoskeletal and connective tissue disorders
Lumbar spinal stenosis
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Musculoskeletal and connective tissue disorders
Muscle spasms
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Musculoskeletal and connective tissue disorders
Osteoarthritis
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Musculoskeletal and connective tissue disorders
Osteonecrosis
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Gastrointestinal disorders
Gastrointestinal haemorrhage
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Gastrointestinal disorders
Haematemesis
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Gastrointestinal disorders
Umbilical Hernia
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Gastrointestinal disorders
Vomiting
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Injury, poisoning and procedural complications
Procedural pain
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Psychiatric disorders
Anxiety
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Psychiatric disorders
Breathing-related sleep disorder
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Psychiatric disorders
Depression
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Infections and infestations
Apendicitis
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Infections and infestations
Campylobacter Infection
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Infections and infestations
Cholangitis Infective
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Infections and infestations
Cytomegalovirus Gastroenteritis
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Renal and urinary disorders
Acute renal kidney
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Renal and urinary disorders
Renal failure
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Social circumstances
Hip Arthroplasty
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Surgical and medical procedures
Removal of internal fixation
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Cardiac disorders
Atrial fibrillation
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Cardiac disorders
Atrial flutter
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 2 • 24 months
Hepatobiliary disorders
Bile duct stenosis
4.0%
1/25 • Number of events 2 • 24 months
0.00%
0/29 • 24 months
Immune system disorders
Lung transplant rejection
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Investigations
Transplant evaluation
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Metabolism and nutrition disorders
Dehydration
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Nervous system disorders
Amnesia
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Pregnancy, puerperium and perinatal conditions
Pregnancy
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Respiratory, thoracic and mediastinal disorders
Dyspnoea
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months
Skin and subcutaneous tissue disorders
Angiodema
0.00%
0/25 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Infections and infestations
Lung infection
4.0%
1/25 • Number of events 1 • 24 months
0.00%
0/29 • 24 months

Other adverse events

Other adverse events
Measure
Core Decompression/PREOB® Implantation
n=25 participants at risk
Core decompression/PREOB® implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of PREOB® into the necrotic lesion (single administration).
Core Decompression/Placebo Implantation
n=29 participants at risk
Core decompression/placebo implantation: All patients will undergo a core decompression under general anesthesia combined with the implantation of placebo into the necrotic lesion (single administration).
Musculoskeletal and connective tissue disorders
Arthralgia
48.0%
12/25 • Number of events 18 • 24 months
44.8%
13/29 • Number of events 19 • 24 months
Musculoskeletal and connective tissue disorders
Osteonecrosis
12.0%
3/25 • Number of events 3 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Musculoskeletal and connective tissue disorders
Back pain
4.0%
1/25 • Number of events 1 • 24 months
6.9%
2/29 • Number of events 2 • 24 months
Musculoskeletal and connective tissue disorders
Joint swelling
4.0%
1/25 • Number of events 1 • 24 months
6.9%
2/29 • Number of events 2 • 24 months
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
4.0%
1/25 • Number of events 1 • 24 months
6.9%
2/29 • Number of events 2 • 24 months
Musculoskeletal and connective tissue disorders
Tendonitis
0.00%
0/25 • 24 months
10.3%
3/29 • Number of events 3 • 24 months
General disorders
Pain
4.0%
1/25 • Number of events 1 • 24 months
6.9%
2/29 • Number of events 2 • 24 months
General disorders
Systemic Inflammatory Response Syndrome
4.0%
1/25 • Number of events 1 • 24 months
6.9%
2/29 • Number of events 2 • 24 months
Infections and infestations
Nasopharyngitis
16.0%
4/25 • Number of events 4 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Injury, poisoning and procedural complications
Procedural pain
0.00%
0/25 • 24 months
6.9%
2/29 • Number of events 2 • 24 months
Psychiatric disorders
Insomnia
8.0%
2/25 • Number of events 2 • 24 months
3.4%
1/29 • Number of events 1 • 24 months
Blood and lymphatic system disorders
Microcytic anaemia
12.0%
3/25 • Number of events 3 • 24 months
0.00%
0/29 • 24 months

Additional Information

Chief Medical Officer

Bone Therapeutics

Phone: +32 493 09 73 66

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place