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NCT01945593

BAX 855 Continuation

Completed Phase 3 Results posted Last updated 24 May 2021
What this trial tests

Phase 3 trial testing BAX855 in Hemophilia A in 218 participants. Completed in 2 March 2018.

Timeline
15 October 2013
Primary endpoint
2 March 2018
2 March 2018

Quick facts

Lead sponsorBaxalta now part of Shire
PhasePhase 3
StatusCompleted
Study typeINTERVENTIONAL
Allocationnon randomized
Designparallel
Maskingnone
Primary purposeprevention
Enrollment218
Start date15 October 2013
Primary completion2 March 2018
Estimated completion2 March 2018
Sites89 locations across Hong Kong, Japan, Malaysia, Taiwan, Poland, South Korea, Netherlands, Russia

Drugs / interventions tested

Conditions studied

Sponsor

Baxalta now part of Shire — full company profile →

Who can join

Under 75, any sex, with Hemophilia A. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Number of Participants With Inhibitory Antibodies to Factor VIII (FVIII) Primary · Baseline through end of study (53 months)

Inhibitory antibodies to Factor VIII were measured by the Nijmegen modification of the Bethesda assay. Inhibitors had to be confirmed by 2 separate assessments within a 2 to 4 week period from the central laboratory.

GroupValue95% CI
BAX 855: Age < 2 Years0
BAX 855: Age >= 2 to <12 Years0
BAX 855: Age >= 12 to <17 Years0
BAX 855: Age >= 17 Years0
Annualized Bleed Rate (ABR) - Spontaneous Bleeds Primary · Baseline through end of study (53 months)

The ABR was assessed based upon each individual bleeding episode. A bleeding episode was defined as subjective (pain consistent with a joint bleed) or objective evidence of bleeding which may or may not require treatment with FVIII. The ABR of spontaneous bleeds was reported separately for twice weekly, PK-t R, each of the every 5 days and every 7 days treatment regimens at the time of bleed.

Fixed-dose regimen (FDR): Every 5 Days
GroupValue95% CI
BAX 855: Age >= 12 to <17 Years1.3810.728 – 2.620
BAX 855: Age >= 17 Years1.1600.727 – 1.852
FDR: Every 7 Days
GroupValue95% CI
BAX 855: Age >= 12 to <17 Years0.6690.061 – 7.377
BAX 855: Age >= 17 Years1.9920.822 – 4.827
FDR: Twice Weekly
GroupValue95% CI
BAX 855: Age < 2 Years0.6140.154 – 2.454
BAX 855: Age >= 2 to <12 Years0.7920.518 – 1.210
BAX 855: Age >= 12 to <17 Years1.4390.942 – 2.200
BAX 855: Age >= 17 Years1.2930.913 – 1.832
PK-tailored regimen (PK-t R)
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years1.0780.450 – 2.581
BAX 855: Age >= 12 to <17 Years1.6020.270 – 9.486
BAX 855: Age >= 17 Years0.8680.365 – 2.067
Total Annualized Bleed Rate (ABR) Secondary · Baseline through end of study (53 months)

The ABR was assessed based upon each individual bleeding episode. A bleeding episode was defined as subjective (pain consistent with a joint bleed) or objective evidence of bleeding which may or may not require treatment with FVIII. Bleeding occurring at multiple locations related to the same injury (e.g., knee and ankle bleed following a fall) was counted as a single bleeding episode. Total annualized bleed rate (spontaneous and traumatic bleeding episodes) was reported.

GroupValue95% CI
BAX 855: Age < 2 Years1.855± 1.000
BAX 855: Age >= 2 to <12 Years2.370± 3.027
BAX 855: Age >= 12 to <17 Years3.175± 2.797
BAX 855: Age >= 17 Years2.426± 3.258
Overall Hemostatic Efficacy Rating of BAX 855 for Treatment of Breakthrough Bleeding Episodes Secondary · Baseline through end of study (53 months)

The participant or caregiver rated the overall treatment response at 24 (+/- 2) hours after the initiation of treatment using a 4-point efficacy rating scale as Excellent: Full relief of pain and cessation of objective signs of bleeding after a single infusion and no additional infusion is required for the control of bleeding; Good: Definite pain relief and/or improvement in signs of bleeding after a single infusion and possibly requires more than 1 infusion for complete resolution; Fair: Slight relief of pain and slight improvement in signs of bleeding after a single infusion and required mor

Excellent
GroupValue95% CI
BAX 855: Age < 2 Years3
BAX 855: Age >= 2 to <12 Years108
BAX 855: Age >= 12 to <17 Years98
BAX 855: Age >= 17 Years229
Good
GroupValue95% CI
BAX 855: Age < 2 Years3
BAX 855: Age >= 2 to <12 Years66
BAX 855: Age >= 12 to <17 Years49
BAX 855: Age >= 17 Years250
Fair
GroupValue95% CI
BAX 855: Age < 2 Years0
BAX 855: Age >= 2 to <12 Years5
BAX 855: Age >= 12 to <17 Years7
BAX 855: Age >= 17 Years36
None
GroupValue95% CI
BAX 855: Age < 2 Years0
BAX 855: Age >= 2 to <12 Years0
BAX 855: Age >= 12 to <17 Years1
BAX 855: Age >= 17 Years3
Not Reported
GroupValue95% CI
BAX 855: Age < 2 Years0
BAX 855: Age >= 2 to <12 Years13
BAX 855: Age >= 12 to <17 Years13
BAX 855: Age >= 17 Years26
BAX 855 Infusions Needed to Treat Bleeding Episodes Secondary · Baseline through end of study (53 months)

The BAX 855 infusions to treat each bleeding episode was determined by the participant, the participant's caregiver, and/or investigator, and was based upon the participant's response to treatment. A bleeding episode was defined as subjective (pain consistent with a joint bleed) or objective evidence of bleeding which may or may not require treatment with FVIII.

GroupValue95% CI
BAX 855: Age < 2 Years1.3± 0.52
BAX 855: Age >= 2 to <12 Years1.4± 1.14
BAX 855: Age >= 12 to <17 Years1.4± 1.81
BAX 855: Age >= 17 Years1.4± 1.10
Total Time Intervals Between Bleeding Episodes Secondary · Baseline through end of study (53 months)

The time interval between bleeding episodes was calculated based upon the date and time reported for each bleeding episode. A bleeding episode was defined as subjective (pain consistent with a joint bleed) or objective evidence of bleeding which may or may not require treatment with FVIII.

GroupValue95% CI
BAX 855: Age < 2 Years5.7004.074 – 7.327
BAX 855: Age >= 2 to <12 Years5.0510.756 – 14.867
BAX 855: Age >= 12 to <17 Years5.2321.228 – 14.571
BAX 855: Age >= 17 Years5.8180.617 – 22.686
Average Dose of BAX 855 Per Prophylactic Infusion Secondary · Baseline through end of study (53 months)

The average dose of BAX 855 per prophylactic infusion was reported.

GroupValue95% CI
BAX 855: Age < 2 Years50.748± 11.312
BAX 855: Age >= 2 to <12 Years53.855± 7.754
BAX 855: Age >= 12 to <17 Years53.356± 10.344
BAX 855: Age >= 17 Years49.727± 8.677
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) Secondary · Baseline through end of study (53 months)

An AE was any unfavorable and unintended sign (eg, an abnormal laboratory finding), symptom (eg, rash, pain, discomfort, fever, dizziness, etc.), disease (eg, peritonitis, bacteremia, etc.), or outcome of death temporally associated with the use of an investigational product (IP), whether or not considered causally related to the IP. A serious adverse event (SAE) was defined as an untoward medical occurrence that at any dose met one or more of the following criteria: outcome was fatal/resulted in death; was life-threatening; required inpatient hospitalization or resulted in prolongation of an

AE
GroupValue95% CI
BAX 855: Age < 2 Years3
BAX 855: Age >= 2 to <12 Years52
BAX 855: Age >= 12 to <17 Years18
BAX 855: Age >= 17 Years101
SAE
GroupValue95% CI
BAX 855: Age < 2 Years0
BAX 855: Age >= 2 to <12 Years7
BAX 855: Age >= 12 to <17 Years4
BAX 855: Age >= 17 Years22
Change From Baseline in Body Temperature Secondary · Baseline, end of study (53 months)

Change in body temperature at pre-infusion and post-infusion at end of the study was reported. In the below table, FDR refers to fixed dose regimen, PK-tR refers to PK tailored regimen at the time of sampling.

FDR: Pre-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-0.23± 0.208
BAX 855: Age >= 2 to <12 Years-0.05± 0.386
BAX 855: Age >= 12 to <17 Years-0.08± 0.409
BAX 855: Age >= 17 Years-0.01± 0.376
FDR: Post-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-0.07± 0.306
BAX 855: Age >= 2 to <12 Years-0.03± 0.394
BAX 855: Age >= 12 to <17 Years0.03± 0.375
BAX 855: Age >= 17 Years-0.02± 0.395
PK-tR: Pre-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years0.28± 0.255
BAX 855: Age >= 12 to <17 Years-0.08± 0.189
BAX 855: Age >= 17 Years-0.10± 0.595
PK-tR: Post-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years0.13± 0.362
BAX 855: Age >= 12 to <17 Years0.03± 0.263
BAX 855: Age >= 17 Years0.01± 0.593
Change From Baseline in Pulse Rate Secondary · Baseline, end of study (53 months)

Change in pulse rate at pre-infusion and post-infusion at end of the study was reported. In the below table, FDR refers to fixed dose regimen, PK-tR refers to PK tailored regimen at the time of sampling.

FDR: Pre-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-20.3± 21.22
BAX 855: Age >= 2 to <12 Years-0.1± 14.31
BAX 855: Age >= 12 to <17 Years-7.7± 9.07
BAX 855: Age >= 17 Years-0.4± 11.67
FDR: Post-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-13± 19.47
BAX 855: Age >= 2 to <12 Years2.4± 16.72
BAX 855: Age >= 12 to <17 Years-6.2± 8.55
BAX 855: Age >= 17 Years-1± 10.07
PK-tR: Pre-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years0.1± 9.13
BAX 855: Age >= 12 to <17 Years-1.8± 13.91
BAX 855: Age >= 17 Years4.0± 9.15
PK-tR: Post-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years-8.1± 14.94
BAX 855: Age >= 12 to <17 Years-4.5± 12.40
BAX 855: Age >= 17 Years-0.2± 7.31
Change From Baseline in Respiratory Rate Secondary · Baseline, end of study (53 months)

Change in respiratory rate at pre-infusion and post-infusion at end of the study was reported. In the below table, FDR refers to fixed dose regimen, PK-tR refers to PK tailored regimen at the time of sampling.

FDR: Pre-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-6.3± 4.73
BAX 855: Age >= 2 to <12 Years-0.8± 3.97
BAX 855: Age >= 12 to <17 Years-1.3± 1.67
BAX 855: Age >= 17 Years0.4± 2.85
FDR: Post-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-6.3± 4.73
BAX 855: Age >= 2 to <12 Years-1.3± 3.55
BAX 855: Age >= 12 to <17 Years-1.5± 1.85
BAX 855: Age >= 17 Years0.2± 2.88
PK-tR: Pre-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years1.5± 7.01
BAX 855: Age >= 12 to <17 Years-3.5± 5.74
BAX 855: Age >= 17 Years0.2± 2.79
PK-tR: Post-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years0.4± 5.73
BAX 855: Age >= 12 to <17 Years-3.3± 5.85
BAX 855: Age >= 17 Years0.3± 2.55
Change From Baseline in Blood Pressure Secondary · Baseline, end of study (53 months)

Change in systolic and diastolic blood pressure at pre-infusion and post-infusion at end of the study were reported. In the below table, FDR refers to fixed dose regimen, PK-tR refers to PK tailored regimen at the time of sampling, SBP refers to systolic blood pressure, DBP refers to diastolic blood pressure.

SBP - FDR: Pre-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-2.7± 1.53
BAX 855: Age >= 2 to <12 Years4.5± 11.82
BAX 855: Age >= 12 to <17 Years4.0± 9.25
BAX 855: Age >= 17 Years1.8± 12.87
SBP - FDR: Post-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years-8.7± 8.50
BAX 855: Age >= 2 to <12 Years3± 11.49
BAX 855: Age >= 12 to <17 Years2.7± 8.65
BAX 855: Age >= 17 Years-1.4± 12.08
SBP - PK-tR: Pre-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years0.9± 8.04
BAX 855: Age >= 12 to <17 Years3.5± 9.15
BAX 855: Age >= 17 Years1.0± 14.54
SBP - PK-tR: Post-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years-1.8± 8.61
BAX 855: Age >= 12 to <17 Years3.8± 6.4
BAX 855: Age >= 17 Years4.9± 15.14
DBP - FDR: Pre-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years0.7± 8.02
BAX 855: Age >= 2 to <12 Years1.8± 9.73
BAX 855: Age >= 12 to <17 Years1.4± 9.69
BAX 855: Age >= 17 Years1.8± 8.66
DBP - FDR: Post-Infusion
GroupValue95% CI
BAX 855: Age < 2 Years5.3± 8.74
BAX 855: Age >= 2 to <12 Years3± 9.72
BAX 855: Age >= 12 to <17 Years0.3± 6.43
BAX 855: Age >= 17 Years0.4± 9.21
DBP - PK-tR: Pre-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years2.3± 9.65
BAX 855: Age >= 12 to <17 Years0.5± 10.28
BAX 855: Age >= 17 Years1.5± 7.90
DBP - PK-tR: Post-Infusion
GroupValue95% CI
BAX 855: Age >= 2 to <12 Years-2.4± 6.67
BAX 855: Age >= 12 to <17 Years-2.3± 7.68
BAX 855: Age >= 17 Years-0.9± 7.93

Adverse events — posted to ClinicalTrials.gov

Time frame: From start of study drug administration up to 53 months. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

BAX 855: Age < 2 Years
Serious: 0/3 (0%)
Deaths: 0/3
BAX 855: Age >= 2 to <12 Years
Serious: 7/62 (11%)
Deaths: 0/62
BAX 855: Age >= 12 to <17 Years
Serious: 4/26 (15%)
Deaths: 1/26
BAX 855: Age >= 17 Years
Serious: 22/125 (18%)
Deaths: 0/125

Serious adverse events (43 terms)

ReactionSystemBAX 855: Age < 2 YearsBAX 855: Age >= 2 to <12 Y…BAX 855: Age >= 12 to <17 …BAX 855: Age >= 17 Years
HaemarthrosisMusculoskeletal and connective tissue disorders
HaematomaVascular disorders
PancreatitisGastrointestinal disorders
PyrexiaGeneral disorders
PneumoniaInfections and infestations
Urinary tract infectionInfections and infestations
AnaemiaBlood and lymphatic system disorders
Splenic haematomaBlood and lymphatic system disorders
Muscle haemorrhageMusculoskeletal and connective tissue disorders
Metastases to lungNeoplasms benign, malignant and unspecified (incl cysts and polyps)
Renal cancer metastaticNeoplasms benign, malignant and unspecified (incl cysts and polyps)
IleusGastrointestinal disorders
Abscess oralInfections and infestations
AppendicitisInfections and infestations
BacteraemiaInfections and infestations
CystitisInfections and infestations
Device related infectionInfections and infestations
Device related sepsisInfections and infestations
Incision site abscessInfections and infestations
LaryngitisInfections and infestations
Plasmodium falciparum infectionInfections and infestations
Skin infectionInfections and infestations
Streptococcal bacteraemiaInfections and infestations
TonsillitisInfections and infestations
Upper respiratory tract infectionInfections and infestations
Other adverse events (24 terms — click to expand)

ReactionSystemBAX 855: Age < 2 YearsBAX 855: Age >= 2 to <12 Y…BAX 855: Age >= 12 to <17 …BAX 855: Age >= 17 Years
NasopharyngitisInfections and infestations
ArthralgiaMusculoskeletal and connective tissue disorders
CoughRespiratory, thoracic and mediastinal disorders
Upper respiratory tract infectionInfections and infestations
HeadacheNervous system disorders
PyrexiaGeneral disorders
Back painMusculoskeletal and connective tissue disorders
DiarrhoeaGastrointestinal disorders
VomitingGastrointestinal disorders
RhinorrhoeaRespiratory, thoracic and mediastinal disorders
InfluenzaInfections and infestations
PharyngitisInfections and infestations
Ear infectionInfections and infestations
Pharyngitis streptococcalInfections and infestations
RhinitisInfections and infestations
Ligament sprainInjury, poisoning and procedural complications
GastroenteritisInfections and infestations
Limb injuryInjury, poisoning and procedural complications
Iron deficiency anaemiaBlood and lymphatic system disorders
Enterovirus infectionInfections and infestations
Otitis media acuteInfections and infestations
Skull fractureInjury, poisoning and procedural complications
Febrile convulsionNervous system disorders
Pharyngeal ulcerationRespiratory, thoracic and mediastinal disorders

Most-reported serious reactions: Haemarthrosis, Haematoma, Pancreatitis, Pyrexia, Pneumonia, Urinary tract infection, Anaemia, Splenic haematoma.

Data from ClinicalTrials.gov NCT01945593 adverse events section.

Sponsor's own description

To continue the evaluation of the safety and efficacy of BAX 855 for prophylaxis and treatment of bleeding episodes in adult and pediatric previously treated patients (PTPs) aged ≤ 75 years of age with severe hemophilia A.

Publications & conference data

5 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Rurioctocog alfa pegol PK-guided prophylaxis in hemophilia A: results from the phase 3 PROPEL study.
    Klamroth R, Windyga J, Radulescu V, Collins PW, et al · · 2021 · cited 61× · PMID 33150384 · DOI 10.1182/blood.2020005673
  2. Long-term safety and efficacy results from the phase 3b, open-label, multicentre Continuation study of rurioctocog alfa pegol for prophylaxis in previously treated patients with severe haemophilia A.
    Chowdary P, Mullins ES, Konkle BA, McGuinn C, et al · · 2020 · cited 23× · PMID 32597029 · DOI 10.1111/hae.14052
  3. Efficacy, safety, and immunogenicity of rurioctocog alfa pegol for prophylactic treatment in previously treated patients with severe hemophilia A: a systematic review and meta-analysis of clinical trials.
    Witarto BS, Visuddho V, Witarto AP, Sutanto H, et al · · 2021 · cited 5× · PMID 35136579 · DOI 10.12688/f1000research.73884.3
  4. Abstracts
    · 2020
  5. Abstracts
    · 2019

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Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT01945593.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing