NCT01918956

Brief Summary

This study investigates the safety of two up-dosing regimen. The safety of PURETHAL Birch will be evaluated in a rush regimen (maximum dose reached in 3 injections during 3 weeks) compared to the conventional regimen (maximum dose reached in 6 injections during 6 weeks). The primary endpoint of the sudy is the comparison of the proportions of the patients who have successfully reached the maintenance dose between the two treatment regimes. A similar previous study with PURETHAL Grasses has shown that the rush up-dosing scheme is as safe as the conventional up-dosing regime. Therefore it is expected that up-dosing with PURETHAL Birch according to the rush regimen is as safe as using the conventional regimen.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Sep 2013

Shorter than P25 for phase_4

Geographic Reach
1 country

8 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 7, 2013

Completed
1 day until next milestone

First Posted

Study publicly available on registry

August 8, 2013

Completed
24 days until next milestone

Study Start

First participant enrolled

September 1, 2013

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2014

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2014

Completed
Last Updated

April 11, 2014

Status Verified

April 1, 2014

Enrollment Period

5 months

First QC Date

August 7, 2013

Last Update Submit

April 10, 2014

Conditions

Keywords

immunotherapybirch pollenseasonal allergyup-dosing

Outcome Measures

Primary Outcomes (1)

  • Proportion of patients successfully reaching the maintenance dose

    12 weeks

Secondary Outcomes (2)

  • Early and late local and systemic reactions

    30 minutes after IMP injection and 24 hours after injection

  • Immunological parameters (IgE, IgG)

    10 weeks rush regime, 13 weeks conventional regime

Study Arms (2)

conventional regimen of PURETHAL Birch

ACTIVE COMPARATOR

Initial treatment: 6 incremental weekly subcutaneous doses of 0.05, 0.1, 0.2, 0.3, 0.4 and 0.5 ml PURETHAL Birch, 20.000 AUM/ml (week 1, 2, 3, 4, 5, 6). Maintenance treatment: 0.5 ml PURETHAL Birch, 20.000 AUM/ml, in intervals according to registered scheme (week 8, 10, 12).

Biological: PURETHAL Birch, 20.000 AUM/ml

rush regimen of PURETHAL Birch

EXPERIMENTAL

Initial treatment: 3 incremental weekly subcutaneous doses of 0.1, 0.3, and 0.5 ml PURETHAL Birch, 20.000 AUM/ml (week 1, 2, 3) Maintenance treatment: 0.5 ml PURETHAL Birch, 20.000 AUM/ml, in 2-weekly intervals (week 5, 7, 9).

Biological: PURETHAL Birch, 20.000 AUM/ml

Interventions

comparison of different up-dosing regimes

conventional regimen of PURETHAL Birchrush regimen of PURETHAL Birch

Eligibility Criteria

Age12 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Signed informed consent.
  • Age ≥12 years.
  • Allergic rhinitis/rhinoconjunctivitis related to birch pollen with or without concomitant mild to moderate persistent asthma
  • FEV1\>70% for patients with a history of mild to moderate asthma, FEV1\>70% or PEF\>80% for patients without a history of asthma
  • A positive SPT (mean wheal diameter ≥ 3mm compared to negative control and negative control should be negative) for birch pollen.
  • Positive serum specific anti-birch IgE-test (\>0.7 U/ml) within 1 year before randomization and/or a positive provocation test for birch pollen within 1 year before randomization.

You may not qualify if:

  • Immunotherapy (SCIT or SLIT) with birch pollen allergens within the past 5 years
  • Any specific immunotherapy (SCIT or SLIT) during the study period
  • Severe immune disorders (including auto-immune diseases) and/or diseases requiring immunosuppressive drugs
  • Active malignancies or any malignant disease within the past 5 years
  • Severe uncontrolled diseases that could increase the risk for patients participating in the study
  • Acute/active inflammation or infection of the target organs at the start of the study
  • Secondary changes of the target organ
  • Diseases with a contraindication for the use of adrenaline
  • Use of systemic steroids within 4 weeks before start of the study and during the study
  • Treatment with systemic and local β-blockers
  • Vaccination within one week before start of therapy or during the initiation phase
  • Participation in a clinical study with a new investigational drug within the last 3 months or for a biological within the last 6 months prior to or during the study
  • Pregnancy, lactation or inadequate contraceptive measures for women of child-bearing age
  • Alcohol, drug or medication abuse within the past year
  • Any clinically significant abnormal laboratory parameter at screening
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

NZOZ PROMEDICA Radlmacher i Wspólnicy Sp. J.

Bialystok, 15-183, Poland

Location

NZOZ Alergia

Bielsko-Biala, 43-300, Poland

Location

NZOZ ClinicaVitae

Gdansk, 80-405, Poland

Location

Medica Pro Familia Sp.zo.o S.K.A

Katowice, 40-954, Poland

Location

ALERGO-MED.Specjalistyczna Przychodnia Lekarska Sp. z o.o.

Tarnów, 33-100, Poland

Location

Specjalistyczne Centrum Medyczne CenterMed

Tarnów, 33-100, Poland

Location

NZOZ CUM PROXIMUM Sp. z o.o.

Wroclaw, 53-428, Poland

Location

NZOZ Centrum Alergologii

Łódz, 90-553, Poland

Location

MeSH Terms

Conditions

Rhinitis, AllergicRhinitis, Allergic, Seasonal

Condition Hierarchy (Ancestors)

RhinitisNose DiseasesRespiratory Tract DiseasesRespiratory HypersensitivityOtorhinolaryngologic DiseasesHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Study Officials

  • Piotr Buczyłko, Prof.

    NZOZ Centrum Alergologii

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 7, 2013

First Posted

August 8, 2013

Study Start

September 1, 2013

Primary Completion

February 1, 2014

Study Completion

April 1, 2014

Last Updated

April 11, 2014

Record last verified: 2014-04

Locations