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Birch Pollen AllergyPhase 1BM41NCT04912076

S.C. Immunotherapy With BM41 in Patients With Allergic Rhino-conjunctivitis Caused by Birch Pollen

A Phase 1 study testing BM41 and ALK Alutard SQ Betula verrucosa in people with Birch Pollen Allergy and Allergic Rhinoconjunctivitis, run by Odense University Hospital at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this clinical phase I single centre, randomized, double-blind, placebo-controlled study with open comparator is to investigate tolerability and safety as well as the immunological effects of BM41 in comparison to placebo (double blind) and to a standard subcutaneous immunotherapy Alutard SQ (open) in birch… Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
BM41 and ALK Alutard SQ Betula verrucosa
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
47 participants
Where
1 siteDenmark
Study dates
17 Sep 2018to 22 Mar 2019
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Signed informed consent
  • Age ≥18 ≤ 65 years
  • Moderate to severe birch-pollen-induced allergic rhinitis/rhinoconjunctivitis of at least 2 years according to the Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines (Appendix 1, see the manual of procedures) with or without concomitant mild to moderate persistent asthma
  • Forced expiratory volume (FEV1) >70% for patients with a history of asthma, FEV1>70% or peak flow (PEF) >80% for patients without a history of asthma
  • A positive skin prick test (SPT) (mean wheal diameter ≥ 3mm compared to negative control and negative control should be negative) for birch pollen assessed within 1 year before randomization
  • Specific IgE against birch pollen extract ≥ 0.7 kU/L and against Bet v 1 ≥ 0.35 kU/L as determined by ImmunoCAP

Who cannot join

  • Chronic asthma with an FEV1<70 % of predicted value.
  • History of allergen immunotherapy (AIT) (subcutaneous (SCIT) or sublingual (SLIT)) with birch pollen or tree pollen mix including birch pollen within the past 5 years
  • Ongoing AIT (SCIT or SLIT) with any allergen(s) during the study period
  • Vaccination within one week before or during the treatment phase.
  • Immunosuppressive or biological medication (e.g. IL-5, anti-IgE therapy) within the last six months prior to inclusion and up to end of trial (EoT).
  • Severe immune disorders (including auto-immune diseases) and/or diseases requiring immunosuppressive drugs.
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  • Uncontrolled asthma or other active respiratory diseases.
  • Active malignancies or any malignant disease during the previous 5 years.
  • Severe uncontrolled diseases that could increase the risk for patients participating in the study, including but not limited to: cardiovascular insufficiency, any severe or unstable lung diseases, endocrine diseases, clinically significant renal or hepatic diseases, or haematological disorders.
  • Renal insufficiency
  • Active inflammation or infection of the target organs (nose, eyes or lower airways) at the start of the study.
  • Diseases with a contraindication for the use of adrenaline (e.g. hyperthyroidism, glaucoma).
  • Use of systemic steroids within 4 weeks before start of the study and during the study.
  • Treatment with systemic and local β-blockers.
  • Known allergy towards constituents of the vaccine
  • Pregnancy, lactation or inadequate contraceptive measures for women of child-bearing age (adequate contraceptive measures will be intrauterine device or hormonal contraception (birth control pill, implant, transdermal patch, vaginal ring or depot injection). It is also accepted, if the female patient is permanently sterile or infertile, if her sole partner is permanently sterile, or if they use both condom and diaphragm, The definition of sterile or infertile is surgically sterilized (vasectomy/bilateral salpingectomy, hysterectomy and/or bilateral ovariectomy) or post menopause defined as a non-menstrual period of at least 12 months before inclusion in the study.
  • Alcohol, drug or medication abuse within the past year.
  • Any clinically significant abnormal laboratory parameter at screening.
  • Lack of cooperation or compliance.
  • Any physical or mental condition that precludes administration of SCIT, compliance or participation in a clinical trial.
  • Patients who are students or employees of the institution or 1st grade relatives or partners of the investigators
  • Participation in a clinical trial within 3 months prior to the current trial.

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Odense Research Center for Anaphylaxis, Odense University Hospital

    Odense, 5000

Other trials in Denmark

About this study

Official title: A Randomized, DBPC Study to Determine the Safety, Tolerability and Immunological Effects of BM41 Compared to Placebo and to Treatment With Standard s.c. Immunotherapy in Patients Allergic to Birch Pollen

The aim of this clinical phase I single centre, randomized, double-blind, placebo-controlled study with open comparator is to investigate tolerability and safety as well as the immunological effects of BM41 in comparison to placebo (double blind) and to a standard subcutaneous immunotherapy Alutard SQ (open) in birch allergic patients.

Read the detailed description

Please see original article.

Being tested
BM41, Placebo, ALK Alutard SQ Betula verrucosa

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BM41Drug

    Subcutaneous injection of increasing doses of BM41

  • PlaceboOther

    Subcutaneous injections of placebo containing aluminium hydroxide.

  • ALK Alutard SQ Betula verrucosaDrug

    Subcutaneous injections with increasing doses of Alutard according to cluster up-dosing scheme.

Study groups in NCT04912076
Study groupRoleWhat they receive
BM41Experimental9 treatment visits where subcutaneous injections with solution of the test drug BM41 (adsorbed to aluminium hydroxide) in a blinded fashion starting with 12.5 nanogram increasing to 20 microgram which is maintenance dose. Subsequently 3 maintenance doses will be given. Please look at the results in the original article.
Receives: Drug: BM41
PlaceboPlacebo comparatorPlacebo consisting of only aluminium hydroxide will be administered blinded in amounts according to BM41.
Receives: Other: Placebo
AlutardActive comparatorAlutard SQ (ALK) will serve as the comparator and administration is open. Up-dosing is performed according to the official cluster scheme, reaching maintenance of 100.000 SQ-E
Receives: Drug: ALK Alutard SQ Betula verrucosa

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of adverse events with emphasis on allergic reactions. Safety/tolerability of subcutaneous treatment with BM41 compared to placebo (double-blind) and to a conventional standardized birch pollen extract in patients with birch pollen allergy

    Safety/tolerability of subcutaneous treatment with BM41 compared to placebo (double-blind) and to a conventional standardized birch pollen extract.

    Number and character of all adverse events will be evaluated.

    Measured: Through study completion, an average of 4 months

Secondary outcomes (4)
  1. Changes in serum immunoglobulin E (IgE), immunoglobulin G (IgG) and immunoglobulin G4 (IgG4) levels.

    Evaluation of immunological responses during subcutaneous allergen immunotherapy (SCIT) with BM41 compared to placebo and to a conventional, standardized and registered birch pollen extract (Alutard SQ).The evaluation will be done by monitoring changes in serum immunoglobulin E (IgE), immunoglobulin G (IgG) and immunoglobulin G4 (IgG4) levels against recombinant Bet v 1 (rBet v 1), BM41 and birch pollen extract. Serum will also be used in a so-called IgE facilitated allergen-binding assay (FAB) and in a rat basophilic leukemia cell (RBL)-based histamine release test, to monitor the functional blocking antibody capacity of induced IgG/IgG4 antibodies.

    Measured: Day 7, 42 and 126

  2. Epigenetic changes induced by BM41 and Alutard compared to placebo

    DNA will be isolated from a blood sample.

    Measured: Day 7, 42 and 126

  3. Changes in wheal sizes upon titrated skin prick test with BM41.

    Evaluation of hypo-allergenicity before first exposure but also during repeated exposure to BM41.

    Measured: Day 7, 42 and 112

  4. Changes in the capacity to block IgE facilitated allergen binding and histamine release.

    It will be evaluated in an IgE facilitated allergen binding (FAB) assay and in a rat basophilic leukemia cell (RBL)-based histamine release test.

    Measured: Day 7, 42 and 126

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jun 2021
  2. Study start17 Sep 2018
  3. Primary completion22 Mar 2019
  4. Study completion22 Mar 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
A randomized, double-blind, placebo-controlled, single centre Phase I study with an open comparator group
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04912076
Sponsor's protocol ID
2018-001486-17
Other IDs
2018
Acronym
BM41
Status last verified
Dec 2023
First submitted
24 May 2021
Last updated
11 Dec 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing BM41 and ALK Alutard SQ Betula verrucosa in people with Birch Pollen Allergy and Allergic Rhinoconjunctivitis, run by Odense University Hospital at 1 site in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of adverse events with emphasis on allergic reactions. Safety/tolerability of subcutaneous treatment with BM41 compared to placebo (double-blind) and to a conventional standardized birch pollen extract in patients with birch pollen allergy (time frame: Through study completion, an average of 4 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Dec 2023.

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