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Study to investigate the efficacy and safety of a subcutaneous immunotherapy with gpASIT+™ in patients with grass pollen-induced allergy in comparison with a placebo

A multicentre, international, randomised, double-blind, placebo controlled study to demonstrate the clinical efficacy and safety of subcutaneous immunotherapy with gpASIT+™ in patients with grass pollen-induced allergic rhinoconjunctivitis

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2017-002911-33-HU
Enrollment
624
Registered
2018-07-05
Start date
2018-08-30
Completion date
Unknown
Last updated
2018-09-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Treatment of seasonal grass pollen-induced rhinoconjunctivitis MedDRA version: 20.0 Level: LLT Classification code 10019170 Term: Hay fever System Organ Class: 100000004870

Interventions

Sponsors

ASIT biotech S.A.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Female or male patients aged 18 to 64 years (inclusive); 2) Signed and dated Informed Consent Form (ICF) by a legally competent patient; 3) Good physical and mental health according to medical history, physical examination and vital signs; 4) Female patients who are: a. Not of childbearing potential, defined as: amenorrhea or post-menopausal (natural spontaneous amenorrhea for at least 12 months, or at least 6 weeks following surgical menopause), OR b. Naturally or surgically sterile (hysterectomy; bilateral salpingectomy or oophorectomy; bilateral tubal ligation with surgery at least 6 weeks prior to study screening), OR c. Non-pregnant, non-lactating with negative blood pregnancy test at the Screening visit and using at least one of the following contraceptive methods: i. Stable hormonal contraceptive for =90 days prior to the study (if =65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1) Diagnosis of mastocytosis; 2) Previous (within the last 5 years) immunotherapy with grass allergens; 3) Ongoing immunotherapy with grass allergens or any other allergens; 4) Patients with any history of anaphylaxis due to any cause; 5) Patients with a history of hypersensitivity to the excipients of the investigational product; 6) Patients with a forced expiratory volume in 1 second (FEV1) <80% of the predicted value (European Community for Steel and Coal [ECSC]) or with a peak expiratory flow (PEF) <70% of the individual optimum value at the Screening visit 7) History of being intubated with mechanical ventilator support or in intensive care unit for asthma at any point in the patient’s life; 8) History of emergency visit or hospital admission for asthma in the previous 12 months; 9) Clinical history of moderate to severe allergic rhinitis, as defined according to the ARIA classification of rhinitis, due to tree pollen near or overlapping the grass pollen season; 10) Clinical history of moderate to severe allergic rhinitis as defined according to the ARIA classification of rhinitis caused by an allergen to which the participant is regularly exposed; 11) Patients with a history of significant renal disease or chronic hepatic disease; 12) Patients with a malignant disease; 13) Patients with history of systemic disease affecting the immune system such as autoimmune diseases, immune complex disease or immunodeficiency, or with any chronic disease which may impair the patient’s ability to participate in the trial (e.g. severe congestive heart failure, active gastric ulcer, inflammatory bowel disease, uncontrolled diabetes mellitus, etc.); 14) Patients requiring concomitant medications such as beta-blocking, angiotensin receptor antagonist or angiotensin-converting enzyme inhibitor treatment; antidepressant drugs with potent antihistamine properties i.e. tricyclic antidepressants (e.g. doxepin, amitriptyline, desipramine, imipramine, etc.); anti-IgE antibodies, mast cell stabilisers, anti-leukotriene agents or anti-interleukin treatment (e.g. anti-interleukin 5); corticosteroids (oral, topical or nasal); or H1 anti-histaminic drugs; 15) Patients with any contraindication for the use of adrenaline; 16) Patients with (repeated) laboratory abnormalities greater than Common Terminology Criteria for Adverse Events Grade 2 or higher at screening; 17) Patients with known positive serology for Human Immunodeficiency Virus-1/2, Hepatitis B Virus or Hepatitis C Virus; 18) Patients having received a vaccine, corticoids or immunosuppressive medications with significant systemic effect within 1 month before trial entry; 19) Patients being in any relationship with or being dependent on the Sponsor, Contract Research Organisation (CRO) and/or Investigator; 20) Inability to understand instructions, attend planned visits and/or complete study documents or assessments, including unreliable patients such as those with known alcoholism or drug abuse or with a history of a severe psychiatric disorder, as well as patients unwilling to give informed consent or to abide by the requirements of the protocol; 21) Simultaneous participation in other clinical trials or previous participation within 30 days before inclusion; 22) Patients who have been committed to an institution by virtue of an order issued by either the judicial or the administrative authorities.

Design outcomes

Primary

MeasureTime frame
Secondary Objective: • To confirm the clinical efficacy of gpASIT+™ as assessed with the CSMS during the entire 2019 grass pollen season; • To confirm the clinical efficacy of gpASIT+™ as assessed with the Rhinoconjunctivitis Total Symptom Score (RTSS) and subscores, the Rescue Medication Score (RMS) and the rate of “well days”, during the 2019 grass pollen season (both peak and entire season); • To confirm the safety and clinical tolerability of gpASIT+™ treatment; • To confirm the induction of key immunological effects in serum after treatment with gpASIT+™; • To assess patients’ quality of life and the health economics impact of treatment with gpASIT+™ during the pollen season.;Primary end point(s): The primary efficacy endpoint will be the average daily CSMS collected during the peak of the grass pollen season. The daily CSMS is the sum of the daily symptom score and the daily RMS calculated from the data recorded in the eDiary.;Timepoint(s) of evaluation of this end point: Over the peak of the grass pollen season.;Main Objective: To demonstrate the clinical efficacy of grass pollen-ASIT+™ (gpASIT+™) following subcutaneous administration to patients suffering from grass pollen-induced allergic rhinoconjunctivitis, as assessed with the combined symptom and medication score (CSMS) during the peak of the 2019 grass pollen season.

Secondary

MeasureTime frame
Secondary end point(s): Secondary efficacy endpoints are: • CSMS over the entire grass pollen season; • RTSS (i.e. the sum of ESS and NSS) over the peak period and the entire grass pollen season; RMS over the peak period and the entire grass pollen season; • Symptom subscores (ESS and NSS) over the peak period and the entire grass pollen season; • TSS (the sum of the ESS, NSS and lung symptom score) over the peak period and the entire grass pollen season (in asthmatic patients only); • Use of rescue medication to relieve asthma symptoms over the peak period and the pollen season; • Number (%) of “well days” over the peak period and the entire grass pollen season; • RQLQ(S); • PGE assessment.;Timepoint(s) of evaluation of this end point: Over the peak period and the entire pollen season

Countries

Hungary

Contacts

Public ContactClinical Operations

ASIT biotech S.A.

info@biotech.be+322264 0390

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026