Sign in

NCT04891237RecruitingPhase 3

Efficacy and Safety Evaluation for the Treatment of Allergy Against Grass and Olive Pollen

A Randomized, Double-Blinded, Placebo-Controlled, Prospective, Multicenter CT to Evaluate Efficacy and Safety of Subcutaneous Immunotherapy in Subjects With Rhinitis With/Without Mild to Moderate Asthma Sensitized to Olive and Grass Pollen

Source: ClinicalTrials.gov · Last updated 7 May 2025 · Not updated for over 12 months - ask the site whether it is still open

Brief summary (registry, in English)

Prospective, multicenter, randomized, double-blind, placebo-controlled clinical trial of efficacy and safety with subcutaneous immunotherapy in patients with mild to moderate rhinitis / rhinoconjunctivitis with or without mild to moderate asthma sensitized to grasses and olive

Status (registry)
Recruiting
Phase (registry)
Phase 3
Study type
Interventional
Enrollment
180 (estimated)
First submitted
30 Apr 2021
Start date
14 Jun 2021
Primary completion date
31 Jan 2026
Lead sponsor
Inmunotek S.L.
Diseases
Asthma
NCT number
NCT04891237
EU CT number
2024-514525-34-00
EudraCT number
2019-002811-25

What you commit to

  • Study type: Interventional · Phase 3
  • Planned participants: 180
  • From 14 Jun 2021 to the primary completion date, 31 Jan 2026
  • 24 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Subjects who have received prior immunotherapy in the preceding 5 years to any aeroallergens.
  • Subjects who have previously presented a serious secondary reaction during the performance of diagnostic skin tests using the prick test.
  • Subjects under treatment with ß-blockers.
  • Subjects with a known allergy to other investigational drug components other than the allergen.

Other illness

  • Subjects in which immunotherapy may be subject to an absolute general contraindication according to the criteria of the Immunotherapy Committee of the Spanish Society of Allergy and Clinical Immunology and the European Allergy and Clinical Immunology Immunotherapy Subcommittee.
  • Clinically unstable subjects at the time of enrolment in the trial (acute asthma exacerbation, respiratory infection, feverish process, acute urticaria, etc.).
  • Subjects with active chronic urticaria, severe dermographism, severe atopic dermatitis, sunburns, active psoriasis with lesions in areas where skin tests will be performed, or a history of hereditary angioedema.
  • Subjects who have any pathology in which the administration of adrenaline is contraindicated (hyperthyroidism, HT, heart disease, etc.).
  • Subjects with some other disease not related to moderate rhinoconjunctivitis or asthma, but of potential severity and that may interfere with treatment and follow-up (epilepsy, psychomotor disorder, uncontrolled diabetes, malformations, multiple operations, kidney disease,).
  • Subjects with autoimmune disease (thyroiditis, lupus, etc.), tumor diseases or with a diagnosis of immunodeficiencies.
  • Subject whose condition prevents him / her from offering cooperation and who has severe psychiatric disorders.
  • Subjects with diseases of the lower respiratory tract other than asthma such as emphysema or bronchiectasis.

Other

  • Subjects polysensitized to other aeroallergens with the exception of epithelia with occasional exposure and symptoms
  • Subjects polysensitized to other aeroallergens with the exception non-seasonal pollens with grasses and olive
  • Subjects with severe or uncontrolled persistent asthma, with an FEV1 \<70% with respect to the reference value despite adequate pharmacological treatment at the time of inclusion in the trial. Likewise, subjects with intermittent or persistent rhinitis / rhinoconjunctivitis with severe symptoms in which the suspension of oral or systemic antihistamine treatment is contraindicated.
  • Subjects who are direct relatives of the researchers.
  • Pregnant or lactating women.

Who the study is looking for

  • Subject who has signed the informed consent.
  • Subjects of both sexes aged between 12 and 65 years.
  • Subjects with confirmed clinical history of inhalational allergy (rhinitis and / or moderate-severe intermittent or persistent rhinoconjunctivitis according to the ARIA classification with or without intermittent or persistent controlled mild-moderate asthma according to the GEMA 5.0 classification caused by grass and olive allergy. The diagnosis of asthma will be valid from 12 months prior to signing the informed consent
  • Subjects with a positive prick test (higher papule diameter ≥ 5 mm) to a standardized extract of pollen from grasses (Phleum pratense, Holcus lanatus, Dactylis glomerata, Poa pratensis, Festuca elatior, Lolium perenne), or one of the components of the mixture and an olive extract.
  • Specific IgE (CAP or Immulite) against a mixture of grasses or against one of the components of the mixture of grasses, preferably Phleum pratense and olive or one of the molecular components of allergenic sources with a value \> 3,5 KU / L.
  • Women of childbearing age (from menarche) should submit a urine pregnancy test with a negative result at the time of joining the trial.
  • Women of childbearing potential, and men participating in the trial, should commit to using an appropriate method of contraception. Medically acceptable methods of contraception are intrauterine devices placed at least 3 months in advance, surgical sterilization (for example, tubal ligation), barrier methods, or the use of oral contraceptives.
  • Subjects capable of complying with the dosage regimen.
  • Subjects who have a smartphone to record symptoms and medication.
  • Subjects with a negative prick test to coestational pollens. In the case specific IgE is available, the result should be \<3,5 kU/L and without relevant symptomatology
  • Subjects with a negative prick test to other aeroallergens (dust mites, epitheliums and fungus). In the case specific IgE is available, the result should be \<3,5 kU/L and without relevant symptomatology

Age in the registry: 12 years to 65 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (24)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Hospital Nuestra Senora de Sonsoles
Coordinator of this site? Confirm its status
ÁvilaSpainActive, not recruiting
Clínica Dermatología y Alergia (Badajoz)
Coordinator of this site? Confirm its status
BadajozSpainActive, not recruiting
Hospital Quironsalud Clideba
Coordinator of this site? Confirm its status
BadajozSpainActive, not recruiting
Hospital Universitari Dexeus Grupo Quironsalud
Coordinator of this site? Confirm its status
BarcelonaSpainActive, not recruiting
Hospital General Universitario de Ciudad Real
Coordinator of this site? Confirm its status
Ciudad RealSpainActive, not recruiting
Hospital Quironsalud Córdoba
Coordinator of this site? Confirm its status
CórdobaSpainActive, not recruiting
Hospital Universitario Clínico San Cecilio
Coordinator of this site? Confirm its status
GranadaSpainActive, not recruiting
Hospital Universitario de Jaén
Coordinator of this site? Confirm its status
JaénSpainActive, not recruiting
Hospital Universitari de Santa Maria
Coordinator of this site? Confirm its status
LleidaSpainActive, not recruiting
Clínica Subiza
Coordinator of this site? Confirm its status
MadridSpainActive, not recruiting
Hospital Central De La Cruz Roja San Jose Y Santa Adela
Coordinator of this site? Confirm its status
MadridSpainActive, not recruiting
Clínica de asma y alergia Dres. Ojeda
Coordinator of this site? Confirm its status
MadridSpainActive, not recruiting
Hospital Quironsalud Malaga
Coordinator of this site? Confirm its status
MálagaSpainActive, not recruiting
Alergologo Clinica Alergias Malaga Dr.Barceló
Coordinator of this site? Confirm its status
MálagaSpainActive, not recruiting
Clínica privada Dr. Antonio Carbonell Martinez
Coordinator of this site? Confirm its status
MurciaSpainActive, not recruiting
Hospital Universitario Virgen de la Arrixaca
Coordinator of this site? Confirm its status
MurciaSpainActive, not recruiting
Clínica privada Dra. Izaskun Leanizbarrutia
Coordinator of this site? Confirm its status
PalenciaSpainActive, not recruiting
Hospital Universitario Infanta Cristina
Coordinator of this site? Confirm its status
ParlaSpainActive, not recruiting
Hospital Viamed Santa Ángela de la Cruz
Coordinator of this site? Confirm its status
SevillaSpainActive, not recruiting
Hospital Universitario Virgen del Rocío
Coordinator of this site? Confirm its status
SevillaSpainActive, not recruiting
Centro de Especialidades Médicas de Tarancón
Coordinator of this site? Confirm its status
Tarancón (Cuenca)SpainActive, not recruiting
Centro médico Iza
Coordinator of this site? Confirm its status
Tres Cantos (Madrid)SpainActive, not recruiting
Hospital Universitario Infanta Elena
Coordinator of this site? Confirm its status
Valdemoro (Madrid)SpainActive, not recruiting
Hospital De Valladolid Felipe II
Coordinator of this site? Confirm its status
ValladolidSpainActive, not recruiting

This page is information, not medical advice. Discuss any trial with your doctor.