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Intralymphatic Immunotherapy Enhanced by Vitamin-D, a Randomized Placebo-controlled Trial and Comparison With SLIT

Intralymphatic Immunotherapy Enhanced by Vitamin-D, a Randomized Placebo-controlled Trial and Comparison With SLIT

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06061848
Acronym
ILIT vs SLIT
Enrollment
360
Registered
2023-09-29
Start date
2023-02-01
Completion date
2031-12-28
Last updated
2024-10-21

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

Conditions

Allergic Rhinitis Due to Grass Pollen

Brief summary

A national, multicenter, randmised double blind study with parallell arms. 360 patients with grass induced allergic rhinitis will be open randomised 1:2 to 3 years Grazax sublingual immunotherapy or 3 intralymphatic injections with ALK Alutard Timothy. In a second step, the ILIT group will be double blind randomised 1:1 to an intramuscular injection of Vitamin D Vicotrat or placebo, 4 week before the start of the intralymphatic treatment. The primary outcome measure is daily combined symptoms and medication scores during grass pollen season.

Interventions

DRUGSLIT Grazax ALK Nordic 75 000 SQ-T

Daily sublingual grass allergen tablets

DRUGILIT + Vitamin D

1 mL of Vicotrat D3, Heyl Pharma, 100 000 IU/mL, as intramuscular injection. Followed by 0,1 mL of Alutard SQ timothy, ALK Nordic, 10 000 SQ-U/mL as three intralymphatic injections

DRUGILIT + placebo

1 ml of Sodium chloride solution 9 mg/mL as intramuscular injection followed by 0,1 mL of Alutard SQ timothy, ALK Nordic, 10 000 SQ-U/mL as three intralymphatic injections

Sponsors

Lars Olaf Cardell
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* moderate to severe allergic rhinitis due to grass pollen, with Rhinitis Total Symptom Score \>/= 8. * informed consent

Exclusion criteria

* chronic rhinosinusitis with or without nose polyps * Previous immunotherapy (SLIT or SCIT) * BMI \> 35 * house dust mite allergy with symptoms * allergy towards furry animals if exposition cannot be avoided * 25(OH)Vitamin D levels \< 25 or \> 75 nmol/L * use of Vitamin D supplementation or excessive use of sun tanning booths * mental incapacity to follow study protocol * other significant disease * allergy towards study medication * uncontrolled asthma * severe atopic dermatitis * pregnancy or nursing * autoimmune disease * hyper IgE-syndrome * cardiovascular disease * lung disease * liver or kidney disease * hematologic disorder * metabolic disease * chronic infectious disese * medications interacting with the immune system * cancer * previous cytostatic therapy * medication with beta-blockers or ACE-inhibiters, if medication cannot be paused at the day for treatment * drug or alcohol abuse * intake of other study product within 1 month or 6 half times, which ever is longest, before visit 1 * withdrawn consent

Design outcomes

Primary

MeasureTime frameDescription
CSMS60-75 days at the grass pollen season year 1; 4 months before treatment. 60-75 days year 2; 6 months after start of treatment.Daily Combined Symptoms and Medication Scores (0-3)

Secondary

MeasureTime frameDescription
CSMS peak pollen season15 days at the grass pollen season year 1; 4 months before treatment. 15 days year 2; 6 months after start of treatment.Daily Combined Symptoms and Medication Scores (0-3) during the 15 consecutive days with the highest pollen count
RQLQ60-75 days at the grass pollen season year 1; 4 months before treatment. 60-75 days year 2; 6 months after start of treatment.Juniper Rhinoconjunctivitis Quality of Life Questionnaire, weekly scores (0-28)
VAS (0-10)4-6 months before treatment and 6-9 months after treatmentRecalled symptoms severity at visual analogue scale
Serolology with immunoglobulins1 year before treatment, 4-6 weeks after treatment, 1 year after treatmentTotal and grass specific levels of IgE, IgG, IgG4, IgA in serum

Countries

Sweden

Contacts

Primary ContactAgneta Karlsson, Study nurse
agneta.j.karlsson@regionstockholm.se+46 72 580 29 63
Backup ContactLaila Hellkvist, MD, PhD
laila.hellkvist@regionstockholm.se+46 72 469 46 07

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026