Allergic RhinoconjunctivitisPhase 3NCT07060885
A Research Study of House Dust Mite (HDM) SLIT-tablet for the Treatment of HDM Allergy in Chinese Participants Aged 12-65
A Phase 3 study testing HDM SLIT-tablet (12 SQ-HDM) in people with Allergic Rhinoconjunctivitis and Allergic Rhinitis, run by ALK-Abelló A/S at 30 sites in China.
Trial summary
A research study of house dust mite (HDM) SLIT-tablet for the treatment of HDM allergy in Chinese participants aged 12-65. Read more about this study
- Who is it for?
- Ages 12 to 65 years
- Conditions the study is for
- Allergic Rhinoconjunctivitis, Allergic Rhinitis
- What is being tested?
- HDM SLIT-tablet (12 SQ-HDM)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 327 participants
- Where
- 30 sitesChina
- Study dates
- 1 Sep 2025to 10 Sep 2026
- Phase
- Phase 3
- 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 12 to 65 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Male or female Chinese subjects aged 12-65 years
- A clinical history of HDM AR/C (Allergic rhinitis/rhinoconjunctivitis) (with or without asthma) and with allergic rhinitis symptoms despite having received allergy pharmacotherapy during the previous year prior to screening
- Have a certain level of AR (Allergic rhinitis) symptoms on at least 8 of the last 14 days of the baseline period
- Use symptomatic medication for treatment of HDM allergic rhinitis during at least 8 of the last 14 days of the baseline period
- Positive skin prick test (SPT) and IgE (Immunoglobulin E) to D. pteronyssinus or D. farinae at screening
- Lung function ≥ 70% of predicted value
Who cannot join
- Sensitised and regularly exposed to perennial allergens
- Any nasal or pharyngeal condition that could interfere with the safety or efficacy evaluation
- Asthma requiring treatment with high dose of inhaled corticosteroid
- A relevant history of systemic allergic reaction
Trial locations and contacts
30 sites in 1 country.
30 sites in 1 country
China30 sites
Beijing Tongren Hospital, Capital Medical University
Beijing, Beijing Municipality, 100730
Peking Union Medical College Hospital
Beijing, Sichuan, 100730
The Third Hospital of Changsha - Pulmonology
Changshacun, Henan, 410015
Sichuan University - West China Second University Hospital (WCSUH) (West China Women's and Children's Hospital)
Chengdu, Sichuan, 610017
West China Hospital of Sichuan University - Otorhinolaryngology
Chengdu, Sichuan, 610041
The First Affiliated Hospital of Chongqing Medical University - Respiratory
Chongqing, Sichuan, 400016
Fujian Provincial Hospital
Fuzhou, Fujian, 350001
The first hospital affiliated Fujian medical University
Fuzhou, Fujian, 350005
The first affiliated hospital of guangzhou medical university-respiratory department
Guangzhou, Guangdong, 510120
The Third Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong, 510630
The Third Affilliated Hospital of Southern Medical University
Guangzhou, Guangdong, 510630
Hainan General Hospital - Respiratory
Haikou, Hainan, 570311
Zhejiang provincial people's hospital
Hangzhou, Zhejiang, 310014
The First Affiliated Hospital of University of South China - Endocrinology
Hengyang, Henan, 421001
Jingzhou Central Hospital - Otorhinolaryngology
Jingzhou, Hubei, 434020
Nanchang University - The First Affiliated Hospital
Nanchang, Jiangxi, 330046
The Second Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, 330047
Jiangsu Province Hospital/ The First Affiliated Hospital with Nanjing Medical University - Otorhinolaryngology
Nanjing, Jiangsu, 210029
The First Affiliated Hospital of Guangxi Medical University
Nanning, Guangxi, 530021
The People's Hospital of Guangxi Zhuang Autonomous Region - Nephrology - Oncology
Nanning, Guangxi, 530021
Shanghai Jiaotong University School of Medicine, Ruijin Hospital
Shanghai, Shanghai Municipality, 200025
Zhongshan Hospital
Shanghai, Shanghai Municipality, 200032
Shenzhen Children's Hospital - Respiratory
Shenzhen, Guangdong, 518026
Huazhong University of science and Technology Union Shenzhen Hospital(Nanshan Hospital) - Endocrinology
Shenzhen, Guangdong, 518052
The First Affiliated Hospital of Soochow University - Respiratory
Suzhou, Jiangsu, 215006
The 2nd School of Medicine, WMU/The 2nd Affiliated Hospital and Yuying Children's Hospital of WMU - Pediatrics
Wenzhou, Zhejiang, 325027
Union Hospital Tongji Medical College Huazhong University of Science and Technology - Oncology
Wuhan, Hubei, 430022
Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science & Technology
Wuhan, Hubei, 430030
The Second Affiliated Hospital of Xi an Jiaotong University (Xibei Hospital) - Nephrology
Xi'an, Shaanxi, 710004
The Fifth Affiliated Hospital of Sun Yat-Sen University - University Hospital
Zhuhai, Guangdong, 510275
About this study
Official title: A Randomised Double-blind Placebo-controlled Phase III Field Trial Evaluating the Efficacy and Safety of the House Dust Mite (HDM) SLIT-tablet in Chinese Participants Aged 12-65 Years With HDM Allergic Rhinitis/Rhinoconjunctivitis With or Without Asthma
A research study of house dust mite (HDM) SLIT-tablet for the treatment of HDM allergy in Chinese participants aged 12-65.
Read the detailed description
The trial aims to evaluate efficacy of the house dust mite (HDM) SLIT-tablet compared to placebo in Chinese participants aged 12-65 with HDM allergic rhinitis/rhinoconjunctivitis with or without asthma. Efficacy will be assessed based on the total combined rhinitis score during the last 4 weeks of treatment.
The trial is a randomised, double-blind, parallel-group, placebo-controlled, multi-site, phase III trial conducted in China. The treatment period will be 24-28 weeks.
- Conditions
- Allergic Rhinoconjunctivitis, Allergic Rhinitis
- Being tested
- HDM SLIT-tablet (12 SQ-HDM), Placebo
- Medical subject headings
- Rhinitis, Allergic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
HDM SLIT-tablet (12 SQ-HDM)Biological
For daily administration (1 tablet per day)
Other Names: Acarizax, Odactra
PlaceboOther
For daily administration (1 tablet per day)
| Study group | Role | What they receive |
|---|---|---|
| Active treatment | Experimental | HDM SLIT-tablet plus symptom-relieving medication used to alleviate allergic rhinitis/rhinoconjunctivitis symptoms. Receives: Biological: HDM SLIT-tablet (12 SQ-HDM) |
| Placebo | Placebo comparator | Placebo sublingual tablet plus symptom-relieving medication used to alleviate allergic rhinitis/rhinoconjunctivitis symptoms. Receives: Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Average daily total combined rhinitis score (TCRS) during the primary efficacy assessment period.
The average daily TCRS evaluates the treatment effect as the difference in daily rhinitis symptoms and medication score (on a scale from 0-24) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more severe symptoms and/or more use of rhinitis medication. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
Measured: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Secondary outcomes (5)
Average daily values for rhinitis daily symptom score (DSS) during primary efficacy period.
The average rhinitis DSS evaluates the treatment effect as the difference in daily rhinitis symptoms score (on a scale from 0-12) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more severe symptoms. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
Measured: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average daily values for rhinitis daily medication score (DMS) during primary efficacy period.
Average rhinitis DMS evaluates the treatment effect as the difference in daily rhinitis medication use (on a scale of 0-12) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more medication use. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
Measured: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average daily total combined score (TCS) during primary efficacy period.
Average rhinoconjunctivitis TCS evaluates the treatment effect as the difference in daily rhinoconjunctivitis symptoms and medication use (on a scale of 0-38) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more severe symptoms and/or more medication use. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
Measured: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average rhinoconjunctivitis DSS during the primary efficacy assessment period
The average rhinoconjunctivitis DSS evaluates the treatment effect as the difference in daily rhinoconjunctivitis symptom score (on a scale of 0-18) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more severe symptoms. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
Measured: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average rhinoconjunctivitis DMS during the primary efficacy assessment period
The average rhinoconjunctivitis DMS evaluates the treatment effect as the difference in daily rhinoconjunctivitis medication use (on a scale of 0-20) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more medication use. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
Measured: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jul 2025
- Study start1 Sep 2025
- Primary completion31 Aug 2026
- Study completion10 Sep 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Allergic RhinoconjunctivitisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 327 participants (actual)
Sponsor and investigators
- Lead sponsor
- ALK-Abelló A/S
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Changchun GeneScience Pharmaceutical Co., Ltd.
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07060885
- Sponsor's protocol ID
- MT-21
- Other IDs
- 2025-000321-14, 2025
- Status last verified
- Sep 2026
- First submitted
- 1 Jul 2025
- Last updated
- 5 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 5 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomised Double-blind Placebo-controlled Phase III Field Trial Evaluating the Efficacy and Safety of the House Dust Mite (HDM) SLIT-tablet in Chinese Participants Aged 12-65 Years With HDM Allergic Rhinitis/Rhinoconjunctivitis With or Without Asthma
- ClinicalTrials.gov ID
- NCT07060885
- Acronym / sponsor ID
- MT-21
- Conditions
- Allergic Rhinoconjunctivitis, Allergic Rhinitis
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 327 participants (actual)
- Lead sponsor
- ALK-Abelló A/SIndustry (pharma, biotech, devices)
- Collaborators
- Changchun GeneScience Pharmaceutical Co., Ltd.
- Study start
- 1 Sep 2025 (actual)
- Primary completion
- 31 Aug 2026 (actual)
- Study completion
- 10 Sep 2026 (actual)
- First posted
- 11 Jul 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A research study of house dust mite (HDM) SLIT-tablet for the treatment of HDM allergy in Chinese participants aged 12-65.
Detailed description
The trial aims to evaluate efficacy of the house dust mite (HDM) SLIT-tablet compared to placebo in Chinese participants aged 12-65 with HDM allergic rhinitis/rhinoconjunctivitis with or without asthma. Efficacy will be assessed based on the total combined rhinitis score during the last 4 weeks of treatment.
The trial is a randomised, double-blind, parallel-group, placebo-controlled, multi-site, phase III trial conducted in China. The treatment period will be 24-28 weeks.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Active treatment | Experimental | Biological: HDM SLIT-tablet (12 SQ-HDM)HDM SLIT-tablet plus symptom-relieving medication used to alleviate allergic rhinitis/rhinoconjunctivitis symptoms. |
| Placebo | Placebo comparator | Other: PlaceboPlacebo sublingual tablet plus symptom-relieving medication used to alleviate allergic rhinitis/rhinoconjunctivitis symptoms. |
Who may qualify
- Ages
- 12 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (6 listed)
- Male or female Chinese subjects aged 12-65 years
- A clinical history of HDM AR/C (Allergic rhinitis/rhinoconjunctivitis) (with or without asthma) and with allergic rhinitis symptoms despite having received allergy pharmacotherapy during the previous year prior to screening
- Have a certain level of AR (Allergic rhinitis) symptoms on at least 8 of the last 14 days of the baseline period
- Use symptomatic medication for treatment of HDM allergic rhinitis during at least 8 of the last 14 days of the baseline period
- Positive skin prick test (SPT) and IgE (Immunoglobulin E) to D. pteronyssinus or D. farinae at screening
Key exclusion criteria (4 listed)
- Sensitised and regularly exposed to perennial allergens
- Any nasal or pharyngeal condition that could interfere with the safety or efficacy evaluation
- Asthma requiring treatment with high dose of inhaled corticosteroid
- A relevant history of systemic allergic reaction
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| HDM SLIT-tablet (12 SQ-HDM)For daily administration (1 tablet per day) Other Names: Acarizax, Odactra | Biological | Active treatment |
| PlaceboFor daily administration (1 tablet per day) | Other | Placebo |
Primary outcome
Average daily total combined rhinitis score (TCRS) during the primary efficacy assessment period.
Time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
The average daily TCRS evaluates the treatment effect as the difference in daily rhinitis symptoms and medication score (on a scale from 0-24) between participants treated with 12 SQ-HDM and placebo. Higher scores indicate more severe symptoms and/or more use of rhinitis medication. The endpoint is calculated as the average score of all reported daily values during the 4-week primary efficacy assessment period.
5 secondary outcomes
Average daily values for rhinitis daily symptom score (DSS) during primary efficacy period.
Time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average daily values for rhinitis daily medication score (DMS) during primary efficacy period.
Time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average daily total combined score (TCS) during primary efficacy period.
Time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average rhinoconjunctivitis DSS during the primary efficacy assessment period
Time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Average rhinoconjunctivitis DMS during the primary efficacy assessment period
Time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Oct 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
30 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing HDM SLIT-tablet (12 SQ-HDM) in people with Allergic Rhinoconjunctivitis and Allergic Rhinitis, run by ALK-Abelló A/S at 30 sites in China.
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 4 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 5 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 30 sites in China. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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?
Average daily total combined rhinitis score (TCRS) during the primary efficacy assessment period. (time frame: 4 weeks (primary efficacy assessment period), starting 20-24 weeks after initiation of IMP.). 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 5 Oct 2026; AzTrials last refreshed its copy on 7 Nov 2026.