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AsthmaPhase 2RAINIERNCT06496607

A Study to Evaluate Solriktug in Adult Participants With Asthma

A Phase 2 study testing NSI-8226 in people with Asthma, run by Uniquity One (UNI) at 69 sites in United States.

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

Phase 2 study to evaluate the safety, tolerability, PK, immunogenicity, and pharmacodynamics of solriktug with adult participants with asthma. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Asthma
What is being tested?
NSI-8226
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
145 participants
Where
69 sitesUnited States
Study dates
26 Jul 2024to 26 Oct 2026
Phase
Phase 2
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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participant must be aged 18 to 75 years of age.
  • Documented diagnosis of asthma at least 12 months prior to Screening.
  • Participants must be on maintenance asthma medications, for at least 3 months prior to screening: inhaled corticosteroid (ICS) in combination with long-acting beta agonist (LABA), or as part of an approved triple therapy for asthma (ICS/LABA/long-acting muscarinic antagonist [LAMA]).
  • Participant has an ACQ-6 score ≥1.5 at Screening Visit.
  • Participant has FEV1 of ≥50% to 90%, inclusive, of predicted normal value at Screening Visit 1.
  • Evidence of asthma as documented by reversibility in FEV1 of ≥12% and ≥200 mL over the pre-salbutamol FEV1 at Screening Visit.

Who cannot join

  • Female participant who is pregnant or breastfeeding.
  • Participant is a current smoker, or former smoker with a smoking history of ≥10 pack-years.
  • Participant has a known hypersensitivity to any component of the formulation of solrikitug, including any of the excipients, or a history of anaphylactic reaction to any therapeutic monoclonal antibody.
  • Participant has history or evidence of any clinically significant cardiovascular, hematologic, hepatic, immunologic, metabolic, urologic, neurologic, dermatologic, psychiatric, renal and/or other major disease or malignancy, or any other condition (risks factors of pneumonia) that in the opinion of the Investigator might obfuscate the study data.
  • Participant has an exacerbation of asthma requiring use of OCS or hospitalization in the 6 weeks prior to Screening or during the Screening Period.
  • Participant has history or evidence of any clinically significant pulmonary condition, other than asthma.
  • Lower respiratory tract infection within the 6 weeks prior to Screening.

Trial locations and contacts

69 sites in 1 country.

69 sites in 1 country

United States69 sites
  • Asheville Clinical Research

    Asheville, North Carolina, 28803

  • TTS Research

    Boerne, Texas, 78006

  • NexGen Research

    Boise, Idaho, 83706

  • Treasure Valley Medical Research

    Boise, Idaho, 83706

  • Proactive RGV

    Brownsville, Texas, 78520

  • Ten20 Clinical Research, LLC

    Carrollton, Texas, 75010

  • Javarra Research

    Conroe, Texas, 77384

  • National Clinical Trials

    Cordele, Georgia, 31015

  • JY Research Institute

    Cutler Bay, Florida, 33189

  • Dallas Allergy and Asthma Center

    Dallas, Texas, 75231

  • IntraCare Health Center

    Dallas, Texas, 75254

  • Midwest Clinical Research

    Dayton, Ohio, 45417

  • Deerborn Clinic

    Dearborn, Michigan, 48126

  • Hillcrest Medical Research, LLC

    DeLand, Florida, 32720

  • Henry Ford Health System

    Detroit, Michigan, 48202

  • Clinical Research Associates of Central PA

    DuBois, Pennsylvania, 15801

  • CPCC - Research, LLC

    East Point, Georgia, 30344

  • OK Clinical Research

    Edmond, Oklahoma, 73034

  • Warren W. Pleskow, M.D.

    Encinitas, California, 92024

  • Velocity Clinical Research - Denver

    Englewood, Colorado, 80110

  • Pulmonary Research Institute of SE Michigan

    Farmington Hills, Michigan, 48336

  • US Allergy & Asthma

    Frisco, Texas, 75035

  • IntraCare Clinical

    Greenville, Texas, 75401

  • Velocity Clinical Research - Hampton

    Hampton, Virginia, 23666

  • Henderson Trials

    Henderson, Nevada, 89052

  • Premier Research Center, LLC

    Hendersonville, Tennessee, 37075

  • Axsendo Clinical Research

    Houston, Texas, 77002

  • Gulf Coast Clinical Research

    Houston, Texas, 77070

  • Beach Physicians Clinical Research Corp.

    Huntington Beach, California, 92647

  • New Phase Research & Development

    Knoxville, Tennessee, 37909

  • Biosolutions Clinical Research Center

    La Mesa, California, 91942

  • Velocity Clinical Research

    Lafayette, Louisiana, 70508

  • Allergy & Asthma Diagnostic Treatment Center

    Lancaster, Pennsylvania, 17601

  • Clinical Site Partners LLC dba-Leesburg

    Leesburg, Florida, 34748

  • Orso Health

    Long Beach, California, 90808

  • Downtown LA Research Center

    Los Angeles, California, 90017

  • Care Access - Mauldin

    Mauldin, South Carolina, 29662

  • Velocity Clinical Research

    Medford, Oregon, 97504

  • Pharmax Research of South Florida

    Miami, Florida, 33126

  • Coral Research Clinic Corp.

    Miami, Florida, 33186

  • Pro-Care Research Center, Corp.

    Miami Gardens, Florida, 33014

  • Montana Medical Research, Inc.

    Missoula, Montana, 59808

  • Velocity Clinical Research

    Mobile, Alabama, 36608

  • Allergy, Asthma & Sinus Center, LLC

    Myrtle Beach, South Carolina, 29588

  • Newport Native MD, Inc.

    Newport Beach, California, 92663

  • MBR - Charleston

    North Charleston, South Carolina, 29406

  • Phoenix Medical Group

    Peoria, Arizona, 85381

  • Temple University - Shenoy

    Philadelphia, Pennsylvania, 19140

  • Northwest Research Center

    Portland, Oregon, 97202

  • A1 Clinical

    Queens Village, New York, 11428

  • North Carolina Clinical Research

    Raleigh, North Carolina, 27607

  • Prospective Research Innovations Inc.

    Rancho Cucamonga, California, 91730

  • Clinical Research of Rock Hill

    Rock Hill, South Carolina, 29732

  • Allergy & Asthma Medical Group and Research Center

    San Diego, California, 92123

  • Allergy & Asthma Associates of Santa Clara Valley

    San Jose, California, 95117

  • San Jose Clinical Trials

    San Jose, California, 95128

  • North Bay Clinical Research

    Santa Rosa, California, 95405

  • Aeroallergy Research Laboratories of Savannah, Inc.

    Savannah, Georgia, 31406

  • Velocity Clinical Research - Sioux City

    Sioux City, Iowa, 51106

  • Mayflower Clinical

    South Dartmouth, Massachusetts, 02747

  • Revive Research Institute, Inc.

    Southfield, Michigan, 48075

  • Ogden Clinical Canyon View

    Tallahassee, Florida, 32308

  • Care Access, Tamarac

    Tamarac, Florida, 33321

  • TBC Research

    Tamarac, Florida, 33321

  • Toledo Institute of Clinical Research Inc.

    Toledo, Ohio, 43617

  • Providere Research

    West Covina, California, 91790

  • Chesapeake Clinical Research, Inc.

    White Marsh, Maryland, 21162

  • Accellacare - Duly

    Winfield, Illinois, 60190

  • Southeastern Research Center

    Winston-Salem, North Carolina, 27103

Other trials in United States

About this study

Official title: A Phase 2, Randomized, Double-blind, Placebo-controlled, Multiple Dose-Ranging Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Solrikitug in Adult Participants With Asthma (RAINIER)

Phase 2 study to evaluate the safety, tolerability, PK, immunogenicity, and pharmacodynamics of solriktug with adult participants with asthma.

Read the detailed description

This is a 12-week randomized, double-blind, placebo-controlled Phase 2 clinical study to evaluate the safety, tolerability, PK, immunogenicity, and pharmacodynamics of 3 dose levels of solrikitug versus placebo on top of standard of care in adult participants with asthma.

Approximately 140 adult participants with asthma will be randomized. Participants will receive solrikitug, or placebo, administered via subcutaneous injection at the study site, over a 12-week treatment period. The study also includes a post-treatment follow-up period of 16 weeks.

Conditions
Asthma
Being tested
NSI-8226, Placebo
Medical subject headings
Asthma

What participants receive

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

  • NSI-8226Biological

    Solrikitug

  • NSI-8226Biological

    Solrikitug

  • NSI-8226Biological

    Solrikitug

  • PlaceboBiological

    Placebo

Study groups in NCT06496607
Study groupRoleWhat they receive
Solrikitug low dose subcutaneous injectionExperimentalSolrikitug
Receives: Biological: NSI-8226
Solrikitug mid dose subcutaneous injectionExperimentalSolrikitug
Receives: Biological: NSI-8226
Solrikitug high dose subcutaneous injectionExperimentalSolrikitug
Receives: Biological: NSI-8226
Placebo subcutaneous injectionPlacebo comparatorPlacebo
Receives: Biological: Placebo

What is being measured

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

  1. To assess the effect of multiple doses of solrikitug on blood eosinophil counts compared with placebo

    Change from baseline in blood eosinophil counts evaluated over Weeks 8 to 12

    Measured: Over weeks 8 and 12

Secondary outcomes (1)
  1. To assess the safety and tolerability of multiple doses of solrikitug

    Adverse events (AEs) and serious adverse events (SAEs)

    Measured: To week 12

Timeline

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

  1. First posted11 Jul 2024
  2. Study start26 Jul 2024
  3. Primary completion6 Jul 2026
  4. Study completion26 Oct 2026

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
145 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06496607
Sponsor's protocol ID
NSI-8226-204
Acronym
RAINIER
Status last verified
Oct 2026
First submitted
3 Jul 2024
Last updated
28 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing NSI-8226 in people with Asthma, run by Uniquity One (UNI) at 69 sites in United States.

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 7 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 28 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 69 sites in United States. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

To assess the effect of multiple doses of solrikitug on blood eosinophil counts compared with placebo (time frame: Over weeks 8 and 12). 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 28 Oct 2026.

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