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Not yet recruitingNCT06015243Updated Aug 29, 2023

The Study of Long-term Outcomes of GR1802 in Patients With Chronic Rhinosinusitis With Nasal Polyps

A Phase 2 interventional study of GR1802 injection in Chronic Rhinosinusitis With Nasal Polyps, sponsored by Genrix (Shanghai) Biopharmaceutical Co., Ltd.. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-08-29.

Sponsored by Genrix (Shanghai) Biopharmaceutical Co., Ltd. (part of Chongqing Genrix Biopharmaceutical Co., Ltd) · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
70
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This is an open-label, single-arm, multicenter, extension study to evaluate the long-term safety and efficacy of GR1802 injection in patients with Chronic Rhinosinusitis With Nasal Polyps

Read the detailed description

This trial was designed as an open, extension trial with the primary objective of evaluating the safety of long-term administration of GR1802 injection in patients with chronic rhinosinusitis with nasal polyps, and to a lesser extent, also evaluating the efficacy, immunogenicity, etc.

02

Conditions studied

  • Chronic Rhinosinusitis With Nasal Polyps
03

In context

Nasal Polyps

236 studies on the registry are indexed under Nasal Polyps; 68 are open to participants now.

This study's planned enrollment of 70 is above the median of 60 across 181 interventional studies indexed under Nasal Polyps.

Browse Nasal Polyps studies →

Lead sponsor

Genrix (Shanghai) Biopharmaceutical Co., Ltd. is the lead sponsor of 28 studies on the registry; 17 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Participation in a clinical study of GR1802 injection for the treatment of chronic rhinosinusitis with nasal polyps (Protocol No. GR1802-005) and fulfillment of the following: completion of prescribed treatment as required by the protocol and completion of the W16 visit.
  2. the investigator judges that the subject may benefit from continued use of the test drug.
  3. Able to understand and comply with the requirements of the clinical protocol, voluntarily participate in the clinical trial, and sign the form

Exclusion criteria

Exclusion Criteria:

  1. Poor compliance in the GR1802-005 trial and in the judgment of the investigator is unable to complete this continuation trial;
  2. Use of any protocol-specified prohibited medication/treatment during the GR1802-005 trial and prior to the first dose of this study that, in the judgment of the investigator, makes continued participation in the continuation trial unsuitable.
  3. The time to first dosing in the extension trial program was greater than 4 weeks from the GR1802-005 study W16 visit;
  4. Nasal polyp scoring is not available for nasal polyp scores for nasal or sinus surgery (e.g., nasal polypectomy, balloon dilatation, or intranasal stent placement) that was performed prior to the first administration of the drug in the extension trial that alters the structure of the nasal sidewall;
  5. Individuals who have received live/attenuated vaccination within 8 weeks prior to the first dose of the extension trial or who plan to receive live/attenuated vaccination during the trial;
  6. Any serious progressive or poorly controlled concomitant disease (e.g., asthma exacerbation requiring adjustment of background medication) identified during the GR1802-005 study period for which, in the judgment of the Principal Investigator, the subject is considered unsuitable for participation in the trial;
  7. Other.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
70 participants (estimated)

Study arms

  • Experimental
    Experimental: GR1802

    GR1802 injection 300mg every two weeks for 16-week treatment

    Drug: GR1802 injection

Interventions

  • 150mg/1ml. 2 ml every two weeks Route of administration: Subcutaneous

06

What researchers measure

Primary outcomes

  1. Adverse events

    to characterise the safety and tolerability of GR1802 injection, including abnormal vital signs, laboratory tests, electrocardiogram.

    Time frame: Baseline up to Week 24

Secondary outcomes

  1. Change From Baseline at each evaluation time point in Nasal Polyp Score

    NPS score ranges from 0-8. (sum of 0-4 for each nasal passage scores), higher score means a worse outcome.

    Time frame: Baseline up to Week 24

  2. Change From Baseline at each evaluation time in Nasal Congestion/Obstruction Symptom(NCS) Severity Score

    Change from baseline in the NCS score. NCS score (0-3), higher score means worse nasal symptom.

    Time frame: Baseline up to Week 24

  3. Total Nasal Symptom Score(TNSS) score

    Change from baseline in TNSS score. TNSS score (0-9). Higher score means worse nasal symptom.

    Time frame: Baseline up to Week 24

  4. University of Pennsylvania Smell Identification Test (UPSIT)

    Change from baseline in UPSIT. UPSIT score (0-40). Higher score means better sense of smell.

    Time frame: Baseline up to Week 24

  5. Visual Analogue Scale (VAS) for Rhinosinusitis

    Change from baseline in VAS score. VAS score (0-10). Higher score means worse nasal symptom.

    Time frame: Baseline up to Week 24

  6. Proportion of subjects receiving rescue therapy for nasal polyps

    Rescue therapy includes Systemic Corticosteroids and endoscopic surgery

    Time frame: Baseline up to Week 24

  7. Ctrough

    PK parameter: trough concentration of GR1802 injection. and exposure(CL/F, Vz/F etc.)

    Time frame: Baseline up to Week 24

  8. Vz/F

    PK parameter: The volume of distribution based on the terminal elimination phase adjusted by bioavailability.

    Time frame: Baseline up to Week 24

  9. CL/F

    PK parameter: The apparent volume of the central compartment cleared of drug per unit time adjusted by bioavailability.

    Time frame: Baseline up to Week 24

  10. Anti-drug antibodies(ADA)

    Incidence of ADA

    Time frame: Baseline up to Week 24

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 29, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06015243
Responsible party
Sponsor
First posted
Aug 29, 2023
Start date
Aug 18, 2023 (estimated)
Primary completion
Dec 30, 2024 (estimated)
Completion
Mar 30, 2025 (estimated)
Last update
Aug 29, 2023

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

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