Multiple MyleomaPhase 2NCT06952075
GR1803 Injection in Patients With RRMM
A Phase 2 study testing GR1803 in people with Multiple Myleoma, run by Genrix (Shanghai) Biopharmaceutical Co., Ltd. at 1 site in China.
Trial summary
All subjects will receive GR1803 injection until intolerable toxicity or investigator-assessed disease progression occurs (except in cases of disease progression due to discontinuation of the drug as a result of an adverse event) or until the subject has been administered the drug for 2 years or until the subject… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Multiple Myleoma
- What is being tested?
- GR1803
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteChina
- Study dates
- 24 Apr 2025to 1 Dec 2027
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 1、ECOG score 0-2 2、≥18 years of age 3、Multiple myeloma must be Complicated by Extramedullary Plasmacytoma.
Who cannot join
- 1、Prior treatment with any BCMA-targeted therapy 2、Known active CNS involvement or exhibits clinical signs of meningeal involvement of multiple myeloma 3、Known allergies, hypersensitivity, or intolerance to the study drug (teclistamab) or its excipients 4、Plasma cell leukemia , Waldenström's macroglobulinemia, POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes), or primary amyloid light-chain amyloidosis.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
Institute of Hematology & Blood Diseases Hospital
Tianjin, Tianjin Municipality, 250033
Gang An, +86 13502181109, angang@ihcams.ac.cn
About this study
Official title: Single-Arm, Open, Multi-Center Phase II Clinical Trial of the Efficacy, Safety, Pharmacokinetics, and Immunogenicity of GR1803 Injection in Patients With Relapsed/Refractory Multiple Myeloma Complicated by Extramedullary Plasmacytoma
All subjects will receive GR1803 injection until intolerable toxicity or investigator-assessed disease progression occurs (except in cases of disease progression due to discontinuation of the drug as a result of an adverse event) or until the subject has been administered the drug for 2 years or until the subject withdraws consent or until the investigator determines that the subject needs to be discontinued.
- Conditions
- Multiple Myleoma
- Being tested
- GR1803
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GR1803Drug
D1 given at a dose of 10ug/kg, D4 given at a dose of 30ug/kg, D8 given at a dose of 180ug/kg, followed by weekly dosing up to cycle 9, and cycle 10 and onwards, every 2 weeks, with a dosing cycle of every 4 weeks
| Study group | Role | What they receive |
|---|---|---|
| GR1803 | Experimental | Not described Receives: Drug: GR1803 |
What is being measured
The primary outcome is the main question the study is designed to answer.
ORR
Sum of the proportions of patients with proven strict complete remission (sCR), complete remission (CR), very good partial remission (VGPR) and partial remission (PR)
Measured: 2 years
Secondary outcomes (2)
Progression-free survival (PFS)
Time from enrollment to tumor progression or death from any cause
Measured: 2 years
AE
adverse event
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Apr 2025
- Study start24 Apr 2025
- Primary completion1 Jul 2027 (estimated)
- Study completion1 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Multiple MyleomaStudies 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 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Genrix (Shanghai) Biopharmaceutical Co., Ltd.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06952075
- Sponsor's protocol ID
- GR1803-005
- Status last verified
- Apr 2025
- First submitted
- 23 Apr 2025
- Last updated
- 30 Apr 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Study Protocol
Study at a glance
From the registry record, last updated by the sponsor on 30 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Single-Arm, Open, Multi-Center Phase II Clinical Trial of the Efficacy, Safety, Pharmacokinetics, and Immunogenicity of GR1803 Injection in Patients With Relapsed/Refractory Multiple Myeloma Complicated by Extramedullary Plasmacytoma
- ClinicalTrials.gov ID
- NCT06952075
- Acronym / sponsor ID
- GR1803-005
- Conditions
- Multiple Myleoma
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- Genrix (Shanghai) Biopharmaceutical Co., Ltd.Industry (pharma, biotech, devices)
- Study start
- 24 Apr 2025 (actual)
- Primary completion
- 1 Jul 2027 (estimated)
- Study completion
- 1 Dec 2027 (estimated)
- First posted
- 30 Apr 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.
All subjects will receive GR1803 injection until intolerable toxicity or investigator-assessed disease progression occurs (except in cases of disease progression due to discontinuation of the drug as a result of an adverse event) or until the subject has been administered the drug for 2 years or until the subject withdraws consent or until the investigator determines that the subject needs to be discontinued.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| GR1803 | Experimental | Drug: GR1803 |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- 1、ECOG score 0-2 2、≥18 years of age 3、Multiple myeloma must be Complicated by Extramedullary Plasmacytoma.
Key exclusion criteria (1 listed)
- 1、Prior treatment with any BCMA-targeted therapy 2、Known active CNS involvement or exhibits clinical signs of meningeal involvement of multiple myeloma 3、Known allergies, hypersensitivity, or intolerance to the study drug (teclistamab) or its excipients 4、Plasma cell leukemia , Waldenström's macroglobulinemia, POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes), or primary amyloid light-chain amyloidosis.
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 |
|---|---|---|
| GR1803D1 given at a dose of 10ug/kg, D4 given at a dose of 30ug/kg, D8 given at a dose of 180ug/kg, followed by weekly dosing up to cycle 9, and cycle 10 and onwards, every 2 weeks, with a dosing cycle of every 4 weeks | Drug | GR1803 |
Primary outcome
ORR
Time frame: 2 years
Sum of the proportions of patients with proven strict complete remission (sCR), complete remission (CR), very good partial remission (VGPR) and partial remission (PR)
2 secondary outcomes
Progression-free survival (PFS)
Time frame: 2 years
AE
Time frame: 2 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Apr 2025.
- Individual participant dataSharing planned: No. Study Protocol
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing GR1803 in people with Multiple Myleoma, run by Genrix (Shanghai) Biopharmaceutical Co., Ltd. at 1 site 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 1 inclusion and 1 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: looking for participants now, as of the sponsor's last update on 30 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site 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. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Gang An, PhD (+8613502181109, angang@ihcams.ac.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
ORR (time frame: 2 years). 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 30 Apr 2025.