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SarcomaPhase 1NCT06021626

A Study of CRD3874-SI in People With Solid Tumors

A Phase 1 study testing CRD3874 in people with Sarcoma and Merkel Cell Carcinoma, run by Memorial Sloan Kettering Cancer Center at 7 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This study will test the safety of a study drug called CRD3874-SI. The researchers will test different doses of CRD3874-SI to find the highest dose that causes few or mild side effects in participants. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Sarcoma, Merkel Cell Carcinoma
What is being tested?
CRD3874
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
81 participants
Where
7 sitesUnited States
Study dates
25 Aug 2023to Aug 2029
Phase
Phase 1
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

  • Male or female age ≥ 18 years at the time of informed consent.
  • Be capable, willing, and able to provide written informed consent.
  • Be willing to comply with clinical trial instructions and requirements, including tumor biopsies (if feasible and required per protocol).
  • Patients must have a locally advanced or metastatic cancer, a malignant solid tumor that has progressed on at least one line of systemic therapy or for which no standard treatment is available, the participant is intolerant to available treatment, or the participant declined standard of care systemic therapy.
  • In the dose escalation phase study patients with the following tumor types will be eligible: Of note patients who declined or were intolerable of standard of care systemic therapy will be considered in all dose expansion cohorts.
  • Head and neck squamous cell carcinoma (HNSCC)
Show all 43Show fewer
  • Participants must have histologically or cytologically confirmed recurrent and/or metastatic HNSCC and must have received 1-2 prior lines of systemic anti-cancer therapy including a checkpoint inhibitor (patients treated initially with immune checkpoint blockade alone followed by the addition of other drugs in combination [i.e., cytotoxic chemotherapy or EGFR inhibitor], will be considered 1 line of therapy.
  • HPV positive (p16 IHC positive or HPV RNA ISH positive), PD-L1 CPS score high (≥1)
  • HPV negative (p16 IHC negative or HPV RNA ISH negative), PD-L1 CPS score high (≥1)
  • Adenoid cystic carcinoma (ACC)
  • Participants must have histologically or cytologically confirmed recurrent and/or metastatic ACC (cancers arising from non-salivery gland primary sites are eligible) and may have received none or up 2 prior lines of systemic anti-cancer therapy.
  • Merkel cell carcinoma (MCC)
  • Participants must have histologically or cytologically confirmed recurrent and or metastatic MCC and must have received at least one but no more than 3 prior lines of systemic anti-cancer therapy including a checkpoint inhibitor and may not have received prior chemotherapy for MCC.
  • Monotherapy alone
  • Radiation therapy
  • Patients will receive palliative radiation therapy to a tumor site if they have at least one other site of measureable disease that can be chosen as the target lesion to assess response to investigational therapy.
  • Sarcoma that has demonstrated clinical benefit or an objective response to immune checkpoint blockade or sarcoma subtypes that are considered immunogenic subtypes including but not limited to undifferentiated pleomorphic (UPS) or myxofibrosarcoma (MFS), angiosarcoma, alveolara soft part sarcoma, or undifferentiated sarcoma will be considered.
  • Melanoma
  • Uveal Melanoma
  • Participants must have histologically or cytologically confirmed recurrent and/or metastatic uveal melanoma and received at least one but no more than two prior lines of systemic anti-cancer therapy including tebentafusp (if HLA-A 02:01+, unless patient declined or was deemed ineligible) and/or immune checkpoint inhibitor. Melphalan PHP will count as a line of therapy if give on its own. Unlimited partial hepatic directed therapy will be permitted.
  • Mucosal and Acral melanoma
  • Participants must have histologically or cytologically confirmed recurrent and/or metastatic mucosal or acral melanoma and received at least one but no more than two prior lines of systemic anti-cancer therapy including prior exposure to immune checkpoint inhibition. Patients treated with BRAF-MEK therapy may have up to 3 prior lines of therapy.
  • Non small cell lung cancer
  • Participants must have histologically or cytologically confirmed locally advanced/metastatic non-small cell lung cancer with prior exposure to immune checkpoint inhibition and received at least one but no more than 2 prior lines of systemic anti-cancer therapy.
  • Participants must have histologically or cytologically confirmed locally advanced/metastatic sarcoma and must have received at least one but no more than 2 prior lines of systemic anti-cancer therapy. Patients will receive palliative radiation therapy to a tumor site if they have at least one other site of measureable disease that can be chosen as the target lesion to assess response to investigational therapy
  • Adequate performance status: ECOG 0 or 1/KPS 100-70%.
  • Life expectancy of at least three months after the first CRD3874 infusion, according to the Investigator's opinion
  • Presence of measurable disease per RECIST v1.1.Target lesion(s) must not be chosen from a previously irradiated field unless there has been radiographically and/or pathologically documented tumor progression in that lesion prior to enrollment.
  • In the dose expansion phase , participants must agree to have a pretreatment tumor biopsy for research purposes. Participants in whom biopsy is technically not feasible or in whom the associated procedure would result in unacceptable risk, in the opinion of the Investigator, or patients who do not wish to have a biopsy, archival tissue (most recently procured sample where tissue is available) may be used instead, if available.
  • In the dose expansion phase , participants must agree to on-treatment tumor biopsy for research purposes. Participants in whom biopsy is technically not feasible or in whom would result in unacceptable risk, in the opinion of the Investigator, or patients who do not wish to have a biopsy- may be exempted from the biopsy requirement with discussion with the Principal Investigator .
  • Female subject of childbearing potential (defined as a sexually mature female who has not undergone a hysterectomy or bilateral oophorectomy or who has not been naturally postmenopausal for at least 24 consecutive months) should have a negative serum pregnancy testing at screening visit and within 72 hours prior to the first dose of study medication.
  • Adequate organ function determined within 14 days of treatment initiation, defined as follows:
  • Hemoglobin ≥ 9.0 g/dL
  • Absolute neutrophil count ≥ 1,000/mm^3 (1.0 x 10^9/L)
  • Platelet count ≥ 100,000/mm3 (100 x 10^9 /L)
  • Serum bilirubin ≤ 1.2x upper limit of normal (ULN) OR direct bilirubin ≤ ULN for participants with total bilirubin level > 1.2x ULN
  • Aspartate aminotransferase (AST) ≤ 2.5x ULN OR ≤ 5x ULN for participants with liver metastases
  • Alanine aminotransferase (ALT) ≤ 2.5x ULN OR ≤ 5x ULN for participants with liver metastases
  • Albumin ≥ 2.5mg/dL.
  • Calculated creatinine clearance (CrCl) ≥ 50 mL/min by Cockcroft-Gault formula or CKD-EPI 2021
  • International Normalized Ratio (INR) or prothrombin time (PT) ≤1.5x ULN unless participant is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants.
  • Activated partial thromboplastin time (aPTT) ≤ 1.5x ULN unless participant is receiving anticoagulant therapy as long as PT and PTT is within therapeutic range of intended use of anticoagulants
  • Left ventricular ejection fraction (LVEF) > 50%, as measured by echocardiogram (2D-ECHO) or multi-gated acquisition scan (MUGA)

Who cannot join

  • Known prior severe hypersensitivity to an investigational product or any component of the study drug therapy's formulations including polyethylene glycol (PEG), (NCI CTCAE v5.0 Grade ≥ 3)
  • Evidence of clinically significant immunosuppression such as the following:
  • Primary immunodeficiency state such as Severe Combined Immunodeficiency Disease
  • Concurrent opportunistic infection
  • Receiving systemic immunosuppressive therapy (> 2 weeks) including oral steroid doses > 10 mg/day of prednisone or equivalent within 7 days prior to enrollment. In the setting of non-immune mediated indications for use, chronic/active low dose steroid (equivalent to </=10mg/day prednisone) use may be permitted at the discretion of the principal investigator.
  • Current use of immunosuppressive medication, EXCEPT for the following:
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  • Intranasal, inhaled, ocular, topical steroids, or local steroid injection (e.g., intraarticular injection) II. Systemic corticosteroids at physiologic doses ≤ 10 mg/day of prednisone or equivalent III. Steroids as premedication for hypersensitivity reactions (e.g., CT scan premedication)
  • Prior organ transplantation, including allogenic stem-cell transplantation. Consideration will be given to allow patients with a history of autologous transplantation enroll if they are at least 5 years beyond the completion of the transplant pending discussion with the principal investigator.
  • History or evidence of symptomatic autoimmune disease (e.g., pneumonitis, glomerulonephritis, vasculitis, or other), or history of active autoimmune disease that has required systemic treatment (i.e., use of corticosteroids, immunosuppressive drugs or biological agents used for treatment of autoimmune diseases) in past 2 years prior to enrollment. Replacement therapy (e.g., thyroxine for hypothyroidism, insulin for diabetes or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment for autoimmune disease.
  • Systemic antibiotics received ≥ 7 days prior to the first dose of study drugs.
  • Uncontrolled medical condition including current active infection requiring systemic therapy or symptomatic congestive heart failure within 6 months that in the investigators opinion compromise the ability of the patient to complete all study related requirements safely
  • Inability to comply with protocol required procedures
  • Resting QTc interval by Friderica's formula ≥ 470 ms on a 12-lead electrocardiogram (ECG) for males and females
  • Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment or 5 half-lives, if shorter.
  • Has had prior chemotherapy or targeted small molecule therapy within 3 weeks, anti-cancer monoclonal antibody (mAb) within 4 weeks or OR 5 half-lives, if shorter, or radiation therapy within 2 weeks prior to the first CRD3874 infusion prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at baseline) from adverse events due to a previously administered agent
  • Note: Alopecia or other Grade ≤ 2 not constituting a safety risk based on investigator's judgment are acceptable
  • Note: If patient received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study therapy
  • Evidence of clinically significant interstitial lung disease, history of interstitial lung disease, or active, noninfectious pneumonitis related to prior immunotherapy treatment.
  • History of unstable or deteriorating cardiovascular disease within the previous 6 months prior to screening including but not limited to the following:
  • Unstable angina or myocardial infarction
  • CVA/stroke
  • Congestive heart failure (New York Heart Association [NYHA] Class III or IV
  • Uncontrolled clinically significant arrhythmias.
  • Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis.
  • Patients with previously treated brain metastases or carcinomatous meningitis may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to trial treatment.
  • Has received a live vaccine within 30 days of the planned start of study drug. Note: Seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist®) are live attenuated vaccines, and are not allowed.
  • Patients known to be positive for active Hepatitis B (HBsAg reactive with detectable HBV DNA), or Hepatitis C (HCV RNA (qualitative) is detected)
  • Patients with chronic hepatitis B (positive HBsAg and/or HBcAb and negative HBV DNA by PCR) are eligible for this study if they are on suppressive anti-viral therapy and deemed safe by a gastroenterologist
  • Patient who is HCV Ab positive but HCV RNA negative due to prior treatment or natural resolution will be considered eligible.
  • Known history of human immunodeficiency virus (HIV) (HIV 1/2 antibodies) disease that is not controlled. Note HIV-positive patients will be considered eligible if:
  • Established ART for at least four weeks and have an HIV viral load less than 400 copies/mL prior to enrollment
  • CD4+ T-cell (CD4+) counts ≥ 350 cells/uL
  • No opportunistic infection within the past 12 months
  • Has a known history of active TB (Bacillus Tuberculosis)
  • Women who are pregnant or breastfeeding
  • Patients expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through three months after the last dose of study treatment(s).
  • Female participants of childbearing potential and male participants who are unwilling to use acceptable method(s) of effective contraception during study treatment and until six months for female and three months for males after the last dose of CRD3874-SI. Abstinence is acceptable if this is the usual lifestyle and preferred contraception for the participant.
  • (Note: Women not of childbearing potential are defined as: Any female who is postmenopausal [age > 55 years with cessation of menses for 12 or more months or less than 55 years but with no spontaneous menses for at least two years or less than 55 years and spontaneous menses within the past one year but currently amenorrheic (e.g., spontaneous or secondary to hysterectomy) and with postmenopausal gonadotropin levels (luteinizing hormone and follicle-stimulating hormone levels > 40 IU/L) or postmenopausal estradiol levels (< 5 ng/dL) or according to the definition of "postmenopausal range" for the laboratory involved] or who have had a hysterectomy, bilateral salpingectomy, or bilateral oophorectomy.)
  • The presence of a concurrent active malignancy that in the opinion of the investigator could compromise the conduct of the study or interfere with determining the outcomes of the study objectives.
  • History of non-infectious colitis.

Trial locations and contacts

7 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Ciara Kelly, MBBChBAO contact

646-888-4312

zzPDL_MED_Sarcoma_Clinical_Trials <zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org>

Sandra D'Angelo contact

646-888-4159

zzPDL_MED_Sarcoma_Clinical_Trials <zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org>

7 sites in 1 country

United States7 sites, 7 recruiting

  • Memorial Sloan Kettering at Basking Ridge (Limited Protocol Activities)

    Basking Ridge, New Jersey, 07920

    Ciara Kelly, MBBCH BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Recruiting

  • Memorial Sloan Kettering Suffolk - Commack (Limited Protocol Activities)

    Commack, New York, 11725

    Ciara Kelly, MBBCH BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Recruiting

  • Memorial Sloan Kettering Westchester (Limited Protocol Activities)

    Harrison, New York, 10604

    Ciara Kelly, MBBCH BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Recruiting

  • Memorial Sloan Kettering Monmouth (Limited Protocol Activities)

    Middletown, New Jersey, 07748

    Ciara Kelly, MBBCH BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Recruiting

  • Memorial Sloan Kettering Bergen (Limited Protocol Activities)

    Montvale, New Jersey, 07645

    Ciara Kelly, MBBCH BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Recruiting

  • Memorial Sloan Kettering Cancer Center (All Protocol Activities)

    New York, New York, 10065

    Ciara Kelly, MBBCh BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Ciara Kelly, MBBCh BAO

    Recruiting

  • Memorial Sloan Kettering Nassau (Limited Protocol Activities)

    Rockville Centre, New York, 11553

    Ciara Kelly, MBBCH BAO, 646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org

    Recruiting

Other trials in United States

About this study

Official title: A Phase I Trial of CRD3874-SI, a STING Agonist, in Patients With Advanced/Metastatic Malignant Solid Tumors

This study will test the safety of a study drug called CRD3874-SI. The researchers will test different doses of CRD3874-SI to find the highest dose that causes few or mild side effects in participants. After the researchers find the highest safe dose of CRD3874-SI, they will test that dose in new groups of participants to help them learn more about the side effects of the study drug and find out whether CRD3874-SI is an effective treatment for for patients with advanced or metastatic malignant solid tumors including sarcoma and Merkel Cell Carcinoma. (MCC), Head and neck squamous cell carcinoma (HNSCC), Adenoid cycstic carcinoma (ACC), Uveal Melanoma, Muscosal and Acral melanoma, and Non small cell lung cancer. The researchers will also look at how the body absorbs, distributes, and gets rid of CRD3874-SI, and the how the body and immune system respond to CRD3874-SI.

Being tested
CRD3874
Keywords
CRD3874-SI, 23-169, Advanced/Metastatic Malignant Solid Tumors
Medical subject headings
Sarcoma, Carcinoma, Merkel Cell

What participants receive

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

  • CRD3874Drug

    Starting dose is 0.1 mg/kg for weekly IV infusion of CRD3874-SI.

    Cohort CRD3874-SI Dose level (mg/kg)

    1. 0.1
    2. 0.3
    3. 0.9
    4. 1.8
    5. 2.7
    6. 4.05
Study groups in NCT06021626
Study groupRoleWhat they receive
CRD3874-SIExperimentalPhase 1a: starting dose of 0.1 mg/kg, Phase 1b: RP2D determined during Phase 1a. Cycle 1 \& 2: once weekly infusion x 4 (Days 1, 8, 15, 22) over 28-day cycle. Cycle 3 onwards: weekly infusion x 3 (Days 1, 8, 15) over 28-day cycle From cycle 3 on wards if a patient is tolerating treatment well and agreeable to continue continuous weekly treatment this will be permitted. The dose expansion phase will explore CRD3874-SI at the RP2D and one additional clinically active dose levels in select solid tumor type. In the dose expansion phase, research blood tests for Peripheral blood mononuclear cells (PBMCs) will be performed before study drug administration on Day 1 of Cycles 1, 2 and 3 and the EOT visit (± 3 days).
Receives: Drug: CRD3874

What is being measured

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

  1. maximum tolerated dose (MTD)

    The MTD is defined as the highest dose level studied at which <2 subjects out of 6 experience a DLT. A dose level under consideration as the MTD will be expanded to six patients if only three have been accrued.

    Measured: 1 year

  2. objective response rate (ORR) (Dose expansion)

    by RECIST v1.1

    Measured: up to 48 weeks

Timeline

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

  1. First posted1 Sep 2023
  2. Study start25 Aug 2023
  3. Primary completionAug 2029 (estimated)
  4. Study completionAug 2029 (estimated)

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Sequential
Model description
This is a single center, phase I study with escalation and expansion cohort.
Masking
None (open label)
Enrolment
81 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06021626
Sponsor's protocol ID
23-169
Status last verified
Sep 2026
First submitted
28 Aug 2023
Last updated
21 Sep 2026
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CRD3874 in people with Sarcoma and Merkel Cell Carcinoma, run by Memorial Sloan Kettering Cancer Center at 7 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 43 inclusion and 40 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 21 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 Ciara Kelly, MBBChBAO (646-888-4312, zzPDL_MED_Sarcoma_Clinical_Trials <zzPDL_MED_Sarcoma_Clinical_Trials@mskcc.org>), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

maximum tolerated dose (MTD) (time frame: 1 year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06021626.

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 21 Sep 2026.

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