New pill aims to tame dangerous immune storms from cancer therapy
NCT ID NCT05905328
First seen Jun 24, 2026 · Last updated Sep 01, 2026 · Updated 3 times
Summary
This study tests a drug called CTO1681 in 54 adults with diffuse large B-cell lymphoma who are about to receive CAR-T therapy. The drug is taken three times daily for 15 days to prevent or reduce cytokine release syndrome, a potentially severe immune reaction. Researchers will monitor side effects and how well the drug controls CRS.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- CTO1681 (a drug taken orally three times daily for 15 days)
- What this could lead to
- If it works, CTO1681 could reduce the severity of cytokine release syndrome, a common and serious side effect of CAR-T therapy, making treatment safer.
- What could go wrong
- This is an early-phase trial with only 54 participants, so results may not apply broadly. The drug may not reduce CRS or could cause its own side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 54 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2023
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age 18 years or older. 2. Undergone leukapheresis and is scheduled to receive protocol-specified CAR T-cell therapy (axicabtagene ciloleucel, lisocabtagene maraleucel, idecabtagene vicleucel, or ciltacabtagene autoleucel) for relapsed or refractory lymphoma or multiple myeloma. All patients must have relapsed or refractory disease to at least one prior line of systemic therapy. Prior CAR T-cell therapy is allowable with approval from the Sponsor and Medical Monitor. 3. Met all inclusion criteria for CAR T-cell therapy per institutional guidelines. 4. Adequate organ function defined as: 1. Estimated Creatinine Clearance per Cockroft Gault formula ≥ 60 mL/min. 2. Serum alanine aminotransferase/aspartate aminotransferase ≤ 2.5 × ULN. 3. Total bilirubin ≤ 1.5 × ULN. 4. Left ventricular ejection fraction ≥ 40% on echocardiogram or multigated acquisition and no clinically significant pericardial effusion. 5. Platelets ≥ 50,000/mm3. 6. Absolute neutrophil count \> 1000/μL. 7. Absolute lymphocyte count \> 100/μL. 5. Disease specification must match the indication described in the product label of the planned CAR T-cell product. 6. Eastern Cooperative Oncology Group performance status 0 to 1. 7. Female participants of childbearing potential and all male participants must agree to use Investigator-approved methods of birth control while on study drug and for 30 days thereafter. 8. Patients who are willing to provide written informed consent before the predose procedures, or patients who have a legal representative capable of providing informed consent on their behalf. Exclusion Criteria: 1. Any cytotoxic chemotherapy within 14 days prior to leukapheresis. 2. Clinically significant malabsorption syndromes and swallowing difficulties which are inadequately controlled with medication (eg, odynophagia, dysphagia, gastroesophageal reflux disease) as per Investigator assessment. 3. Grade 2 or greater electrolyte imbalance, per CTCAE v5.0: 1. Potassium \< 3.0 or \> 5.5 mmol/L 2. Sodium \< 130 or \> 150 mmol/L 3. Calcium \< 8.0 or \> 11.5 mg/dL 4. Magnesium \< 0.5 or \> 1.23 mmol/L 4. Clinically significant ECG abnormality at Screening or Baseline (Day -1), including but not limited to, a confirmed QTcF value \> 470 msec. Patients to be excluded included those with QTcF readings that are borderline or difficult to interpret because of a condition such as bundle branch block, or in those where the end of the T wave is difficult to measure. This also includes any Grade 2 or greater conduction block disorder, atrial, or ventricular arrythmia. A patient with an ECG abnormality may be enrolled only after approval by the Medical Monitor and Sponsor. 5. Active central nervous system (CNS) lymphoma (history of CNS involvement may be allowable only after approval by the Medical Monitor and Sponsor). 6. Any clinically significant (ie, active) cardiovascular disease, including cerebral vascular accident/stroke (\< 6 months before enrollment), myocardial infarction (\< 6 months before enrollment) or unstable angina, and congestive heart failure ≥ New York Heart Association Classification Class III. 7. Uncontrolled thromboembolic events or recent severe hemorrhage within the last 6 months. 8. Known history of any bleeding disorder. 9. Requirement for ongoing therapeutic doses of anticoagulant therapy, antiplatelet or fibrinolytic agents (low molecular weight heparin prophylaxis is allowed). 10. Baseline systolic blood pressure \<100 mmHg. 11. History of autoimmune disease/ graft versus host disease requiring immunosuppressive therapy within the last 2 years. However, physiologic steroids may be given at a dose of 5 mg or less (prednisone equivalent). 12. Patients who, in the opinion of the Investigator, would be unlikely to comply with study procedures or are otherwise unsuitable for enrollment. 13. Planned prophylactic treatment for CRS or ICANS with corticosteroids or any immunomodulatory or anticytokine therapies (including but not limited to tocilizumab and anakinra).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
6 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beth Israel Deaconess Medical Center
RECRUITINGBoston, Massachusetts, 02215, United States
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Duke Cancer Institute
RECRUITINGDurham, North Carolina, 27705, United States
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Fred Hutchinson Cancer Center
RECRUITINGSeattle, Washington, 98109, United States
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Georgia Cancer Center at Augusta University
RECRUITINGAugusta, Georgia, 30912, United States
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University of California, Irvine - Chao Family Comprehensive Cancer Center
RECRUITINGOrange, California, 92868, United States
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University of Pittsburgh Medical Center
RECRUITINGPittsburgh, Pennsylvania, 15232, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Cheap blood count ratios eyed as window into Myeloma's inflammatory grip
- Can a t-cell engager rescue myeloma that outsmarted CAR-T?
- Can myeloma treatment work without steroids?
- Double-Drug attack on Hard-to-Treat lymphomas
- Banking blood and bone marrow to decode plasma cell disorders
- Chemotherapy plus immunotherapy tested against rare EBV-Driven immune storm