Clinical trials
Refractory clinical trials
Below are recruiting refractory clinical trials, each written for real people, not researchers. We’re tracking 1,200 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05672147RecruitingPhase 1
CD33 CAR T cells for hard-to-treat AML
This Phase 1 study tests a personalized immune-cell treatment (CD33 CAR T cells) for adults with AML that has returned or did not respond to treatment. It aims to see how safe the therapy is and how well it works for AML cells that carry the CD33 marker.
Duarte, CaliforniaAges 18 years+ - NCT05634369RecruitingPhase 1/Phase 2
NK cell and chemotherapy trial for relapsed soft tissue sarcoma
This early-phase trial studies a type of immune cell treatment (NK cells) made from donor cells, given with chemotherapy drugs gemcitabine and docetaxel. It’s for children and young adults whose bone or soft tissue sarcoma has come back or hasn’t responded to prior treatment.
South Birmingham, AlabamaAges 2–40 - NCT05556642Recruiting
Liver tumor registry for children with relapsed cancer
This study collects information and may collect fresh tumor tissue to better understand and model relapsed or hard-to-treat liver tumors. Joining could help researchers develop future treatments and more personalized research for affected patients.
Cincinnati, OhioAges Any age - NCT05519085RecruitingPhase 3
Test mezigdomide vs pomalidomide with standard drugs for myeloma
This Phase 3 study compares two combination treatments for multiple myeloma that has come back or not gone away (relapsed or refractory). It aims to see whether mezigdomide, along with bortezomib and dexamethasone, works better than pomalidomide with those same medicines.
Los Alamitos, CaliforniaAges 18 years+ - NCT05366218RecruitingPhase 1/Phase 2
Tafasitamab for kids with high-risk B-cell leukemia after relapse
This Phase 1/2 study tests tafasitamab in children and teens with B-lineage acute lymphoblastic leukemia (ALL) that has come back or did not respond. It is mainly for patients with specific high-risk leukemia changes and/or leukemia markers that stay after stem cell transplant or CAR T-cell therapy.
Freiburg im Breisgau, Baden-WurttembergAges 3–18 - NCT05105152RecruitingPhase 1
CAR T cell therapy for kids with CD33 AML that came back
This Phase 1 study tests a type of lab-made immune cell therapy (CAR T cells) made from your T cells to treat AML that has relapsed or not responded, as long as the cancer shows a marker called CD33. The goal is to see if the treatment is safe and can help control AML after it returns or resists standard therapy.
Seattle, WashingtonAges Up to 30 years - NCT05227326RecruitingPhase 1
A new drug for solid cancers that did not respond to usual care
This early-stage (Phase 1) trial tests AOH1996 in adults with solid tumors that have stopped responding to standard treatments. It’s meant to find a safe dose and see if the drug can help, especially in cancers with limited options.
Scottsdale, ArizonaAges 18 years+ - NCT05102019Recruiting
Device implant for severe angina using a coronary sinus reducer
This trial tests whether implanting a small device in the heart’s coronary sinus can reduce symptoms in people with long-lasting “refractory” angina despite taking the usual heart medicines. It may help improve how much activity you can do and reduce angina-related limitations.
Phoenix, ArizonaAges 18 years+ - NCT05110144RecruitingPhase 2
Testing two doses of two nerve pain medicines for chronic cough
This Phase 2 study tests whether two doses of duloxetine and amitriptyline can reduce symptoms in people with chronic cough that hasn’t responded to usual care. You may join to see if these medicines lessen cough severity over an 8-week blinded treatment period.
Rochester, MinnesotaAges 18–75 - NCT05046444Recruiting
Testing tricky blood cancer diagnoses with advanced DNA sequencing
This study uses advanced DNA sequencing to figure out unclear or unusual blood (hematologic) conditions when standard tests are not enough. It may help your care team reach a more accurate diagnosis by better understanding what’s driving your illness.
MunichAges 18–99 - NCT05052528RecruitingPhase 1
CAR T cell therapy for relapsed or refractory large B-cell lymphoma
This trial tests whether adding a targeted antibody (rituximab) before CAR T cell therapy improves outcomes for patients with diffuse large B-cell lymphoma that has come back or not responded to at least two prior treatments.
Sacramento, CaliforniaAges 18 years+ - NCT05010122RecruitingPhase 1/Phase 2
Testing venetoclax and gilteritinib with ASTX727 for FLT3 leukemia
This Phase 1/2 trial tests a combination of medicines (ASTX727, venetoclax, and gilteritinib) for adults with FLT3-mutated acute myeloid leukemia (AML) or high-risk myelodysplastic syndrome (MDS). It aims to see how well the treatment works and how safe it is for people whose disease has come back, is not responding, or (for some) is newly diagnosed.
Houston, TexasAges 18 years+ - NCT04989803RecruitingPhase 1/Phase 2
Tested two lymphoma cell therapies for relapsed or resistant cancer
This trial studies two investigational cell therapies (KITE-363 or KITE-753) in people whose B-cell lymphoma has returned or did not respond to prior treatment. The goal is to see how safe the treatments are and how well they can shrink the lymphoma.
Gilbert, ArizonaAges 18 years+ - NCT04989621RecruitingPhase 2
Orelabrutinib plus rituximab for relapsed follicular lymphoma
This Phase 2 study tests whether orelabrutinib combined with rituximab, followed by orelabrutinib alone for a while, can control follicular lymphoma that has come back or did not respond. It may help shrink tumors and keep the disease from worsening after initial response.
Guangzhou, GuangdongAges 18 years+ - NCT04774393RecruitingPhase 1/Phase 2
Study for AML after it returns or resists treatment
This Phase 1/2 trial tests a combination of medicines (decitabine/cedazuridine, venetoclax, and ivosidenib or enasidenib) in people with acute myeloid leukemia (AML) that has come back or hasn’t responded. It may help control the leukemia by targeting cancer cells and specific genetic changes in the leukemia.
Houston, TexasAges 18 years+ - NCT04744116RecruitingEarly Phase 1
Cord blood cell therapy added to ruxolitinib for steroid-resistant GVHD
This trial studies whether adding cord-blood–derived cells to ruxolitinib can improve steroid-resistant acute graft-versus-host disease (GVHD) affecting the lower gut or liver. It’s meant for people who are not getting better (or are worsening) despite adequate steroid treatment.
Houston, TexasAges 12–80 - NCT04545762RecruitingPhase 1
Anti-CD19 CAR-T for certain relapsed lymphoma
This Phase 1 study tests an anti-CD19 CAR-T cell treatment in adults with specific types of relapsed or treatment-resistant non-Hodgkin lymphoma. It may help by finding and attacking lymphoma cells that carry the CD19 marker, but it’s early-stage and eligibility is strict.
San Francisco, CaliforniaAges 18 years+ - NCT04587687RecruitingPhase 2
Brentuximab plus bendamustine for relapsed follicular lymphoma
This Phase 2 trial studies the combination of brentuximab vedotin and bendamustine in people whose follicular lymphoma has come back or did not respond. It aims to shrink the lymphoma and improve outcomes after at least one prior treatment.
Sacramento, CaliforniaAges 18 years+ - NCT04508790RecruitingPhase 2
Leflunomide plus pomalidomide with dexamethasone for relapsed myeloma
This trial studies whether a combination of three medicines (leflunomide, pomalidomide, and dexamethasone) can better treat multiple myeloma that has come back or stopped responding. It may help people who are not good candidates for transplant and who have measurable disease.
Duarte, CaliforniaAges 18 years+ - NCT04337580RecruitingPhase 2
Test a fatty-acid drug for docetaxel-resistant prostate cancer
This Phase 2 study tests whether blocking fatty-acid production can slow castration-refractory prostate cancer that has already progressed after docetaxel. It may help by targeting cancer growth when standard hormone-level treatments are no longer working.
Salisbury, North CarolinaAges 18 years+ - NCT04239157RecruitingPhase 2
Canakinumab shot for lower-risk MDS and related blood disorders
This trial tests canakinumab, a medication that blocks inflammation, given as a skin (subcutaneous) injection. It is for adults with lower-risk myelodysplastic syndromes (MDS) or a related condition (chronic myelomonocytic leukemia or CCUS) to see if it can improve blood counts and reduce problems like anemia or transfusion needs.
Houston, TexasAges 18 years+ - NCT03739814RecruitingPhase 2
Test inotuzumab, blinatumomab, and possibly ponatinib for CD22 ALL
This Phase 2 study tests a combination of medicines (inotuzumab ozogamicin and blinatumomab), with or without ponatinib, for people with CD22-positive B-cell acute lymphoblastic leukemia (ALL). It aims to improve remission and control leukemia cells, including in the bone marrow.
Birmingham, AlabamaAges 18 years+ - NCT03838926RecruitingPhase 1
Testing how safe and tolerable a new drug is for blood cancers
This Phase 1 study tests how safe and tolerable trichostatin A is in adults whose blood cancers have come back or did not respond to standard treatments. It may help researchers find an effective dose while monitoring side effects closely.
Washington D.C., District of ColumbiaAges 18 years+ - NCT03686124RecruitingPhase 1/Phase 2
Tested immune therapy for certain HLA-A2 positive solid tumors
This trial studies an immune-based cancer treatment (IMA203/IMA203CD8) either alone or with nivolumab in people whose solid tumors have come back or will not respond to standard care. It may help by training the immune system to recognize and attack tumor cells that match the trial’s test requirements.
Stanford, CaliforniaAges 18 years+
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Common questions
- Are there clinical trials for refractory?
- Yes. Clin2 currently lists 1,200 recruiting refractory studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a refractory trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a refractory trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.