Pfizer
Clinical trials sponsored by Pfizer, explained in plain language.
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MRNA shingles vaccine trial ends early – what we know
⭐️ VACCINE ⭐️ TerminatedThis study tested several experimental mRNA vaccines against shingles in healthy adults aged 50 to 85. The goal was to check safety and immune response compared to the current shingles vaccine, Shingrix. The trial was terminated early, so results are limited, but the data may hel…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: ⭐️ VACCINE ⭐️
Last updated Jun 27, 2026 12:29 UTC
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New daily pill aims to tame Crohn's Flare-Ups
Disease control TerminatedThis trial investigates whether an oral medication called etrasimod can help people with moderate to severe Crohn's disease who have not responded well to other treatments. Participants take either etrasimod or a placebo daily for up to several years. The study measures improveme…
Phase: PHASE2, PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jul 02, 2026 01:00 UTC
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Children's heartburn drug study halted early
Disease control TerminatedThis study looked at whether a full or half dose of pantoprazole could keep the esophagus healed in children aged 1 to 17 who had erosive esophagitis. The goal was to see which dose worked better and was safer. The study was stopped early, so results are limited.
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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Experimental cancer drug trial halted early
Disease control TerminatedThis early-stage study tested a new drug called PF-07265807 in people with advanced or metastatic solid tumors that had spread. The main goals were to find a safe dose and check for side effects. The trial was terminated early, so results are limited.
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 13:04 UTC
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Experimental cancer drug study halted early
Disease control TerminatedThis early-stage study tested a new drug called PF-07284892, alone or with other medicines, in people with advanced solid tumors that had specific genetic changes. The goal was to find the safest dose and check for side effects. The study was stopped early, so results are limited…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 13:02 UTC
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Pfizer's new cancer pill tested in advanced tumors – study halted early
Disease control TerminatedThis early-stage study tested a new cancer pill (PF-07985045) alone or with other drugs in people with advanced solid tumors that have a KRAS gene mutation. The trial included patients with lung, colon, or pancreatic cancer. The study aimed to check safety and find the right dose…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 12:36 UTC
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Early trial of experimental cancer combo halted after just 6 patients
Disease control TerminatedThis early-phase study tested a new drug called PF-08046032, given alone or with another drug (sasanlimab), in adults with advanced lymphomas or solid tumors like lung cancer and melanoma. The trial aimed to check safety and find the right dose, but it was terminated early after …
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 12:30 UTC
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Experimental combo targets Hard-to-Treat lymphoma
Disease control TerminatedThis study tested two experimental drugs, maplirpacept and glofitamab, given after a single dose of obinutuzumab, in adults with diffuse large B-cell lymphoma (DLBCL) that had returned or not responded to prior treatments. Participants had already tried at least two standard ther…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 12:28 UTC
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Pfizer tests new drug cocktail for Hard-to-Treat myeloma
Disease control TerminatedThis study tested elranatamab, a bispecific antibody that helps the immune system attack cancer cells, in combination with other drugs for people with multiple myeloma that had stopped responding to at least three prior treatments. The trial aimed to find the safest dose and see …
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Pfizer's new cancer drug combo tested in tiny early trial
Disease control TerminatedThis early-stage study tested a new drug called PF-08046037, alone or with another drug (sasanlimab), in 8 people with advanced lung, pancreatic, melanoma, or head & neck cancers. The goal was to check safety and how the body handles the drugs. The trial was terminated early, so …
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Pfizer tests new drug combo for advanced cancers – but study ends early
Disease control TerminatedThis early-phase study tested a new drug called PF-07921585, given alone or with another drug (sasanlimab), in adults with advanced solid tumors like lung, bladder, kidney, melanoma, head & neck, or colorectal cancer. The goal was to check safety and find the right dose. Only 4 p…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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Sickle cell drug safety trial ends early
Disease control TerminatedThis study looked at the long-term safety of the drug osivelotor in people with sickle cell disease who had already taken it in an earlier trial. The goal was to track side effects and blood changes over time. However, the study was terminated early, so the full safety picture is…
Phase: PHASE2, PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 11:03 UTC
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Early trial of PF-08046031 for advanced cancers ends early
Disease control TerminatedThis early-stage study tested a new drug called PF-08046031 in 11 adults with advanced melanoma or other solid tumors that had spread or had no standard treatment options. The main goal was to check the drug's safety and side effects. The trial was terminated early, so its findin…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 11:03 UTC
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Lupus skin drug trial halted early – only 8 volunteers joined
Disease control TerminatedThis study tested an experimental drug called PF-06823859 for adults with lupus that affects the skin. The goal was to see if the drug could reduce skin inflammation and improve symptoms. The trial was stopped early and only enrolled 8 people instead of the planned 48, so results…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 11:01 UTC
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New Three-Drug cocktail takes on tough melanoma
Disease control TerminatedThis study tested whether a three-drug combination (encorafenib, binimetinib, and pembrolizumab) works better than a two-drug combo (ipilimumab and nivolumab) for people with advanced melanoma that has a BRAF mutation and has already been treated with anti-PD-1 therapy. The trial…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 11:00 UTC
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Sickle cell drug trial in kids halted early – but data may still help
Disease control TerminatedThis study tested a daily pill called voxelotor in children aged 2 to 14 with sickle cell disease who had slightly abnormal blood flow in the brain. The goal was to see if the drug could improve that blood flow and reduce stroke risk. The trial was stopped early, but the results …
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 11:00 UTC
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New cancer drug shows early promise, but trial cut short
Disease control TerminatedThis early-stage study tested a new drug called PF-07826390, given alone or with another drug (sasanlimab), in people with advanced solid tumors like lung, kidney, and colorectal cancers. The goal was to check safety and find the right dose. Only 10 people took part, and the stud…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 09:08 UTC
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Pfizer's ulcerative colitis pill study halted early
Disease control TerminatedThis study tested an experimental oral drug, PF-07054894, in adults aged 18-75 with mild to severe ulcerative colitis (UC). The goal was to see if the drug could safely help control the disease and reduce symptoms like diarrhea and rectal bleeding. The trial was terminated early,…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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Early trial of experimental cancer combo halted after 21 patients
Disease control TerminatedThis early-stage study tested an experimental oral drug (PF-07265028) alone or combined with an immunotherapy injection (sasanlimab) in 21 people with advanced solid tumors, including stomach, lung, and head/neck cancers. The main goals were to find a safe dose and check for side…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 09:06 UTC
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Pfizer tests experimental pill to help older adults regain lost appetite
Disease control TerminatedThis early-stage study tested an experimental drug called PF-07258669 in older adults (ages 60-89) who are at risk of malnutrition. The goal was to see if the drug is safe and how it affects the body. Participants took the drug or a placebo for 16 weeks. The study was terminated …
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 09:02 UTC
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Lung cancer combo trial halted early – what we know
Disease control TerminatedThis early-phase trial tested the immunotherapy drug sasanlimab combined with various targeted therapies in 34 people with advanced non-small cell lung cancer. The goal was to check safety and find the right doses. However, the study was terminated early, meaning we have limited …
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC
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New RSV drug tested in kids – but trial halted early
Disease control TerminatedThis study tested the safety and dosing of sisunatovir, an experimental antiviral drug, in infants and children up to 5 years old with RSV lower respiratory tract infection. Ten participants received either the drug or a placebo. The goal was to find the right dose for future stu…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:07 UTC
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Sickle cell drug oxbryta tracked in real life: what happened?
Disease control TerminatedThis study followed 265 people with sickle cell disease who were taking Oxbryta (voxelotor) as part of their normal care. Researchers wanted to see how the drug affected hemoglobin levels, sickle cell complications, and overall health over up to 5 years. The study was observation…
Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:07 UTC
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Real-World tofacitinib study in ulcerative colitis ends early
Disease control TerminatedThis study looked at how well the drug tofacitinib (Xeljanz) works for people with moderate to severe ulcerative colitis in everyday medical practice in Switzerland. It measured symptom improvement and gut inflammation using stool samples. The study was small with 18 participants…
Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:05 UTC
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Sickle cell drug inclacumab safety checked in long-term study
Disease control TerminatedThis study looks at the long-term safety of inclacumab in people with sickle cell disease who have already taken the drug in a previous study. It tracks side effects and how often pain crises occur. The goal is to see if long-term use is safe and helps control the disease.
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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Smart device helps arthritis patients stay on track
Disease control TerminatedThis study looked at whether a smart injection device (Smartclic) helps rheumatoid arthritis patients take their etanercept medication as prescribed. Researchers tracked 60 patients in Colombia for 40 weeks, measuring how often they used the device and how their symptoms changed.…
Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:59 UTC
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Sickle cell drug voxelotor tested for Long-Term safety
Disease control TerminatedThis study looked at the long-term safety of voxelotor (a daily pill) in 179 people with sickle cell disease who had already taken it in a previous trial. Participants continued taking the drug and were monitored for side effects and complications like pain crises. The trial was …
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:58 UTC
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New pill shows promise against tough breast and ovarian cancers
Disease control TerminatedThis study tested an experimental drug (PF-06873600) taken by mouth, alone or with hormone therapy, in people with advanced breast or ovarian cancers. The goal was to check safety and see if the drug could shrink tumors. The trial was stopped early, but results help guide future …
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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Sickle cell drug voxelotor tested for Long-Term safety – but trial ends early
Disease control TerminatedThis study looked at the long-term safety of the drug voxelotor in 162 people with sickle cell disease who had already taken it in earlier trials. Everyone received voxelotor once daily. The main goal was to track side effects. The trial was terminated early, so the full safety p…
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:57 UTC
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RSV pill study halted early: what we know
Disease control TerminatedThis study tested an oral drug called sisunatovir for treating RSV in adults who were not hospitalized but had a high risk of severe illness. Participants took either the drug or a placebo for 5 days. The study was terminated early, so results are limited.
Phase: PHASE2, PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:56 UTC
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Experimental gene therapy targets duchenne MD in young boys
Disease control TerminatedThis Phase 2 trial tested a single dose of gene therapy (fordadistrogene movaparvovec) in 10 boys with early-stage Duchenne muscular dystrophy. The goal was to check safety and whether the therapy could help muscles produce a mini-dystrophin protein. The study was terminated earl…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:55 UTC
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Gene therapy for duchenne muscular dystrophy under Long-Term watch
Disease control TerminatedThis study follows 7 people with Duchenne muscular dystrophy who previously received an experimental gene therapy called fordadistrogene movaparvovec. Researchers will monitor them for 10 years to check for side effects and see if the treatment continues to help with movement. Th…
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:55 UTC
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Early trial of experimental cancer drug halted; data still under review
Disease control TerminatedThis early-phase study tested a new drug called PF-07284890, alone or with another drug (binimetinib), in 65 people with advanced cancers that have a specific genetic change (BRAF V600 mutation), including cancers that spread to the brain. The trial was terminated early, but rese…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:55 UTC
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New eczema drug abrocitinib tested in everyday use
Disease control TerminatedThis study looked at how well the drug abrocitinib works for adults with moderate to severe atopic dermatitis (eczema) in real-world clinics in Germany. Researchers tracked 112 participants for up to 12 months to see if their skin cleared or improved. The goal was to understand t…
Sponsor: Pfizer • Aim: Disease control
Last updated Jun 27, 2026 07:52 UTC
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Pfizer's new cancer combo shows early promise but trial halted
Disease control TerminatedThis early-stage trial tested a new drug, PF-07820435, alone or with another immunotherapy (sasanlimab) in 9 people with advanced solid tumors like lung, skin, or kidney cancer. The main goals were to check safety and find the right dose. The study was terminated early, so result…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 26, 2026 18:06 UTC
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Gene therapy trial for duchenne MD halted early – what we know
Disease control TerminatedThis early-stage trial tested a single infusion of gene therapy (PF-06939926) in 23 people with Duchenne muscular dystrophy, both those who could still walk and those who could not. The main goal was to check safety and tolerability, while also measuring dystrophin protein levels…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 26, 2026 17:12 UTC
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Experimental cocktail targets Hard-to-Treat lymphoma
Disease control TerminatedThis early-phase trial tested a combination of three drugs—maplirpacept, tafasitamab, and lenalidomide—in 6 people with diffuse large B-cell lymphoma (DLBCL) that had returned or not responded to prior treatment. Participants could not have a stem cell transplant or CAR-T therapy…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated Jun 26, 2026 13:39 UTC
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Heart failure drug trial halted early – what we know
Symptom relief TerminatedThis Phase 2 study tested ponsegromab, an experimental drug, against a placebo in 455 adults with heart failure. Participants received injections every four weeks for about nine months. The goal was to see if ponsegromab could improve symptoms and quality of life. The trial was t…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Symptom relief
Last updated Jun 27, 2026 11:03 UTC
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Tafamidis tablet vs capsule: which works better?
Knowledge-focused TerminatedThis early-stage study aimed to compare how a tablet form of tafamidis is absorbed in the body compared to the existing capsule form. It involved 24 healthy adults who took a single dose of each form under fed conditions. The study was terminated early, so results may be limited.
Phase: PHASE1 • Sponsor: Pfizer • Aim: Knowledge-focused
Last updated Jun 28, 2026 00:00 UTC
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Pfizer's mystery pill study halted before results
Knowledge-focused TerminatedThis early-stage study aimed to check the safety and how the body processes a new experimental drug (PF-07899895) in healthy adults aged 18-65. Participants received either the drug or a placebo in different dosing schedules. The study was terminated early, so no results are avai…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:00 UTC
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Updated pfizer Shot's Real-World power under review
Knowledge-focused TerminatedThis study aimed to measure how well the 2024-2025 Pfizer COVID-19 vaccine prevents symptomatic infection in people visiting CVS MinuteClinics. Researchers planned to compare vaccinated and unvaccinated patients across age groups and variant periods. However, the study was termin…
Sponsor: Pfizer • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:56 UTC
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Pfizer's Early-Stage drug study halted: what happened?
Knowledge-focused TerminatedThis early-stage study tested an experimental drug called PF-07314470 in 23 healthy adults to see if it was safe and how the body processes it. Participants received either the drug or a placebo by injection under the skin. The study was terminated early, so results are limited.
Phase: PHASE1 • Sponsor: Pfizer • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
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Real-World antibiotic study cut short: what we can learn
Knowledge-focused TerminatedThis study tracked how the antibiotic ceftazidime-avibactam is used in real hospital settings in China for serious infections like pneumonia and abdominal infections. Researchers planned to enroll 450 patients but the study was terminated early. The goal was to see how often the …
Sponsor: Pfizer • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:39 UTC