Pfizer
Clinical trials sponsored by Pfizer, explained in plain language.
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Pfizer's new shingles mRNA vaccine trial ends early
⭐️ VACCINE ⭐️ TerminatedThis study tested a new mRNA vaccine to prevent shingles in healthy adults aged 50 to 85. Researchers checked for side effects and how well the vaccine triggered an immune response. The trial was stopped early, so results are limited.
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: ⭐️ VACCINE ⭐️
Last updated May 26, 2026 02:48 UTC
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Real-World check: does the new pfizer shot still stop COVID?
⭐️ VACCINE ⭐️ TerminatedThis study aimed to measure how effective the 2024-2025 Pfizer COVID-19 vaccine is at preventing symptomatic infection in real-world settings. Researchers planned to compare vaccinated and unvaccinated people who got tested for COVID-19 at CVS MinuteClinics. The study was termina…
Sponsor: Pfizer • Aim: ⭐️ VACCINE ⭐️
Last updated May 19, 2026 11:48 UTC
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New RSV drug trial for kids halted early
Disease control TerminatedThis study tested a new medicine called sisunatovir in infants and children up to 5 years old who had a lung infection caused by RSV. The goal was to check the medicine's safety and how it moves through the body, to help decide the right dose for future studies. The study was sto…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:15 UTC
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RSV pill study halted: did it work for High-Risk adults?
Disease control TerminatedThis study tested an oral drug called sisunatovir for adults with RSV who were not in the hospital but had a high risk of getting very sick. Participants took either the drug or a placebo for 5 days. The goal was to see if the drug could prevent hospital stays or death. The study…
Phase: PHASE2, PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:14 UTC
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New cancer drug trial halted early after testing in just 10 patients
Disease control TerminatedThis early-phase study tested a new drug (PF-07826390) alone or with another drug (sasanlimab) in 10 people with advanced solid tumors like lung, colon, or kidney cancer. The goal was to check safety and find the right dose. The study was terminated early, so results are limited.
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:13 UTC
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Lupus skin drug study halted early – what we know
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 it could reduce skin symptoms and inflammation. The study was stopped early and only 8 people took part, so results are limited.
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:13 UTC
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New combo tackles tough melanoma after first treatment fails
Disease control TerminatedThis study looked at two different drug combinations for people with advanced melanoma that has a specific BRAF gene change and has gotten worse after prior treatment. One group received a targeted therapy pill (encorafenib and binimetinib) plus an immunotherapy infusion (pembrol…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:13 UTC
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Sickle cell drug oxbryta under Real-World watch
Disease control TerminatedThis study followed 265 people with sickle cell disease who were taking the drug Oxbryta (voxelotor) to see how it worked in everyday life. Researchers measured changes in blood counts, organ function, and complications like pain crises over up to 5 years. The goal was to better …
Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:11 UTC
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Sickle cell drug safety study ends early
Disease control TerminatedThis study was designed to check the long-term safety of the drug GBT021601 (osivelotor) in people with sickle cell disease who had already taken it in a previous study. It included 47 participants aged 6 months and older. The study was terminated early, so results are limited.
Phase: PHASE2, PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:11 UTC
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Ulcerative colitis drug study cut short, but data still valuable
Disease control TerminatedThis study aimed to see how well the drug tofacitinib works for people with moderate to severe ulcerative colitis in everyday medical practice in Switzerland. It included 18 adults who were already prescribed the drug. The study was stopped early, but researchers still collected …
Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:11 UTC
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Promising myeloma combo study halted early
Disease control TerminatedThis study tested a new drug, elranatamab, combined with other cancer treatments for people with multiple myeloma that had returned or stopped responding to prior therapies. The goal was to find the best dose and see if the combination helped control the disease. The study was te…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:09 UTC
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Sickle cell drug voxelotor safety checked in extension study
Disease control TerminatedThis study looked at the long-term safety of the drug voxelotor in 179 people with sickle cell disease who had already taken it in earlier studies. Participants continued taking the drug to monitor side effects and complications. The study was terminated early, but it provided in…
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:08 UTC
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Ulcerative colitis pill trial ends early: what happened?
Disease control TerminatedThis study tested an experimental oral drug, PF-07054894, in 44 adults with mild to severe ulcerative colitis. The goal was to see if it could safely reduce inflammation and improve symptoms. The trial was terminated early, so results are limited. Participants had active disease …
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:07 UTC
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Real-World eczema drug study shows promise, but no cure yet
Disease control TerminatedThis study looked at how well the medication abrocitinib works for adults with moderate to severe atopic dermatitis (eczema) in everyday medical practice. About 112 participants in Germany were followed for up to 12 months after starting the drug. The goal was to see how many ach…
Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:07 UTC
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New drug combo tested for advanced cancers: hope for lymphoma and solid tumors
Disease control TerminatedThis early-phase study tested a new experimental drug, PF-08046032, alone or combined with another drug (sasanlimab) in 6 adults with advanced lymphomas or solid tumors that had spread or stopped responding to standard treatments. The main goals were to check safety and find the …
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:06 UTC
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Gene therapy watch: 10-Year safety check for duchenne patients
Disease control TerminatedThis study checks the long-term safety and effects of an experimental gene therapy called fordadistrogene movaparvovec in people with Duchenne muscular dystrophy who received it in a previous Pfizer study. Participants will be followed for up to 10 years with annual visits. The g…
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 26, 2026 03:04 UTC
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Sickle cell drug trial in kids halted midway
Disease control TerminatedThis study tested a drug called voxelotor in children aged 2 to 15 with sickle cell disease who had slightly abnormal blood flow in their brains. The goal was to see if the drug could improve that blood flow and reduce stroke risk. The trial was stopped early, so results are limi…
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 14:02 UTC
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Experimental cancer combo trial halted early
Disease control TerminatedThis early-stage study tested a new drug, PF-07265028, alone or with another drug (sasanlimab) in people with advanced solid tumors like lung, stomach, and head & neck cancers. The goal was to find the safest dose and see if the drugs shrink tumors. The study was terminated early…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 14:02 UTC
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New drug combo for tough lymphoma shows early promise but study halted
Disease control TerminatedThis study looked at a combination of three medicines (maplirpacept, tafasitamab, and lenalidomide) for people with diffuse large B-cell lymphoma that had come back or didn't respond to prior treatment. Participants were not able or willing to have a stem cell transplant or CAR-T…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 14:01 UTC
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Pfizer's new cancer drug shows early promise in small trial
Disease control TerminatedThis early-stage study tested a new drug, PF-07820435, alone or with another drug (sasanlimab), in 9 people with advanced solid tumors like lung, skin, and kidney cancers. The main goal was to check safety and find the right dose. The study was stopped early, so results are limit…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 13:53 UTC
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Experimental combo for aggressive lymphoma shows early promise but study halted
Disease control TerminatedThis study tested a combination of two experimental drugs (maplirpacept and glofitamab) for people with a type of blood cancer called diffuse large B-cell lymphoma that had come back or not responded to prior treatments. Participants had already tried at least two other treatment…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 13:53 UTC
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Pfizer cancer drug trial halted early after only 8 patients
Disease control TerminatedThis early-stage study tested a new drug called PF-08046037, given alone or with another drug (sasanlimab), in people with advanced lung, head and neck, melanoma, or pancreatic cancers. The goal was to check safety and how the body processes the drug. Only 8 people took part befo…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 13:52 UTC
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Lung cancer combo trial halted early – what we know
Disease control TerminatedThis study tested sasanlimab, an immunotherapy drug, combined with other targeted treatments for people with advanced non-small cell lung cancer (NSCLC). The trial was stopped early, but some participants in one group completed treatment. The goal was to see if the combinations w…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 13:52 UTC
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New cancer drug shows early promise but study halted
Disease control TerminatedThis early-phase study tested a new drug, PF-07284890, alone or with another drug, in people with advanced solid tumors (like melanoma or lung cancer) that have a specific BRAF V600 gene change, including those that spread to the brain. The main goals were to check safety, how th…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 22, 2026 13:50 UTC
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New drug trial for advanced cancers ends early
Disease control TerminatedThis 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. The goal was to check the drug's safety and side effects. The study was stopped early, so results are limited.
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 20, 2026 12:08 UTC
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Experimental cancer drug trial halted early: what we know
Disease control TerminatedThis early-stage study tested an experimental drug (PF-06873600) taken by mouth, alone or with hormone therapy, in people with advanced breast, ovarian, or related cancers. The trial aimed to check safety and how well the drug worked, but it was stopped early. About 155 people we…
Phase: PHASE1, PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 20, 2026 11:56 UTC
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Smart device may help arthritis patients stay on track with injections
Disease control TerminatedThis study in Colombia looked at whether a smart injection device (Smartclic) helps people with rheumatoid arthritis stick to their etanercept medication. Researchers reviewed medical records of 60 patients over 40 weeks to track how often they used the device and how their sympt…
Sponsor: Pfizer • Aim: Disease control
Last updated May 19, 2026 11:47 UTC
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Gene therapy trial for duchenne MD halted early – what we know
Disease control TerminatedThis study tested a gene therapy called fordadistrogene movaparvovec in 10 boys with early-stage Duchenne muscular dystrophy. The goal was to see if it was safe and could help their muscles produce a shortened version of the missing protein, dystrophin. The trial was terminated e…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 18, 2026 12:13 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 happen. The goal is to see if the drug remains safe over time.
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 18, 2026 12:07 UTC
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Sickle cell drug voxelotor safety check 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 studies. The main goal was to track any side effects. The study was stopped early, but the results help doctors understand how safe voxelotor…
Phase: PHASE3 • Sponsor: Pfizer • Aim: Disease control
Last updated May 18, 2026 12:00 UTC
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New cancer drug combo tested in early trial
Disease control TerminatedThis early-phase study tested a new medicine called PF-07921585, given alone or with another drug (sasanlimab), in adults with advanced solid tumors like lung, bladder, kidney, skin, head and neck, or colorectal cancer. The goal was to check safety and how the body handles the dr…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 18, 2026 11:58 UTC
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Children's heartburn study halted: pantoprazole doses compared
Disease control TerminatedThis study looked at whether a full or half dose of the medicine pantoprazole could keep the esophagus healed in children aged 1 to 17 who had healed from a type of severe heartburn called erosive esophagitis. The study planned to follow 43 children for 24 weeks, but it was stopp…
Phase: PHASE2 • Sponsor: Pfizer • Aim: Disease control
Last updated May 12, 2026 13:41 UTC
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Gene therapy for duchenne MD shows promise but study halted early
Disease control TerminatedThis study tested a single dose of a gene therapy called PF-06939926 in 23 people with Duchenne muscular dystrophy (DMD), both those who could still walk and those who could not. The main goal was to check safety and side effects over one year. The trial was stopped early, but re…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Disease control
Last updated May 07, 2026 18:43 UTC
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Pfizer's weight loss drug for seniors hits early snag
Symptom relief TerminatedThis study tested an experimental drug, PF-07258669, to help older adults (60-90 years) who are at risk of malnutrition or losing weight without trying. The goal was to see if the drug is safe and how it affects the body. The trial was stopped early after enrolling only 7 partici…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Symptom relief
Last updated May 18, 2026 12:09 UTC
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Heart failure drug trial halted: did ponsegromab ease symptoms?
Symptom relief TerminatedThis study tested whether a medicine called Ponsegromab could improve symptoms and quality of life in adults with heart failure. Participants received either the drug or a placebo as a shot every four weeks for about 9 months. The trial was stopped early, so results are limited. …
Phase: PHASE2 • Sponsor: Pfizer • Aim: Symptom relief
Last updated May 18, 2026 12:01 UTC
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Real-world study of antibiotic use in chinese hospitals terminated early
Knowledge-focused TerminatedThis study aimed to observe how the antibiotic ceftazidime-avibactam is actually used in everyday hospital practice in China. Researchers planned to follow about 450 adult patients with serious infections like pneumonia or abdominal infections. The study was terminated early, so …
Sponsor: Pfizer • Aim: Knowledge-focused
Last updated May 26, 2026 03:06 UTC
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Pfizer's Early-Stage drug study halted: what happened?
Knowledge-focused TerminatedThis early-stage study tested an experimental drug (PF-07899895) in 37 healthy adults to see if it was safe and how the body processes it. Participants received either the drug or a placebo in different dosing schedules. The study was terminated early, so results are limited.
Phase: PHASE1 • Sponsor: Pfizer • Aim: Knowledge-focused
Last updated May 26, 2026 02:48 UTC
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Pfizer tests experimental drug in healthy people – study halted early
Knowledge-focused TerminatedThis early-stage study tested whether the experimental drug PF-07314470 is safe in healthy adults and how the body absorbs and removes it. The trial was stopped early by the sponsor. It involved 23 healthy volunteers aged 18 to 55 who received either the drug or a placebo by inje…
Phase: PHASE1 • Sponsor: Pfizer • Aim: Knowledge-focused
Last updated May 22, 2026 14:05 UTC