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NCT04432597 · ClinicalTrials.gov record · last posted 2026-08-18

HPV Vaccine PRGN-2009 Alone or in Combination With Anti-PDL1/TGF-Beta Trap (M7824) in Subjects With HPV Associated Cancers

StatusCompleted
PhasePhase 1/2
Started2020-08-11
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from the ClinicalTrials.gov record
Background: For some cancers associated with human papillomavirus (HPV), standard treatments are not helpful. Researchers want to see if a vaccine for HPV combined with a drug called M7824 (MSB0011359C) has a better effect on these cancers than when they work alone. Objective: To find a safe dose of HPV vaccine alone or combined with M7824. Also, to test if either HPV vaccine alone or combined with M7824 causes a better immune response. Eligibility: People ages 18 and older with locally advanced or metastatic HPV associated cancer (Phase I) or stage II or III p16-positive oropharyngeal cancer (Phase II) Design: Participants will be screened with: Medical history Physical exam Blood, urine, and heart tests Possible photos of skin lesions Computed tomography (CT), magnetic resonance imaging (MRI), or nuclear bone scan: Participants will lie in a machine that takes pictures of the body. For the CT scan, they may have a contrast agent injected into a vein. Participants may have up to 2 tumor biopsies. For participants in Phase II, this may be performed with a thin tube placed through the nose into the airway. Participants will receive the HPV vaccine alone or with M7824. For participants on the Phase II, they will receive two doses of HPV vaccine under the skin either alone or with M7824 as an infusion spaced two weeks apart. This will be done prior to their planned chemoradiation or surgery. For participants on the Phase I, they will get the HPV vaccine injected under the skin 2 to 3 times in the first month. Then they will have a booster every 4 weeks. They will receive M7824 as an infusion into a vein every 2 weeks. Treatment will last up to 1 year. After they stop treatment, participants will have a visit within 4 weeks. They will then be contacted for long-term follow-up every year, for the rest of their lives. ...

Protocol amendment history 4 changes detected by DataLookout

2026-08-19
notable
Trial completed
2026-08-19
critical
Primary endpoint(s) modified
WasLevel increase in CD3+ tumor infiltrating T cells post-treatment compared to pre-treatment, Safety and recommended phase II dose of PRGN-2009
NowPhase I: Recommended Phase II Dose of PRGN-2009, Phase I: Safety - Number of Treatment-related Serious Adverse Events (AE) of Grades 1, 2, 3, 4 and/or 5 Along With the AE Term, Phase II: Percentage of Participants That Had a 2-fold Increase of Cluster of Differentiation 3 (CD3+) Tumor Infiltrating T Cells in Biopsies Performed Post-treatment Compared to Pre-treatment
2026-08-19
minor
Completion moved earlier: 2026-05-29 → 2026-03-31
2026-05-19
minor
Completion pushed: 2026-03-31 → 2026-05-29
Trial Details
NCT Number NCT04432597
Lead Sponsor National Cancer Institute (NCI)
Conditions HPV Positive Cancer, Vulvar, Vaginal, Penile, Rectal Cancer, Anal Cancer, Oropharyngeal Cancer, Cervical Cancer
Enrollment 39 participants
Start Date 2020-08-11
Primary Completion 2022-11-22 (estimated)
Study Completion 2026-03-31 (estimated)
Updated on ClinicalTrials.gov 2026-08-18