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M7824 in Subjects With HPV Associated Malignancies

Phase II Trial of M7824 in Subjects With HPV Associated Malignancies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03427411
Enrollment
57
Registered
2018-02-09
Start date
2018-02-27
Completion date
2022-12-31
Last updated
2023-03-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anal Cancer, Cervical Cancer, Human Papilloma Virus, Oropharyngeal Cancer, Vaginal or Penile Cancer

Keywords

TGFR1 pathway signaling and overexpression, PD-1 inhibitors, Manageable Safety Profile, Bifunctional Fusion Protein, Refractory/Recurrent HPV Associated Malignancies

Brief summary

Background: In the United States, each year there are more than 30,000 cases of human papillomavirus (HPV) associated cancers. Some of these cancers are often incurable and are not improved by standard therapies. Researchers want to see if a new drug M7824, which targets and blocks a pathway that prevents the immune system from effectively fighting the cancer can shrink tumors in people with some HPV cancers. Objectives: To see if the drug M7824 causes tumors to shrink. Eligibility: Adults age 18 and older who have a cancer associated with HPV infection. Design: Participants will be screened with medical history and physical exam. They will review their symptoms and how they perform normal activities. They will have body scans. They will give blood and urine samples. They will have a sample of their tumor tissue taken if one is not available. Participants will have an electrocardiogram to evaluate their heart. Then they will get the study drug through a thin tube in an arm vein. Participants will get the drug every 2 weeks for 26 times (1 year). This is 1 course. After the course, participants will be monitored but will not take the study drug. If their condition gets worse, they will start another course with the drug. This process can be repeated as many times as needed. Treatment will stop if the participant has bad side effects or the drug stops working. Throughout the study, participants will repeat some or all the screening tests. After participants stop taking the drug, they will have a follow-up visit and repeat some screening tests. They will get periodic follow-up phone calls.

Detailed description

Background: * Metastatic or refractory/recurrent human papillomavirus (HPV) associated malignancies (cervical, anal, oropharyngeal cancers etc.) are often incurable and poorly palliated by standard therapies. * Transforming growth factor receptor type 1 (TGF R1) pathway signaling and overexpression are significantly associated with HPV+ cancers. * Programmed cell death protein 1 (PD-1) inhibitors have produced a 12-20% response rate for these diseases * M7824 is a novel bifunctional fusion protein composed of monoclonal antibodies against human programmed death-ligand 1 (PD- L1) and soluble extracellular domain of human TGF- receptor II (TGF- RII), which functions as a TGF- trap. * Early data from a small cohort of patients with HPV associated malignancies in a phase I trial of M7824 has shown promising activity (NCT02517398). As of May 30, 2017, 4 of 9 patients (44%) with HPV associated malignancies have had preliminary evidence of clinical benefit including: * Patient with metastatic cervical cancer with a 25% reduction in her disease at 3 months * Patient with metastatic P16 positive (P16+) head and neck cancer with an unconfirmed partial response (PR) at 6 weeks * Patient with metastatic anal cancer with a durable PR ongoing 9 months after starting treatment * Patient with metastatic cervical cancer with a durable complete response (CR) ongoing 15 months after starting treatment. * Notably, the P16+ head and neck cancer patient with unconfirmed PR, anal cancer patient with durable PR and cervical cancer patient with durable CR all have HPV+ disease. * Immune related adverse events with M7824 in the phase I trial to date have been on par with other PD-1/PD-L1 inhibitors, suggesting a manageable safety profile. * EMD Serono has an ongoing expansion cohort evaluating M7824 in patients with head and neck squamous cell carcinoma (HNSCC) as well as in cervical cancer excluding neuroendocrine cervical cancer. Objective: -To determine the objective response rate (ORR) according to the Response Evaluation Criteria in Solid Tumors (RECIST 1.1) in subjects with recurrent or metastatic HPV associated malignancies. Eligibility: * Age greater than or equal to 18 years old * Subjects with cytologically or histologically confirmed locally advanced or metastatic HPV associated malignancies including: * Non-Neuroendocrine Cervical cancers * P16+ Oropharyngeal cancers * Anal cancers * Vulvar, vaginal, penile, squamous cell rectal and neuroendocrine cervical cancers * Other locally advanced or metastatic solid tumors (e.g. lung, esophagus) that are known HPV+ * Subjects must have measurable disease. Design: -This is a Phase II trial of M7824 in patients with recurrent or metastatic HPV associated malignancies. * Patients will be scheduled to receive 1,200 mg of M7824 intravenous (IV) every 2 weeks until off treatment criteria are met. * There will be six cohorts: (1) Patients with anal cancer whose disease is naive to checkpoint inhibition, (2) Patients with non-neuroendocrine cervical cancer naive to checkpoint inhibition, (3) Patients with P16+ oropharyngeal cancers naive to checkpoint inhibition, and (4) Patients with other rare HPV associated tumors (e.g. squamous cell rectal, vulvar, vaginal, penile cancer, neuroendocrine cervical) naive to checkpoint inhibition, (5) Patients with any HPV associated cancers whose disease is refractory to checkpoint inhibition. Patients who are determined to be HPV negative after enrolling will be taken off of their previously assigned cohort and reassigned to cohort 6 and their slot on their previously assigned cohort will be replaced. * Cohorts 1-5 of the trial will be conducted using a Simon two-stage phase II trial design.

Interventions

DRUGM7824

Flat dose of 1,200 mg of M7824 intravenous (IV) once every 2 weeks

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* INCLUSION CRITIERIA: * Age greater than or equal to 18 years. * Ability of subject to understand and the willingness to sign a written informed consent document. * Subjects with cytologically or histologically confirmed locally advanced or metastatic human papillomavirus (HPV) associated malignancies including: * Non-Neuroendocrine Cervical cancers * P16 positive (P16+) Oropharyngeal cancers * Anal cancers * Vulvar, vaginal, penile, squamous cell rectal and neuroendocrine cervical cancers * Other locally advanced or metastatic solid tumors (e.g. lung, esophagus) that are known HPV+ * Patients must have disease that is not amenable to potentially curative resection * Subjects must have measurable disease * Eastern Cooperative Oncology Group (ECOG) performance status less than or equal to 2 * Adequate hematologic function at screening, as follows: * Absolute neutrophil count (ANC) greater than or equal to 1 x 109/L * Hemoglobin greater than or equal to 9 g/dL * Platelets greater than or equal to 75,000/microliter. * Adequate renal and hepatic function at screening, as follows: * Serum creatinine less than or equal to 1.5 x upper limit of normal (ULN) OR creatinine clearance (CrCl) greater than or equal to 40 mL/min per institutional standard * Bilirubin less than or equal to 1.5 x ULN OR in subjects with Gilbert's syndrome, a total bilirubin less than or equal to 3.0 x ULN * Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) less than or equal to 2.5 x ULN, unless liver metastases are present, then values must be less than or equal to 3 x ULN) * The effects of M7824 on the developing human fetus are unknown; thus, women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation and up to 60 days after the last dose of the drug. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. * Patients serologically positive for human immunodeficiency virus (HIV), Hep B, Hep C are eligible as long as the viral loads are undetectable by quantitative polymerase chain reaction (PCR). HIV positive patients must have cluster of differentiation 4 (CD4) count greater than or equal to 300 cells per cubic millimeter at enrollment, be on stable antiretroviral therapy and have no reported opportunistic infections within 12 months prior to enrollment. *

Exclusion criteria

* Pregnant women are excluded from this study because this drug has not been tested in pregnant women and there is potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with M7824, breastfeeding should be discontinued if the mother is treated with M7824. * Patients with prior investigational drug, chemotherapy, immunotherapy or any prior radiotherapy (except for palliative bone directed therapy) within the past 28 days prior to the first drug administration except if the investigator has assessed that all residual treatment-related toxicities have resolved or are minimal and feel the patient is otherwise suitable for enrollment. Patients may continue adjuvant hormonal therapy in the setting of a definitively treated cancer (e.g., breast). * Major surgery within 28 days prior to the first drug administration (minimally invasive procedures such as diagnostic biopsies are permitted). * Known intolerance to or life-threatening side effects resulting from prior checkpoint inhibitor therapy. * Known active brain or central nervous system metastasis (less than 1 month out from definitive radiotherapy or surgery), seizures requiring anticonvulsant treatment (\<3 months) or clinically significant cerebrovascular accident (\<3 months). In order to be eligible patients must have repeat central nervous system (CNS) imaging at least two months after definitive treatment showing stable CNS disease. Patients with evidence of intra-tumoral or peritumoral hemorrhage on baseline imaging are also excluded unless the hemorrhage is grade less than or equal to 1 and has been shown to be stable on two consecutive imaging scans. * Active autoimmune disease that might deteriorate when receiving an immunostimulatory agent with exception of: * diabetes type I, eczema, vitiligo, alopecia, psoriasis, hypo- or hyperthyroid disease or other mild autoimmune disorders not requiring immunosuppressive treatment; * Subjects requiring hormone replacement with corticosteroids are eligible if the steroids are administered only for the purpose of hormonal replacement and at doses less than or equal to 10 mg of prednisone or equivalent per day; * Administration of steroids for other conditions through a route known to result in a minimal systemic exposure (topical, intranasal, intro-ocular, or inhalation) is acceptable; * Subjects on systemic intravenous or oral corticosteroid therapy with the exception of physiologic doses of corticosteroids (less than or equal to the equivalent of prednisone 10 mg/day) or other immunosuppressives such as azathioprine or cyclosporin A are excluded on the basis of potential immune suppression. For these subjects these excluded treatments must be discontinued at least 1 weeks prior to enrollment for recent short course use (less than or equal to 14 days) or discontinued at least 4 weeks prior to enrollment for long term use (\>14 days). In addition, the use of corticosteroids as premedication for contrast enhanced studies is allowed prior to enrollment and on study. * Subjects with a history of serious intercurrent chronic or acute illness, such as cardiac or pulmonary disease, hepatic disease, bleeding diathesis or recent (within 3 months) clinically significant bleeding events, or other illness considered by the Investigator as high risk for investigational drug treatment. * History of non-HPV associated second malignancy within 3 years of enrollment except localized malignancy which has been adequately treated or malignancy which does not require active systemic treatment (e.g., low risk chronic lymphocytic leukemia (CLL). * Known severe hypersensitivity reactions to monoclonal antibodies (Grade greater than or equal to 3 National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) v4.03) * Receipt of any organ transplantation requiring ongoing immunosuppression. * Patients with vulvar cancer originating from differentiated vulvar intraepithelial neoplasia (d-VIN), as opposed to vulvar intraepithelial neoplasia of usual type, are excluded. Vulvar squamous cell carcinoma originating from differentiated VIN (d-VIN) is HPV negative; however, rare cases of HPV positive d-VIN can occur. Patients are not excluded if their tumor has tested positive for HPV or there is no documentation of prior VIN type. * Patients with known HPV negative malignancies based on comprehensive laboratory testing (e.g. PCR based assay evaluating for HPV 16, 18, 31, 33, 35, 39, 51, 52, 56, 58, 59, 66, 68). Patients with HPV associated malignancies and unknown HPV status prior to enrollment are eligible.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants That Achieved an Objective Confirmed Complete or Partial Overall Tumor ResponseEvery six weeks for up to one yearThe percentage of participants that achieved an objective confirmed complete or partial overall tumor response was measured using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Complete response is disappearance of all target lesions. Partial response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Secondary

MeasureTime frameDescription
Progression-free Survival Time (PFS)Time from the date of first treatment to the date of disease progression or death, up to 12 monthsPFS is defined as the time from the date of first treatment to the date of disease progression or death. Progression was measured using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and is defined as at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions.
Percentage of Participants With Disease Control Who Achieved a Complete Response, Partial Response and Stable Disease Defined by the Response Evaluation Criteria in Solid Tumors (RECIST)Version 1.1 Lasting at Least 6 Months6 monthsThe percentage of participants with disease control who achieved a complete response, partial response and stable disease lasting at least 6 months was measured by the response evaluation criteria in solid tumors (RECIST)version 1.1. Complete response (CR) is disappearance of all target lesions. Partial response (PR) is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Stable disease (SD) is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD) (at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions).
Overall Survival (OS)Time from the date of first treatment to the date of death, up to 3 years.OS is defined as the time from the date of first treatment to the date of death and was measured by Kaplan-Meier analysis.
Number of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2median of 2 yearsResponse based on adequate similarity defined as P-value \> 0.2 with Fisher's exact test of results in cohorts 1 and 2 was compared with a two-sided Fishers exact test, and response was measured by the response evaluation criteria in solid tumors (RECIST)version 1.1. Complete response (CR) is disappearance of all target lesions. Partial response (PR) is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Progressive disease is at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions. Stable disease (SD) is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD).
Percentage of Participants That Were Hospitalized Because of Adverse Events Attributed to Disease ProgressionUp to 30 days from last treatmentAdverse events were assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned. Disease progression is at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions measured by the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
Duration of Response (Complete Response or Partial Response)Time from complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease (PD) is objectively documented, up to 12 monthsDuration of response is defined as the time from complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease (PD) is objectively documented. Response was measured by the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Complete response is disappearance of all target lesions. Partial response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Progression is at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions.
Number of Participants With Serious Grade ≥3 Adverse Events Considered Related to Study Treatment of M782428 days after treatmentAdverse events were assessed by the Common Terminology Criteria for Adverse Events version 5.0. A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned. Grade 1 is mild. Grade 2 is moderate, Grade 3 is severe, Grade 4 is life-threatening, and Grade 5 is death related to adverse event.

Other

MeasureTime frameDescription
Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)Date treatment consent signed to date off study, approximately 42 months and 28 days for the naïve group, and 40 months and 16 days for the refractory group.Here is the number of participants with serious and/or non-serious adverse events assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.

Countries

United States

Participant flow

Participants by arm

ArmCount
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 Weeks
Participants with anal cancer, non-neuroendocrine cervical cancer, P16 positive (P16+) oropharyngeal cancers, and other rare HPV associated tumors (e.g., squamous cell rectal, vulvar, vaginal, penile cancer, neuroendocrine cervical) naïve to checkpoint inhibition treated with M7824 at a flat dose of 1,200 mg intravenous (IV) once every 2 weeks until confirmed progressive disease, death, unacceptable toxicity, or study withdrawal.
30
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 Weeks
Participants with human papillomavirus (HPV) associated cancers refractory to checkpoint inhibition treated with M7824 at a flat dose of 1,200 mg intravenous (IV) once every 2 weeks until confirmed progressive disease, death, unacceptable toxicity, or study withdrawal.
27
Total57

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyScreen failure - platelets too low01

Baseline characteristics

CharacteristicParticipants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksTotalParticipants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 Weeks
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants14 Participants9 Participants
Age, Categorical
Between 18 and 65 years
25 Participants43 Participants18 Participants
Age, Continuous53.48 years
STANDARD_DEVIATION 13.49
55.96 years
STANDARD_DEVIATION 12.94
58.73 years
STANDARD_DEVIATION 11.94
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants4 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
28 Participants53 Participants25 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants2 Participants0 Participants
Race (NIH/OMB)
Black or African American
3 Participants4 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants2 Participants0 Participants
Race (NIH/OMB)
White
23 Participants49 Participants26 Participants
Region of Enrollment
United States
30 participants57 participants27 participants
Sex: Female, Male
Female
25 Participants36 Participants11 Participants
Sex: Female, Male
Male
5 Participants21 Participants16 Participants
Site of Primary Tumor
Anus
4 Participants10 Participants6 Participants
Site of Primary Tumor
Cervix
15 Participants21 Participants6 Participants
Site of Primary Tumor
Head-face or neck - Not Otherwise Specified
1 Participants2 Participants1 Participants
Site of Primary Tumor
Head/Neck
1 Participants3 Participants2 Participants
Site of Primary Tumor
Hypopharynx
0 Participants1 Participants1 Participants
Site of Primary Tumor
Oropharynx
0 Participants1 Participants1 Participants
Site of Primary Tumor
Penile
1 Participants1 Participants0 Participants
Site of Primary Tumor
Rectum
3 Participants4 Participants1 Participants
Site of Primary Tumor
Tongue
0 Participants1 Participants1 Participants
Site of Primary Tumor
Tongue, Base of Tongue
1 Participants4 Participants3 Participants
Site of Primary Tumor
Tonsil
1 Participants6 Participants5 Participants
Site of Primary Tumor
Vagina
1 Participants1 Participants0 Participants
Site of Primary Tumor
Vulva
2 Participants2 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
18 / 3022 / 26
other
Total, other adverse events
30 / 3026 / 26
serious
Total, serious adverse events
19 / 3021 / 26

Outcome results

Primary

Percentage of Participants That Achieved an Objective Confirmed Complete or Partial Overall Tumor Response

The percentage of participants that achieved an objective confirmed complete or partial overall tumor response was measured using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Complete response is disappearance of all target lesions. Partial response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Time frame: Every six weeks for up to one year

Population: 1/30 participants was not evaluable in the naïve group because the participant was determined to be HPV negative. 1/27 was not evaluable in the refractory group because one participant was a screen failure and was not treated.

ArmMeasureValue (NUMBER)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksPercentage of Participants That Achieved an Objective Confirmed Complete or Partial Overall Tumor Response31 percentage of participants
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksPercentage of Participants That Achieved an Objective Confirmed Complete or Partial Overall Tumor Response7.7 percentage of participants
Secondary

Duration of Response (Complete Response or Partial Response)

Duration of response is defined as the time from complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease (PD) is objectively documented. Response was measured by the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Complete response is disappearance of all target lesions. Partial response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Progression is at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions.

Time frame: Time from complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease (PD) is objectively documented, up to 12 months

ArmMeasureValue (MEDIAN)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksDuration of Response (Complete Response or Partial Response)NA Months
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksDuration of Response (Complete Response or Partial Response)4.0 Months
Secondary

Number of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2

Response based on adequate similarity defined as P-value \> 0.2 with Fisher's exact test of results in cohorts 1 and 2 was compared with a two-sided Fishers exact test, and response was measured by the response evaluation criteria in solid tumors (RECIST)version 1.1. Complete response (CR) is disappearance of all target lesions. Partial response (PR) is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Progressive disease is at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions. Stable disease (SD) is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD).

Time frame: median of 2 years

Population: Only cohorts 1 and 2 was evaluable for this outcome measure.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2Complete Response2 Participants
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2Partial Response7 Participants
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2Progressive Disease10 Participants
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2Stable Disease9 Participants
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Checkpoint Inhibitor Naive Participants With Response Based on Adequate Similarity (Defined as P-value > 0.2 With Fisher's Exact Test) of Results in Cohorts 1 and 2Not Evaluable1 Participants
p-value: 0.6143Fisher Exact
Secondary

Number of Participants With Serious Grade ≥3 Adverse Events Considered Related to Study Treatment of M7824

Adverse events were assessed by the Common Terminology Criteria for Adverse Events version 5.0. A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned. Grade 1 is mild. Grade 2 is moderate, Grade 3 is severe, Grade 4 is life-threatening, and Grade 5 is death related to adverse event.

Time frame: 28 days after treatment

Population: One participant enrolled in the refractory group was a screen failure and was not treated.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Participants With Serious Grade ≥3 Adverse Events Considered Related to Study Treatment of M78246 Participants
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Participants With Serious Grade ≥3 Adverse Events Considered Related to Study Treatment of M78244 Participants
Secondary

Overall Survival (OS)

OS is defined as the time from the date of first treatment to the date of death and was measured by Kaplan-Meier analysis.

Time frame: Time from the date of first treatment to the date of death, up to 3 years.

Population: 1/30 participants was not evaluable in the naïve group because the patient was determined to be HPV negative, and 1/27 was not evaluable in the refractory group because one participant was a screen failure and was not treated.

ArmMeasureValue (MEDIAN)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksOverall Survival (OS)19.2 Months
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksOverall Survival (OS)4.4 Months
Secondary

Percentage of Participants That Were Hospitalized Because of Adverse Events Attributed to Disease Progression

Adverse events were assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned. Disease progression is at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions measured by the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.

Time frame: Up to 30 days from last treatment

Population: One participant enrolled in the refractory group was a screen failure and was not treated.

ArmMeasureValue (NUMBER)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksPercentage of Participants That Were Hospitalized Because of Adverse Events Attributed to Disease Progression37.9 percentage of participants
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksPercentage of Participants That Were Hospitalized Because of Adverse Events Attributed to Disease Progression69.2 percentage of participants
Secondary

Percentage of Participants With Disease Control Who Achieved a Complete Response, Partial Response and Stable Disease Defined by the Response Evaluation Criteria in Solid Tumors (RECIST)Version 1.1 Lasting at Least 6 Months

The percentage of participants with disease control who achieved a complete response, partial response and stable disease lasting at least 6 months was measured by the response evaluation criteria in solid tumors (RECIST)version 1.1. Complete response (CR) is disappearance of all target lesions. Partial response (PR) is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Stable disease (SD) is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD) (at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions).

Time frame: 6 months

Population: 1/30 participants was not evaluable in the naïve group because they were determined to be HPV negative, and 1/27 was not evaluable in the refractory group because one participant was a screen failure.

ArmMeasureValue (NUMBER)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksPercentage of Participants With Disease Control Who Achieved a Complete Response, Partial Response and Stable Disease Defined by the Response Evaluation Criteria in Solid Tumors (RECIST)Version 1.1 Lasting at Least 6 Months62.1 percentage of participants
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksPercentage of Participants With Disease Control Who Achieved a Complete Response, Partial Response and Stable Disease Defined by the Response Evaluation Criteria in Solid Tumors (RECIST)Version 1.1 Lasting at Least 6 Months19.2 percentage of participants
Secondary

Progression-free Survival Time (PFS)

PFS is defined as the time from the date of first treatment to the date of disease progression or death. Progression was measured using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and is defined as at least a 20% increase in the sum of diameters of target lesions, or appearance of one or more new lesions.

Time frame: Time from the date of first treatment to the date of disease progression or death, up to 12 months

Population: 1/30 participants was not evaluable in the naïve group because they were found to be HPV negative and 1/27 was not evaluable in the refractory group because one participant was a screen failure.

ArmMeasureValue (MEDIAN)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksProgression-free Survival Time (PFS)3.5 Months
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksProgression-free Survival Time (PFS)1.4 Months
Other Pre-specified

Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)

Here is the number of participants with serious and/or non-serious adverse events assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.

Time frame: Date treatment consent signed to date off study, approximately 42 months and 28 days for the naïve group, and 40 months and 16 days for the refractory group.

Population: One enrolled participant was a screen failure and was not treated.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Naïve to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)30 Participants
Participants Refractory to Checkpoint Inhibition - M7824 1,200 mg Intravenous Once Every 2 WeeksNumber of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v4.0)26 Participants

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026