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A Dose Escalation Study Of PF-06801591 In Melanoma, Head And Neck Cancer (SCCHN), Ovarian, Sarcoma, Non-Small Cell Lung Cancer, Urothelial Carcinoma or Other Solid Tumors

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ClinicalTrials.gov Identifier: NCT02573259
Recruitment Status : Completed
First Posted : October 9, 2015
Results First Posted : December 13, 2021
Last Update Posted : December 13, 2021
Sponsor:
Information provided by (Responsible Party):
Pfizer

Brief Summary:
Protocol B8011001 is a Phase 1, open-label, multi-center, multiple-dose, dose escalation and expansion, safety, pharmacokinetics (PK), and pharmacodynamics (PD) study of PF-06801591 in previously treated adult patients with locally advanced or metastatic melanoma, SCCHN, ovarian carcinoma, sarcoma, NSCLC, urothelial carcinoma or other solid tumors. This is a 2 Part study whereby the safety and tolerability of increasing dose levels of intravenous (IV) or subcutaneous (SC) PF-06801591 was assessed in Part 1. Part 2 expansion is designed to further evaluate the safety and efficacy of SC PF-06801591 in patients with NSCLC or urothelial carcinoma as well as confirm the recommended Phase 2 dose.

Condition or disease Intervention/treatment Phase
Part 1 MELANOMA SCCHN OVCA SARCOMA OTHER SOLID TUMORS Part 1 and 2 NSCLC UROTHELIAL CARCINOMA Drug: PF-06801591 Phase 1

Detailed Description:

Protocol B8011001 is a Phase 1, two part, open-label, multi center, multiple-dose, safety, efficacy, PK, and PD study of PF-06801591 administered intravenously (IV) or subcutaneous (SC) in previously treated adult patients with locally advanced or metastatic melanoma, squamous cell carcinoma head and neck (SCCHN), ovarian carcinoma, sarcoma, non-small cell lung carcinoma (NSCLC), urothelial carcinoma or other solid tumors.

The first part of the study, Part 1 dose escalation, was designed to assess the safety and tolerability of increasing dose levels of IV or SC administered PF-06801591 to establish the maximum tolerated dose (MTD) using a modified Toxicity Probability Interval (mTPI) design. Part 2 expansion is designed to further evaluate the safety and efficacy of 300 mg of PF-06801591 administered SC once every 4 weeks in patients with NSCLC or urothelial carcinoma as well as confirm the recommended Phase 2 dose (RP2D). Part 1 enrollment has completed, enrollment will only be allowed for Part 2.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 147 participants
Allocation: Non-Randomized
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A PHASE 1, OPEN-LABEL, DOSE ESCALATION AND EXPANSION STUDY OF PF-06801591 IN PATIENTS WITH LOCALLY ADVANCED OR METASTATIC MELANOMA, SQUAMOUS CELL HEAD AND NECK CANCER, OVARIAN CANCER, SARCOMA, NON-SMALL CELL LUNG CANCER, UROTHELIAL CARCINOMA OR OTHER SOLID TUMORS.
Actual Study Start Date : February 10, 2016
Actual Primary Completion Date : November 19, 2020
Actual Study Completion Date : November 19, 2020


Arm Intervention/treatment
Experimental: Arm 1 PF-06801591
0.5 mg/kg IV every 21 days (Part 1)
Drug: PF-06801591
IV every 21 days (Part 1)

Experimental: Arm 2 PF-06801591
1.0 mg/kg IV every 21 days (Part 1)
Drug: PF-06801591
IV every 21 days (Part 1)

Experimental: Arm 3 PF-06801591
3.0 mg/kg IV every 21 days (Part 1)
Drug: PF-06801591
IV every 21 days (Part 1)

Experimental: Arm 4 PF-06801591
10 mg/kg IV every 21 days (Part 1)
Drug: PF-06801591
IV every 21 days (Part 1)

Experimental: Arm 5 PF-06801591
300 mg SC every 28 days (Part 1 and 2)
Drug: PF-06801591
300 mg SC every 28 days (Part 1 and 2)




Primary Outcome Measures :
  1. Percentage of Participants With Dose-Limiting Toxicities (DLT) - Part 1 [ Time Frame: Cycle 1 in Part 1 (21 days for IV administration of PF-06801591; 28 days for SC administration of PF-06801591) ]
    DLT was defined as any of the following drug-related adverse events (AEs) occurring during the first cycle (21 days for IV dosing, 28 days for SC dosing) in Part 1: Grade 5 AE; Grade 4 neutropenia lasting >5 days from initiation of granulocyte colony stimulating factor; Grade 4 thrombocytopenia with bleeding; Platelet transfusion requirement or a platelet count <10,000/uL; Grade 4 non-hematologic AE; Grade 3 AE lasting >7 days despite optimal supportive care; Grade 3 central nervous system AE regardless of duration; met criteria for drug induced liver injury. Severity of AEs were graded according to Common Terminology Criteria for Adverse Events (CTCAE) v4.03. Grade 3 = severe AE. Grade 4 = life-threatening consequences; urgent intervention indicated. Grade 5 = death related to AE.

  2. Number of Participants With All-Causality Treatment-Emergent Adverse Events (AEs) - Part 1 and Part 2 [ Time Frame: Baseline up to 28 days after last dose of study treatment (maximum of 1634 days) ]
    AE = any untoward medical occurrence in participant who received study treatment without regard to possibility of causal relationship. Treatment-emergent events = between first dose of study treatment and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. A serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Grades of severity were defined by CTCAE v4.03. Grades of severity were defined by CTCAE v4.03. Grade 3 = severe AE. Grade 4 = life-threatening consequences; urgent intervention indicated. Grade 5 = death related to AE.

  3. Number of Participants With Treatment-Related Treatment-Emergent Adverse Events (AEs) - Part 1 and Part 2 [ Time Frame: Baseline up to 28 days after last dose of study treatment (maximum of 1634 days) ]
    Treatment-related AE was any untoward medical occurrence attributed to study treatment in a participant who received study treatment. Treatment-emergent events = between first dose of study treatment and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-related AEs and SAEs were determined by the investigator. Grades of severity were defined by CTCAE v4.03. Grades of severity were defined by CTCAE v4.03. Grade 3 = severe AE. Grade 4 = life-threatening consequences; urgent intervention indicated. Grade 5 = death related to AE.

  4. Number of Participants With Laboratory Test Abnormalities - Part 1 and Part 2 [ Time Frame: Baseline up to 28 days after last dose of study treatment (maximum of 1634 days) ]
    Following parameters were analyzed for laboratory examination: hematology (anemia, hemoglobin increased, lymphocyte count decreased, lymphocyte count increased, neutrophil count decreased, platelet count decreased, white blood cell decreased); chemistries (increase of alanine aminotransferase, alkaline phosphatase, aspartate aminotransferase, blood bilirubin, CPK, creatinine, gamma-glutamyl transferase [GGT], lipase, and serum amylase); urinalysis (proteinuria); coagulation (activated partial thromboplastin time prolonged, international normalized ratio [INR] increased). Grades of severity were defined by CTCAE v4.03. Grade 0 = No Change from normal or reference range (this grade is not included in the CTCAE v4.03 document but may used in certain circumstances). Grade 1 = mild adverse event (AE). Grade 2 = moderate AE; Grade 3 = severe AE. Grade 4 = life-threatening consequences; urgent intervention indicated. Grade 5 = death related to AE.

  5. Objective Response Rate (ORR) Based on RECIST Version 1.1 - Part 2 [ Time Frame: Baseline up to end of treatment in Part 2 (maximum of 851 days) ]
    ORR was defined as percentage of participants with confirmed objective response (OR) of complete response (CR) and partial response (PR) based on RECIST version 1.1. CR was defined as complete disappearance of all target lesions with the exception of nodal disease. All target nodes must decrease to normal size (short axis < 10 mm). All target lesions must be assessed. PR was defined as >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. The short diameter was used in the sum for target nodes, while the longest diameter was used in the sum for all other target lesions. All target lesions must be assessed.

  6. Objective Response Rate (ORR) Based on Immune Related RECIST (irRECIST) - Part 2 [ Time Frame: Baseline up to end of treatment in Part 2 (maximum of 851 days) ]
    ORR was defined as percentage of participants with objective response (OR) of complete response (CR) and partial response (PR) based on irRECIST. CR was defined as complete disappearance of all target lesions with the exception of nodal disease. All target nodes must decrease to normal size (short axis < 10 mm). All target lesions must be assessed. PR was defined as >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. The short diameter was used in the sum for target nodes, while the longest diameter was used in the sum for all other target lesions. All target lesions must be assessed.


Secondary Outcome Measures :
  1. Maximum Plasma Concentration (Cmax) of PF-06801591 - Part 1 [ Time Frame: Pre-dose, 1 and 24 hours post dose on Cycle 1 Day 1, and pre-dose and 1 hour post dose on Cycle 4 Day 1 in Part 1 ]
    Cmax was the maximum concentration after dose administration observed directly from the data.

  2. AUClast of PF-06801591 in Part 1. [ Time Frame: Pre-dose, 1 and 24 hours post dose on Cycle 1 Day 1 in Part 1 ]
    Area Under the Concentration Versus Time Curve (AUC) From Time Zero to the Last Quantifiable Time Point Prior to the Next Dose (AUClast) of PF-06801591 - Part 1

  3. Clearance (CL) of PF-06801591 - Part 1 [ Time Frame: Pre-dose, 1 and 24 hours post dose on Cycle 1 Day 1, and pre-dose and 1 hour post dose on Cycle 4 Day 1 in Part 1 ]
    CL for IV dosing. CL was calculated by dose / AUCtau for Cycles 1 and 4 IV dosing. AUCtau was defined as area under the serum concentration time profile from time zero to time tau, the dosing interval, where tau = 504 hours for every 3 weeks (Q3W) IV dosing reporting arm.

  4. Volume of Distribution at Steady State (Vss) of PF-06801591 - Part 1 [ Time Frame: Pre-dose, 1 and 24 hours post dose on Cycle 1 Day 1, and pre-dose and 1 hour post dose on Cycle 4 Day 1 in Part 1 ]
    Steady state volume of distribution of PF-0680159 for IV dosing. Vss was calculated by CL*MRT. CL was the clearance for IV dosing. MRT was the mean residence time calculated for a single IV dose as AUMCinf/AUCinf - (DOF/2). AUMCinf was the area under the moment curve from time 0 extrapolated to infinity. DOF was the duration of infusion. AUCinf was the area under the serum concentration time profile from time 0 extrapolated to infinity.

  5. Accumulation Ratio (Rac) of PF-06801591 - Part 1 [ Time Frame: Pre-dose and 1 hour post dose on Day 1 of Cycles 1 and 4 in Part 1 ]
    Rac was calculated by (Cycle 4 AUCtau) / (Cycle 1 AUCtau). AUCtau was Area under the serum concentration time profile from time zero to time tau, the dosing interval, where tau = 504 hours for Q3W IV dosing and tau = 672 hours for every 4 weeks (Q4W) SC dosing.

  6. Terminal Elimination Half-Life (t1/2) of PF-06801591 - Part 1 [ Time Frame: Pre-dose and 1 hour post dose on Day 1 of Cycles 1 and 4 in Part 1 ]
    t1/2 was calculated by Loge(2)/kel. kel was the terminal phase rate constant calculated by a linear regression of the log linear concentration time curve. Only those data points judged to describe the terminal log linear decline were used in the regression.

  7. Number of Participants With Anti-Drug Antibody (ADA) Against PF-06801591 - Part 1 and Part 2 [ Time Frame: Baseline up to end of treatment (maximum of 851 days) ]
    Number of participants with ADA positive against PF-06801591 after IV and SC dosing - Part 1 and Part 2. A participant was ADA positive if (1) baseline titer was missing or negative and participant had ≥ 1 post-treatment positive titer (treatment-induced), or (2) positive titer at baseline and had a ≥ 0.602 in titer from baseline in ≥ 1 post-treatment sample (treatment-boosted). Participants who were ADA positive at baseline but did not become boosted post-treatment were considered as ADA negative.

  8. Number of Participants With Neutralizing Antibodies (NAb) Positive Against PF-06801591 - Part 1 and Part 2 [ Time Frame: Baseline up to end of treatment (maximum of 851 days) ]
    Number of participants with NAb positive against PF-06801591 after IV and SC dosing - Part 1 and Part 2. A participant was NAb positive if (1) baseline titer was missing or negative and participant had ≥ 1 post-treatment positive titer (treatment-induced), or (2) positive titer at baseline and had a ≥ 0.602 in titer from baseline in ≥ 1 post-treatment sample (treatment-boosted). Participants who were NAb positive at baseline but did not become boosted post-treatment were considered as NAb negative.

  9. Percentage of Baseline PD-1 Receptor Occupancy (RO) by PF-06801591 - Part 1 [ Time Frame: Baseline, Days 1, 8, 15, 21 of Cycle 1, Day 1 of Cycles 2, 3, 5, Days 1, 15, 21 of Cycle 4, and end of treatment (EOT) in Part 1 (cycle = 21 days for IV dosing; cycle = 28 days for SC dosing) ]
    PD-1 RO by sasanlimab was measured by the reduction of free receptor on the surface of CD8+ effector cells (CD3+, CD4-, CD8+, CD45RA+, CCR7-, CD279+) and CD8+ effector memory cells (CD3+, CD4-, CD8+, CD45RA-, CCR7-, CD279+) presented in pre- and postdose whole blood samples by flow cytometry. Percentage of baseline (ie, normalized change from baseline) PD-1 RO were calculated as [(percentage of cells at Cycle X Day X)/(percentage of cells at baseline)]*100, and are reported for this outcome measure. Baseline was defined as the most recent non-missing value prior to dosing.

  10. Number of Participants Achieving Objective Response (OR) Based on RECIST Version 1.1 - Part 1 [ Time Frame: Baseline up to end of treatment in Part 1 (maximum of 1606 days) ]
    Number of participants achieving confirmed OR based on RECIST version 1.1 in Part 1. CR was defined as complete disappearance of all target lesions with the exception of nodal disease. All target nodes must decrease to normal size (short axis < 10 mm). All target lesions must be assessed. PR was defined as >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. The short diameter was used in the sum for target nodes, while the longest diameter was used in the sum for all other target lesions. All target lesions must be assessed.

  11. Number of Participants Achieving Objective Response (OR) Based on irRECIST - Part 1 [ Time Frame: Baseline up to end of treatment in Part 1 (maximum of 1606 days) ]
    Number of participants achieving confirmed OR based on irRECIST in Part 1. OR = irCR + irPR. Overall immune related complete response (irCR) was defined as complete disappearance of all lesions (whether measurable or not) and no new lesions. All measurable lymph nodes also must have a reduction in short axis to <10 mm. Overall immune related partial response (irPR) was defined as sum of the diameters (longest for non nodal lesions, shortest for nodal lesions) of target and new measurable lesions decreases >=30%.

  12. Progression-Free Survival (PFS) Based on RECIST Version 1.1 and irRECIST - Part 1 and Part 2 [ Time Frame: Baseline up to end of treatment (maximum of 1606 days) ]
    PFS was defined as the time from initiation of study intervention to first documentation of tumor progression or to death due to any cause, whichever occurred first. PFS was analyzed by the Kaplan-Meier approach for each tumor type. As this outcome measure was a secondary endpoint defined in the protocol to investigate preliminary signal of efficacy, the results were analyzed and are reported for Part 1 dose-escalation groups combined to provide more statistically meaningful results, instead of results analyzed by dose level with very limited number of participants in each group.

  13. Duration of Stable Disease (DOSD) Based on RECIST Version 1.1 and irRECIST - Part 1 and Part 2 [ Time Frame: Baseline up to end of treatment (maximum of 1606 days) ]
    DOSD was analyzed by the Kaplan-Meier approach for each tumor type. Stable disease (SD) was defined as not qualifying for complete response (CR), partial response (PR), or progression. All target lesions must have been assessed. Stable could follow PR only in the rare case that the sum increased by less than 20% from the nadir, but enough that a previously documented 30% decrease no longer held. CR was defined as complete disappearance of all target lesions with the exception of nodal disease. All target nodes must have decreased to normal size (short axis < 10 mm). All target lesions must have been assessed. PR was defined as greater than or equal to 30% decrease under baseline of the sum of diameters of all target measurable lesions. The short diameter was used in the sum for target nodes, while the longest diameter was used in the sum for all other target lesions. All target lesions must have been assessed.

  14. Duration of Response (DOR) Based on RECIST Version 1.1 and irRECIST - Part 1 and Part 2 [ Time Frame: Baseline up to end of treatment (maximum of 1606 days) ]
    DOR was defined as the time from start date (which was the date of first documentation of PR or CR) to date of first documentation of objective progression or death. CR was defined as complete disappearance of all target lesions with the exception of nodal disease. PR was defined as greater than or equal to 30% decrease under baseline of the sum of diameters of all target measurable lesions. Objective progression was defined as 20% increase in the sum of diameters of target measurable lesions above the smallest sum observed (over baseline if no decrease in the sum was observed during therapy), with a minimum absolute increase of 5 mm. As this outcome measure was a secondary endpoint defined in the protocol to investigate preliminary signal of efficacy, the results were analyzed and are reported for Part 1 dose-escalation groups combined to provide more statistically meaningful results, instead of results analyzed by dose level with very limited number of participants in each group.

  15. Time to Response (TTR) Based on RECIST Version 1.1 - Part 2 [ Time Frame: Baseline up to end of treatment in Part 2 (maximum of 851 days) ]
    TTR was the time to confirmed or unconfirmed complete response (CR) or partial response (PR) based on investigator assessment per RECIST v1.1 by tumor type. CR was defined as complete disappearance of all target lesions with the exception of nodal disease. All target nodes must have decreased to normal size (short axis < 10 mm). All target lesions must have been assessed. PR was defined as greater than or equal to 30% decrease under baseline of the sum of diameters of all target measurable lesions. The short diameter was used in the sum for target nodes, while the longest diameter was used in the sum for all other target lesions. All target lesions must have been assessed.

  16. Time to Progression (TTP) Based on RECIST Version 1.1 and irRECIST - Part 2 [ Time Frame: Baseline up to end of treatment in Part 2 (maximum of 851 days) ]
    TTP was the time to objective progression. Objective progression was defined as 20% increase in the sum of diameters of target measurable lesions above the smallest sum observed (over baseline if no decrease in the sum was observed during therapy), with a minimum absolute increase of 5 mm. TTP was analyzed by the Kaplan-Meier approach for each tumor type.

  17. Median Time to Death - Part 2 [ Time Frame: Baseline up to end of treatment in Part 2 (maximum of 851 days) ]
    Median time to death was analyzed by the Kaplan-Meier approach for each tumor type.

  18. Probability of Survival at 6 Months, 1 Year, and 2 Years - Part 2 [ Time Frame: Baseline up to end of treatment in Part 2 (maximum of 851 days) ]
    Probability of survival was calculated from the product-limit method.

  19. Trough PF-06801591 Concentrations (Ctrough) - Part 2 [ Time Frame: Pre-dose on Day 1 of Cycles 2-6, 9, 12, 15, 18, 21, 24, and Follow-up Day 28 in Part 2 ]
    Trough PF-06801591 Concentrations (Ctrough) - Part 2. Ctrough was directly observed from data.



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria (Part 2 Only):

  • Histological or cytological diagnosis of locally advanced or metastatic NSCLC or urothelial carcinoma who have progressed on or were intolerant to standard of care systemic therapy, or for whom standard of care systemic therapy was refused (refusal must be documented) or unavailable.
  • No prior treatment with anti-PD-1 or anti-PD-L1 therapy.
  • NSCLC patients whose tumor is not known to have ALK or EGFR mutations must have progressed on or after no more than 1 prior line of platinum-containing systemic therapy or were intolerant or refused standard of care systemic therapy.
  • NSCLC patients whose tumor is known to have ALK or EGFR mutation must have received prior systemic therapies that only include 1 or more lines of ALK or EGFR targeting drugs and chemotherapy limited to 1 line of a platinum-based regimen and they must have progressed on or after both types of therapies.
  • Urothelial carcinoma patients must have received up to 2 lines of prior systemic therapy and progressed on or after, experienced disease recurrence within 12 months of neoadjuvant or adjuvant treatment, were intolerant to, ineligible or refused platinum-containing systemic therapy. If urothelial cancer patients are treatment naïve and eligible for platinum-containing systemic therapy but are refusing platinum chemotherapy, they must also be documented to have previous PD-L1 high status.
  • Provide archived tumor tissue sample taken within the past 2 years or provide a fresh tumor biopsy sample.
  • At least one measurable lesion as defined by RECIST version 1.1.
  • Adequate renal, liver, thyroid and bone marrow function.
  • Performance status 0 or 1.
  • Patient is capable of receiving study treatment for at least 8 weeks.

Exclusion Criteria (Part 2 Only)

  • Active brain or leptomeningeal metastases.
  • Active, known or suspected autoimmune disease. Patients with vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll. Diagnosis of prior immunodeficiency or organ transplant requiring immunosuppressive therapy or prior allogeneic bone marrow or hematopoietic stem cell transplant.
  • Patients with a condition requiring systemic treatment with either corticosteroids (>10mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids, and adrenal replacement doses >10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
  • Patients with a history of interstitial lung disease, non-infectious pneumonitis, or active pulmonary tuberculosis. Those with active lung infections requiring treatment are also excluded.
  • History of Grade ≥3 immune mediated AE (including AST/ALT elevations that where considered drug related and cytokine release syndrome) that was considered related to prior immune modulatory therapy (eg, immune checkpoint inhibitors, co-stimulatory agents, etc.) and required immunosuppressive therapy.
  • Active hepatitis B or C, HIV/AIDS.
  • Other potentially metastatic malignancy within past 5 years.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02573259


Locations
Show Show 67 study locations
Sponsors and Collaborators
Pfizer
Investigators
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Study Director: Pfizer CT.gov Call Center Pfizer
  Study Documents (Full-Text)

Documents provided by Pfizer:
Study Protocol  [PDF] August 7, 2018
Statistical Analysis Plan  [PDF] August 24, 2020

Additional Information:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT02573259    
Other Study ID Numbers: B8011001
2016-003314-27 ( EudraCT Number )
First Posted: October 9, 2015    Key Record Dates
Results First Posted: December 13, 2021
Last Update Posted: December 13, 2021
Last Verified: October 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Plan Description: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
Keywords provided by Pfizer:
efficacy
safety
pharmacokinetics
pharmacodynamics
open label
dose response
multiple ascending dose
immunogenicity
recommended phase 2 dose
subcutaneous
Additional relevant MeSH terms:
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Carcinoma
Melanoma
Sarcoma
Head and Neck Neoplasms
Carcinoma, Transitional Cell
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms
Neoplasms by Site
Neuroendocrine Tumors
Neuroectodermal Tumors
Neoplasms, Germ Cell and Embryonal
Neoplasms, Nerve Tissue
Nevi and Melanomas
Neoplasms, Connective and Soft Tissue