Antineoplastic Agents

All Drugs and Chemicals

Immune Checkpoint Inhibitors

Pembrolizumab

Antineoplastic Agents, Immunological

Participants received ASP8374 0.5 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 2 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 7 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 20 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 70 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 200 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 700 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 1400 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participant received ASP8374 1400 mg intravenously, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met during treatment period. Qualifying participants entered re-treatment period and received treatment for an additional 16 cycles or until a discontinuation criteria was met.

Participants received ASP8374 20 mg intravenously in combination with pembrolizumab 200 mg adminstered as a 30 minutes intravenous infusion, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met. Qualifying participants received combination treatment for an additional 16 cycles or until a discontinuation criteria was met. Participants who completed 16 cycles of combination treatment who entered the follow-up period with PR or SD were allowed to continue on pembrolizumab alone for a period of up to an additional 19 cycles. If the participant was eligible for the re-treatment period during follow up, administration of pembrolizumab alone was discontinued and combination therapy with ASP8374 was resumed per the protocol.

Participants received ASP8374 70 mg intravenously in combination with pembrolizumab 200 mg adminstered as a 30 minutes intravenous infusion, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met. Qualifying participants received combination treatment for an additional 16 cycles or until a discontinuation criteria was met. Participants who completed 16 cycles of combination treatment who entered the follow-up period with PR or SD were allowed to continue on pembrolizumab alone for a period of up to an additional 19 cycles. If the participant was eligible for the re-treatment period during follow up, administration of pembrolizumab alone was discontinued and combination therapy with ASP8374 was resumed per the protocol.

Participants received ASP8374 200 mg intravenously in combination with pembrolizumab 200 mg adminstered as a 30 minutes intravenous infusion, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met. Qualifying participants received combination treatment for an additional 16 cycles or until a discontinuation criteria was met. Participants who completed 16 cycles of combination treatment who entered the follow-up period with PR or SD were allowed to continue on pembrolizumab alone for a period of up to an additional 19 cycles. If the participant was eligible for the re-treatment period during follow up, administration of pembrolizumab alone was discontinued and combination therapy with ASP8374 was resumed per the protocol.

Participants received ASP8374 700 mg intravenously in combination with pembrolizumab 200 mg adminstered as a 30 minutes intravenous infusion, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met. Qualifying participants received combination treatment for an additional 16 cycles or until a discontinuation criteria was met. Participants who completed 16 cycles of combination treatment who entered the follow-up period with PR or SD were allowed to continue on pembrolizumab alone for a period of up to an additional 19 cycles. If the participant was eligible for the re-treatment period during follow up, administration of pembrolizumab alone was discontinued and combination therapy with ASP8374 was resumed per the protocol.

Participants received ASP8374 1400 mg intravenously in combination with pembrolizumab 200 mg adminstered as a 30 minutes intravenous infusion, on day 1 of every 3 week cycle for a period of up to 16 cycles or until a discontinuation criterion was met. Qualifying participants received combination treatment for an additional 16 cycles or until a discontinuation criteria was met. Participants who completed 16 cycles of combination treatment who entered the follow-up period with PR or SD were allowed to continue on pembrolizumab alone for a period of up to an additional 19 cycles. If the participant was eligible for the re-treatment period during follow up, administration of pembrolizumab alone was discontinued and combination therapy with ASP8374 was resumed per the protocol.

ASP8374

Vice President Medical Sciences - Oncology

The primary purpose of this study is to evaluate the tolerability and safety profile of ASP8374 when administered as a single agent and in combination with pembrolizumab in participants with locally advanced (unresectable) or metastatic solid tumor malignancies. Also primary purpose is to characterize the pharmacokinetic profile of ASP8374 when administered as a single agent and in combination with pembrolizumab. Last primary purpose of this study is to determine the recommended Phase 2 dose (RP2D) of ASP8374 when administered as a single agent and in combination with pembrolizumab.

The secondary purpose of this study is to evaluate the anti-tumor effect (objective response rate \[ORR\], duration of response \[DOR\], persistence of response after discontinuation, and disease control rate \[DCR\]) of ASP8374 when administered as a single agent and in combination with pembrolizumab.

NTP: Neutropenia

NHAE:Non-haematological AE

GBS: Guillain-Barré syndrome""

IRR: Infusion-related reaction

AST: Aspartate aminotransferase

ALT: Alanine aminotransferase

MS/MG: Myasthenia Syndrome/Myasthenia Gravis

TRT: Treatment-related Toxicity

TCP: Thrombocytopenia

This is a multi-center, multiple-dose, dose-escalation and expansion study of ASP8374 as a single agent and in combination with pembrolizumab. After discontinuation of study drug treatment (initial treatment and re-treatment), all participants will complete an end of treatment visit along with 30-day and 90-day safety follow-up visits from the last dose of ASP8374. Participants will be enrolled in respectively escalation cohorts or expansion cohorts. The 90-day safety follow-up visit is optional for participants who discontinue due to progressive disease or initiate new anticancer treatment after the last dose of study drug.

Escalation cohorts: Approximately 60 participants may be enrolled in the escalation cohorts (approximately 30 participants for monotherapy and 30 participants for combination therapy).

Expansion cohorts: The total number of subjects in the expansion cohorts will depend on the observed pharmacokinetic and antitumor activity. It is estimated that approximately 240 participants may be enrolled in the monotherapy and combination therapy expansion cohorts.

As the number of participants in the escalation cohorts and the expansion cohorts will depend on the observed Dose Limiting Toxicity (DLT), pharmacokinetics and antitumor activity, approximately 300 participants are expected to be enrolled.

A Multiple-dose Study of ASP8374, an Immune Checkpoint Inhibitor, as a Single Agent and in Combination With Pembrolizumab in Subjects With Advanced Solid Tumors

A Phase 1b Study of ASP8374, an Immune Checkpoint Inhibitor, as a Single Agent and in Combination With Pembrolizumab in Subjects With Advanced Solid Tumors

Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as compounds terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Conditions and exceptions are described under the Sponsor Specific Details for Astellas on www.clinicalstudydatarequest.com.

DLT was defined as any of the following AE that cannot clearly attribute to a cause other than study drug:

Grade (Gr) 4 NTP or Gr ≥ 3 febrile NTP Gr 4 TCP; or Gr 3 TCP accompanied by bleeding that required any transfusion Gr 4 anemia or Gr 3 anemia requiring transfusion Gr ≥ 3 NHAE Gr ≥ 2 pneumonitis Gr ≥ 2 encephalopathy, meningitis, or motor or sensory neuropathy AST or ALT \> 5x upper limit of normal (ULN; Gr ≥ 3) without liver metastases AST or ALT \> 8 x ULN in participants with liver metastases AST or ALT \> 3 x ULN \& total bilirubin \> 2 x ULN (in participant with Gilbert syndrome: AST or ALT \> 3x ULN \& direct bilirubin \> 1.5 x ULN) Total bilirubin \> 3x ULN (Gr ≥ 3) GBS or MS/MG IRR that required the infusion to be discontinued Prolonged delay (\> 2 weeks) in initiating cycle 2 due to TRT Any TRT that caused the participant to discontinue treatment during cycle 1 Missing \>25% of ASP8374 or pembrolizumab doses as a result of drug-related AE(s) during the 1st cycle Gr 5 toxicity

An AE was defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE could therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. An AE is considered "serious" if, it results in any of the following outcomes:

results in death; is life-threatening; results in persistent or significant disability/incapacity or substantial disruption of the ability to conduct normal life functions; results in congenital anomaly, or birth defect; requires inpatient hospitalization; or leads to prolongation of hospitalization; other medically important events. TEAE was defined as an AE observed after starting administration of the study drug.

Number of participants with infusion related reactions are reported.

AEs associated with pembrolizumab exposure may represent an immune-related response. Immune-related AEs observed with currently approved check point inhibitor CPIs include rash, oral mucositis, dry mouth, colitis/diarrhea, hepatitis, pneumonitis, and endocrinopathies (hypophysitis, hypothyroidism, hyperthyroidism, adrenal insufficiency and Type 1 diabetes mellitus). Other less frequent irAEs associated with CPIs include: nephritis; pancreatitis; myositis; arthritis; neurologic toxicities (Guillain-Barre syndrome, myasthenia gravis, posterior reversible encephalopathy syndrome, aseptic meningitis, enteric neuropathy, transverse myelitis, and autoimmune encephalitis), cardiotoxicity (myocarditis and conduction abnormalities); hematologic toxicity (red cell aplasia, neutropenia, thrombo-cytopenia, acquired hemophilia A, and cryoglobulinemia); and eye inflammation (episcleritis, conjunctivitis, uveitis or orbital inflammation).

The ECOG was used to assess performance status. Number of participants in each of the ECOG PS grade were reported.

0 = Fully active, able to carry on all predisease performance without restriction;

1. Restricted in physically strenuous activity, but ambulatory and able to carry out work of a light or sedentary nature;
2. Ambulatory and capable of all self-care, but unable to carry out any work activities. Up and about more than 50% of waking hours;
3. Capable of only limited self-care, confined to bed or chair more than 50% of waking hours;
4. Completely disabled. Cannot carry on any self-care. Totally confined to bed or chair.

Area under the concentration-time curve from the time zero to the last measurable concentration was derived from the plasma samples.

Area under the concentration-time curve from the time of dosing extrapolated to time infinity was derived from the plasma samples.

Percentage of AUCinf due to extrapolation from the last measurable concentration to time infinity was derived from the plasma samples.

AUCtau: Area under the concentration-time curve from the time of dosing to the start of the next dosing interval was derived from plasma samples.

Maximum plasma concentration of ASP8374 was derived from the plasma samples.

Trough Concentration was derived from the PK samples.

Time of maximum plasma concentration of ASP8374 was derived from the plasma samples.

Terminal half life of ASP8374 was derived from the plasma samples.

Time of last measurable concentration was derived from the plasma samples.

Total systemic observed clearance after intravenous dosing was derived from the plasma samples

Volume of distribution after intravenous dosing during the terminal elimination phase was derived from plasma samples.

Volume of distribution at steady state after intravenous dosing was derived from plasma samples.

The BOR rate was defined as the percentage of participants whose best response was Complete Response (CR) or Partial Response (PR) as defined by RECIST v1.1 criteria. CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

The BOR rate was defined as the percentage of participants whose best response was immune complete response (iCR) or immune partial response (iPR) as defined by RECIST v1.1 criteria. immune complete response (iCR) or immune partial response (iPR). iCR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. iPR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

ORR as per RECIST v1.1 was defined as the percentage of participants for each dose level whose best overall response was rated as confirmed CR or PR. CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

ORR as per iRECIST was defined as the percentage of participants for each dose level whose best overall response was rated as confirmed iCR or iPR. iCR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. iPR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

DOR as per RECIST v1.1 was defined as the time from the date of the first response CR/PR (whichever is first recorded) to the date of radiographical progression or date of censoring. CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

DOR as per iRECIST was defined as the time from the date of the first response iCR/iPR (whichever is first recorded) to the date of radiographical progression or date of censoring. iCR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. iPR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

Persistence of response as per RECIST v1.1 was defined as the time from the date of treatment discontinuation to the date of radiographical progression or date of censoring. Persistence of response was derived for participants who at the time of treatment discontinuation had a confirmed response of CR or PR based on RECIST 1.1. CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

Persistence of response as per iRECIST was defined as the time from the date of treatment discontinuation to the date of radiographical progression or date of censoring. Persistence of response was derived for participants who at the time of treatment discontinuation had a confirmed response of iCR or iPR. iCR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. iPR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.

DCR as per RECIST v1.1 was defined as the percentage of participants for each dose level whose best overall response is rated as confirmed CR, PR or Stable Disease (SD). CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters. SD was defined as neither sufficient decrease to qualify for PR nor sufficient increase to qualify for progressive disease taking as reference the smallest sum of diameters.

DCR as per iRECIST was defined as the perccentage of participants for each dose level whose best overall response is rated as confirmed iCR, iPR or immune Stable Disease (iSD). iCR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. iPR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters. iSD was defined as neither sufficient decrease to qualify for PR nor sufficient increase to qualify for progressive disease taking as reference the smallest sum of diameters.

Time to response was defined as the time from first dose date until the first response CR/PR (whichever is first recorded). CR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. PR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters. Time to response was calculated for objective responders only. Confirmation response is required.

Time to response was defined as the time from first dose date until the first response iCR/iPR (whichever is first recorded). iCR was defined as disappearance of all target and nontarget lesions. Any pathological lymph nodes (whether target or nontarget) must have reduction in short axis to \< 10 mm from baseline measurement. iPR was defined as at least a 30% decrease in the sum of diameters (longest for nonnodal lesions, short axis for nodal lesions) of target lesions taking as reference to the baseline sum of diameters.Time to response was calculated for objective responders only. Confirmation response is required.

Merck Sharp & Dohme LLC

Astellas Pharma Global Development, Inc.

Symptoms and General Pathology

All Conditions

Neoplasms

Rare Diseases

Recurrence

Glioma

Glioblastoma

Disease Attributes

Astrocytoma

Neoplasms, Neuroepithelial

Neuroectodermal Tumors

Neuroectodermal Tumors, Primitive

Neoplasms, Germ Cell and Embryonal

Neoplasms by Histologic Type

Neoplasms, Glandular and Epithelial

Neoplasms, Nerve Tissue

Neuroepithelioma

Cemiplimab

A 3+3 dose escalation design will be used to determine maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D) of ASP8374 when combined with cemiplimab.

Participants will receive ASP8374 and Cemiplimab every 3 weeks for up to 2 years. ASP8374 will be available until October 31, 2022. Subjects may continue treatment with cemiplimab alone after that date.

Upon determination of the MTD/RP2D of ASP8374 plus cemiplimab in Cohort 1, a dose expansion will be performed in which eligible participants who are candidates for surgical resection will enroll to Cohort 2 and will be randomized into one of two treatment groups (2A-2B).

Group 2A: IV ASP8374 plus cemiplimab within 14± 5 days prior to surgery at the MTD/RP2D established in Cohort 1.

Group 2B: No immune checkpoint therapy prior to surgery.

Post-operatively, all Cohort 2 participants will receive ASP8374 plus cemiplimab every 3 weeks administered at the MTD/RP2D established by Cohort 1

cemiplimab

David A Reardon, MD

This study is looking at the safety and efficacy of the drug combination of ASP8374 with cemiplimab in people with recurrent malignant glioma.

The study will be conducted in two parts, the first portion of the study will be to establish the highest dose of ASP8374 that can be given safely with cemiplimab and will be used as the recommended dose of ASP8374 in combination with cemiplimab for the second portion of the study. The second portion of the study will be to compare the effect of having ASP8374 in combination with cemiplimab prior to surgery.

The names of the study drugs involved in this study are:

* ASP8374
* Cemiplimab

This is a multicenter, randomized, open-label, phase Ib trial of ASP8374 plus cemiplimab among recurrent malignant glioma participants.

Initially, eligible participants will enroll to Cohort 1 which will determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D) of ASP8374 when combined with cemiplimab among recurrent malignant glioma participants using a 3+3 design.

Upon determination of the MTD/RP2D of ASP8374 plus cemiplimab in Cohort 1, a dose expansion will be performed in which eligible participants who are candidates for surgical resection will enroll to Cohort 2 and will be randomized into one of two treatment groups (2A-2B).

Group 2A: IV ASP8374 plus cemiplimab within 14± 5 days prior to surgery at the MTD/RP2D established in Cohort 1.

Group 2B: No immune checkpoint therapy prior to surgery.

The U.S. Food and Drug Administration (FDA) has not approved ASP8374 as a treatment for any disease. The U.S. Food and Drug Administration (FDA) has not approved cemiplimab for recurrent malignant glioma but it has been approved for other uses.

The research study procedures include: screening for eligibility, then study treatment including evaluations and follow up visits. Participants will receive study treatment for up to two years and will be followed for their tumor's response, whether or not their disease gets worse, and for side effects.

It is expected that about 24 people will take part in this research study. At least 6 in cohort 1 and 18 in cohort 2.

Pharmaceutical company Astellas is supporting this research study by providing study funding and study drug, ASP8374 and Regeneron is supporting this research by providing study drug cemiplimab.

ASP8374 + Cemiplimab in Recurrent Glioma

Phase Ib Trial of ASP8374 and Cemiplimab in Recurrent Malignant Glioma Patients

The Dana-Farber / Harvard Cancer Center encourages and supports the responsible and ethical sharing of data from clinical trials. De-identified participant data from the final research dataset used in the published manuscript may only be shared under the terms of a Data Use Agreement. Requests may be directed to: \[contact information for Sponsor Investigator or designee\]. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research.

primary endpoint for Cohort 1 will be determination of the MTD/RP2D of ASP8374 when administered with cemiplimab among recurrent malignant glioma participants.

CD8+ TIL density from tumors obtained from participants randomized to the neoadjuvant study arm (2A) will be compared to tumor CD8+ TIL density obtained from control participants enrolled on Arm 2B who do not receive neoadjuvant therapy.

Assessed by Common Terminology Criteria for Adverse Events (CTCAE) version 5.0

Assessed by Response Assessment in Neuro-Oncology (RANO)1 and Immunotherapy RANO (iRANO) guidelines.

Regeneron Pharmaceuticals

Astellas Pharma Inc

Dana-Farber Cancer Institute

Principal Investigator

Pharmaceutical Solutions

Participants will receive dose A of ASP8374 solution intravenously on day 1 of every 3-week cycle.

Participants will receive dose B of ASP8374 solution intravenously on day 1 of every 3-week cycle.

Global Medical Lead

The purpose of this study is to evaluate the tolerability and safety profile and to characterize the pharmacokinetic profile of ASP8374 in Japanese patients with locally advanced (unresectable) or metastatic solid tumors.

This study also evaluates the anti-tumor effect of ASP8374.

This study consists of two arms (Arm A: ASP8374 dose A; and Arm B: ASP8374 dose B). Arm B would only be opened if Arm A is deemed tolerable.

The study consists of 2 periods: Screening (up to 28 days) and treatment period. The Dose Limiting Toxicities (DLT) observation period is set at the beginning of the treatment period. A subject can continue to participate in the study after the end of the DLT observation period until discontinuation criteria are met. After discontinuation of study drug treatment, all subjects will complete an end of treatment visit and safety follow-up visits.

Study of ASP8374, an Immune Checkpoint Inhibitor, in Japanese Patients With Advanced Solid Tumors

A Phase 1, Open Label Study of ASP8374, an Immune Checkpoint Inhibitor, in Japanese Patients With Advanced Solid Tumors

Access to anonymized individual participant level data will not be provided for this trial as it meets one or more of the exceptions described on www.clinicalstudydatarequest.com under "Sponsor Specific Details for Astellas."

DLT is graded using National Cancer Institute Common Toxicity Criteria for Adverse Events \[NCI-CTCAE\] Version 4.03. The DLT observation period may be increased if deemed appropriate by the Tolerability Evaluation Meeting.

An AE is any untoward medical occurrence in a subject administered a study drug, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product whether or not considered related to the medicinal product.

Most frequent immune-related AEs observed with currently approved checkpoint inhibitors include rash, oral mucositis, dry mouth, colitis/diarrhea, hepatitis, pneumonitis, and endocrinopathies .

An AE is considered "serious" if, in the view of either the investigator or sponsor, it results in any of the following outcomes: death, life-threatening, persistent or significant disability/incapacity or substantial disruption, congenital anomaly or birth defect, hospitalization, or medically important event

Number of patients with potentially clinically significant laboratory values.

ECGs should be obtained after the subject has rested quietly and is awake in a fully supine position (or semi-recumbent, if supine is not tolerated) for 10 minutes before the first ECG from a triplicate or single ECG. Any clinically significant adverse changes on the ECS will be reported as (serious) AEs.

Number of patients with potentially clinically significant vital sign values.

Number of patients with potentially clinically significant physical exam values.

The ECOG Scale \[Oken, 1982\] will be used to assess performance status ; 0=Fully active, able to carry on all predisease performance without restriction; 1=Restricted in physically strenuous activity, but ambulatory and able to carry out work of a light or sedentary nature, (e.g., light housework, office work); 2=Ambulatory and capable of all self-care, but unable to carry out any work activities. Up and about more than 50% of waking hours; 3=Capable of only limited self-care, confined to bed or chair more than 50% of waking hours; 4=Completely disabled. Cannot carry on any self-care. Totally confined to bed or chair.

AUClast: area under the concentration-time curve from the time of dosing up to the last measurable concentration. AUClast will be derived from the PK serum samples collected.

AUCinf: AUC from the time of dosing extrapolated to time infinity. AUCinf will be derived from the PK serum samples collected.

AUCinf(%extrap): Percentage of AUCinf due to extrapolation from the last measurable concentration to time infinity

AUCtau: AUC from the time of dosing to the start of the next dosing interval at multiple dose conditions. AUCtau will be derived from the PK serum samples collected.

Cmax: maximum concentration. Cmax will be derived from the PK serum samples collected.

Ctrough: trough concentration. Ctrough will be derived from the PK serum samples collected.

tmax: time of maximum concentration. Tmax will be derived from the PK serum samples collected.

t1/2: terminal elimination half-life. t1/2 will be derived from the PK serum samples collected.

tlast: time of last measurable concentration. tlast will be derived from the PK serum samples collected.

CL: total clearance after intravenous dosing. CL will be derived from the PK serum samples collected.

Vz: volume of distribution after intravenous dosing during the terminal elimination phase. will be derived from the PK serum samples collected. Vz will be derived from the PK serum samples collected.

Vss: volume of distribution at steady state after intravenous dosing. Vss will be derived from the PK serum samples collected.

Tumor size is defined as the sum of the diameters of all target lesions per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1. The percent change from baseline in tumor size will be calculated for subjects with target lesions at baseline.

BOR is defined as the best response recorded from the start of the study treatment until the end of treatment.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
A Multiple-dose Study of ASP8374, an Immune Checkpoint Inhibitor, as a Single Agent and in Combination With Pembrolizumab in Subjects With Advanced Solid Tumors	NCT03260322	Advanced Solid ...	ASP8374 Pembrolizumab	18 Years -	Astellas Pharma Inc
ASP8374 + Cemiplimab in Recurrent Glioma	NCT04826393	Glioblastoma Recurrent Gliob...	ASP8374 cemiplimab	18 Years -	Dana-Farber Cancer Institute
Study of ASP8374, an Immune Checkpoint Inhibitor, in Japanese Patients With Advanced Solid Tumors	NCT03945253	Advanced Solid ...	ASP8374	20 Years -	Astellas Pharma Inc
Study of ASP8374, an Immune Checkpoint Inhibitor, in Japanese Patients With Advanced Solid Tumors	NCT03945253	Advanced Solid ...	ASP8374	20 Years -	Astellas Pharma Inc

Spots Global Cancer Trial Database for asp8374

Every month we try and update this database with for asp8374 cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Spots Global Cancer Trial Database for asp8374

Every month we try and update this database with for asp8374 cancer trials from around the world to help patients and their families find trials that might be right for them. We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Every month we try and update this database with for asp8374 cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.