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Efficacy Comparison of Dostarlimab Plus Chemotherapy Versus Pembrolizumab Plus Chemotherapy in Participants With Metastatic Non-squamous Non-small Cell Lung Cancer (NSCLC)

A Randomized, Phase 2, Double-blind Study to Evaluate the Efficacy of Dostarlimab Plus Chemotherapy Versus Pembrolizumab Plus Chemotherapy in Metastatic Non-Squamous Non-Small Cell Lung Cancer

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04581824
Enrollment
243
Registered
2020-10-09
Start date
2020-11-19
Completion date
2024-09-10
Last updated
2025-08-08

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

Conditions

Lung Cancer, Non-Small Cell

Keywords

Non small cell lung cancer, Dostarlimab, Pembrolizumab, Pemetrexed, Carboplatin, Cisplatin

Brief summary

NSCLC comprises of approximately 84 percent (%) of all lung cancers and is often diagnosed at advanced stage due to poor prognosis. Dostarlimab is an immunoglobulin G (IgG)4 kappa humanized monoclonal antibody (mAb) that binds with high affinity to programmed cell death protein 1 (PD 1), resulting in inhibition of binding to programmed death ligand 1 (PD L1) and programmed death ligand 2 (PD L2). This study aims to compare the efficacy and safety PD-1 inhibitors dostarlimab and pembrolizumab, when administered in combination with chemotherapy (pemetrexed, cisplatin and carboplatin), in participants with non-squamous NSCLC without a known sensitizing epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), or receptor tyrosine kinase-1 (ROS-1) mutation, BRAF V600E mutation, or other genomic aberration for which an approved targeted therapy is available. A total of approximately 240 participants will be enrolled in the study for a period of 5 years.

Interventions

DRUGDostarlimab

Dostarlimab will be administered through a 30 minute infusion at a dose of 500 milligrams (mg) intravenously (IV) every 3 weeks (Q3W) up to a maximum of 35 cycles (each cycle of 21 days).

DRUGPembrolizumab

Pembrolizumab will be administered through a 30 minute infusion at a dose of 200 mg Q3W up to a maximum of 35 cycles (each cycle of 21 days).

DRUGChemotherapy

Pemetrexed will be administered at 500 milligram per meter square (mg/m\^2 ) IV through a 10 minute IV infusion Q3W, up to a maximum of 35 cycles (each cycle of 21 days). Cisplatin will be administered at 75 mg/m\^2 through a 30 minute IV infusion Q3W for 4 cycles (each cycle of 21 days) as per investigator decision. Carboplatin will also be administered at area under the concentration time curve 5 milligram/milliliters/minute (mg/mL/min) (maximum dose: 750 mg) through a 15 to 60 minute IV infusion Q3W for 4 cycles (each cycle of 21 days) as per investigator decision.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Masking description

Participants and study staff may only be blinded to study treatment.

Eligibility

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

Inclusion criteria

* Participant must be greater than equal to (\>=) 18 years old, must be able to understand the study procedures, and agrees to participate in the study by providing written informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. * Participant has histologically- or cytologically-confirmed metastatic non-squamous NSCLC with documented absence of a sensitizing EGFR, ALK, ROS-1, or BRAFV600E mutation or other genomic aberration for which an approved targeted therapy is available. Mixed tumors will be categorized by the predominant cell type; if the tumor has predominantly squamous cell histology or if small cell elements are present, the participant is ineligible. * Participants must have measurable disease, that is (i.e.) presenting with at least 1 measurable lesion per RECIST v1.1 as determined by the local site Investigator/radiology assessment. Target lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions and if there are other target lesions. If there is only 1 target lesion that was previously irradiated, the participant is not eligible. * Participant has documented PD L1 status by the 22C3 pharmDx assay (Agilent/Dako). If no prior PD L1 result is available at the time of Screening, the participant can be tested locally using the stated method, or central PD L1 testing can be completed. Results are needed for stratification and must be available prior to randomization. * Participant has an ECOG performance status score of 0 or 1. * Participant has a life expectancy of at least 3 months. * Participant has adequate organ function. * Participant has recovered to Grade less than equal to (\<=)1 from any prior treatment related toxicities at the time of randomization. A participant with Grade 2 alopecia is an exception to this criterion and may qualify for this study. * Contraceptive use by male and female participants should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. * Male participants are eligible to participate if they agree to the following during the Treatment Period and for at least 150 days after the last dose of study treatment: * Refrain from donating sperm plus, either: * Be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long term and persistent basis) and agree to remain abstinent. * Must agree to use contraception/barrier as follows: * Agree to use a male condom (and should also be advised of the benefit for a female partner to use a highly effective method of contraception, as a condom may break or leak) when having sexual intercourse with a woman of childbearing potential (WOCBP) who is not currently pregnant. * Agree to use a male condom when engaging in any activity that allows for passage of ejaculate to another person. * A female participant is eligible to participate if she is not pregnant or breastfeeding, and 1 of the following conditions applies: * Is a woman of non childbearing potential (WONCBP), * Is a WOCBP, using a contraceptive method that is highly effective (with a failure rate of \<1% per year and, preferably, with low user dependency) during the Treatment Period and for at least 180 days after the last dose of study treatment and agrees not to donate eggs (ova or oocytes) for the purpose of reproduction during this period. The Investigator should evaluate the potential for contraceptive method failure ( for example \[e.g.\], noncompliance and recently initiated) in relationship to the first dose of study treatment. * A WOCBP must have a negative highly sensitive pregnancy test (urine or serum, as required by local guidelines) within 72 hours before the first dose of study treatment. If a urine test cannot be confirmed as negative (eg, an ambiguous result), a serum pregnancy test is required. In such cases, the participant must be excluded from participation if the serum pregnancy result is positive.

Exclusion criteria

* Participant has received prior systemic therapy for the treatment of metastatic NSCLC. Participants who have received neoadjuvant or adjuvant chemotherapy are eligible if the neoadjuvant/adjuvant therapy was completed at least 12 months prior to the development of metastatic disease. * Participant has received prior therapy with a PD (L)1 or PD L2 inhibitor, a cytotoxic T lymphocyte associated protein 4 (CTLA 4) inhibitor, a T cell immunoglobulin and mucin domain containing 3 (TIM 3) inhibitor, or any other immunotherapy agent (eg, OX40) for the treatment of cancer. * Participant has received radiation to the lung that is \>30 Gray (Gy) within 6 months of the first dose of study treatment. * Participant has completed palliative radiotherapy within 7 days of the first dose of study treatment. * Participant is ineligible if any of the following hepatic characteristics are present: * Alanine aminotransferase (ALT) \>2.5 times upper limit of normal (ULN) without liver metastases/tumor infiltration. * ALT \>5 times ULN with liver metastases/tumor infiltration. * Bilirubin \>1.5 times ULN (isolated bilirubin \>1.5 times ULN is acceptable if bilirubin is fractionated and direct bilirubin is \<35%) * Current active liver or biliary disease (with the exception of Gilbert's syndrome or asymptomatic gallstones, liver metastases, or otherwise stable chronic liver disease per Investigator assessment) * Participant has a corrected QT interval (QTc) \>450 milliseconds (msec) (or QTc \>480 msec for participants with bundle branch block). * Participant has had major surgery within 3 weeks of the first dose of study treatment or has not adequately recovered from any AEs (Grade \<=1) and/or complications from any major surgery. Surgical implantation of a port catheter is not exclusionary. * Participant has an additional malignancy or a history of prior malignancy, with the exception of adequately treated basal or squamous skin cancer, cervical carcinoma in situ, or bladder carcinoma in situ without evidence of disease, or had a malignancy treated with curative intent and with no evidence of disease recurrence for 5 years since the initiation of that therapy. * Participant has known active brain metastases and/or leptomeningeal metastases. Participants who have received prior therapy for their brain metastases and have radiographically stable central nervous system disease may participate, provided they are neurologically stable for at least 2 weeks before study entry and must be off corticosteroids within 3 days prior to the first dose of study treatment. Stable brain metastases by this definition should be established prior to the first dose of study treatment. Participants with known untreated, asymptomatic brain metastases (i.e., no neurological symptoms, no requirements for corticosteroids, no or minimal surrounding edema, and no lesions \>1.5 centimeters \[cm\]) may participate, but will require regular imaging of the brain as a site of disease. * Participant has tested positive for the presence of hepatitis B surface antigen or has a positive hepatitis C antibody test result at Screening, or within 3 months prior to first dose of study treatment. For potent immunosuppressive agents, participants who test positive for the presence of hepatitis B core antibody should also be excluded. * Participant has an active infection requiring systemic therapy within 1 week prior to the anticipated first dose of study treatment. * Participant has known human immunodeficiency virus (HIV) (positive for HIV 1 or HIV 2 antibodies). * Participant has active autoimmune disease that required systemic treatment in the past 2 years, is immunocompromised in the opinion of the Investigator, or is receiving systemic immunosuppressive treatment. Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment. * Participant has received systemic steroid therapy within 3 days prior to the first dose of the study treatment or is receiving any other form of immunosuppressive medication. Replacement therapy is not considered a form of systemic therapy. Use of inhaled corticosteroids, local steroid injection, or steroid eye drops is allowed. * Participant has symptomatic ascites or pleural effusion. A participant who is clinically stable following treatment of these conditions (including therapeutic thoraco or paracentesis) is eligible. * Participant has current interstitial lung disease, current pneumonitis, or a history of pneumonitis that required the use of oral or IV glucocorticoids to assist with management. Lymphangitic spread of the NSCLC is not exclusionary. * Participant has a history or current evidence of any medical condition, therapy, or laboratory abnormality that might confound the study results, interfere with their participation for the full duration of the study treatment, or indicate it is not in the best interest of the participant to participate, in the opinion of the Investigator. * Participant has clinically active diverticulitis, intra-abdominal abscess, gastrointestinal obstruction, or peritoneal carcinomatosis. * Participant has preexisting peripheral neuropathy that is Grade \>=2 by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0 criteria. * Participant has received a live vaccine within 30 days of the first dose of study treatment. Seasonal flu vaccines that do not contain live virus are permitted. * Participant does not meet requirements per local prescribing guidelines for receiving treatment with either pemetrexed and cisplatin or carboplatin. * Participant has sensitivity to any of the study treatments, or components thereof, or a history of drug or other allergy that, in the opinion of the Investigator or GlaxoSmithKline (GSK) Medical Monitor, contraindicates their participation. * Participant is unable to interrupt aspirin or other nonsteroidal antiinflammatory drugs (NSAIDs), other than an aspirin dose \<=1.3 gram (g) per day, for a 5 day period (8 day period for long acting agents, such as piroxicam).

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)Up to approximately 20 monthsORR was defined as the percentage of participants who had a confirmed complete response (CR) or confirmed partial response (PR) as their best overall response (BOR) recorded from the date of randomization until disease progression or initiation of new anti-cancer therapy, whichever is earlier based on blinded independent central review (BICR) evaluation criteria in solid tumors (RECIST) version 1.1 (v1.1). CR was defined as disappearance of all target lesions. Any pathological lymph nodes must be \<10 millimeter in the short axis. PR was defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters (e.g., percent change from baseline).

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)Up to approximately 46 monthsPFS was defined as the time from the date of randomization to the date of disease progression (PD) or death by any cause, whichever occurs first. PFS was evaluated using Response Evaluation Criteria in Solid Tumors Criteria (RECIST) version 1.1 based on Investigator assessment. PD is defined as at least a 20% increase in the sum of the diameters of target lesions, taking as a reference, the smallest sum of diameters recorded since the treatment started (e.g., percent change from nadir, where nadir is defined as the smallest sum of diameters recorded since treatment start).
Number of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationUp to 46 monthsAE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. A TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state. Number of participants with TEAEs, TEAEs leading to death, and TEAEs leading to treatment discontinuation are presented. AEs were coded using the Medical Dictionary for Regulatory Affairs (MedDRA dictionary).
Number of Participants With Treatment Emergent Immune-related Adverse Event (irAE)Up to 46 monthsThe irAEs are events which are severe or fatal and can occur in participants treated with monoclonal antibodies directed against immune checkpoints, including pembrolizumab and dostarlimab. While irAEs (eg, diarrhea/colitis, pneumonitis, nephritis, hypophysitis, adrenalitis, thyroiditis, severe skin reactions, uveitis, myocarditis, and hepatotoxicity) usually occur during treatment, symptoms can also manifest after discontinuation of treatment. AEs were coded using the MedDRA dictionary.
Number of Participants With Serious AEsUp to approximately 46 monthsAn SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly/birth defect or is an important medical event that may jeopardize the participant or may require medical or surgical intervention to prevent one of the above outcomes. SAEs are subset of AEs. AEs were coded using the MedDRA dictionary.
Number of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUp to approximately 46 monthsNormal ranges were 30 to 110 units per liter (U/L) (Amylase); 4. 5 to 5. 6 milligram/deciliters (mg/dL) (Calcium); 96 to 100 milliequivalents (mEq)/ L (Chloride); 2. 5 to 4.5 mg/dL (Phosphate); 6 to 8.3 grams/L (protein); 6 to 24 millimoles/L (Urea) and 7 to 20 mg/dL (Urea nitrogen). Participants were counted in worst case category that their value changes to low, normal or no change \[NC\] or high), unless there is NC in their category. Participants whose laboratory value category was unchanged (e.g. High to High) or whose value became normal, were recorded in To Normal or No Change category. Participants were counted twice if participant had values that changed To Low and To High, so percentages may not add to 100%.
Number of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineUp to approximately 46 monthsNormal ranges were 0.01 to 0.3\*10\^9 cells/L (basophils); 41 to 50 percentage of red blood cells (RBC) in blood (hematocrit); 80-100 femtoliters (fl) (erythrocytes \[referred as Ery\] mean corpuscular volume (EMCV)); 2 to 8 percentage of WBC (monocytes); and Women: 4.2 to 5.4 million RBC/ microliter (mcL) of blood and Men: 4.7 to 6.1 million RBC/ mcL (erythrocytes). Participants were counted in worst case category that their value changes to low, normal or no change \[NC\] or high), unless there is NC in their category. Participants whose laboratory value category was unchanged (e.g. High to High) or whose value became normal, were recorded in To Normal or No Change category. Participants were counted twice if participant had values that changed To Low and To High, so percentages may not add to 100%.
Number of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineUp to approximately 46 monthsUrine samples were collected to assess urine Bilirubin, glucose, ketones, Leukocyte Esterase, Nitrite, occult blood and Protein using dipstick method. The dipstick test gave results in a semi-quantitative manner, and results for urinalysis parameters were recorded as No Change/Decreased, Increase to TRACE, Increase to +, Increase to ++, Increase to +++ and Increase to ++++. Baseline (Day 1) was defined as the most recent, non-missing value prior to or on the first study treatment dose date.
Change From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Up to approximately 46 monthsBlood samples were collected for the assessment Free Triiodothyronine (T3) and Free Thyroxine (T4).
Overall Survival (OS)Up to approximately 46 monthsOS was defined as the time from the date of randomization to the date of death by any cause.
Change From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Up to approximately 46 monthsBlood samples were collected for the assessment of Triiodothyronine (T3) and Thyroxine (T4).
Number of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)Up to approximately 46 monthsDBP and SBP were measured in a semi-supine position after 5 minutes rest. Grades were derived based on numeric criteria as defined in Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0. Systolic Blood Pressure (SBP): Grade 0 (\<120 Millimetre of mercury (mmHg)), Grade 1 (120-139 mmHg), Grade 2 (140-159 mmHg), Grade 3 (\>=160 mmHg). Diastolic Blood Pressure (DBP): Grade 0 (\<80 mmHg), Grade 1 (80-89 mmHg), Grade 2 (90-99 mmHg), Grade 3 (\>=100 mmHg). An increase is defined as an increase in the CTCAE grade relative to the Baseline grade. Only those participants with grade increase have been presented. Participants with missing Baseline values were assumed to have a Baseline value of G0.
Number of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)Up to approximately 46 monthsNormal range of Pulse Rate was 60 to 100 beats/min. Participants were counted in worst case category that their value changes to low, to within \[w/in\] Range or No Change \[NC\] or high, unless there is NC in their category. Participants whose laboratory value category was unchanged (e.g. High to High) or whose value became normal, were recorded in To Normal or No Change category.
Number of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance StatusUp to approximately 46 monthsPerformance status was assessed using the ECOG scale (Grade 0-5). Grades: 0: Fully active, able to carry on all pre-disease performance without restriction. 1: Restricted in physically strenuous activity but ambulatory, able to carry out work of light nature. 2: Ambulatory, capable of self-care, unable to carry out work activities. Up and about more than 50% waking hours. 3: Capable of limited self-care, confined to bed/chair more than 50% waking hours. 4: Completely disabled. Cannot carry on any self-care. Totally confined to bed/chair. 5: Dead.
Mean Change From Baseline in Electrocardiogram (ECG) ParametersBaseline (Day 1), Cycle 1 Day 1, and end of treatment (Up to approximately 46 months)Participants were in a supine or semi recumbent position (about 30 degrees of elevation) and rested for approximately 2 minutes before ECGs were recorded. Single 12-lead ECG was recorded using an ECG machine. PR, QRS, QT, QTcF, and RR intervals were recorded
Mean Change From Baseline in ECG Mean Heart RateBaseline (Day 1), Cycle 1 Day 1, and end of treatment (Up to approximately 46 months)Participants were in a supine or semi recumbent position (about 30 degrees of elevation) and rested for approximately 2 minutes before ECGs were recorded. Single 12-lead ECG was recorded using an ECG machine. Mean Heart rate were recorded.
Number Participant Who Used Concomitant MedicationsUp to approximately 46 monthsNumber of participants received concomitant medications were summarized.
Change From Baseline in Thyroid Function: Thyrotropin (TSH)Up to approximately 46 monthsBlood samples were collected for the assessment of Thyroid Function Thyrotropin (TSH).

Countries

Argentina, Brazil, Chile, France, Germany, Italy, Poland, Romania, South Korea, Spain, Taiwan, United States

Participant flow

Participants by arm

ArmCount
Dostarlimab + Chemotherapy
Participants with metastatic non-squamous non-small cell lung cancer (NSCLC) received dostarlimab and chemotherapy on Day 1 of every 21-day cycle beginning with Cycle 1. The order of administration of the investigational treatments was: dostarlimab first, immediately followed by pemetrexed, followed by cisplatin or carboplatin (Cycles 1 to 4 only). 500 milligram (mg) of dostarlimab was administered as a 30-minute intravenous (IV) infusion every three weeks (Q3W). 500 mg/meter\^2 (m\^2) pemetrexed was administered as a 10-minute IV infusion Q3W. 75 mg/m\^2 cisplatin was administered via IV infusion approximately 30 minutes after pemetrexed infusion for Q3W or carboplatin at area under the concentration-time curve (AUC) 5 mg/milliliter/minute Q3W immediately following the pemetrexed infusion.
121
Pembrolizumab + Chemotherapy
Participants with metastatic NSCLC received pembrolizumab and chemotherapy on Day 1 of every 21-day cycle beginning with Cycle 1. The order of administration of the investigational treatments was: pembrolizumab first, immediately followed by pemetrexed, followed by cisplatin or carboplatin (Cycles 1 to 4 only). 200 mg of pembrolizumab was administered as a 30-minute IV infusion Q3W. 500 mg/meter\^2 (m\^2) pemetrexed was administered as a 10-minute IV infusion Q3W. 75 mg/m\^2 cisplatin was administered via IV infusion approximately 30 minutes after pemetrexed infusion for Q3W or carboplatin at area under the concentration-time curve (AUC) 5 mg/milliliter/minute Q3W immediately following the pemetrexed infusion.
122
Total243

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyStudy terminated by sponsor3723
Overall StudyWithdrawal by Subject27

Baseline characteristics

CharacteristicDostarlimab + ChemotherapyPembrolizumab + ChemotherapyTotal
Age, Continuous63.4 YEARS
STANDARD_DEVIATION 9.43
65.4 YEARS
STANDARD_DEVIATION 8.51
64.4 YEARS
STANDARD_DEVIATION 9.02
Race/Ethnicity, Customized
American Indian or Alaska Native
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Asian
23 Participants21 Participants44 Participants
Race/Ethnicity, Customized
Black or African American
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
Multiple
3 Participants3 Participants6 Participants
Race/Ethnicity, Customized
Not Reported
2 Participants5 Participants7 Participants
Race/Ethnicity, Customized
Unknown
4 Participants6 Participants10 Participants
Race/Ethnicity, Customized
White
87 Participants84 Participants171 Participants
Sex: Female, Male
Female
36 Participants45 Participants81 Participants
Sex: Female, Male
Male
85 Participants77 Participants162 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
80 / 12191 / 122
other
Total, other adverse events
117 / 121114 / 122
serious
Total, serious adverse events
51 / 12161 / 122

Outcome results

Primary

Objective Response Rate (ORR)

ORR was defined as the percentage of participants who had a confirmed complete response (CR) or confirmed partial response (PR) as their best overall response (BOR) recorded from the date of randomization until disease progression or initiation of new anti-cancer therapy, whichever is earlier based on blinded independent central review (BICR) evaluation criteria in solid tumors (RECIST) version 1.1 (v1.1). CR was defined as disappearance of all target lesions. Any pathological lymph nodes must be \<10 millimeter in the short axis. PR was defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters (e.g., percent change from baseline).

Time frame: Up to approximately 20 months

Population: Intent-to-treat (ITT) population included all participants who were randomized.

ArmMeasureValue (NUMBER)
Dostarlimab + ChemotherapyObjective Response Rate (ORR)46 Percentage of Participants
Pembrolizumab + ChemotherapyObjective Response Rate (ORR)37 Percentage of Participants
80% CI: [1.46, 17.18]
Secondary

Change From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)

Blood samples were collected for the assessment Free Triiodothyronine (T3) and Free Thyroxine (T4).

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed

ArmMeasureGroupValue (MEAN)Dispersion
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to End of Treatment-0.64275 Picomoles per liter(pmol/L)Standard Deviation 2.184114
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 2 Day 1-0.12423 Picomoles per liter(pmol/L)Standard Deviation 2.071042
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 2 Day 1-0.35227 Picomoles per liter(pmol/L)Standard Deviation 4.257866
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 18 Day 1-0.37234 Picomoles per liter(pmol/L)Standard Deviation 2.414983
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 4 Day 10.04265 Picomoles per liter(pmol/L)Standard Deviation 6.245167
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 8 Day 10.11483 Picomoles per liter(pmol/L)Standard Deviation 2.738875
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 6 Day 1-0.10229 Picomoles per liter(pmol/L)Standard Deviation 5.41801
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 20 Day 1-0.37506 Picomoles per liter(pmol/L)Standard Deviation 2.495642
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 8 Day 1-1.02504 Picomoles per liter(pmol/L)Standard Deviation 6.168755
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, Baseline4.48026 Picomoles per liter(pmol/L)Standard Deviation 1.638746
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 10 Day 1-1.15108 Picomoles per liter(pmol/L)Standard Deviation 5.586383
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 22 Day 1-0.36400 Picomoles per liter(pmol/L)Standard Deviation 2.759103
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 12 Day 1-0.16670 Picomoles per liter(pmol/L)Standard Deviation 6.081753
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 10 Day 1-0.25993 Picomoles per liter(pmol/L)Standard Deviation 2.187046
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 14 Day 10.32703 Picomoles per liter(pmol/L)Standard Deviation 6.114475
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 24 Day 1-0.69144 Picomoles per liter(pmol/L)Standard Deviation 2.662922
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 16 Day 1-0.45337 Picomoles per liter(pmol/L)Standard Deviation 4.84044
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 4 Day 1-0.00187 Picomoles per liter(pmol/L)Standard Deviation 2.206972
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 18 Day 10.07645 Picomoles per liter(pmol/L)Standard Deviation 5.524789
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 26 Day 10.01392 Picomoles per liter(pmol/L)Standard Deviation 1.331466
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 20 Day 1-0.41084 Picomoles per liter(pmol/L)Standard Deviation 5.01327
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 12 Day 1-0.04347 Picomoles per liter(pmol/L)Standard Deviation 2.817465
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 22 Day 1-0.65956 Picomoles per liter(pmol/L)Standard Deviation 5.562802
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 28 Day 1-0.05502 Picomoles per liter(pmol/L)Standard Deviation 1.094085
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 24 Day 1-0.71092 Picomoles per liter(pmol/L)Standard Deviation 6.314352
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, Baseline16.33405 Picomoles per liter(pmol/L)Standard Deviation 4.294246
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 26 Day 1-0.89968 Picomoles per liter(pmol/L)Standard Deviation 5.2463
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 30 Day 10.11929 Picomoles per liter(pmol/L)Standard Deviation 1.151771
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 28 Day 1-0.89658 Picomoles per liter(pmol/L)Standard Deviation 5.48913
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 14 Day 1-0.61895 Picomoles per liter(pmol/L)Standard Deviation 2.558169
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 30 Day 1-1.46126 Picomoles per liter(pmol/L)Standard Deviation 4.811596
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 32 Day 10.54114 Picomoles per liter(pmol/L)Standard Deviation 1.043916
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 32 Day 1-1.81377 Picomoles per liter(pmol/L)Standard Deviation 5.474197
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 6 Day 1-0.15030 Picomoles per liter(pmol/L)Standard Deviation 2.128584
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 34 Day 1-1.52641 Picomoles per liter(pmol/L)Standard Deviation 6.379163
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 34 Day 10.62534 Picomoles per liter(pmol/L)Standard Deviation 0.957105
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to End of Treatment0.26660 Picomoles per liter(pmol/L)Standard Deviation 3.882315
Dostarlimab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 16 Day 1-0.44645 Picomoles per liter(pmol/L)Standard Deviation 2.274173
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to End of Treatment0.46964 Picomoles per liter(pmol/L)Standard Deviation 3.310829
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, Baseline4.48540 Picomoles per liter(pmol/L)Standard Deviation 1.066597
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 2 Day 1-0.24330 Picomoles per liter(pmol/L)Standard Deviation 1.026993
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 4 Day 1-0.11796 Picomoles per liter(pmol/L)Standard Deviation 1.41319
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 6 Day 1-0.37705 Picomoles per liter(pmol/L)Standard Deviation 1.117516
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 8 Day 1-0.43073 Picomoles per liter(pmol/L)Standard Deviation 1.123017
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 10 Day 1-0.23819 Picomoles per liter(pmol/L)Standard Deviation 1.273369
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 12 Day 15.82171 Picomoles per liter(pmol/L)Standard Deviation 34.328615
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 14 Day 1-0.33501 Picomoles per liter(pmol/L)Standard Deviation 1.597219
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 16 Day 1-0.36614 Picomoles per liter(pmol/L)Standard Deviation 1.108135
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 18 Day 1-0.12607 Picomoles per liter(pmol/L)Standard Deviation 1.337185
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 20 Day 1-0.26936 Picomoles per liter(pmol/L)Standard Deviation 1.237097
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 22 Day 1-0.17980 Picomoles per liter(pmol/L)Standard Deviation 1.018812
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 24 Day 1-0.18380 Picomoles per liter(pmol/L)Standard Deviation 0.736262
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 26 Day 1-0.39401 Picomoles per liter(pmol/L)Standard Deviation 0.669173
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 28 Day 1-0.28233 Picomoles per liter(pmol/L)Standard Deviation 0.880805
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 30 Day 1-0.19119 Picomoles per liter(pmol/L)Standard Deviation 0.911551
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 32 Day 10.03556 Picomoles per liter(pmol/L)Standard Deviation 1.067239
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to Cycle 34 Day 1-0.32236 Picomoles per liter(pmol/L)Standard Deviation 0.774334
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, Baseline15.93013 Picomoles per liter(pmol/L)Standard Deviation 3.436512
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 2 Day 10.21349 Picomoles per liter(pmol/L)Standard Deviation 3.541952
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 4 Day 10.08969 Picomoles per liter(pmol/L)Standard Deviation 4.015042
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 6 Day 1-0.58695 Picomoles per liter(pmol/L)Standard Deviation 3.404576
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 8 Day 10.27944 Picomoles per liter(pmol/L)Standard Deviation 3.877876
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 10 Day 10.08349 Picomoles per liter(pmol/L)Standard Deviation 3.613602
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 12 Day 14.71828 Picomoles per liter(pmol/L)Standard Deviation 27.489015
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 14 Day 1-0.45213 Picomoles per liter(pmol/L)Standard Deviation 4.196576
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 16 Day 10.24537 Picomoles per liter(pmol/L)Standard Deviation 3.472618
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 18 Day 10.47690 Picomoles per liter(pmol/L)Standard Deviation 1.984139
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 20 Day 10.37830 Picomoles per liter(pmol/L)Standard Deviation 3.413511
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 22 Day 10.45462 Picomoles per liter(pmol/L)Standard Deviation 2.84191
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 24 Day 10.31032 Picomoles per liter(pmol/L)Standard Deviation 2.653193
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 26 Day 10.23139 Picomoles per liter(pmol/L)Standard Deviation 3.443957
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 28 Day 11.10907 Picomoles per liter(pmol/L)Standard Deviation 2.849631
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 30 Day 1-0.21286 Picomoles per liter(pmol/L)Standard Deviation 3.203649
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 32 Day 10.13236 Picomoles per liter(pmol/L)Standard Deviation 3.519557
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Thyroxine, Free, CFB to Cycle 34 Day 10.45041 Picomoles per liter(pmol/L)Standard Deviation 2.435328
Pembrolizumab + ChemotherapyChange From Baseline (CFB) in Thyroid Functions: Free Triiodothyronine (T3) and Free Thyroxine (T4)Triiodothyronine, Free, CFB to End of Treatment-0.40528 Picomoles per liter(pmol/L)Standard Deviation 1.086922
Secondary

Change From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)

Blood samples were collected for the assessment of Triiodothyronine (T3) and Thyroxine (T4).

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed

ArmMeasureGroupValue (MEAN)Dispersion
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 4 Day 110.16002 Nanomoles per liter (nmol/L)Standard Deviation 47.746764
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Triiodothyronine, CFB to Cycle 2 Day 10.06903 Nanomoles per liter (nmol/L)Standard Deviation 0.172873
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Triiodothyronine, CFB to Cycle 4 Day 1-0.41878 Nanomoles per liter (nmol/L)Standard Deviation 0.353613
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Triiodothyronine, CFB to Cycle 6 Day 1-0.21476 Nanomoles per liter (nmol/L)
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, Baseline72.72912 Nanomoles per liter (nmol/L)Standard Deviation 46.845564
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 2 Day 116.06393 Nanomoles per liter (nmol/L)Standard Deviation 38.489073
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 6 Day 19.83083 Nanomoles per liter (nmol/L)Standard Deviation 30.658114
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 8 Day 121.85010 Nanomoles per liter (nmol/L)Standard Deviation 44.24277
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 10 Day 132.19186 Nanomoles per liter (nmol/L)Standard Deviation 41.441071
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 12 Day 123.45510 Nanomoles per liter (nmol/L)Standard Deviation 36.165686
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 14 Day 114.79794 Nanomoles per liter (nmol/L)Standard Deviation 35.614508
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 16 Day 121.23230 Nanomoles per liter (nmol/L)Standard Deviation 38.220665
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 18 Day 118.35801 Nanomoles per liter (nmol/L)Standard Deviation 31.436316
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 20 Day 126.94600 Nanomoles per liter (nmol/L)Standard Deviation 47.915257
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 22 Day 122.73866 Nanomoles per liter (nmol/L)Standard Deviation 34.20289
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 24 Day 124.31027 Nanomoles per liter (nmol/L)Standard Deviation 45.963345
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 26 Day 132.22436 Nanomoles per liter (nmol/L)Standard Deviation 62.122105
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 28 Day 121.13316 Nanomoles per liter (nmol/L)Standard Deviation 46.351292
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 30 Day 119.12904 Nanomoles per liter (nmol/L)Standard Deviation 53.351526
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 32 Day 119.99271 Nanomoles per liter (nmol/L)Standard Deviation 58.500079
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 34 Day 1-4.97280 Nanomoles per liter (nmol/L)Standard Deviation 8.622499
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to End of Treatment11.06954 Nanomoles per liter (nmol/L)Standard Deviation 35.792455
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Triiodothyronine, Baseline1.68399 Nanomoles per liter (nmol/L)Standard Deviation 0.308404
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 4 Day 112.22592 Nanomoles per liter (nmol/L)Standard Deviation 30.578995
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 34 Day 10.01300 Nanomoles per liter (nmol/L)
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 14 Day 10.64908 Nanomoles per liter (nmol/L)Standard Deviation 12.623292
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Triiodothyronine, Baseline1.48287 Nanomoles per liter (nmol/L)Standard Deviation 0.526037
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 30 Day 113.09008 Nanomoles per liter (nmol/L)Standard Deviation 11.862148
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Triiodothyronine, CFB to Cycle 2 Day 1-0.58292 Nanomoles per liter (nmol/L)
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 16 Day 17.86174 Nanomoles per liter (nmol/L)Standard Deviation 18.910608
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 26 Day 135.71425 Nanomoles per liter (nmol/L)Standard Deviation 12.285627
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 18 Day 17.37470 Nanomoles per liter (nmol/L)Standard Deviation 8.635752
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, Baseline85.29069 Nanomoles per liter (nmol/L)Standard Deviation 38.027652
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to End of Treatment4.67311 Nanomoles per liter (nmol/L)Standard Deviation 29.791225
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 2 Day 1-3.12689 Nanomoles per liter (nmol/L)Standard Deviation 11.5441
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 20 Day 116.06215 Nanomoles per liter (nmol/L)Standard Deviation 18.656008
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 6 Day 1-2.45916 Nanomoles per liter (nmol/L)Standard Deviation 27.497527
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 28 Day 120.55189 Nanomoles per liter (nmol/L)Standard Deviation 17.985775
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 8 Day 1-0.06812 Nanomoles per liter (nmol/L)Standard Deviation 24.146111
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 22 Day 118.57057 Nanomoles per liter (nmol/L)Standard Deviation 22.383758
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 10 Day 1-0.03002 Nanomoles per liter (nmol/L)Standard Deviation 16.413851
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 32 Day 116.73184 Nanomoles per liter (nmol/L)Standard Deviation 23.660023
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 12 Day 1-0.82919 Nanomoles per liter (nmol/L)Standard Deviation 9.539787
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Functions: Triiodothyronine (T3) and Thyroxine (T4)Thyroxine, CFB to Cycle 24 Day 123.08569 Nanomoles per liter (nmol/L)Standard Deviation 20.160509
Secondary

Change From Baseline in Thyroid Function: Thyrotropin (TSH)

Blood samples were collected for the assessment of Thyroid Function Thyrotropin (TSH).

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed

ArmMeasureGroupValue (MEAN)Dispersion
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 10 Day 13.233 Milli-international Units/ LiterStandard Deviation 12.1571
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 20 Day 11.685 Milli-international Units/ LiterStandard Deviation 5.3517
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 6 Day 11.123 Milli-international Units/ LiterStandard Deviation 8.4596
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 22 Day 11.428 Milli-international Units/ LiterStandard Deviation 5.9512
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 12 Day 12.448 Milli-international Units/ LiterStandard Deviation 9.859
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 24 Day 10.993 Milli-international Units/ LiterStandard Deviation 3.0372
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 4 Day 11.285 Milli-international Units/ LiterStandard Deviation 9.4283
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 26 Day 11.029 Milli-international Units/ LiterStandard Deviation 4.308
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 14 Day 11.282 Milli-international Units/ LiterStandard Deviation 4.2566
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 28 Day 11.204 Milli-international Units/ LiterStandard Deviation 3.4902
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 8 Day 12.454 Milli-international Units/ LiterStandard Deviation 9.7235
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 30 Day 11.615 Milli-international Units/ LiterStandard Deviation 5.4966
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 16 Day 11.551 Milli-international Units/ LiterStandard Deviation 4.7982
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 32 Day 11.824 Milli-international Units/ LiterStandard Deviation 4.9423
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 2 Day 10.225 Milli-international Units/ LiterStandard Deviation 3.7642
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 34 Day 11.081 Milli-international Units/ LiterStandard Deviation 2.4504
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 18 Day 11.190 Milli-international Units/ LiterStandard Deviation 4.1837
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to End of Treatment2.210 Milli-international Units/ LiterStandard Deviation 8.3867
Dostarlimab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)Baseline1.853 Milli-international Units/ LiterStandard Deviation 1.8354
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to End of Treatment1.303 Milli-international Units/ LiterStandard Deviation 9.359
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)Baseline1.904 Milli-international Units/ LiterStandard Deviation 1.7421
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 2 Day 1-0.497 Milli-international Units/ LiterStandard Deviation 1.7405
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 4 Day 1-0.622 Milli-international Units/ LiterStandard Deviation 1.7892
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 6 Day 12.006 Milli-international Units/ LiterStandard Deviation 21.0213
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 8 Day 12.648 Milli-international Units/ LiterStandard Deviation 22.9952
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 10 Day 11.986 Milli-international Units/ LiterStandard Deviation 12.8377
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 12 Day 11.138 Milli-international Units/ LiterStandard Deviation 10.978
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 14 Day 11.734 Milli-international Units/ LiterStandard Deviation 9.0539
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 16 Day 12.056 Milli-international Units/ LiterStandard Deviation 13.4532
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 18 Day 1-0.406 Milli-international Units/ LiterStandard Deviation 1.6364
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 20 Day 11.825 Milli-international Units/ LiterStandard Deviation 11.8029
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 22 Day 11.794 Milli-international Units/ LiterStandard Deviation 10.5658
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 24 Day 12.161 Milli-international Units/ LiterStandard Deviation 10.7015
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 26 Day 12.050 Milli-international Units/ LiterStandard Deviation 11.8067
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 28 Day 11.760 Milli-international Units/ LiterStandard Deviation 9.6622
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 30 Day 13.468 Milli-international Units/ LiterStandard Deviation 15.7231
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 32 Day 10.365 Milli-international Units/ LiterStandard Deviation 0.8151
Pembrolizumab + ChemotherapyChange From Baseline in Thyroid Function: Thyrotropin (TSH)CFB to Cycle 34 Day 1-0.189 Milli-international Units/ LiterStandard Deviation 1.5062
Secondary

Mean Change From Baseline in ECG Mean Heart Rate

Participants were in a supine or semi recumbent position (about 30 degrees of elevation) and rested for approximately 2 minutes before ECGs were recorded. Single 12-lead ECG was recorded using an ECG machine. Mean Heart rate were recorded.

Time frame: Baseline (Day 1), Cycle 1 Day 1, and end of treatment (Up to approximately 46 months)

Population: Safety population. Only those participants with data available at specified categories have been analyzed

ArmMeasureGroupValue (MEAN)Dispersion
Dostarlimab + ChemotherapyMean Change From Baseline in ECG Mean Heart RateBaseline79.8 beats/minStandard Deviation 15.17
Dostarlimab + ChemotherapyMean Change From Baseline in ECG Mean Heart RateCFB to Cycle 1 Day 10.0 beats/minStandard Deviation 13.04
Dostarlimab + ChemotherapyMean Change From Baseline in ECG Mean Heart RateCFB to End of Treatment1.5 beats/minStandard Deviation 14.71
Pembrolizumab + ChemotherapyMean Change From Baseline in ECG Mean Heart RateBaseline80.0 beats/minStandard Deviation 16.14
Pembrolizumab + ChemotherapyMean Change From Baseline in ECG Mean Heart RateCFB to Cycle 1 Day 13.3 beats/minStandard Deviation 13.65
Pembrolizumab + ChemotherapyMean Change From Baseline in ECG Mean Heart RateCFB to End of Treatment0.6 beats/minStandard Deviation 17.95
Secondary

Mean Change From Baseline in Electrocardiogram (ECG) Parameters

Participants were in a supine or semi recumbent position (about 30 degrees of elevation) and rested for approximately 2 minutes before ECGs were recorded. Single 12-lead ECG was recorded using an ECG machine. PR, QRS, QT, QTcF, and RR intervals were recorded

Time frame: Baseline (Day 1), Cycle 1 Day 1, and end of treatment (Up to approximately 46 months)

Population: Safety population. Only those participants with data available at specified categories have been analyzed

ArmMeasureGroupValue (MEAN)Dispersion
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersPR Interval, Baseline157.3 Millisecond (msec)Standard Deviation 26.87
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersPR Interval, CFB to Cycle 1 Day 1-6.0 Millisecond (msec)Standard Deviation 1.41
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersPR Interval, CFB to End of Treatment-5.3 Millisecond (msec)Standard Deviation 23.35
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQRS Duration, Baseline87.9 Millisecond (msec)Standard Deviation 14.85
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQRS Duration, CFB to Cycle 1 Day 110.0 Millisecond (msec)Standard Deviation 13.08
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQRS Duration, CFB to End of Treatment3.3 Millisecond (msec)Standard Deviation 17.14
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQT Interval, Baseline370.4 Millisecond (msec)Standard Deviation 35.29
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQT Interval, CFB to Cycle 1 Day 1-19.5 Millisecond (msec)Standard Deviation 48.23
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQT Interval, CFB to End of Treatment-1.7 Millisecond (msec)Standard Deviation 36.57
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcB Interval, Baseline459.3 Millisecond (msec)Standard Deviation 190.83
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcB Interval, CFB to Cycle 1 Day 1-309.0 Millisecond (msec)Standard Deviation 559.52
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcB Interval, CFB to End of Treatment-12.2 Millisecond (msec)Standard Deviation 176.21
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcF Interval, Baseline406.6 Millisecond (msec)Standard Deviation 50.6
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcF Interval, CFB to Cycle 1 Day 1-12.3 Millisecond (msec)Standard Deviation 48.19
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcF Interval, CFB to End of Treatment1.4 Millisecond (msec)Standard Deviation 65.82
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersRR Interval, Baseline741.3 Millisecond (msec)Standard Deviation 205.25
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersRR Interval, CFB to Cycle 1 Day 181.3 Millisecond (msec)Standard Deviation 256.2
Dostarlimab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersRR Interval, CFB to End of Treatment-3.3 Millisecond (msec)Standard Deviation 183.71
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcF Interval, CFB to Cycle 1 Day 1-4.7 Millisecond (msec)Standard Deviation 4.16
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersPR Interval, Baseline152.4 Millisecond (msec)Standard Deviation 25.54
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcB Interval, Baseline440.4 Millisecond (msec)Standard Deviation 121.2
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersPR Interval, CFB to Cycle 1 Day 18.7 Millisecond (msec)Standard Deviation 16.17
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersRR Interval, CFB to End of Treatment2.5 Millisecond (msec)Standard Deviation 193.04
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersPR Interval, CFB to End of Treatment0.2 Millisecond (msec)Standard Deviation 17.49
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcB Interval, CFB to Cycle 1 Day 1-31.7 Millisecond (msec)Standard Deviation 49.81
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQRS Duration, Baseline89.0 Millisecond (msec)Standard Deviation 14.91
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcF Interval, CFB to End of Treatment-10.0 Millisecond (msec)Standard Deviation 60
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQRS Duration, CFB to Cycle 1 Day 16.0 Millisecond (msec)Standard Deviation 14.14
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcB Interval, CFB to End of Treatment-3.1 Millisecond (msec)Standard Deviation 30.81
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQRS Duration, CFB to End of Treatment-1.1 Millisecond (msec)Standard Deviation 13.47
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersRR Interval, CFB to Cycle 1 Day 1-10.7 Millisecond (msec)Standard Deviation 81.05
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQT Interval, Baseline374.3 Millisecond (msec)Standard Deviation 38.05
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQTcF Interval, Baseline412.9 Millisecond (msec)Standard Deviation 48.99
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQT Interval, CFB to Cycle 1 Day 1-27.3 Millisecond (msec)Standard Deviation 57.98
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersRR Interval, Baseline766.5 Millisecond (msec)Standard Deviation 195.43
Pembrolizumab + ChemotherapyMean Change From Baseline in Electrocardiogram (ECG) ParametersQT Interval, CFB to End of Treatment-4.1 Millisecond (msec)Standard Deviation 38.07
Secondary

Number of Participants With Serious AEs

An SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly/birth defect or is an important medical event that may jeopardize the participant or may require medical or surgical intervention to prevent one of the above outcomes. SAEs are subset of AEs. AEs were coded using the MedDRA dictionary.

Time frame: Up to approximately 46 months

Population: Safety population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Serious AEs51 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Serious AEs61 Participants
Secondary

Number of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment Discontinuation

AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. A TEAE is an event that emerges during treatment having been absent pretreatment or worsens relative to the pretreatment state. Number of participants with TEAEs, TEAEs leading to death, and TEAEs leading to treatment discontinuation are presented. AEs were coded using the Medical Dictionary for Regulatory Affairs (MedDRA dictionary).

Time frame: Up to 46 months

Population: Safety population included all participants who received at least 1 dose of study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationTEAEs119 Participants
Dostarlimab + ChemotherapyNumber of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationTEAEs leading to death17 Participants
Dostarlimab + ChemotherapyNumber of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationTEAEs leading to treatment discontinuation35 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationTEAEs119 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationTEAEs leading to death12 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Treatment-emergent Adverse Event (TEAEs), TEAEs Leading to Death and TEAEs Leading to Treatment DiscontinuationTEAEs leading to treatment discontinuation46 Participants
Secondary

Number of Participants With Treatment Emergent Immune-related Adverse Event (irAE)

The irAEs are events which are severe or fatal and can occur in participants treated with monoclonal antibodies directed against immune checkpoints, including pembrolizumab and dostarlimab. While irAEs (eg, diarrhea/colitis, pneumonitis, nephritis, hypophysitis, adrenalitis, thyroiditis, severe skin reactions, uveitis, myocarditis, and hepatotoxicity) usually occur during treatment, symptoms can also manifest after discontinuation of treatment. AEs were coded using the MedDRA dictionary.

Time frame: Up to 46 months

Population: Safety population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Treatment Emergent Immune-related Adverse Event (irAE)38 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Treatment Emergent Immune-related Adverse Event (irAE)47 Participants
Secondary

Number of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to Baseline

Normal ranges were 30 to 110 units per liter (U/L) (Amylase); 4. 5 to 5. 6 milligram/deciliters (mg/dL) (Calcium); 96 to 100 milliequivalents (mEq)/ L (Chloride); 2. 5 to 4.5 mg/dL (Phosphate); 6 to 8.3 grams/L (protein); 6 to 24 millimoles/L (Urea) and 7 to 20 mg/dL (Urea nitrogen). Participants were counted in worst case category that their value changes to low, normal or no change \[NC\] or high), unless there is NC in their category. Participants whose laboratory value category was unchanged (e.g. High to High) or whose value became normal, were recorded in To Normal or No Change category. Participants were counted twice if participant had values that changed To Low and To High, so percentages may not add to 100%.

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineAmylase, To Low8 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineAmylase, To Normal or No Change76 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineAmylase, To High34 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineCalcium, To Low42 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineCalcium, To Normal or No Change60 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineCalcium, To High25 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineChloride, To Low34 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineChloride, To Normal or No Change65 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineChloride, To High22 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselinePhosphate, To Low32 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselinePhosphate, To Normal or No Change64 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselinePhosphate, To High26 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineProtein, To Low52 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineProtein, To Normal or No Change55 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineProtein, To High12 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea, To Low7 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea, To Normal or No Change43 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea, To High41 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea Nitrogen, To Low5 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea Nitrogen, To Normal or No Change26 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea Nitrogen, To High20 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselinePhosphate, To Normal or No Change70 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineAmylase, To Low11 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea Nitrogen, To Low6 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineAmylase, To Normal or No Change76 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselinePhosphate, To High28 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineAmylase, To High30 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea, To Normal or No Change45 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineCalcium, To Low39 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineProtein, To Low54 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineCalcium, To Normal or No Change65 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea Nitrogen, To High13 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineCalcium, To High16 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineProtein, To Normal or No Change56 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineChloride, To Low26 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea, To High37 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineChloride, To Normal or No Change69 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineProtein, To High6 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineChloride, To High25 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea Nitrogen, To Normal or No Change17 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselinePhosphate, To Low22 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Clinical Chemistry Results Relative to Normal Range Post-Baseline Relative to BaselineUrea, To Low11 Participants
Secondary

Number of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)

DBP and SBP were measured in a semi-supine position after 5 minutes rest. Grades were derived based on numeric criteria as defined in Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0. Systolic Blood Pressure (SBP): Grade 0 (\<120 Millimetre of mercury (mmHg)), Grade 1 (120-139 mmHg), Grade 2 (140-159 mmHg), Grade 3 (\>=160 mmHg). Diastolic Blood Pressure (DBP): Grade 0 (\<80 mmHg), Grade 1 (80-89 mmHg), Grade 2 (90-99 mmHg), Grade 3 (\>=100 mmHg). An increase is defined as an increase in the CTCAE grade relative to the Baseline grade. Only those participants with grade increase have been presented. Participants with missing Baseline values were assumed to have a Baseline value of G0.

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)DBP, Increase to Grade 136 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)DBP, Increase to Grade 235 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)DBP, Increase to Grade 36 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)SBP, Increase to Grade 124 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)SBP, Increase to Grade 234 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)SBP, Increase to Grade 38 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)SBP, Increase to Grade 224 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)DBP, Increase to Grade 127 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)SBP, Increase to Grade 118 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)DBP, Increase to Grade 225 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)SBP, Increase to Grade 311 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-case Grade Change From Baseline in Diastolic Blood Pressure (DBP) and Systolic Blood Pressure (SBP)DBP, Increase to Grade 37 Participants
Secondary

Number of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to Baseline

Normal ranges were 0.01 to 0.3\*10\^9 cells/L (basophils); 41 to 50 percentage of red blood cells (RBC) in blood (hematocrit); 80-100 femtoliters (fl) (erythrocytes \[referred as Ery\] mean corpuscular volume (EMCV)); 2 to 8 percentage of WBC (monocytes); and Women: 4.2 to 5.4 million RBC/ microliter (mcL) of blood and Men: 4.7 to 6.1 million RBC/ mcL (erythrocytes). Participants were counted in worst case category that their value changes to low, normal or no change \[NC\] or high), unless there is NC in their category. Participants whose laboratory value category was unchanged (e.g. High to High) or whose value became normal, were recorded in To Normal or No Change category. Participants were counted twice if participant had values that changed To Low and To High, so percentages may not add to 100%.

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineHematocrit, To Normal or No Change43 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineEMCV, To High57 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineBasophils, To Normal or No Change72 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineMonocytes, To Low23 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineHematocrit, To High3 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineMonocytes, To Normal or No Change41 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineHematocrit, To Low73 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineMonocytes, To High46 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineEMCV, To Low6 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineErythrocytes, To Low73 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineBasophils, To High19 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineErythrocytes, To Normal or No Change44 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineEMCV, To Normal or No Change59 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineErythrocytes, To High2 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineBasophils, To Low12 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineErythrocytes, To High6 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineBasophils, To Low9 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineBasophils, To Normal or No Change75 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineBasophils, To High19 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineHematocrit, To Low64 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineHematocrit, To Normal or No Change50 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineHematocrit, To High1 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineEMCV, To Low11 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineEMCV, To Normal or No Change54 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineEMCV, To High54 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineMonocytes, To Low21 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineMonocytes, To Normal or No Change42 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineMonocytes, To High43 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineErythrocytes, To Low79 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Hematology Results Relative to Normal Range Post-Baseline Relative to BaselineErythrocytes, To Normal or No Change34 Participants
Secondary

Number of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status

Performance status was assessed using the ECOG scale (Grade 0-5). Grades: 0: Fully active, able to carry on all pre-disease performance without restriction. 1: Restricted in physically strenuous activity but ambulatory, able to carry out work of light nature. 2: Ambulatory, capable of self-care, unable to carry out work activities. Up and about more than 50% waking hours. 3: Capable of limited self-care, confined to bed/chair more than 50% waking hours. 4: Completely disabled. Cannot carry on any self-care. Totally confined to bed/chair. 5: Dead.

Time frame: Up to approximately 46 months

Population: Safety population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status170 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status34 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status224 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status4-55 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status015 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status4-54 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status020 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status157 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status220 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst-Case Post-Baseline Eastern Cooperative Oncology Group (ECOG) Performance Status314 Participants
Secondary

Number of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)

Normal range of Pulse Rate was 60 to 100 beats/min. Participants were counted in worst case category that their value changes to low, to within \[w/in\] Range or No Change \[NC\] or high, unless there is NC in their category. Participants whose laboratory value category was unchanged (e.g. High to High) or whose value became normal, were recorded in To Normal or No Change category.

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)To Low5 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)To w/in Range or No Change105 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)To High7 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)To Low3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)To w/in Range or No Change103 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Pulse Rate Results Post-Baseline Relative to Baseline Based on Potential Clinical Importance (PCI)To High9 Participants
Secondary

Number of Participants With Worst Case Urinalysis Results Post-Baseline Relative to Baseline

Urine samples were collected to assess urine Bilirubin, glucose, ketones, Leukocyte Esterase, Nitrite, occult blood and Protein using dipstick method. The dipstick test gave results in a semi-quantitative manner, and results for urinalysis parameters were recorded as No Change/Decreased, Increase to TRACE, Increase to +, Increase to ++, Increase to +++ and Increase to ++++. Baseline (Day 1) was defined as the most recent, non-missing value prior to or on the first study treatment dose date.

Time frame: Up to approximately 46 months

Population: Safety population. Only those participants with data available at specified categories have been analyzed

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to ++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to +3 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to +++1 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to ++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to +++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to +++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, No Change/Decreased79 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to ++++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to ++++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, No Change/Decreased77 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to ++++2 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to TRACE6 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, No Change/Decreased75 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to +6 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to +8 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to ++3 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to TRACE1 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to +++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, No Change/Decreased81 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to ++++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to +11 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, No Change/Decreased71 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to ++++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to TRACE7 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to ++2 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to +14 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to TRACE4 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to ++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to +++1 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to +++1 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to ++1 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to ++++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to ++++1 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, No Change/Decreased86 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to +8 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to TRACE0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, No Change/Decreased90 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to +4 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to TRACE2 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to ++0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to TRACE0 Participants
Dostarlimab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to +++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, No Change/Decreased57 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to ++++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, No Change/Decreased57 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to TRACE1 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to +8 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to ++2 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to +++2 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineGlucose, Increase to ++++1 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, No Change/Decreased58 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to TRACE3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to +7 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to ++2 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to +++1 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineKetones, Increase to ++++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, No Change/Decreased55 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to TRACE2 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to +10 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to ++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to +++3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineLeukocyte Esterase, Increase to ++++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, No Change/Decreased70 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to TRACE0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to +1 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to ++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to +++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineNitrite, Increase to ++++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to +++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to TRACE3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to +8 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to ++3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to +++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineOccult Blood, Increase to ++++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, No Change/Decreased53 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to TRACE3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to +10 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to ++3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to +++1 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineProtein, Increase to ++++0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, No Change/Decreased66 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to TRACE0 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to +3 Participants
Pembrolizumab + ChemotherapyNumber of Participants With Worst Case Urinalysis Results Post-Baseline Relative to BaselineBilirubin, Increase to ++0 Participants
Secondary

Number Participant Who Used Concomitant Medications

Number of participants received concomitant medications were summarized.

Time frame: Up to approximately 46 months

Population: Safety population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dostarlimab + ChemotherapyNumber Participant Who Used Concomitant Medications121 Participants
Pembrolizumab + ChemotherapyNumber Participant Who Used Concomitant Medications122 Participants
Secondary

Overall Survival (OS)

OS was defined as the time from the date of randomization to the date of death by any cause.

Time frame: Up to approximately 46 months

Population: Intent-to-treat (ITT) population

ArmMeasureValue (MEDIAN)
Dostarlimab + ChemotherapyOverall Survival (OS)20.2 Months
Pembrolizumab + ChemotherapyOverall Survival (OS)15.9 Months
Secondary

Progression-free Survival (PFS)

PFS was defined as the time from the date of randomization to the date of disease progression (PD) or death by any cause, whichever occurs first. PFS was evaluated using Response Evaluation Criteria in Solid Tumors Criteria (RECIST) version 1.1 based on Investigator assessment. PD is defined as at least a 20% increase in the sum of the diameters of target lesions, taking as a reference, the smallest sum of diameters recorded since the treatment started (e.g., percent change from nadir, where nadir is defined as the smallest sum of diameters recorded since treatment start).

Time frame: Up to approximately 46 months

Population: Intent-to-treat (ITT) population

ArmMeasureValue (MEDIAN)
Dostarlimab + ChemotherapyProgression-free Survival (PFS)8.8 Months
Pembrolizumab + ChemotherapyProgression-free Survival (PFS)6.8 Months

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026