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ASP3772

Phase 1

Pneumococcal Disease | Monoclonal antibody | Infectious Disease |GSK plc|Trials Updated: Dec 21, 2023

ASP3772 development status

Highest phase Phase 1
Registered trials 2 across 2 sponsors since Jan 2019

ASP3772 target and mechanism

ModalityMonoclonal antibody

Also known as ASP3772 (subcutaneous)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment705

FDA Designations

No designations recorded

ASP3772 clinical trials

ASP3772 · 2 trials · 3 indications

Phase 1 2
NCT04525599A Study to Assess the Safety, Tolerability and Immunogenicity of ASP3772, a Pneumococcal Vaccine, in Toddlers 12 to 15 Months of Age in Comparison to an Active ComparatorHealthy Volunteers
COMPLETED75 Analytics
NCT03803202A Single Ascending Dose Study in Adults (Stage 1) and Single Ascending Dose-Finding Study (Stage 2) in Elderly Subjects With ASP3772, A Pneumococcal VaccinePneumonia, Bacterial
COMPLETED630 Analytics
PHASE1COMPLETED
A Study to Assess the Safety, Tolerability and Immunogenicity of ASP3772, a Pneumococcal Vaccine, in Toddlers 12 to 15 Months of Age in Comparison to an Active Comparator
Healthy VolunteersUnlock trial analytics
PHASE1COMPLETED
A Single Ascending Dose Study in Adults (Stage 1) and Single Ascending Dose-Finding Study (Stage 2) in Elderly Subjects With ASP3772, A Pneumococcal Vaccine
Pneumonia, BacterialUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Treatment Emergent Adverse Events (TEAEs)
Up to Day 30

A TEAE is defined as an adverse event (AE) observed after study vaccination and up to 30 days post-vaccination. A vaccine-related TEAE is defined as any TEAE with a causal relationship assessed as "yes" by the investigator.

Number of Participants With Body Temperature Abnormalities and/or Adverse Events
Up to Day 30

Number of participants with potentially clinically significant body temperature abnormalities.

Reactogenicity Assessed by Number of Solicited Local Reactions
Up to Day 7

Local reactions are tenderness, movement restriction, redness/erythema and swelling and induration. Local reactogenicity will be evaluated at approximately 30 to 60 minutes post-dose by study site personnel and recorded in an electronic diary device by the participant's parent/legal guardian while at the study site on day 1. The participant's parent/legal guardian will observe reactogenicity and tolerability from day 2 through day 7, and record observed events daily in the electronic diary device. Grades range from 1 (mild) to 4 (potentially life-threatening).

Reactogenicity assessed by Number of Solicited Systemic Reactions
Up to Day 7

Systemic reactions are vomiting, diarrhea, fever, irritability, decrease of appetite and increase or decrease in sleep. Body temperature will be assessed pre-dose and approximately 30 to 60 minutes post-dose. The participant's parent/legal guardian will be asked to observe the systemic reactogenicity symptoms from day 2 through day 7 and record observed events daily in the electronic diary device. Grades range from 1 (mild) to 4 (potentially life-threatening).

Number of Participants With Treatment Emergent Adverse Events (TEAEs), [Stage 1, Group 1]
From Day 1, Up to Day 180

An AE is any untoward medical occurrence in a participant administered a study vaccine, and which does not necessarily have to have a causal relationship with this vaccination. A TEAE is defined as any AE with onset within 30 days from study vaccine administration. Medically attended TEAEs (MAAEs) are AEs for which the participant has received medical attention by medical personnel, or in an emergency room, or which led to hospitalization. A new-onset chronic disease TEAEs (NOCD) is defined as a MAAE which a) was absent at baseline; b) has not resolved at the follow-up telephone call; c) requires continuous medical care or attention. Potentially Immune Mediated medical condition TEAEs (PIMMCs) are defined as any AEs of autoimmune or auto inflammatory nature.

Number of Participants With TEAEs, [Stage 2, Group 2]
From Day 1, Up to Day 180

An AE is any untoward medical occurrence in a participant administered a study vaccine, and which does not necessarily have to have a causal relationship with this vaccination. A TEAE is defined as any AE with onset within 30 days from study vaccine administration. Medically attended TEAEs (MAAEs) are AEs for which the participant has received medical attention by medical personnel, or in an emergency room, or which led to hospitalization. A new-onset chronic disease TEAEs (NOCD) is defined as a MAAE which a) was absent at baseline; b) has not resolved at the follow-up telephone call; c) requires continuous medical care or attention. Potentially Immune Mediated medical condition TEAEs (PIMMCs) are defined as any AEs of autoimmune or auto inflammatory nature. As specified in protocol, data was planned to be analyzed for PCV13 pooled comparator from each group given PCV13 to compare with each ASP3772 dose.

Number of Participants With TEAEs, [Stage 2, Group 3]
From Day 1, Up to Day 30

An AE is any untoward medical occurrence in a participant administered a study vaccine, and which does not necessarily have to have a causal relationship with this vaccination. A TEAE is defined as any AE with onset within 30 days from study vaccine administration. Medically attended TEAEs (MAAEs) are AEs for which the participant has received medical attention by medical personnel, or in an emergency room, or which led to hospitalization. A new-onset chronic disease TEAEs (NOCD) is defined as a MAAE which a) was absent at baseline; b) has not resolved at the follow-up telephone call; c) requires continuous medical care or attention. Potentially Immune Mediated medical condition TEAEs (PIMMCs) are defined as any AEs of autoimmune or auto inflammatory nature.

Number of Participants With Clinically Significant Abnormalities in Vital Signs
During first hour post vaccination (vaccine administered at Day 1)

Vital signs parameters included blood pressure (hypotension and hypertension), pulse rate (tachycardia and bradycardia), body temperature and respiratory rate. Any change in vital sign abnormalities that was clinically significant in the medical and scientific judgment of the investigator and not related to an underlying disease was reported as an unsolicited adverse event (AE). Any clinically significant abnormality associated with underlying disease does not require reporting as an (S)AE unless judged by the investigator to be more severe than expected for the participant's condition.

Number of Participants With Potentially Clinically Significant Laboratory Values
Up to Day 30

Clinical laboratory testing included hematology, clinical chemistry, or urinalysis. Any abnormal laboratory test result (e.g., in hematology, clinical chemistry, or urinalysis) that was clinically significant in the medical and scientific judgment of the investigator and not related to an underlying disease was reported as an unsolicited adverse event (AE). Laboratory tests of clinical interest included total bilirubin ≥ 2x ULN and Alkaline phosphatase \> 1.5 × upper limit of normal. Study Investigator's interest was to assess only potentially clinically significant values.

Number of Participants With Potentially Clinically Significant Physical Examination Values
Up to Day 30

A physical examination consists of an examination of general appearance, eyes, nose throat, neck (including thyroid), lymph nodes, chest, lungs, cardiovascular, abdomen, skin, extremities, musculoskeletal and neurological system including mental status. Any abnormal test result that was clinically significant in the medical and scientific judgment of the investigator and not related to an underlying disease was reported as an unsolicited adverse event (AE). Study Investigator's interest was to assess only potentially clinically significant values.

Number of Participants With Clinically Significant Abnormal Electrocardiogram (ECG), [Stage 1, Group 1] and [Stage 2, Group 2]
Day - 28 to Day -1 (28 days prior to study vaccination)

The Investigator assessed standard 12-lead ECG recordings for the purposes of safety assessment and participant management. Any clinically significant abnormality, as determined by the investigator's medical and scientific judgment and unrelated to underlying disease, should be reported as an unsolicited (S)AE. Any clinically significant abnormality associated with underlying disease does not require reporting as an (S)AE unless judged by the investigator to be more severe than expected for the participant's condition.

Number of Participants With Clinically Significant Abnormal Electrocardiogram (ECG), [Stage 2, Group 3]
Day - 28 to Day -1 (28 days prior to study vaccination)

The Investigator assessed standard 12-lead ECG recordings for the purposes of safety assessment and participant management. Any clinically significant abnormality, as determined by the investigator's medical and scientific judgment and unrelated to underlying disease, should be reported as an unsolicited (S)AE. Any clinically significant abnormality associated with underlying disease does not require reporting as an (S)AE unless judged by the investigator to be more severe than expected for the participant's condition.

Reactogenicity Assessed by Number of Participants With Solicited Local Reactions, [Stage 1, Group 1]
Up to 7 Day post Vaccination (vaccine administered at Day 1)

Local reactions include pain, tenderness, redness/erythema, swelling and induration.

Reactogenicity Assessed by Number of Solicited Local Reactions, [Stage 2, Group 2 and Group 3]
Up to 7 Day post Vaccination (vaccine administered at Day 1)

Assessed solicited local reactions were pain, tenderness, redness/erythema, swelling, induration, itching at injection site and pruritus at injection site.

Reactogenicity Assessed by Number of Solicited Systemic Reactions, [Stage 1, Group 1]
Up to 7 Day post Vaccination (vaccine administered at Day 1)

Assessed systemic reactions were nausea/vomiting, diarrhea, headache, fever, fatigue and muscle discomfort or pain/myalgia.

Reactogenicity Assessed by Number of Solicited Systemic Reactions [Stage 2, Group 2 and Group 3]
Up to 7 Day post Vaccination (vaccine administered at Day 1)

Assessed systemic reactions were nausea/vomiting, diarrhea, headache, fever, fatigue and muscle discomfort or pain/myalgia.

Secondary Endpoints

Proportion of Participants Achieving a Serotype-specific Anticapsular Polysaccharide Immunoglobulin G (PS IgG) Concentration of ≥ 0.35 µg/mL for ASP3772
Up to 30 days
Proportion of Participants Achieving a Serotype-specific Anticapsular PS IgG Concentration of ≥ 0.35 µg/mL for PCV13
Up to 30 days
Proportion of Participants Achieving a Serotype-specific Opsonophagocytic Activity (OPA) Antibody Titer ≥ 1:8 for ASP3772
Up to 30 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Group 1, ASP3772 Low DoseEXPERIMENTALParticipants will receive a single intramuscular injection of ASP3772 administered on Day 1 at a low-dose level.
Group 1, PCV13 ComparatorACTIVE_COMPARATORParticipants will receive a single intramuscular injection of the approved dose of PCV13 on Day 1.
Group 2, ASP3772 Medium DoseEXPERIMENTALParticipants will receive a single intramuscular injection of ASP3772 administered on Day 1 at a medium-dose level.
Group 2, PCV13 ComparatorACTIVE_COMPARATORParticipants will receive a single intramuscular injection of the approved dose of PCV13 on Day 1.
Group 3, ASP3772 High DoseEXPERIMENTALParticipants will receive a single intramuscular injection of ASP3772 administered on Day 1 at a high-dose level.
Group 3, PCV13 ComparatorACTIVE_COMPARATORParticipants will receive a single intramuscular injection of the approved dose of PCV13 on Day 1.
Stage 1, Group 1 Adults, ASP3772 Low doseEXPERIMENTALHealthy adults aged 18 to 64 years received a low dose \[1 microgram (μg)\] of ASP3772 intramuscularly on Day 1.
Stage 1, Group 1 Adults, ASP3772 Medium doseEXPERIMENTALHealthy adults aged 18 to 64 years received a medium dose (2 μg) of ASP3772 intramuscularly on Day 1.
Stage 1, Group 1 Adults, ASP3772 High doseEXPERIMENTALHealthy adults aged 18 to 64 years received a high dose (5 μg) of ASP3772 intramuscularly on Day 1.
Stage 1, Group 1, PCV13 Pooled ComparatorACTIVE_COMPARATORHealthy adults aged 18 to 64 years received a single dose of PCV13 0.5 milliliter (mL) intramuscularly on Day 1. Data from participants in each group given PCV13 were pooled for comparison with each ASP3772 dose group (ASP3772 low dose, ASP3772 medium dose and ASP3772 high dose).
Stage 2, Group 2 Older Adults, ASP3772 Low doseEXPERIMENTALHealthy older adults aged 65 to 85 years received a low dose (1 μg) of ASP3772 intramuscularly on Day 1.
Stage 2, Group 2 Older Adults, ASP3772 Medium doseEXPERIMENTALHealthy older adults aged 65 to 85 years received a medium dose (2 μg) of ASP3772 intramuscularly on Day 1.
Stage 2, Group 2 Older Adults, ASP3772 High doseEXPERIMENTALHealthy older adults aged 65 to 85 years received a high dose (5 μg) of ASP3772 intramuscularly on Day 1.
Stage 2, Group 2, PCV13 Pooled ComparatorACTIVE_COMPARATOROlder adults aged 65 to 85 years received a single dose of PCV13 0.5 mL intramuscularly on Day 1. Data from participants in each group given PCV13 were pooled for comparison with each ASP3772 dose group (ASP3772 low dose, ASP3772 medium dose and ASP3772 high dose).
Stage 2, Group 3, PPSV23 ComparatorACTIVE_COMPARATOROlder adults aged 65 to 85 years who had been previously vaccinated with PCV13, were enrolled and received a single of dose PPSV23 on Day 1.

Interventions

NameTypeDescription
ASP3772BIOLOGICALIntramuscular (IM) injection
PCV13BIOLOGICALIntramuscular injection
PPSV23BIOLOGICALParticipants received a single dose of PPSV23 intramuscularly.
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Eligibility Criteria

Age Range12 Months to 15 Months
SexALL
Healthy VolunteersYes
Study Sites17

Inclusion Criteria: * Subject is a healthy toddler who has previously completed a 3-dose infant series of PCV13 with the last vaccination greater than 2 months prior to study vaccination. * Subject is afebrile within the last 48 hours (temperature measured orally is \< 100 °F \[37.8°C\]; measured r...

Countries:United States
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Frequently asked questions about ASP3772

What is ASP3772?

ASP3772 is an investigational monoclonal antibody being developed by GSK plc for the prevention of pneumococcal disease, including bacterial pneumonia. It is in Phase 1 clinical development and has been studied in healthy adult and toddler volunteers. ASP3772 is designed as a subcutaneous product.

What is ASP3772 used for in pneumococcal disease?

ASP3772 is being studied for the prevention of pneumococcal disease and bacterial pneumonia. Clinical trials have enrolled healthy volunteers, including adults 18 years and older and toddlers 12 to 15 months of age, to assess safety, tolerability, and immunogenicity against pneumococcal infection.

Who makes ASP3772?

ASP3772 is developed by GSK plc, which trades under the ticker GSK. GSK is the sponsor of the clinical program evaluating the monoclonal antibody in healthy volunteers for the prevention of pneumococcal disease and bacterial pneumonia.

What phase is ASP3772 in?

ASP3772 is in Phase 1 clinical development. It is an investigational monoclonal antibody and has not been approved by the FDA. The completed Phase 1 studies evaluated safety, tolerability, and immunogenicity in healthy adult and toddler volunteers.

What clinical trials is ASP3772 in?

ASP3772 has been evaluated in two completed Phase 1 trials. NCT03803202 was a single ascending dose study in adults and a dose-finding study in elderly subjects, enrolling 630 participants. NCT04525599 assessed safety, tolerability, and immunogenicity in toddlers 12 to 15 months of age compared with an active comparator, enrolling 75 participants.

Is ASP3772 the same as ASP3772 (subcutaneous)?

Yes, ASP3772 (subcutaneous) refers to the same investigational monoclonal antibody as ASP3772. The parenthetical describes the subcutaneous route of administration. Both names refer to the GSK plc product being studied in Phase 1 trials for pneumococcal disease and bacterial pneumonia.