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Completed

NCT Number: NCT03760146

Trial to Evaluate the Safety and Immunogenicity of a 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-naïve Adults

A Phase 3, Randomized, Double-Blind Trial to Evaluate the Safety and Immunogenicity of a 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-Naïve Adults

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Key information

Conditions

Pneumococcal Disease Bacterial Infections Bacterial Infections and Mycoses Gram-Positive Bacterial Infections Infections Pneumococcal Infections Streptococcal Infections

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Ladulaas Kliniska Studier, Borås, Sweden

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male or female adults >/= 18 years of age (from the 18th birthday) at enrollment and older.
  • Adults determined by clinical assessment, including medical history and clinical judgment, to be eligible for the study, including adults with preexisting stable disease, defined as disease not requiring significant change in therapy in the previous 6 weeks or hospitalization for worsening disease within 12 weeks before receipt of investigational product.
  • Negative urine pregnancy test at Visit1 for all subjects who are of childbearing potential.

Exclusion criteria

  • Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt through study participation.
  • History of microbiologically proven invasive disease caused by S pneumoniae.
  • Serious chronic disorder including metastatic malignancy, severe chronic obstructive pulmonary disease (COPD) requiring supplemental oxygen, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the subject from participating in the study.
  • Pregnant female subjects or breastfeeding female subjects.

Treatment and study plan

20vPnC

Biological

20vPnC

13vPnC

Biological

Pneumococcal conjugate vaccine

PPSV23

Biological

Pneumococcal polysaccharide vaccine

Other names: Pneumovax 23

Saline

Other

Placebo

Primary outcomes

  1. Percentage of Participants With Local Reactions Within 10 Days After Vaccination in All Cohorts

    Time frame: Within 10 days after 20vPnC or 13vPnC

    Local reactions were recorded using an electronic diary. Local reactions included redness, swelling and pain at the injection site. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 centimeter (cm). Redness and swelling were graded as mild (greater than [>] 2.0 to 5.0 cm), moderate (>5.0 to 10.0 cm) and severe (>10.0 cm). Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), and severe (prevented daily activity).

  2. Percentage of Participants With Systemic Events Within 7 Days After Vaccination in All Cohorts

    Time frame: Within 7 days after 20vPnC or 13vPnC

    Systemic events fever, fatigue, headache, muscle pain and joint pain were recorded by using an electronic diary. Fever was defined as greater than or equal to (>=) 38.0 degree Celsius (C) and categorized to >=38.0 to 38.4 degree C, >38.4 to 38.9 degree C, >38.9 to 40.0 degree C and >40.0 degree C. Fatigue, headache, muscle pain and joint pain were graded as mild (did not interfere with activity), moderate (some interference with activity) and severe (prevented daily routine activity).

  3. Percentage of Participants With Adverse Events (AEs) Within 1 Month After Vaccination in All Cohorts

    Time frame: Within 1 month after 20vPnC or 13vPnC

    An AE was any untoward medical occurrence in study participants who received study vaccine without regard to possibility of causal relationship with the treatment.

  4. Percentage of Participants With Serious Adverse Events (SAEs) Within 6 Months After Vaccination in All Cohorts

    Time frame: Within 6 months after 20vPnC or 13vPnC

    An SAE was any untoward medical occurrence at any dose that results in death; is life-threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); results in congenital anomaly/birth defect or that is considered to be an important medical event.

  5. Percentage of Participants With Newly Diagnosed Chronic Medical Conditions (NDCMCs) Within 6 Months After Vaccination in All Cohorts

    Time frame: Within 6 months after 20vPnC or 13vPnC

    An NDCMC was defined as a disease or medical condition, not previously identified, that was expected to be persistent or was otherwise long-lasting in its effects.

  6. Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for the 13 Matched Serotypes at 1 Month After Vaccination 1 (20vPnC or 13vPnC) in Cohort 1: Evaluable 13-Matched Immunogenicity Population

    Time frame: 1 month after Vaccination 1

    OPA GMTs were determined for serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F. OPA titer was expressed as reciprocal of the highest serum dilution. OPA geometric mean and 2-sided 95% CIs were calculated.

  7. Pneumococcal OPA GMTs for the 7 Additional Serotypes at 1 Month After Vaccination 1 (20vPnC) or 1 Month After Vaccination 2 (PPSV23) in Cohort 1: Evaluable 7-Additional Immunogenicity Population (E7-AIP)

    Time frame: 1 month after Vaccination 1 in "Cohort 1: 20vPnC/Saline"; 1 month after Vaccination 2 in "Cohort 1: 13vPnC/PPSV23"

    OPA GMTs were determined for serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. OPA titer was expressed as reciprocal of the highest serum dilution. OPA geometric mean and 2-sided 95% CIs were calculated.

Secondary outcomes

  1. Pneumococcal OPA GMTs for the 20 Vaccines Serotypes at 1 Month After 20vPnC Vaccination in Cohort 2, 50 Through 59 Years of Age and Cohort 1, Only 60 Through 64 Years of Age: Evaluable-20 Immunogenicity Population

    Time frame: 1 month after vaccination

    OPA GMTs were determined for serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F. OPA titer was expressed as reciprocal of the highest serum dilution. OPA geometric mean and 2-sided 95% CIs were calculated.

  2. Pneumococcal OPA GMTs for the 20 Vaccines Serotypes at 1 Month After 20vPnC Vaccination in Cohort 3, 18 Through 49 Years and Cohort 1, Only 60 Through 64 Years of Age: Evaluable-20 Immunogenicity Population

    Time frame: 1 month after vaccination

    OPA GMTs were determined for serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F. OPA titer was expressed as reciprocal of the highest serum dilution. OPA geometric mean and 2-sided 95% CIs were calculated.

  3. Pneumococcal OPA Geometric Mean Fold Rises (GMFRs) for the 13 Matched Serotypes From Before Vaccination 1 to 1 Month After Vaccination 1 (20vPnC or 13vPnC) in Cohort 1: Evaluable 13-Matched Immunogenicity Population

    Time frame: Before Vaccination 1 to 1 month after Vaccination 1

    OPA GMFR is the ratio of OPA GMT, 1 month after vaccination to before vaccination OPA GMT. OPA GMFRs from before to 1 month after vaccination were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F.

  4. Pneumococcal OPA GMFRs for the Additional 7 Serotypes From Before Vaccination 1 to 1 Month After Vaccination 1 (20vPnC) or From Before Vaccination 1 to 1 Month After Vaccination 2 (PPSV23) in Cohort 1: Evaluable 7-Additional Immunogenicity Population

    Time frame: From before Vaccination 1 to 1 month after Vaccination 1 in "Cohort 1: 20vPnC/Saline" or From before Vaccination 1 to 1 month after Vaccination 2 in "Cohort 1: 13vPnC/PPSV23"

    OPA GMFR is the ratio of OPA GMT, 1 month after vaccination to before vaccination OPA GMT. OPA GMFRs from before to 1 month after vaccination were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 8, 10A, 11A, 12F, 15B, 22F and 33F.

  5. Pneumococcal OPA GMFRs for the 20 Vaccines Serotypes From Before Vaccination to 1 Month After Vaccination in Cohort 2 and 3: Evaluable-20 Immunogenicity Population

    Time frame: Before vaccination to 1 month after vaccination

    OPA GMFR is the ratio of OPA GMT, 1 month after vaccination to before vaccination OPA GMT. OPA GMFRs from before to 1 month after vaccination were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F.

  6. Percentage of Participants With >=4-Fold Rise in Pneumococcal OPA Titers to the 13 Matched Serotypes From Before Vaccination 1 to 1 Month After Vaccination 1 (20vPnC or 13vPnC) in Cohort 1: Evaluable 13-Matched Immunogenicity Population

    Time frame: Before Vaccination 1 to 1 month after Vaccination 1

    Percentage of participants with a >=4-fold rise in serotype-specific pneumococcal OPA titers from before vaccination to 1 month after vaccination along with corresponding 2-sided 95% CIs were calculated for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F.

  7. Percentage of Participants With >=4-Fold Rise in Pneumococcal OPA Titers for the 7 Additional Serotypes From Before Vaccination 1 to 1 Month After Vaccination 1(20vPnC) or From Before Vaccination 1 to 1 Month After Vaccination 2(PPSV23) in Cohort 1:E7-AIP

    Time frame: Before Vaccination 1 to 1 month after Vaccination 1 for "Cohort 1: 20vPnC/Saline"; Before Vaccination 1 to 1 month after Vaccination 2 for "Cohort 1: 13vPnC/PPSV23"

    Percentage of participants with a >=4-fold rise in serotype-specific pneumococcal OPA titers from before vaccination to 1 month after vaccination along with corresponding 2-sided 95% CIs were calculated for pneumococcal serotypes 8, 10A, 11A, 12F, 15B, 22F and 33F.

  8. Percentage of Participants With >=4-Fold Rise in Pneumococcal OPA Titers for the 20 Vaccines Serotypes From Before Vaccination to 1 Month After Vaccination in Cohort 2 and 3: Evaluable-20 Immunogenicity Population

    Time frame: Before vaccination to 1 month after vaccination

    Percentage of participants with a >=4-fold rise in serotype-specific pneumococcal OPA titers from before vaccination to 1 month after vaccination along with corresponding 2-sided 95% CIs were calculated for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F.

  9. Percentage of Participants With Pneumococcal OPA Titers >= Lower Limit of Quantitation (LLOQ) for the 13 Matched Serotypes at 1 Month After Vaccination 1 (20vPnC or 13vPnC) in Cohort 1: Evaluable 13-Matched Immunogenicity Population

    Time frame: 1 month after Vaccination 1

    The percentage of participants with OPA titers >=LLOQ along with corresponding 2-sided 95% CIs were calculated 1 month after vaccination for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F.

  10. Percentage of Participants With Pneumococcal OPA Titers >=LLOQ for the 7 Additional Serotypes at 1 Month After Vaccination 1 (20vPnC) or 1 Month After Vaccination 2 (PPSV23) in Cohort 1: Evaluable 7-Additional Immunogenicity Population

    Time frame: 1 month after Vaccination 1 in "Cohort 1: 20vPnC/Saline" or 1 month after Vaccination 2 in "Cohort 1: 13vPnC/PPSV23"

    The percentage of participants with OPA titers >=LLOQ along with corresponding 2-sided 95% CIs were calculated 1 month after vaccination for pneumococcal serotypes 8, 10A, 11A, 12F, 15B, 22F and 33F.

  11. Percentage of Participants With Pneumococcal OPA Titers >=LLOQ for the 20 Vaccines Serotypes at 1 Month After Vaccination (20vPnC) in Cohort 2 and 3: Evaluable-20 Immunogenicity Population

    Time frame: 1 month after vaccination

    The percentage of participants with OPA titers >=LLOQ along with corresponding 2-sided 95% CIs were calculated 1 month after vaccination for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F. Data for this outcome measure were planned to be analyzed for the 20vPnC groups of Cohorts 2 and 3 only.

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Registry information

Official study title

A PHASE 3, RANDOMIZED, DOUBLE-BLIND TRIAL TO EVALUATE THE SAFETY AND IMMUNOGENICITY OF A 20-VALENT PNEUMOCOCCAL CONJUGATE VACCINE IN PNEUMOCOCCAL VACCINE-NAÏVE ADULTS 18 YEARS OF AGE AND OLDER

Important dates

Study start
2018
Primary completion
2019
Study completion
2019
First posted
Nov 30, 2018
Registry last updated
Dec 2, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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