ClinicalTrials.gg
CompletedNCT01646398Updated Sep 20, 2013Results posted

A Phase 3 Trial Evaluating the Safety, Tolerability, and Immunogenicity of a 13-valent Pneumococcal Conjugate Vaccine in Japanese Elderly Adults Aged 65 Years Old and Older

A Phase 3 interventional study of 13-valent pneumococcal conjugate vaccine and 23-valent pneumococcal polysaccharide vaccine in Pneumococcal Vaccines and Pneumococcal Conjugate Vaccine, sponsored by Pfizer. Completed at 8 sites in Japan. Open to participants aged 65 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-09-20.

Sponsored by Pfizer · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
764
Allocation
Randomized
Ages
65 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the safety, tolerability and immunogenicity of a single dose of 13-valent pneumococcal conjugate vaccine compared to a single dose of 23-valent pneumococcal polysaccharide vaccine in Japanese adults aged 65 years old and older.

02

Conditions studied

  • Pneumococcal Vaccines
  • Pneumococcal Conjugate Vaccine

Keywords

  • 13VPNC
  • 23VPS
03

In context

Lead sponsor

Pfizer is the lead sponsor of 3,323 studies on the registry; 145 are open to participants now.

Of its 597 completed or terminated interventional studies of FDA-regulated products, 391 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
65 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Healthy Japanese male and female adults aged 65 years old and older at time of enrollment. Subjects with preexisting stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening disease 12 weeks before receipt of the study vaccine, are eligible.
  2. Male and female subjects of childbearing potential must agree to use a highly effective method of contraception throughout the study or for at least 28 days after the last dose of the study vaccine whichever is longer.

Exclusion criteria

Exclusion Criteria:

  1. History of severe adverse reaction including hypersensitivity such as anaphylaxis associated with a vaccine or vaccine component.
  2. Previous vaccination with any licensed or experimental pneumococcal vaccine.
  3. Documented Streptococcus pneumoniae infection within the past 5 years.
  4. Residence in a nursing home, long-term care facility, or other institution or requirement of semiskilled nursing care.
05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
764 participants (actual)

Study arms

  • Experimental
    >= 65-year age group-13vPnC

    Biological: 13-valent pneumococcal conjugate vaccine

  • Active comparator
    >= 65-year age group-23vPS

    Biological: 23-valent pneumococcal polysaccharide vaccine

Interventions

06

What researchers measure

Primary outcomes

  1. Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 12 Common Serotypes 1 Month After Vaccination

    Antibody-mediated serum OPA against each of the 12 pneumococcal serotypes (1, 3, 4, 5, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) was measured centrally using a quantitative functional microcolony OPA (mcOPA) assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

    Time frame: One month after vaccination

  2. Percentage of Participants Achieving At Least a 4-fold Rise in OPA Titers for Serotype 6A 1 Month After Vaccination

    For serotype 6A the percentage of participants achieving at least a 4-fold rise on the serotype-specific antibody titer from pre-vaccination to 1 month post-vaccination was computed along with exact, 2-sided 95% confidence interval for the proportion.

    Time frame: One month after vaccination

Secondary outcomes

  1. Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 12 Common Serotypes and Serotype 6A 1 Month After Vaccination

    Antibody-mediated serum OPA against each of the 13 pneumococcal serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) was measured centrally using a quantitative functional microcolonoy OPA (mcOPA) assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

    Time frame: One month after vaccination

Other outcomes

  1. Percentage of Participants Reporting Pre-specified Local Reactions Within 14 Days After Vaccination

    Local reactions reported using an electronic diary. Redness and swelling scaled as Any (redness present or swelling present); Mild (2.5 to 5.0 centimeters \[cm\]; Moderate (5.1 to 10.0 cm); Severe (\>10 cm). Pain scaled as Any (pain present); Mild (awareness of pain; easily tolerated); Moderate (discomfort enough to cause interference with usual activity); Severe (incapacitating). Limitation of arm movement scaled as Any (limitation present); Mild (some limitation); Moderate (unable to move arm above head; able to move arm above shoulder); Severe (unable to move arm above shoulder).

    Time frame: Within 14 days after vaccination

  2. Percentage of Participants Reporting Pre-specified Systemic Events Within 14 Days After Vaccination

    Systemic events reported using an electronic diary. Systemic events are any fever greater than or equal to (\>=) 37.5 degrees Celsius \[C\], fatigue, headache, chills, rash, vomiting, decreased appetite, new muscle pain, aggravated muscle pain, new joint pain, aggravated joint pain, use of medication to treat fever and use of medication to treat pain. All reports of fever \>=39 degrees C in 13vPnC and 23vPS were confirmed as data entry errors.

    Time frame: Within 14 days after vaccination

07

Results

Posted Sep 20, 2013

Participant flow

Participant flow — Overall Study
Milestone13vPnC23vPS
Started382382
Completed381382
Not completed10
Withdrew: Withdrawal by subject10

Outcome measures

PrimarySerotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 12 Common Serotypes 1 Month After Vaccination

Antibody-mediated serum OPA against each of the 12 pneumococcal serotypes (1, 3, 4, 5, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) was measured centrally using a quantitative functional microcolony OPA (mcOPA) assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

Time frame:
One month after vaccination
Reported as:
Geometric mean · titer
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 12 Common Serotypes 1 Month After Vaccination
titer13vPnC23vPS
1 (n=366, 366)103 (84.6 to 125.5)78 (63.6 to 95.8)
3 (n=365, 367)44 (38.1 to 51.5)61 (52.8 to 70.1)
4 (n=360, 362)1016 (850.7 to 1213.2)392 (314.7 to 487.1)
5 (n=350, 361)347 (282.3 to 425.6)118 (98.4 to 142.5)
6B (n=360, 359)1995 (1689.3 to 2355.9)1440 (1223.5 to 1694.2)
7F (n=365, 364)1901 (1642.8 to 2198.7)1361 (1153.3 to 1605.6)
9V (n=365,358)858 (675.7 to 1089.5)379 (290.2 to 493.9)
14 (n=363, 359)1028 (866.9 to 1217.9)1059 (896.6 to 1250.6)
18C (n=366, 362)2015 (1675.4 to 2424.5)938 (752.7 to 1170.1)
19A (n=365, 362)985 (841.5 to 1153.9)429 (358.0 to 513.2)
19F (n=352, 357)773 (607.9 to 983.0)388 (305.6 to 491.8)
23F (n=366, 363)456 (363.7 to 570.6)180 (143.1 to 226.1)
Statistical analysis
  • 13vPnC vs 23vPS · Gmt ratio: 1.3 · 95% CI 0.99 to 1.75
  • 13vPnC vs 23vPS · Gmt ratio: 0.7 · 95% CI 0.59 to 0.89
  • 13vPnC vs 23vPS · Gmt ratio: 2.6 · 95% CI 1.96 to 3.44
  • 13vPnC vs 23vPS · Gmt ratio: 2.9 · 95% CI 2.22 to 3.86
  • 13vPnC vs 23vPS · Gmt ratio: 1.4 · 95% CI 1.10 to 1.75
  • 13vPnC vs 23vPS · Gmt ratio: 1.4 · 95% CI 1.12 to 1.74
  • 13vPnC vs 23vPS · Gmt ratio: 2.3 · 95% CI 1.59 to 3.24
  • 13vPnC vs 23vPS · Gmt ratio: 1.0 · 95% CI 0.77 to 1.23
  • 13vPnC vs 23vPS · Gmt ratio: 2.1 · 95% CI 1.61 to 2.86
  • 13vPnC vs 23vPS · Gmt ratio: 2.3 · 95% CI 1.81 to 2.92
  • 13vPnC vs 23vPS · Gmt ratio: 2.0 · 95% CI 1.42 to 2.79
  • 13vPnC vs 23vPS · Gmt ratio: 2.5 · 95% CI 1.84 to 3.49
PrimaryPercentage of Participants Achieving At Least a 4-fold Rise in OPA Titers for Serotype 6A 1 Month After Vaccination

For serotype 6A the percentage of participants achieving at least a 4-fold rise on the serotype-specific antibody titer from pre-vaccination to 1 month post-vaccination was computed along with exact, 2-sided 95% confidence interval for the proportion.

Time frame:
One month after vaccination
Reported as:
Number · percentage of participants
Percentage of Participants Achieving At Least a 4-fold Rise in OPA Titers for Serotype 6A 1 Month After Vaccination
percentage of participants13vPnC23vPS
Percentage of Participants Achieving At Least a 4-fold Rise in OPA Titers for Serotype 6A 1 Month After Vaccination74.0 (68.8 to 78.7)47.2 (41.6 to 52.8)
Statistical analysis
  • 13vPnC vs 23vPS · Difference in percentage: 26.8 · 95% CI 19.3 to 34.0
SecondarySerotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 12 Common Serotypes and Serotype 6A 1 Month After Vaccination

Antibody-mediated serum OPA against each of the 13 pneumococcal serotypes (1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) was measured centrally using a quantitative functional microcolonoy OPA (mcOPA) assay. Results were expressed as OPA titers. OPA titers were logarithmically transformed for analysis; geometric means calculated and expressed as geometric mean titers (GMTs).

Time frame:
One month after vaccination
Reported as:
Geometric mean · titer
Serotype-specific Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 12 Common Serotypes and Serotype 6A 1 Month After Vaccination
titer13vPnC23vPS
1 (n=366, 366)103 (84.6 to 125.5)78 (63.6 to 95.8)
3 (n=365, 367)44 (38.1 to 51.5)61 (52.8 to 70.1)
4 (n=360, 362)1016 (850.7 to 1213.2)392 (314.7 to 487.1)
5 (n=350, 361)347 (282.3 to 425.6)118 (98.4 to 142.5)
6B (n=360, 359)1995 (1689.3 to 2355.9)1440 (1223.5 to 1694.2)
7F (n=365, 364)1901 (1642.8 to 2198.7)1361 (1153.3 to 1605.6)
9V (n=365,358)858 (675.7 to 1089.5)379 (290.2 to 493.9)
14 (n=363, 359)1028 (866.9 to 1217.9)1059 (896.6 to 1250.6)
18C (n=366, 362)2015 (1675.4 to 2424.5)938 (752.7 to 1170.1)
19A (n=365, 362)985 (841.5 to 1153.9)429 (358.0 to 513.2)
19F (n=352, 357)773 (607.9 to 983.0)388 (305.6 to 491.8)
23F (n=366, 363)456 (363.7 to 570.6)180 (143.1 to 226.1)
6A (n=360, 349)2122 (1790.9 to 2515.2)676 (542.4 to 841.7)
Statistical analysis
  • 13vPnC vs 23vPS · Gmt ratio: 1.3 · 95% CI 0.99 to 1.75
  • 13vPnC vs 23vPS · Gmt ratio: 0.7 · 95% CI 0.59 to 0.89
  • 13vPnC vs 23vPS · Gmt ratio: 2.6 · 95% CI 1.96 to 3.44
  • 13vPnC vs 23vPS · Gmt ratio: 2.9 · 95% CI 2.22 to 3.86
  • 13vPnC vs 23vPS · Gmt ratio: 1.4 · 95% CI 1.10 to 1.75
  • 13vPnC vs 23vPS · Gmt ratio: 1.4 · 95% CI 1.12 to 1.74
  • 13vPnC vs 23vPS · Gmt ratio: 2.3 · 95% CI 1.59 to 3.24
  • 13vPnC vs 23vPS · Gmt ratio: 1.0 · 95% CI 0.77 to 1.23
  • 13vPnC vs 23vPS · Gmt ratio: 2.1 · 95% CI 1.61 to 2.86
  • 13vPnC vs 23vPS · Gmt ratio: 2.3 · 95% CI 1.81 to 2.92
  • 13vPnC vs 23vPS · Gmt ratio: 2.0 · 95% CI 1.42 to 2.79
  • 13vPnC vs 23vPS · Gmt ratio: 2.5 · 95% CI 1.84 to 3.49
  • 13vPnC vs 23vPS · Gmt ratio: 3.1 · 95% CI 2.38 to 4.14
Other pre-specifiedPercentage of Participants Reporting Pre-specified Local Reactions Within 14 Days After Vaccination

Local reactions reported using an electronic diary. Redness and swelling scaled as Any (redness present or swelling present); Mild (2.5 to 5.0 centimeters \[cm\]; Moderate (5.1 to 10.0 cm); Severe (\>10 cm). Pain scaled as Any (pain present); Mild (awareness of pain; easily tolerated); Moderate (discomfort enough to cause interference with usual activity); Severe (incapacitating). Limitation of arm movement scaled as Any (limitation present); Mild (some limitation); Moderate (unable to move arm above head; able to move arm above shoulder); Severe (unable to move arm above shoulder).

Time frame:
Within 14 days after vaccination
Reported as:
Number · percentage of participants
Percentage of Participants Reporting Pre-specified Local Reactions Within 14 Days After Vaccination
percentage of participants13vPnC23vPS
Redness: Any (n=355, 363)28.7 (24.1 to 33.7)10.5 (7.5 to 14.1)
Redness: Mild (n=352, 362)22.2 (17.9 to 26.9)7.7 (5.2 to 11.0)
Redness: Moderate (n=353, 360)17.3 (13.5 to 21.6)3.9 (2.1 to 6.4)
Redness: Severe (n=349, 359)3.4 (1.8 to 5.9)0.3 (0.0 to 1.5)
Swelling: Any (n=353, 360)21.5 (17.4 to 26.2)6.7 (4.3 to 9.8)
Swelling: Mild (n=351, 360)16.5 (12.8 to 20.8)5.0 (3.0 to 7.8)
Swelling: Moderate (n=351, 359)9.7 (6.8 to 13.3)2.5 (1.2 to 4.7)
Swelling: Severe (n=349, 359)1.4 (0.5 to 3.3)0.3 (0.0 to 1.5)
Pain: Any (n=362, 368)45.6 (40.4 to 50.9)38.3 (33.3 to 43.5)
Pain: Mild (n=362, 368)45.3 (40.1 to 50.6)37.5 (32.5 to 42.7)
Pain: Moderate (n=349, 361)2.9 (1.4 to 5.2)5.5 (3.4 to 8.4)
Pain: Severe (n=348, 359)0.0 (0.0 to 1.1)1.4 (0.5 to 3.2)
Limitation of arm movement: Any (n=355, 362)16.3 (12.6 to 20.6)16.9 (13.1 to 21.1)
Limitation of arm movement: Mild (n=355, 361)15.5 (11.9 to 19.7)15.8 (12.2 to 20.0)
Limitation of arm movement: Moderate(n=348, 360)1.1 (0.3 to 2.9)3.6 (1.9 to 6.1)
Limitation of arm movement: Severe (n=348, 359)0.3 (0.0 to 1.6)1.7 (0.6 to 3.6)
Other pre-specifiedPercentage of Participants Reporting Pre-specified Systemic Events Within 14 Days After Vaccination

Systemic events reported using an electronic diary. Systemic events are any fever greater than or equal to (\>=) 37.5 degrees Celsius \[C\], fatigue, headache, chills, rash, vomiting, decreased appetite, new muscle pain, aggravated muscle pain, new joint pain, aggravated joint pain, use of medication to treat fever and use of medication to treat pain. All reports of fever \>=39 degrees C in 13vPnC and 23vPS were confirmed as data entry errors.

Time frame:
Within 14 days after vaccination
Reported as:
Number · percentage of participants
Percentage of Participants Reporting Pre-specified Systemic Events Within 14 Days After Vaccination
percentage of participants13vPnC23vPS
Fever >=37.5 to <38.5 degrees C (n=348, 359)2.6 (1.2 to 4.9)2.8 (1.3 to 5.1)
Fever >=38.5 to <39 degrees C (n=348, 359)0.3 (0.0 to 1.6)0.3 (0.0 to 1.5)
Fever >=39 to <=40 degrees C (n=348, 359)0.0 (0.0 to 1.1)0.6 (0.1 to 2.0)
Fever >40 degrees C (n=348, 359)0.9 (0.2 to 2.5)0.0 (0.0 to 1.0)
Fatigue (n=352, 362)17.3 (13.5 to 21.7)16.0 (12.4 to 20.2)
Headache (n=351, 361)9.4 (6.6 to 12.9)11.6 (8.5 to 15.4)
Chills (n=348, 359)2.9 (1.4 to 5.2)1.1 (0.3 to 2.8)
Rash (n=350, 359)8.9 (6.1 to 12.3)3.6 (1.9 to 6.1)
Vomiting (n=348, 359)1.1 (0.3 to 2.9)0.6 (0.1 to 2.0)
Decreased appetite (n=348, 360)3.7 (2.0 to 6.3)5.0 (3.0 to 7.8)
New muscle pain (n=354, 362)18.4 (14.5 to 22.8)17.4 (13.6 to 21.7)
Aggravated muscle pain (n=350, 359)4.0 (2.2 to 6.6)3.9 (2.1 to 6.5)
New joint pain (n=350, 359)7.7 (5.1 to 11.0)7.0 (4.6 to 10.1)
Aggravated joint pain (n=349, 359)2.9 (1.4 to 5.2)3.1 (1.5 to 5.4)
Use of medication to treat fever (n=348, 360)0.9 (0.2 to 2.5)2.2 (1.0 to 4.3)
Use of medication to treat pain (n=348, 360)1.1 (0.3 to 2.9)2.8 (1.3 to 5.0)

Adverse events

Collected over AEs/SAEs: recorded from signing of informed consent form to completion of study. Participants recorded pre-specified AEs in electronic diary:local reactions; systemic events; use of antipyretic medication (up to 14 days after vaccination).. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
13vPnC—1/382 (0.3%)211/382 (55.2%)
23vPS—0/382 (0%)166/382 (43.5%)
Most frequent serious events
Most frequent serious events
Event13vPnC23vPS
Pancreatic carcinomaNeoplasms benign, malignant and unspecified (incl cysts and polyps)1/3820/382
Most frequent other events
Showing 10 of 74
Most frequent other events
Event13vPnC23vPS
Pain (Any)Skin and subcutaneous tissue disorders165/362141/368
Pain (Mild)Skin and subcutaneous tissue disorders164/362138/368
Redness (Any)Skin and subcutaneous tissue disorders102/35538/363
Redness (Mild)Skin and subcutaneous tissue disorders78/35228/362
Swelling (Any)Skin and subcutaneous tissue disorders76/35324/360
New muscle painGeneral disorders65/35463/362
FatigueGeneral disorders61/35258/362
Redness (Moderate)Skin and subcutaneous tissue disorders61/35314/360
Limitation of arm movement (Any)Skin and subcutaneous tissue disorders58/35561/362
Swelling (Mild)Skin and subcutaneous tissue disorders58/35118/360

Baseline characteristics

Age Continuous
Age Continuous(years)13vPnC23vPSTotal
Mean70.0 ± 4.0869.7 ± 3.6669.9 ± 3.87
Sex: Female, Male
Sex: Female, Male(Participants)13vPnC23vPSTotal
Female198187385
Male184195379
08

Study locations

8 sites
  • Medical Co.LTA PS Clinic
    Fukuoka, Fukuoka, Japan
  • Seishinkai Inoue Hospital
    Itoshima, Fukuoka, Japan
  • Yokohama Minoru Clinic
    Yokohama, Kanagawa, Japan
  • Uzumasa Medical Clinic
    Kyoto, Kyoto, Japan
  • Senbon Hospital
    Osaka, Osaka, Japan
  • Oda Clinic
    Shinjuku-ku, Tokyo, Japan
  • Sone Clinic
    Shinjuku-ku, Tokyo, Japan
  • Medical Co. LTA Sumida Hospital
    Sumida-ku, Tokyo, Japan
09

References and documents

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 20, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01646398
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Jul 20, 2012
Start date
Jun 2012
Primary completion
Oct 2012
Completion
Oct 2012
Results posted
Sep 20, 2013
Last update
Sep 20, 2013

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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