SIDE EFFECTS
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a vaccine cannot be directly compared to rates in the clinical trials of another vaccine and may not reflect the rates observed in practice. The adverse reaction information from clinical trials does, however, provide a basis for identifying the adverse events that appear to be related to vaccine use and for approximating rates of those events.
In a primary immunization study conducted in Canada, 18 participants, 8 of whom were 6 to 9 years of age and 10 of whom were 17 to 56 years of age, received three doses of TENIVAC. In four booster immunization studies conducted in either the US or Canada, TENIVAC was administered to 3,723 participants overall, ranging in age from 11 to 93 years.
In one of these studies, a US multi-center booster immunization study (TDC01), 2,250 adolescents and adults ages 11-59 years of age received TENIVAC in an open-label design and adults 60 years of age and over were randomized to receive either TENIVAC (N = 700) or DECAVAC (Td manufactured by Sanofi Pasteur Inc.) (N = 701). Vaccine assignment for participants ≥60 years of age was unblinded to pharmacists and vaccination nurses, but was blinded to other study personnel and participants. Among participants who received TENIVAC, overall, 80.4% were Caucasian, 3.3% Black, 5.1% Hispanic, 4.5% Asian and 6.6% other races. Among participants ≥60 years of age, the racial distribution was similar for the TENIVAC and DECAVAC groups. Among participants who received TENIVAC, the proportion of participants who were female varied by age group (44.4% of participants 11-18 years of age, 70.1% of participants 19-59 years of age and 62.4% of participants ≥60 years of age). Among participants ≥60 years of age who received DECAVAC, 57.6% were female. Nearly all (99.8%) enrolled participants and all participants in the per-protocol immunogenicity population had a reported or documented history of previous immunization against tetanus and diphtheria and, by report, had not received a vaccine containing tetanus or diphtheria toxoid within 5 years prior to enrollment.
In the US multi-center booster immunization study, solicited injection site reactions and systemic adverse events were monitored on diary cards for a subset of participants 11-59 years of age and for all participants ≥60 years of age. The incidence and severity of solicited injection site reactions and selected solicited systemic adverse events that occurred within 3 days following vaccination are shown in Table 2.
Table 2: Frequency and Severity of Selected Solicited Adverse Events Within 0-3 Days Following TENIVAC or DECAVAC in a US Study
| TENIVAC | DECAVAC |
Adolescents 11 to 18 years N = 491-492 % | Adults 19 to 59 years N = 247 % | Adults ≥60 years N = 688-695 % | Adults ≥60 years N = 686-693 % |
Injection Site Adverse Reactions |
Pain |
Any | 80.1 | 74.9 | 35.3 | 29.4 |
Moderate* | 15.0 | 18.2 | 2.9 | 2.3 |
Severe† | 0.2 | 0.4 | 0.6 | 0.7 |
Redness |
Any | 25.6 | 15.8 | 18.1 | 18.0 |
≥35 mm to <50 mm | 1.2 | 2.4 | 0.7 | 1.3 |
≥50 mm | 0.4 | 0.4 | 2.3 | 1.9 |
Swelling |
Any | 15.0 | 17.0 | 12.1 | 13.0 |
≥35 mm to <50 mm | 1.2 | 2.8 | 1.0 | 1.3 |
≥50 mm | 1.8 | 2.8 | 1.7 | 1.3 |
Systemic Adverse Events |
Fever |
≥37.5°C | 4.3 | 5.7 | 2.5 | 3.8 |
≥38.0°C to <39°C | 0.8 | 1.6 | 0.6 | 0.9 |
≥39°C | 0.0 | 0.0 | 0.1 | 0.1 |
Headache |
Any | 23.0 | 25.1 | 11.7 | 10.8 |
Moderate* | 4.3 | 7.3 | 1.6 | 1.4 |
Severe† | 0.6 | 0.8 | 0.0 | 0.3 |
Muscle Weakness |
Any | 32.3 | 17.4 | 4.9 | 5.9 |
Moderate* | 7.3 | 3.2 | 1.3 | 1.0 |
Severe† | 0.6 | 0.4 | 0.1 | 0.1 |
Malaise |
Any | 14.5 | 17.0 | 8.9 | 8.8 |
Moderate* | 3.5 | 3.2 | 2.4 | 1.2 |
Severe† | 0.8 | 0.4 | 0.1 | 0.4 |
Pain in Joints |
Any | 15.7 | 10.9 | 8.5 | 7.4 |
Moderate* | 2.8 | 1.6 | 2.2 | 1.4 |
Severe† | 0.6 | 0.4 | 0.1 | 0.0 |
*Moderate: interfered with activities, but did not require medical care or absenteeism. †Severe: incapacitating, unable to perform usual activities, may have/or required medical care or absenteeism. |
In the US booster immunization study, among participants ≥60 years of age, 7 (1.0%) participants in the TENIVAC group and 10 (1.4%) participants in the DECAVAC group experienced a serious adverse event within 30 days following vaccination. During this period, 2 (0.3%) participants 19-59 years of age and no participants 11-18 years of age experienced a serious adverse event following TENIVAC. Serious adverse events within 30 days following TENIVAC included localized infection, asthma, colonic polyp, cellulitis, angina pectoris, hip and wrist fracture, cholecystitis, chest pain and cerebrovascular accident.
There were five deaths reported during the study. All of the reported deaths were in participants ≥60 years of age and occurred >30 days post-vaccination: three in the TENIVAC group (cardiopulmonary arrest; myocardial infarction and septic shock; and unknown cause) and two in the DECAVAC group (myocardial infarction and congestive heart failure; and liver cancer).
In the primary immunization study (N = 18) in which serious adverse events were monitored for 3 days following each vaccination and in three other booster immunization studies in which serious adverse events were monitored for either four days (N = 347) or one month (N = 426) following vaccination, no serious adverse events were reported.
Postmarketing Experience
The following adverse events have been spontaneously reported during the postmarketing use of TENIVAC. Because these events are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to vaccine exposure.
The following adverse events were included based on severity, frequency of reporting or the strength of causal association to TENIVAC:
Blood And Lymphatic System Disorders
Lymphadenopathy
Immune System Disorders
Allergic reactions (such as erythematous rash, maculopapular rash, urticaria and pruritus); anaphylactic reaction (bronchospasm and angioedema).
Nervous System Disorders
Paresthesia, dizziness, syncope
Guillain-Barre syndrome
Gastrointestinal Disorders
Vomiting
Musculoskeletal, Connective Tissue And Bone Disorders
Myalgia, pain in extremities
General Disorders And Administration Site Conditions
Injection site reactions (including inflammation, mass, edema, induration, warmth, pruritus, cellulitis, discomfort)
Fatigue, edema peripheral
DRUG INTERACTIONS
Concomitant Vaccine Administration
No safety and immunogenicity data are available on the concomitant administration of TENIVAC with other US licensed vaccines.
Tetanus Immune Globulin (Human)
If passive protection against tetanus is required, TIG (Human) may be administered according to its prescribing information, concomitantly with TENIVAC at a separate site with a separate needle and syringe. [See DOSAGE AND ADMINISTRATION]
Immunosuppressive Treatments
Immunosuppressive therapies, including irradiation, antimetabolites, alkylating agents, cytotoxic drugs and corticosteroids (used in greater than physiologic doses), may reduce the immune response to TENIVAC. [See WARNINGS AND PRECAUTIONS]