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HIBERIX [Haemophilus b Conjugate Vaccine (Tetanus Toxoid Conjugate)] is a sterile, lyophilized powder which is reconstituted at the time of use with the accompanying saline diluent for intramuscular injection. HIBERIX contains Haemophilus b capsular polysaccharide (polyribosyl-ribitol-phosphate [PRP]), a high molecular weight polymer prepared from the Haemophilus influenzae type b strain 20,752 grown in a synthetic medium that undergoes heat inactivation and purification. The tetanus toxin, prepared from Clostridium tetani grown in a semi-synthetic medium, is detoxified with formaldehyde and purified. The capsular polysaccharide is covalently bound to the tetanus toxoid. After purification, the conjugate is lyophilized in the presence of lactose as a stabilizer. The diluent for HIBERIX is a sterile saline solution (0.9% sodium chloride) supplied in prefilled TIP-LOK syringes.
When HIBERIX is reconstituted with the accompanying saline diluent, each dose is formulated to contain 10 mcg of purified capsular polysaccharide conjugated to approximately 25 mcg of tetanus toxoid, 12.6 mg of lactose, and ≤ 0.5 mcg of residual formaldehyde.
HIBERIX does not contain preservatives.
The tip caps of the prefilled syringes may contain natural rubber latex. The rubber plungers of the prefilled syringes and the vial stoppers do not contain latex. [See HOW SUPPLIED/Storage and Handling]
HIBERIX is indicated for active immunization for the prevention of invasive disease caused by Haemophilus influenzae (H. influenzae) type b. HIBERIX is approved for use in children aged 6 weeks through 4 years (prior to fifth birthday).
For intramuscular use only.
After reconstitution, a single dose of HIBERIX is either 0.5 mL or approximately 0.5 mL depending on the presentation [see Presentations And Reconstitution].
HIBERIX is administered as a 4-dose series. The series consists of a primary immunization course of 3 doses administered at 2, 4, and 6 months of age, followed by a booster dose administered at 15 through 18 months of age. The first dose may be given as early as 6 weeks of age.
HIBERIX is supplied in 2 presentations as follows:
The vial and vial presentation includes a vial of Lyophilized Antigen Component and a vial of Sterile Saline Diluent.
The vial and prefilled syringe presentation includes a vial of Lyophilized Antigen Component and a prefilled syringe of Sterile Saline Diluent.
For both presentations reconstitute the Lyophilized Antigen Component only with the accompanying Sterile Saline Diluent to form HIBERIX.
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The reconstituted vaccine should be a clear and colorless solution. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. If either of these conditions exists, the vaccine should not be administered.
Administer HIBERIX intramuscularly immediately after reconstitution.
HIBERIX is a solution for injection.
For the vial and vial presentation a single dose after reconstitution is 0.5 mL.
For the vial and prefilled syringe presentation a single dose after reconstitution is approximately 0.5 mL.
HIBERIX Vial and Vial presentation is supplied in a carton packaged without syringes or needles (NDC 58160-818-11) containing:
HIBERIX Vial and Prefilled Syringe Presentation is supplied in a carton (NDC 58160-726-15) containing:
TIP-LOK syringes are to be used with Luer Lock compatible needles.
The stopper of the vial containing Lyophilized Antigen Component or Sterile Saline Diluent and the tip cap and rubber plunger stopper of the prefilled syringe containing Sterile Saline Diluent are not made with natural rubber latex.
Lyophilized Antigen Component vials: Store refrigerated between 2° and 8°C (36° and 46°F). Protect vials from light.
Sterile Saline Diluent prefilled syringes and vials: Store refrigerated or at controlled room temperature between 2° and 25°C (36° and 77°F). Do not freeze. Discard if the diluent has been frozen.
Manufactured by GlaxoSmithKline Biologicals Rixensart, Belgium, U.S. Revised: Dec 2023.
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a vaccine cannot be directly compared with rates in the clinical trials of another vaccine and may not reflect the rates observed in practice. There is the possibility that broad use of HIBERIX could reveal adverse reactions not observed in clinical trials.
Across clinical trials, common solicited adverse reactions (≥20%) were pain and redness at the injection site, irritability, drowsiness, fever, loss of appetite, fussiness, and restlessness.
Study 1: In a randomized, controlled clinical trial conducted in the U.S., children were vaccinated with HIBERIX (n = 2,963), a U.S.-licensed monovalent Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA) (n = 520), or a U.S.-licensed combined Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus b Conjugate Vaccine (DTaP-IPV/Hib) (Sanofi Pasteur Ltd.) (n = 520) at 2, 4, and 6 months of age. HIBERIX and Control PRP-T (Sanofi Pasteur SA) were administered concomitantly with PEDIARIX (DTaP-HBV-IPV) [Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Hepatitis B (Recombinant) and Inactivated Poliovirus Vaccine] and Pneumococcal 13-valent Conjugate Vaccine (PCV13) (Wyeth Pharmaceuticals Inc.) with Doses 1, 2, and 3 and ROTARIX [Rotavirus Vaccine, Live, Oral] with Doses 1 and 2. DTaP-IPV/Hib was administered concomitantly with PCV13 and ENGERIX-B [Hepatitis B Vaccine (Recombinant)] with Doses 1, 2, and 3 and ROTARIX with Doses 1 and 2. If a birth dose of hepatitis B vaccine was received, ENGERIX-B was given with Doses 1 and 3. In the total population, 51.2% were male; 61% were white, 8% were Asian, 9% were black, and 22% were other racial/ethnic groups.
In Study 1, children received a booster dose of either HIBERIX (n = 2,336), a Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA) (n = 435), or a combined Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed, Inactivated Poliovirus and Haemophilus b Conjugate Vaccine (DTaP-IPV/Hib) (Sanofi Pasteur Ltd.) (n = 400) at 15 to 18 months of age (mean age: 15.6 months) following primary vaccination at 2, 4, and 6 months of age with the same vaccine. The booster dose of HIBERIX and Control PRP-T (Sanofi Pasteur SA) was administered concomitantly with INFANRIX (DTaP) [Diphtheria and Tetanus Toxoids and Acellular Pertussis Vaccine Adsorbed].
In 7 additional clinical studies, 1,008 children received HIBERIX as a booster dose following primary vaccination with either HIBERIX (n = 530), Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA) (n = 235), Haemophilus b Conjugate Vaccine (Merck & Co., Inc.) (n = 26), or Haemophilus b Conjugate Vaccine (Wyeth Pharmaceuticals Inc.) (no longer licensed in the U.S., n = 217). None of the studies included a comparator group that received a booster dose with a U.S.-licensed Haemophilus b Conjugate Vaccine. Studies were conducted in Europe, Canada, and Latin America. Across these studies, the mean age of subjects at the time of booster vaccination with HIBERIX ranged from 16 to 19 months. At the time of vaccination, 172 (17.1%) subjects were aged 11 to 14 months, 642 (63.7%) subjects were aged 15 to 18 months, and 194 (19.2%) subjects were aged 19 to 25 months. Approximately half of the subjects were male. Among subjects for whom information on race/ethnicity was available, nearly all subjects were white.
In these 7 studies, HIBERIX was administered concomitantly with non-U.S. formulations (containing 2.5 mg 2-phenoxyethanol per dose as preservative) of one of the following U.S.-licensed vaccines: INFANRIX (DTaP) [Diphtheria and Tetanus Toxoids and Acellular Pertussis Vaccine Adsorbed], KINRIX (DTaP-IPV) [Diphtheria and Tetanus Toxoids and Acellular Pertussis Adsorbed and Inactivated Poliovirus Vaccine], or PEDIARIX (DTaP-HBV-IPV). In the studies, DTaP-IPV and DTaP-HBV-IPV were administered in dosing regimens not approved in the U.S. Some subjects received DTaP-HBV (GlaxoSmithKline Biologicals, not licensed in U.S.) concomitantly with HIBERIX.
The reported frequencies of solicited local reactions and general adverse reactions from Study 1 after primary and booster vaccination are presented in Table 1 and Table 2, respectively.
Table 1. Percentage of Children with Solicited Local Reactions and General Adverse Reactions within 4 Days of Primary Series Vaccinationa (at 2, 4, and 6 Months of Age) with HIBERIXb, Control PRP-Tb, or DTaP-IPV/Hibc, Total Vaccinated Cohortd
| Adverse Reactions | HIBERIX % |
Control PRP-T % |
DTaP-IPV/Hib % |
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| Dose | Dose | Dose | |||||||
| 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | |
| Locale | |||||||||
| n | 2,828 | 2,668 | 2,553 | 498 | 481 | 463 | 492 | 469 | 443 |
| Pain | 49 | 45 | 43 | 57 | 53 | 48 | 58 | 50 | 49 |
| Pain, Grade 3f | 4 | 3 | 2 | 9 | 5 | 4 | 9 | 3 | 3 |
| Redness | 19 | 25 | 29 | 24 | 32 | 30 | 26 | 31 | 37 |
| Redness, >20 mm | 1 | 1 | 1 | 2 | 1 | 0 | 2 | 2 | 2 |
| Swelling | 13 | 15 | 19 | 19 | 22 | 20 | 20 | 24 | 24 |
| Swelling, >20 mm | 2 | 1 | 1 | 4 | 3 | 1 | 4 | 2 | 2 |
| General | |||||||||
| n | 2,830 | 2,669 | 2,553 | 499 | 480 | 463 | 492 | 469 | 443 |
| Irritability | 69 | 70 | 67 | 76 | 71 | 67 | 73 | 67 | 69 |
| Irritability, Grade 3g | 4 | 6 | 5 | 8 | 8 | 5 | 6 | 5 | 3 |
| Drowsiness | 60 | 54 | 49 | 66 | 56 | 50 | 61 | 52 | 50 |
| Drowsiness, Grade 3h | 2 | 3 | 2 | 4 | 2 | 1 | 4 | 3 | 3 |
| Loss of appetite | 29 | 28 | 28 | 33 | 32 | 27 | 34 | 24 | 24 |
| Loss of appetite, Grade 3i | 1 | 2 | 2 | 2 | 1 | 0 | 1 | 0 | 1 |
| Fever | 14 | 19 | 19 | 16 | 19 | 16 | 12 | 11 | 18 |
| Fever, Grade 3j | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 |
| n = All subjects for whom safety data were available. a Within 4 days of vaccination defined as day of vaccination and the next 3 days. b Each dose (Doses 1, 2, and 3) of HIBERIX or Control PRP-T (Sanofi Pasteur SA) was concomitantly administered with PEDIARIX (DTaP-HBV-IPV) and PCV13. Doses 1 and 2 were concomitantly administered with ROTARIX. c Each dose (Doses 1, 2, and 3) of DTaP-IPV/Hib was concomitantly administered with PCV13 and ENGERIX-B with Doses 1, 2, and 3 and ROTARIX with Doses 1 and 2. If a birth dose of hepatitis B vaccine was received, ENGERIX-B was given with Doses 1 and 3. d Study 1: NCT01000974. e Local reactions at the injection site for HIBERIX, Control PRP-T, or DTaP-IPV/Hib. f Grade 3 pain defined as cried when limb was moved/spontaneously painful. g Grade 3 irritability defined as crying that could not be comforted/prevented normal activity. h Grade 3 drowsiness defined as prevented normal daily activity. i Grade 3 loss of appetite defined as did not eat at all. j Fever defined as ≥100.4°F (≥38.0°C) rectally; Grade 3 fever defined as >103.1°F (>39.5°C) rectally. |
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Table 2. Percentage of Children with Solicited Local Reactions and General Adverse Reactions within 4 Days of Booster Vaccinationa (Dose 4 at 15 through 18 Months of Age) with HIBERIXb, Control PRP-Tb, or DTaP-IPV/Hib, Total Vaccinated Cohortc
| Adverse Reactions | HIBERIX % |
Control PRP-T % |
DTaP-IPV/Hib % |
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| Any | Grade 3d | Any | Grade 3d | Any | Grade 3d | |
| Locale | n = 2,224 | n = 416 | n = 379 | |||
| Pain | 41 | 1 | 43 | 1 | 43 | 2 |
| Redness | 30 | 0 | 31 | 1 | 30 | 3 |
| Swelling | 18 | 1 | 20 | 1 | 20 | 3 |
| General | n = 2,225 | n = 416 | n = 379 | |||
| Irritability | 58 | 2 | 60 | 5 | 53 | 2 |
| Drowsiness | 39 | 1 | 39 | 3 | 31 | 0 |
| Loss of appetite | 28 | 1 | 34 | 2 | 22 | 1 |
| Feverf | 15 | 1 | 14 | 1 | 18 | 1 |
| n = All subjects for whom safety data were available. Subjects received primary vaccination at 2, 4, and 6 months of age with the same vaccine as the booster dose. a Within 4 days of vaccination defined as day of vaccination and the next 3 days. b The booster dose of HIBERIX and Control PRP-T (Sanofi Pasteur SA) was concomitantly administered with INFANRIX (DTaP). c Study 1: NCT01000974. d Grade 3 pain defined as cried when limb was moved/spontaneously painful. Grade 3 redness, swelling defined as >20 mm. Grade 3 irritability defined as crying that could not be comforted/prevented normal activity. Grade 3 drowsiness defined as prevented normal daily activity. Grade 3 loss of appetite defined as did not eat at all. Grade 3 fever defined as >102.2°F (>39.0°C) axillary. e Local reactions at the injection site for HIBERIX, Control PRP-T, or DTaP-IPV/Hib. f Fever defined as ≥99.5°F (≥37.5°C) axillary. |
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In an open-label, multicenter study conducted in Germany (Study 2), 371 children received a booster dose of HIBERIX administered concomitantly with DTaP-HBV-IPV. The mean age at the time of vaccination was 16 months. Subjects in this study had previously received a primary series with either HIBERIX (n = 92), Control PRP-T (Sanofi Pasteur SA) (n = 96), or Haemophilus b Conjugate Vaccine (Wyeth Pharmaceuticals Inc.) (no longer licensed in the U.S.) (n = 183). All subjects previously received 3 doses of DTaP-HBV-IPV. The reported frequencies of solicited local reactions and general adverse reactions are presented in Table 3.
Table 3. Percentage of Children with Solicited Local Reactions and General Adverse Reactions within 4 Days of Booster Vaccinationa (Dose 4) with HIBERIXb Coadministered with DTaP-HBV-IPVc, Intent-to-Treat Cohort (n = 371)
| Adverse Reactions | % Any |
% Grade 3 |
| Locald | ||
| Redness | 25 | 2e |
| Pain | 21 | 1f |
| Swelling | 15 | 2e |
| General | ||
| Feverg | 35 | 4 |
| Fussiness | 26 | 1h |
| Loss of appetite | 23 | 1i |
| Restlessness | 22 | 1i |
| Sleepiness | 20 | 1i |
| Diarrhea | 15 | 1i |
| Vomiting | 5 | 1i |
| n = All subjects for whom safety data were available. a Within 4 days of vaccination defined as day of vaccination and the next 3 days. b In this study, 92 subjects previously received 3 doses of HIBERIX, 96 subjects previously received 3 doses of a Control PRP-T (Sanofi Pasteur SA), and 183 subjects previously received 3 doses of a Haemophilus b Conjugate Vaccine that is no longer licensed in the U.S. c In this study, DTaP-HBV-IPV was given to subjects who previously received 3 doses of DTaP-HBV-IPV. In the U.S., PEDIARIX is approved for use as a 3-dose primary series; use as a fourth consecutive dose is not approved in the U.S. d Local reactions at the injection site for HIBERIX. e Grade 3 redness or swelling defined as >20 mm. f Grade 3 pain defined as causing crying when limb moved. g Fever defined as ≥100.4°F (≥38.0°C) rectally or ≥99.5°F (≥37.5°C) axillary, oral, or tympanic; Grade 3 fever defined as >103.1°F (>39.5°C) rectally or >102.2°F (>39.0°C) axillary, oral, or tympanic. h Grade 3 fussiness defined as persistent crying and could not be comforted. i Grade 3 for these symptoms defined as preventing normal daily activity. |
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In Study 1, one of 2,963 subjects who received HIBERIX and coadministered vaccines given at 2, 4, and 6 months of age experienced a serious adverse reaction which was in temporal association with vaccination and had no alternative plausible causes (convulsion on Day 14 after Dose 1). One of 2,336 subjects who received a booster dose of HIBERIX concomitantly with INFANRIX experienced a serious adverse reaction which was in temporal association with vaccination and had no alternative plausible causes (new onset febrile seizure on Day 1 after Dose 4).
In the 7 additional studies, 2 of 1,008 subjects reported a serious adverse reaction that occurred in the 31-day period following booster immunization with HIBERIX. One subject developed bilateral pneumonia 9 days post-vaccination and one subject experienced asthenia following accidental drug ingestion 18 days post-vaccination.
In addition to reports in clinical trials for HIBERIX, the following adverse reactions have been identified during postapproval use of HIBERIX. Because these reactions are reported voluntarily from a population of uncertain size, it is not possible to reliably estimate their frequency or establish a causal relationship to vaccination.
Extensive swelling of the vaccinated limb, injection site induration.
Allergic reactions (including anaphylactic and anaphylactoid reactions), angioedema.
Convulsions (with or without fever), hypotonic-hyporesponsive episode (i.e., sudden onset of hypotonia, hyporesponsiveness, and pallor or cyanosis), somnolence, syncope, or vasovagal responses to injection.
Apnea [see WARNINGS AND PRECAUTIONS].
Rash, urticaria.
Haemophilus b capsular polysaccharide derived from Haemophilus b Conjugate Vaccines has been detected in the urine of some vaccinees.1 Urine antigen detection may not have a diagnostic value in suspected disease due to H. influenzae type b within 1 to 2 weeks after receipt of a H. influenzae type b-containing vaccine, including HIBERIX [see WARNINGS AND PRECAUTIONS].
In clinical studies, HIBERIX was administered concomitantly with routinely recommended pediatric vaccines [see Clinical Studies].
Immunosuppressive therapies, including irradiation, antimetabolites, alkylating agents, cytotoxic drugs, and corticosteroids (used in greater than physiologic doses), may reduce the immune response to HIBERIX.
REFERENCES
1. Rothstein EP, Madore DV, Girone JAC, et al. Comparison of antigenuria after immunization with three Haemophilus influenzae type b conjugate vaccines. Pediatr Infect Dis J. 1991;10:311-314.
Included as part of the "PRECAUTIONS" Section
If Guillain-Barré syndrome has occurred within 6 weeks of receipt of a prior vaccine containing tetanus toxoid, the decision to give any tetanus toxoid-containing vaccine, including HIBERIX, should be based on careful consideration of the potential benefits and possible risks.
Syncope (fainting) can occur in association with administration of injectable vaccines, including HIBERIX. Syncope can be accompanied by transient neurological signs such as visual disturbance, paresthesia, and tonic-clonic limb movements. Procedures should be in place to avoid falling injury and to restore cerebral perfusion following syncope.
Apnea following intramuscular vaccination has been observed in some infants born prematurely. Decisions about when to administer an intramuscular vaccine, including HIBERIX, to infants born prematurely should be based on consideration of the individual infant’s medical status, and the potential benefits and possible risks of vaccination.
Prior to administration, the healthcare provider should review the patient's immunization history for possible vaccine hypersensitivity. Epinephrine and other appropriate agents used for the control of immediate allergic reactions must be immediately available should an acute anaphylactic reaction occur.
Safety and effectiveness of HIBERIX in immunosuppressed children have not been evaluated. If HIBERIX is administered to immunosuppressed children, including children receiving immunosuppressive therapy, the expected immune response may not be obtained.
Urine antigen detection may not have a diagnostic value in suspected disease due to H. influenzae type b within 1 to 2 weeks after receipt of a H. influenzae type b-containing vaccine, including HIBERIX [see DRUG INTERACTIONS].
Immunization with HIBERIX does not substitute for routine tetanus immunization.
HIBERIX has not been evaluated for carcinogenic or mutagenic potential, or for impairment of fertility.
Safety and effectiveness of HIBERIX in children younger than 6 weeks and in children aged 5 to 16 years have not been established.
No Information Provided
Severe allergic reaction (e.g., anaphylaxis) after a previous dose of any H. influenzae type b- or tetanus toxoid-containing vaccine or any component of the vaccine is a contraindication to administration of HIBERIX [see DESCRIPTION].
H. influenzae is a gram-negative coccobacillus. Most strains of H. influenzae that cause invasive disease are type b. H. influenzae type b can cause invasive disease such as sepsis and meningitis.
Specific levels of antibodies to polyribosyl-ribitol-phosphate (anti-PRP) have been shown to correlate with protection against invasive disease due to H. influenzae type b. Based on data from passive antibody studies2 and a clinical efficacy study with unconjugated Haemophilus b polysaccharide vaccine3, an anti-PRP concentration of 0.15 mcg/mL has been accepted as a minimal protective level. Data from an efficacy study with unconjugated Haemophilus b polysaccharide vaccine indicate that an anti-PRP concentration of ≥1.0 mcg/mL predicts protection through at least a 1-year period.4,5 These antibody levels have been used to evaluate the effectiveness of Haemophilus b Conjugate Vaccines, including HIBERIX.
The immunogenicity of HIBERIX was evaluated in a randomized, controlled trial (Study 1). HIBERIX or control vaccines were administered concomitantly with U.S.-licensed vaccines [see ADVERSE REACTIONS].
Anti-PRP geometric mean concentrations (GMCs) and seroprotection rates 1 month following Dose 3 of HIBERIX, Control PRP-T (Sanofi Pasteur SA), or DTaP-IPV/Hib are presented in Table 4.
Table 4. Anti-PRP GMCs and Seroprotection Rates 1 Month following 3 Doses of HIBERIX, Control PRP-Ta, or DTaP-IPV/Hibb Administered at 2, 4, and 6 Months of Age, ATP Cohort for Immunogenicityc
| Vaccine | n | Anti-PRP GMC (mcg/mL) (95% CI) |
% Anti-PRP ≥0.15 mcg/mL (95% CI) |
% Anti-PRP ≥1.0 mcg/mL (95% CI) |
| HIBERIX | 1,590 | 5.19 (4.77, 5.66) |
96.6 (95.6, 97.4) |
81.2 (79.2, 83.1) |
| Control PRP-T | 274 | 6.74 (5.59, 8.13) |
96.7d (93.9, 98.5) |
89.8e (85.6, 93.1) |
| DTaP-IPV/Hib | 253 | 3.64 (2.89, 4.58) |
92.5f (88.5, 95.4) |
78.3f (72.7, 83.2) |
| a U.S.-licensed monovalent Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA). b U.S.-licensed DTaP-IPV/Hib Vaccine (Sanofi Pasteur Ltd.). c Study 1: NCT01000974. d HIBERIX was non-inferior to Control PRP-T for percent of subjects achieving anti-PRP ≥0.15 mcg/mL (lower limit of 95% CI on difference of HIBERIX minus Control PRP-T ≥ predefined limit of -5%). e The non-inferiority criterion was not met (lower limit of 95% CI for the difference in the percentages of subjects with anti-PRP ≥1.0 mcg/mL between two groups [HIBERIX minus Control PRP-T] was -12.28%, which was lower than the predefined limit of -10%). f Analyses of anti-PRP immune responses following DTaP-IPV/Hib vaccination were exploratory. |
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The immunogenicity of HIBERIX administered as a booster dose at 15 to 18 months of age was evaluated in a subset of children from Study 1 (n = 336) in comparison with U.S.-licensed vaccines following primary vaccination at 2, 4, and 6 months of age [see ADVERSE REACTIONS]. The booster dose of HIBERIX and Control PRP-T (Sanofi Pasteur SA) was administered concomitantly with INFANRIX.
Antibodies to PRP were measured in sera obtained immediately prior to and 1 month after booster vaccination with HIBERIX or the control vaccines. Anti-PRP GMCs and seroprotection rates are presented in Table 5.
Table 5. Anti-PRP GMCs and Seroprotection Rates prior to and 1 Month following a Booster Dose (Dose 4 at 15 through 18 Months of Age) of HIBERIX, Control PRP-Ta, or DTaP-IPV/Hibb, ATP Cohort for Immunogenicityc
| Anti-PRP GMC | % Anti-PRP | % Anti-PRP | |||||
| (mcg/mL) (95% CI) |
≥0.15 mcg/mL (95% CI) |
≥1.0 mcg/mL (95% CI) |
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| Vaccine | n | Pre- | Post- | Pre- | Post- | Pre- | Post |
| HIBERIX | 329-336 | 0.50 (0.42, 0.59) |
48.78 (42.0, 56.66) |
75.1 (70.0, 79.7) |
100.0 (98.9, 100.0) |
32.2 (27.2, 37.6) |
99.1 (97.4, 99.8) |
| Control PRP-T | 226-236 | 0.47 (0.38, 0.57) |
40.29 (33.39, 48.63) |
76.1 (70.0, 81.5) |
99.6 (97.7, 100.0) |
27.0 (21.3, 33.3) |
97.9d (95.1, 99.3) |
| DTaP-IPV/Hib | 175-186 | 0.38 (0.30, 0.48) |
37.54 (30.53, 46.16) |
66.3 (58.8, 73.2) |
100.0 (98.0, 100.0) |
25.1 (18.9, 32.2) |
98.9e (96.2, 99.9) |
| a U.S.-licensed monovalent Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA). b U.S.-licensed DTaP-IPV/Hib Vaccine (Sanofi Pasteur Ltd.). c Study 1: NCT01000974. d HIBERIX was non-inferior to Control PRP-T for percent of subjects achieving anti-PRP ≥1.0 mcg/mL (lower limit of 97.5% CI on difference of HIBERIX minus Control PRP-T ≥predefined limit of -10%) at 1 month following the booster dose. e Analyses of anti-PRP immune responses following DTaP-IPV/Hib vaccination were exploratory. |
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In 6 additional clinical studies, the immune response to HIBERIX administered as a booster dose was evaluated in a total of 415 children aged 12 to 23 months. At the time of vaccination, 30 children were aged 12 to 14 months, 316 children were aged 15 to 18 months, and 69 children were aged 19 to 23 months. Among subjects, 43% to 60% were male. Among subjects for whom information on race/ethnicity was available, nearly all subjects were white. None of the studies included a comparator group that received a booster dose with a U.S.-licensed Haemophilus b Conjugate Vaccine. Characteristics of 3 of these studies are presented in Table 6.
Table 6. Characteristics of 3 Open-Label Booster Immunization Studies of HIBERIX
| Study | Country | Per-Protocol Immunogenicity Cohort n |
Priming History | Booster Vaccination with HIBERIX | |
| Age at Vaccination (months) | Concomitantly Administered Vaccinea | ||||
| 3 | Canada | 42 | DTaP-HBV-IPVb + Haemophilus b Conjugate Vaccinec at 2, 4, and 6 months of age | 16-18 | DTaP-HBVIPVb |
| 4 | Canada | 64 | DTaP-IPVd + HIBERIX at 2, 4, and 6 months of age | 16-19 | DTaP-IPVd |
| 5 | Germany | 108 | DTaP-HBVe + HIBERIX at 3, 4, and 5 months of age | 16-23 | DTaP-HBVe |
| a Administered at a separate site. b Non-U.S. formulation equivalent to PEDIARIX with the exception of containing 2.5 mg 2-phenoxyethanol per dose as preservative. In the U.S., PEDIARIX is approved for use as a 3-dose primary series; use as a fourth consecutive dose is not approved in the U.S. c U.S.-licensed Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA). d Non-U.S. formulation equivalent to KINRIX with the exception of containing 2.5 mg 2-phenoxyethanol per dose as preservative. In the U.S., KINRIX is approved for use as the fifth dose of DTaP and the fourth dose of IPV in children aged 4 to 6 years previously primed with approved dosing regimens of INFANRIX and/or PEDIARIX. The DTaP-IPV dosing regimen is not approved in the U.S. e Manufactured by GlaxoSmithKline Biologicals (not licensed in the U.S.). |
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Antibodies to PRP were measured in sera obtained immediately prior to and 1 month after booster vaccination with HIBERIX. Geometric mean concentrations and anti-PRP seroprotection rates are presented in Table 7.
Table 7. Anti-PRP GMCs and Seroprotection Rates prior to and 1 Month following a Booster Dose of HIBERIX, Per-Protocol Immunogenicity Cohort
| Study | n | Anti-PRP GMC | % Anti-PRP | % Anti-PRP | |||
| (mcg/mL) | ≥0.15 mcg/mL | ≥1.0 mcg/mL | |||||
| Pre- | Post- | Pre- | Post- | Pre- | Post- | ||
| 3a | 42 | 0.46 | 59.07 | 76.2 | 100 | 35.7 | 97.6 |
| 4b | 63-64 | 0.25 | 47.78 | 71.4 | 100 | 12.7 | 100 |
| 5c | 108 | 0.59 | 96.12 | 77.8 | 100 | 32.4 | 100 |
| GMC = Geometric mean antibody concentration. n = Number of children for whom serological results were available for the pre- and post-dose immunological evaluations. Studies 3, 4, and 5 correspond to Studies 3, 4, and 5, respectively in Table 6. a Canadian study in children aged 16 to 18 months who previously received 3 doses of DTaP-HBV-IPV and Haemophilus b Conjugate Vaccine (Control PRP-T) (Sanofi Pasteur SA). The booster dose of HIBERIX was coadministered with DTaP-HBV-IPV (a fourth consecutive dose of PEDIARIX is not approved in the U.S.). In this study, pre-vaccination sera may have been obtained up to 1 week prior to booster vaccination with HIBERIX. b Canadian study in children aged 16 to 19 months who previously received 3 doses of DTaP-IPV and HIBERIX. The booster dose of HIBERIX was coadministered with DTaP-IPV. The DTaP-IPV dosing regimen is not approved in the U.S. c German study in children aged 16 to 23 months who previously received 3 doses of DTaP-HBV (GlaxoSmithKline Biologicals, not licensed in the U.S.) and HIBERIX. The booster dose of HIBERIX was coadministered with DTaP-HBV. |
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In U.S. Study 1, subjects who received HIBERIX concomitantly with PEDIARIX (DTaP-HBV-IPV) and PCV13 at 2, 4, and 6 months of age had no evidence for reduced antibody responses relative to the response in control subjects administered Control PRP-T (Sanofi Pasteur SA) concomitantly with PEDIARIX (DTaP-HBV-IPV) and PCV13, to pertussis antigens (GMC to pertussis toxin, filamentous hemagglutinin, and pertactin), diphtheria toxoid (antibody levels ≥0.1 IU/mL), tetanus toxoid (antibody levels ≥0.1 IU/mL), poliovirus types 1, 2, and 3 (antibody levels ≥1:8 to each virus), PCV13 (antibody levels ≥0.2 mcg/mL and GMC to each serotype), or hepatitis B (anti-hepatitis B surface antigen ≥10 mIU/mL). The immune responses to PEDIARIX (DTaP-HBV-IPV) and PCV13 were evaluated 1 month following Dose 3. Subjects in both groups received ROTARIX at 2 and 4 months of age.
In U.S. Study 1, subjects who received a booster dose of HIBERIX concomitantly with INFANRIX at 15 to 18 months of age had no evidence for reduced antibody responses to pertussis antigens (GMC to pertussis toxin, filamentous hemagglutinin, and pertactin), diphtheria toxoid (antibody levels ≥0.1 IU/mL), and tetanus toxoid (antibody levels ≥0.1 IU/mL), relative to the responses in control subjects administered Control PRP-T (Sanofi Pasteur SA) concomitantly with INFANRIX.
In 7 additional studies, a booster dose of HIBERIX was administered concomitantly with non-U.S. formulations of INFANRIX, KINRIX, and PEDIARIX. Non-U.S. formulations of KINRIX and PEDIARIX were administered in dosing regimens not approved in the U.S.
Sufficient data are not available to confirm lack of interference in immune responses to vaccines other than INFANRIX administered concomitantly with a booster dose of HIBERIX.
REFERENCES
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3. Peltola H, Käythy H, Sivonen A, et al. Haemophilus influenzae type b capsular polysaccharide vaccine in children: A double-blind field study of 100,000 vaccinees 3 months to 5 years of age in Finland. Pediatrics. 1977;60:730-737.
4. Käythy H, Peltola H, Karanko V, et al. The protective level of serum antibodies to the capsular polysaccharide of Haemophilus influenzae type b. J Infect Dis. 1983;147:1100.
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