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Pfizer Documents (PHMPT/FDA)

Pfizer Bla Submission

Pfizer 16 Plus Documents

22

Document text

1 HIGHLIGHTS OF PRESCRIBING INFORMATION  
These highlights do not include all the information needed to use 
COM IRNATY safely and effectively. See full prescribing information for 
COMIRNATY. 
 
COMIRNATY (COVID- 19 Vaccine , mRNA) suspension for injection, for 
intramuscular use  
Initial U.S. Approval: YYYY 
 
 --------------------------- INDICATIONS AND USAGE  ----------------------------  
COMIRNATY is a vaccine indicated for active immunization to prevent 
coronavirus disease 2019 (COVID- 19) caused by severe acute respiratory 
syndrome coronavirus 2 (SARS CoV 2) in individuals 16  years of age and 
older.  (1) 
 
 ----------------------- DOSAGE AND ADMINISTRATION -----------------------  
• For intramuscular injection only.  (2.2)  
• COMIRNATY is administered intramuscularly as a series of 2 doses 
(0.3 mL each) 3 weeks apart.  (2.3)  
 
 --------------------- DOSAGE FORMS AND STRENGTHS  ----------------------  
Suspension for injection. After preparation, a single dose is 0.3  mL. (3) 
 
 ------------------------------ CONTRAINDICATIONS  ------------------------------  
Known history of a severe allergic reaction (e.g., anaphylaxis) to any 
component of COMIRNATY. (4) 
  ----------------------- WARNINGS AND PRECAUTIONS  -----------------------  
• Postmarketing data demonstrate increased risks of myocarditis and 
pericarditis, particularly  within 7 days following the second dose. (5. 2) 
• Syncope (fainting) may occur in association with administration of 
injectable vaccines, including COMIRNATY. Procedures should be in 
place to avoid injury from fainting.  (5.4) 
 
 ------------------------------ ADVERSE REACTIONS  ------------------------------  
• In clinical studies  of participants 16 through 55 years of age , the most 
commonly reported adverse reactions ( ≥10%) were pain at the injection 
site, fatigue, headache, muscle pain, chills, joint pain, fever , and 
injection site swelling . (6.1) 
• In clinical studies  of participants 56 years of age and older, the most 
commonly reported adverse reactions ( ≥10%) were pain at the injection 
site, fatigue, headache, muscle pain, chills, joint pain, injection site 
swelling , fever , and injection site redness . (6.1)  
 
To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at  
1-800-438-1985  or VAERS at 1 -800-822-7967 or http://vaers.hhs gov .  
 
See 17 for PATIENT COUNSELING INFORMATION.  
 
Revised: M/YYYY 
 
 
 
FULL PRESCRIBING INFORMATION: CONTENTS * 
 
1 INDICATIONS AND USAGE  
2 DOSAGE AND ADMINISTRATION 
2.1 Preparation for Administration  
2.2 Administration Information  
2.3 Vaccination Schedule  
3 DOSAGE FORMS AND STRENGTHS  
4 CONTRAINDICATIONS  
5 WARNINGS AND PRECAUTIONS  
5.1 Management of Acute Allergic Reactions  
5.2  Myocarditis and Pericarditis  
5.3 Syncope  
5.4 Altered Immunocompetence  
5.5 Limitation of Effectiveness  
6 ADVERSE REACTIONS  
6.1 Clinical Trials Experience  
6.2 Postmarketing Experience  
  
 
 
 
8 USE IN SPECIFIC POPULATIONS  
8.1 Pregnancy  
8.2 Lactation   
8.4 Pediatric Use  
8.5 Geriatric Use  
11 DESCRIPTION  
12 CLINICAL PHARMACOLOGY  
12.1 Mechanism of Action  
13 NONCLINICAL TOXICOLOGY  
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility  
14 CLINICAL STUDIES  
16 HOW SUPPLIED/STORAGE AND HANDLING  
17 PATIENT COUNSELING INFORMATION  
 
* Sections or subsections omitted from the full prescribing information are 
not listed . 
 
  
FDA-CBER-2021-5683-0651670
 
2 FULL PRESCRIBING INFORMATION 
 
1 INDICATIONS AND USAGE  
 
COMIRNATY is a vaccine indicated for a ctive immunization to prevent coronavirus disease 2019 (COVID-19) 
caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in individuals 16 years of age and 
older. 
 
2 DOSAGE AND ADMINISTRATION 
 
2.1 Preparation for Administration 
 
Prior to Dilution  
 
• COMIRNATY Multiple Dose Vial contains a volume of 0.45 mL, supplied as a frozen suspension that 
does not contain preservative. Each vial must be thawed and diluted prior to administration.  
• Vials may be thawed in the refrigerator [2ºC to 8ºC (35ºF to 46ºF)] or at room temperature [up to 25ºC (77ºF) ] [see How Supplied/Storage and Handling (16)] . 
• Refer to thawing instructions in the panels below. 
 
Dilution  
 
• Dilute the vial contents using 1.8 mL of sterile 0.9% Sodium Chloride Injection, USP to form COMIRNATY. Do not add more than 1.8 mL of diluent. 
• ONLY use sterile 0.9% Sodium Chloride Injection, USP as the diluent. Do not use bacteriostatic 0.9% 
Sodium Chloride Injection or any other diluent. 
• Vials of sterile 0.9% Sodium Chloride Injection, USP are provided but shipped separately. Use the provided diluent or an alternate brand of sterile 0.9% Sodium Chloride Injection, USP as the diluent. 
• Provided diluent vials are single-use only and should be discarded after 1.8 mL is withdrawn. Do not use provided diluent vials to dilute multiple vials of COMIRNATY.  
• After dilution , 1 vial contains 6 doses of 0.3 mL  each .  
• Refer to dilution and dose preparation instructions in the panels below. 
 
THAWING PRIOR TO DILUTION 
 • Thaw vial(s) of COMIRNATY  before dilution either 
by: 
o Allowing vial(s) to thaw in the refrigerator [2ºC to 8ºC (35ºF to 46ºF)]. A carton of vials may take up to 3 hours to thaw, and thawed vials can be stored in the refrigerator for up to 1 month.  
o Allowing vial(s) to sit at room temperature [up to 25ºC (77ºF)] for 30 minutes. 
• Using either thawing method, vials must reach room temperature before dilution and must be diluted 
within 2 hours.  
FDA-CBER-2021-5683-0651671
 
3  
 • Before dilution invert vaccine vial gently 10 times.  
• Do not shake.  
• Inspect the liquid in the vial prior to dilution. The 
liquid is a white to off-white suspension and may contain  white to off-white opaque amorphous 
particles . 
• Do not use if liquid is discolored or if other particles are observed. 
DILUTION 
 
 • ONLY use sterile 0.9% Sodium Chloride Injection, USP as the diluent. 
• Using aseptic technique, withdraw 1.8 mL of diluent into a transfer syringe (21 -gauge or narrower 
needle).  
• Cleanse the vaccine vial stopper with a single- use 
antiseptic swab.  
• Add 1.8 mL of sterile 0.9% Sodium Chloride Injection, USP into the vaccine vial . 
 
 • Equalize vial pressure before removing the needle from the vial by withdrawing 1.8 mL air into the empty diluent syringe. 
FDA-CBER-2021-5683-0651672
 
4  
 • Gently invert the vial containing the COMIRNATY 
10 times to mix.  
• Do not shake. 
• Inspect the vaccine in the vial.  
• The vaccine will be an off -white suspension. Do not 
use if vaccine is discolored or contains particulate matter.  
 • Record the date and time of dilution on the COMIRNATY vial label.  
• Store between 2°C to 25°C (35°F to 77°F).  
• Discard any unused vaccine 6 hours after dilution. 
 
PREPARATION OF INDIVIDUAL 0.3  mL DOSES OF COMIRNATY 
 
 • Using aseptic technique, cleanse the vial stopper 
with a single -use antiseptic swab, and withdraw 
0.3 mL  of COMIRNATY preferentially using low 
dead -volume syringes and/or needles. 
• Each dose must contain 0.3 mL of vaccine.  
• If the amount of vaccine remaining in a single vial cannot provide a full dose of 0.3 mL, discard the vial and any excess volume.  
• Administer immediately.  
 
FDA-CBER-2021-5683-0651673
 
5 2.2 Administration Information  
 
For intramuscular injection only.  Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Visually inspect each dose in the dosing syringe prior to administration. The vaccine will be an  off-white suspension. During the visual inspection,  
• verify the final dosing volume of 0.3 mL. 
• confirm there are no particulates and that no discoloration is observed. 
• do not administer if vaccine is discolored or contains particulate matter. 
 After dilution, vials of COMIRNATY contain 6 doses of 0.3 mL of vaccine. Low dead -volume syringes and/or 
needles can be used to extract 6 doses from a single vial. If standard syringes and needles are used, there may not be sufficient volume to extract a sixth dose from a single vial. Irrespective of the type of syringe and needle, 
• each dose must contain 0.3 mL of vaccine.  
• if the amount of vaccine remaining in the vial cannot provide a full dose of 0.3 mL,  discard the vial and 
any excess volume.  
• do not pool excess vaccine from multiple vials.  
 2.3 Vaccination Schedule  
 COMIRNATY is administered intramuscularly as a series of 2 doses (0.3 mL each) 3 weeks apart.  
 There are no data available on the interchangeability of COMIRNATY with other COVID -19 vaccines to complete 
the vaccination series.  Individuals who have received 1 dose of COMIRNATY should receive a second dose of 
COMIRNATY to complete the vaccination series.  
 
3 DOSAGE FORMS AND STRENGTHS  
 
COMIRNATY is a suspension for injection. After preparation, a single dose is 0.3 mL.  
 
4 CONTRAINDICATIONS  
 
Do not administer COMIRNATY to individuals with known history of a severe allergic reaction (e.g., anaphylaxis) to any component of the COMIRNATY [s ee Description (1 1)]. 
 
5 WARNINGS AND PRECAUTIONS  
 
5.1 Management of Acute Allergic Reactions  
 Appropriate medical treatment used to manage immediate allergic reactions must be immediately available in 
the event an acute anaphylactic reaction occurs following administration of COMIRNATY.   5.2 Myocarditis and Pericarditis  
 Postmarketing  data demonstrate increased risks of myocarditis and pericarditis, particularly within 7 days 
following the second dose. The observed risk has been highest in adolescent and young adult males under 40 years of age. Available  data from short- term follow -up suggest that most individuals have had resolution of 
symptoms. Information is not yet available about potential long-term sequelae. The CDC has published 
FDA-CBER-2021-5683-0651674
 
6 considerations for vaccination of individuals with a history of myocarditis or pericarditis  
(https://www.cdc.gov/vaccines/covid- 19/clinical -considerations/myocarditis.html ). 
 
5.3 Syncope  
 Syncope (fainting) may occur in association with administration of injectable vaccines, including COMIRNATY. Procedures should be in place to avoid injury from fainting.  5.4 Altered Immunocompetence  
 Immunocompromised persons, including individuals receiving immunosuppressant therapy, may have a diminished immune response to the COMIRNATY.  5.5
 Limitation of Effectiveness  
 COMIRNATY may not protect all vaccine recipients.  
 
6 ADVERSE REACTIONS  
 In clinical studies with a data cut-off of March 13, 2021, the most commonly reported ( ≥10%) adverse reactions 
in participants 16 through 55 years of age following any dose w ere pain at the injection site ( 88.6%), fatigue 
(70.1%), headache (64.9%), muscle pain (45.5%), chills (41.5%), joint pain (27.5%), fever (17.8%), and injection site swelling (10.6%).  In clinical studies with a data cut-off of March 13, 2021, the most commonly reported ( ≥10%) adverse reactions 
in participants 56 years of age and older following any dose w ere pain at the injection site ( 78.2%), fatigue 
(56.9%), headache, (45.9%), muscle pain (32.5%), chills (24.8%), joint pain (21.5%), injection site swelling (11.8%), fever (11.5%), and injection site redness (10.4%).  In clinical studies with a data cut-off of March 13, 2021, the adverse reactions occurring in <10% of participants 16 through 55 years of age following any dose were injection site redness (9.5%), nausea (1.4%), malaise  (0.7%), lymphadenopathy (0.5%), asthenia (0.4%), decreased appetite ( 0.2% ), hyperhidrosis (0.1% ), 
lethargy (0.1%), and night sweats (0.1%).  In clinical studies with a data cut-off of March 13, 2021, the adverse reactions occurring in <10% of participants 56 years of age and older following any dose were nausea (1.0%) , malaise ( 0.5%), asthenia (0. 3%), 
lymphadenopathy (0.2%), lethargy (0.2%), decreased appetite ( 0.1%), hyperhidrosis (0.1%), and night sweats 
(0.1%).  
6.1 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 safety of COMIRNATY was evaluated in participants 16 years of age and older in 2 clinical studies 
conducted in Germany (Study 1), United States, Argentina, Brazil, Turkey, South Africa, and Germany 
(Study 2). Study BNT162 -01 (Study 1) was a Phase 2-part, dose- escalation trial that enrolled 60  participants , 
18 through 55 years of age and 36 participants, 5 6 through 85 years of age. Study C4591001 (Study 2) is a 
multicenter, multinational, randomized, saline placebo-controlled, observer-blind, dose-finding, vaccine 
FDA-CBER-2021-5683-0651675
 
7 candidate-selection and efficacy study that has enrolled approximately 44,047 participants 
(22,026 COMIRNATY; 22,021 placebo) 16 years of age or older (including 378 and 376 participants  
16 through 17 years of age in the vaccine and placebo groups, respectively). Study 2 also included 
200 participants with confirmed stable human immunodeficiency virus (HIV) infection; HIV -positive 
participants are included in safety population disposition but are summarized separately in safety analyses. Confirmed stable HIV infection  was defined as documented viral load <50  copies/mL and CD4 count 
>200 cells/mm
3 within 6  months before enrollment, and on stable antiretroviral therapy for at least 6 months.  
 
At the time of the analysis of the ongoing Study 2 with a data cut-off of March 13, 2021, there were 
25,651 (58.2%) participants (13,031 COMIRNATY and 12,620 placebo) 16 years of age and older followed for 
≥4 months after the second dose . 
 Participants 16 years and older in the reactogenicity subset were monitored for solicited local and systemic reactions and use of antipyretic medication after each vaccination in an electronic diary. Participants are being  
monitored for unsolicited adverse events, including serious adverse events, throughout the study [from Dose 1 through 1 month (all unsolicited adverse events) or 6 months (serious adverse events) after the last vaccination].  Demographic characteristics i n Study 2 were generally similar with regard to age, gender, race, and ethnicity 
among participants who received COMIRNATY and those who received placebo. Overall, among the total participants who received either COMIRNATY or placebo , 50.9% were male, 49.1% were female, 79.3% were 
16 through 64 years of age, 20.7% were 65 years of age and older, 82.0% were White, 9.6% were Black or 
African American, 25.9% were Hispanic/Latino, 4.3% were Asian, and 1.0% were American Indian or Alaska Native.  
 
Local and Systemic Adverse Reactions Solicited  in the Study 2 
 
Table 1 and Table 2 present the frequency and severity of reported solicited local and systemic reactions, 
respectively, within 7 days following each dose of COMIRNATY and placebo in the subset of participants 
16 through 55 years of age included in the safety population who were monitored for reactogenicity with an 
electronic diary.  
 
Table 3 and Table 4 present the frequency and severity of reported solicited local and systemic reactions, 
respectively, within 7 days of each dose of COMIRNATY and placebo for participants 56 years of age and 
older. 
 
In participants 16 through 55 years of age after receiving Dose 2, the mean duration of pain at the injection site 
was 2.5 days (range 1 to 70 days), for redness 2.2 days (range 1 to 9 days), and for swelling 2.1 days (range 1 to 
8 days) for participants in the COMIRNATY group. In participants 56 years of age and older after receiving 
Dose 2, the mean duration of pain at the injection site was 2.4 days (range 1 to 36 days), for redness 3.0 days 
(range 1 to 34 days), and for swelling 2.6 days (range 1 to 34 days) for participants in the COMIRNATY group.  
 
FDA-CBER-2021-5683-0651676
 
8 Table 1:  Study 2 – Frequency and Percentages of Participants with Solicited Local Reactions, by 
Maximum Severity, Within 7 Days After Each Dose – Participants 16 Through  55 Years of 
Age – Reactogenicity Subset of the Safety Population* 
 COMIRNATY  
Dose 1  
Na=2899 
nb (%) Placebo  
Dose 1  
Na=2908 
nb (%) COMIRNATY  
Dose 2  
Na=2682 
nb (%) Placebo  
Dose 2  
Na=2684 
nb (%) 
Rednessc  
Any (>2.0  cm) 156 (5.4)  28 (1.0)  151 (5.6)  18 (0.7)  
Mild  113 (3.9)  19 (0.7)  90 (3.4)  12 (0.4)  
Moderate  36 (1.2)  6 (0.2)  50 (1.9)  6 (0.2)  
Severe  7 (0.2)  3 (0.1)  11 (0.4)  0 
Swellingc 
Any (>2.0  cm) 184 (6.3)  16 (0.6)  183 (6.8)  5 (0.2)  
Mild  124 (4.3)  6 (0.2)  110 (4.1)  3 (0.1)  
Moderate  54 (1.9)  8 (0.3)  66 (2.5)  2 (0.1)  
Severe  6 (0.2)  2 (0.1)  7 (0.3)  0 
Pain at the injection sited 
Any 2426  (83.7)  414 (14.2)  2101  (78.3)  312 (11.6)  
Mild  1464  (50.5)  391 (13.4)  1274  (47.5)  284 (10.6)  
Moderate  923 (31.8)  20 (0.7)  788 (29.4)  28 (1.0)  
Severe  39 (1.3)  3 (0.1)  39 (1.5)  0 
Note s: Reactions were collected in the electronic diary (e -diary) from Day 1 to Day 7 after vaccination.  
No Grade 4 solicited local reactions were reported in participants 16 through 55 years of age.  
* Randomized participants in the safety analysis population  who received at least 1 dose of the study intervention.  Participants 
with chronic, stable HIV infection were excluded.  
a.  N = N umber of participants reporting at least 1 yes or no response for the specified reaction after the specified dose. The N for 
each reaction was the same, therefore, this information was included in the column header.  
b. n = N umber  of participants with the specified reaction.   
c. Mild: >2.0 to ≤5.0 cm; M oderate: >5.0 to ≤ 10.0 cm; S evere: >10.0 cm.  
d. Mild: does not interfere with activity; Moderate: interferes with activity; Severe: prevents daily activity.  
 
Table 2:  Study 2 – Frequency and Percentages of Participants with Solicited Systemic Reactions, by Maximum Severity, Within 7 Days After Each Dose – Participants 16 Through  55 Years of 
Age – Reactogenicity Subset of the Safety Population* 
 COMIRNATY  
Dose 1  
Na=2899 
nb (%) Placebo  
Dose 1  
Na=2908 
nb (%) COMIRNATY  
Dose 2  
Na=2682 
nb (%) Placebo  
Dose 2  
Na=2684 
nb (%) 
Fever  
≥38.0℃  119 (4.1)  25 (0.9)  440 (16.4)  11 (0.4)  
≥38.0℃ to 38.4℃  86 (3.0)  16 (0.6)  254 (9.5)  5 (0.2)  
>38.4℃ to 38.9℃  25 (0.9)  5 (0.2)  146 (5.4)  4 (0.1)  
>38.9℃ to 40.0℃  8 (0.3)  4 (0.1)  39 (1.5)  2 (0.1)  
>40.0℃  0 0 1 (0.0)  0 
Fatiguec 
Any 1431  (49.4)  960 (33.0)  1649  (61.5)  614 (22.9)  
Mild  760 (26.2)  570 (19.6)  558 (20.8)  317 (11.8)  
Moderate  630 (21.7)  372 (12.8)  949 (35.4)  283 (10.5)  
Severe  41 (1.4)  18 (0.6)  142 (5.3)  14 (0.5)  
FDA-CBER-2021-5683-0651677
 
9  COMIRNATY  
Dose 1  
Na=2899 
nb (%) Placebo  
Dose 1  
Na=2908 
nb (%) COMIRNATY  
Dose 2  
Na=2682 
nb (%) Placebo  
Dose 2  
Na=2684 
nb (%) 
Headachec 
Any 1262  (43.5)  975 (33.5)  1448  (54.0)  652 (24.3)  
Mild  785 (27.1)  633 (21.8)  699 (26.1)  404 (15.1)  
Moderate  444 (15.3)  318 (10.9)  658 (24.5)  230 (8.6)  
Severe  33 (1.1)  24 (0.8)  91 (3.4)  18 (0.7)  
Chillsc 
Any 479 (16.5)  199 (6.8)  1015  (37.8)  114 (4.2)  
Mild  338 (11.7)  148 (5.1)  477 (17.8)  89 (3.3)  
Moderate  126 (4.3)  49 (1.7)  469 (17.5)  23 (0.9)  
Severe  15 (0.5)  2 (0.1)  69 (2.6)  2 (0.1)  
Vomitingd 
Any 34 (1.2)  36 (1.2)  58 (2.2)  30 (1.1)  
Mild  29 (1.0)  30 (1.0)  42 (1.6)  20 (0.7)  
Moderate  5 (0.2)  5 (0.2)  12 (0.4)  10 (0.4)  
Severe  0 1 (0.0)  4 (0.1)  0 
Diarrheae 
Any 309 (10.7)  323 (11.1)  269 (10.0)  205 (7.6)  
Mild  251 (8.7)  264 (9.1)  219 (8.2)  169 (6.3)  
Moderate  55 (1.9)  58 (2.0)  44 (1.6)  35 (1.3)  
Severe  3 (0.1)  1 (0.0)  6 (0.2)  1 (0.0)  
New or worsened muscle painc 
Any 664 (22.9)  329 (11.3)  1055  (39.3)  237 (8.8)  
Mild  353 (12.2)  231 (7.9)  441 (16.4)  150 (5.6)  
Moderate  296 (10.2)  96 (3.3)  552 (20.6)  84 (3.1)  
Severe  15 (0.5)  2 (0.1)  62 (2.3)  3 (0.1)  
New or worsened joint painc 
Any 342 (11.8)  168 (5.8)  638 (23.8)  147 (5.5)  
Mild  200 (6.9)  112 (3.9)  291 (10.9)  82 (3.1)  
Moderate  137 (4.7)  55 (1.9)  320 (11.9)  61 (2.3)  
Severe  5 (0.2)  1 (0.0)  27 (1.0)  4 (0.1)  
Use of antipyretic or 
pain medicationf 805 (27.8)  398 (13.7)  1213  (45.2)  320 (11.9)  
Note s: Reactions  and use of antipyretic or pain medication were collected in the electronic diary (e -diary) from Day 1 to Day 7 after 
each dose.  
No Grade 4 solicited systemic reactions were reported in participants 16 through  55 years of age.  
* Randomized participants in the safety analysis population who received at least 1 dose of the study intervention.  Participants 
with chronic, stable HIV infection  were excluded.  
a. N = N umber of participants reporting at least 1 yes or no response for the specified reaction  after the specified dose.  The N for 
each reaction or use of antipyretic or pain medication was the same, therefore, this information  was included in the column 
header.  
b. n = Number of participants with the specified reaction.  
c. Mild: does not interfere with activity; M oderate: some interference with activity; S evere: prevents daily activity.  
d. Mild: 1 to 2 times in 24 hours; M oderate: >2 times in 24 hours; S evere: requires intravenous hydration.  
e. Mild: 2 to 3 loose stools in 24 hours; M oderate: 4 to 5 loose stools in 24 hours; S evere: 6 or more loose stools in 24 hours.  
f. Severity was not collected for use of antipyretic or  pain medication.  
 
FDA-CBER-2021-5683-0651678
 
10 Table 3:  Study 2 – Frequency and Percentages of Participants with Solicited Local Reactions, by 
Maximum Severity, Within 7 Days After Each Dose – Participants 56 Years of Age and Older  – Reactogenicity Subset of the Safety Population*  
 COMIRNATY  
Dose 1  
Na=2008 
nb (%) Placebo  
Dose 1  
Na=1989 
nb (%) COMIRNATY  
Dose 2  
Na=1860 
nb (%) Placebo  
Dose 2  
Na=1833 
nb (%) 
Rednessc  
Any (>2 .0 cm) 106 (5.3)  20 (1.0)  133 (7.2)  14 (0.8)  
Mild  71 (3.5)  13 (0.7)  65 (3.5)  10 (0.5)  
Moderate  30 (1.5)  5 (0.3)  58 (3.1)  3 (0.2)  
Severe  5 (0.2)  2 (0.1)  10 (0.5)  1 (0.1)  
Swellingc 
Any (>2 .0 cm) 141 (7.0)  23 (1.2)  145 (7.8)  13 (0.7)  
Mild  87 (4.3)  11 (0.6)  80 (4.3)  5 (0.3)  
Moderate  52 (2.6)  12 (0.6)  61 (3.3)  7 (0.4)  
Severe  2 (0.1)  0 4 (0.2)  1 (0.1)  
Pain at the injection sited 
Any (>2 .0 cm) 1408  (70.1)  185 (9.3)  1230  (66.1)  143 (7.8)  
Mild  1108  (55.2)  177 (8.9)  873 (46.9)  138 (7.5)  
Moderate  296 (14.7)  8 (0.4)  347 (18.7)  5 (0.3)  
Severe  4 (0.2)  0 10 (0.5)  0 
Note s: Reactions were collected in the electronic diary (e -diary) from Day 1 to Day 7 after vaccination.   
No Grade 4 solicited local reactions were reported in participants 56 years of age and older.  
* Randomized participants in the safety analysis population who received at least 1 dose of the study intervention.  Participants 
with chronic, stable HIV infection  were excluded.  
a. N = Number of participants reporting at least 1 yes or no response for the specified reaction after the specified dose. The N for 
each reaction was the same, therefore, the information was included in the column header.  
b. n = Number of participants with the specified reaction.  
c. Mild: >2.0 to ≤5.0 cm; M oderate: >5.0 to ≤ 10.0 cm; S evere: >10.0 cm.  
d.  Mild: does not interfere with activity; Moderate: interferes with activity; Severe: prevents daily activity.  
 
Table 4: Study 2 – Frequency and Percentages of Participants with Solicited Systemic Reactions, by Maximum Severity, Within 7 Days After Each Dose – Participants 56 Years of Age and Older  – Reactogenicity Subset of the Safety Population*  
 COMIRNATY  
Dose 1  
Na=2008 
nb (%) Placebo  
Dose 1  
Na=1989 
nb (%) COMIRNATY  
Dose 2  
Na=1860 
nb (%) Placebo  
Dose 2  
Na=1833 
nb (%) 
Fever  
≥38.0℃  26 (1.3)  8 (0.4)  219 (11.8)  4 (0.2)  
≥38.0℃ to 38.4℃  23 (1.1)  3 (0.2)  158 (8.5)  2 (0.1)  
>38.4℃ to 38.9℃  2 (0.1)  3 (0.2)  54 (2.9)  1 (0.1)  
>38.9℃ to 40.0℃  1 (0.0)  2 (0.1)  7 (0.4)  1 (0.1)  
>40.0℃  0 0 0 0 
FDA-CBER-2021-5683-0651679
 
11  COMIRNATY  
Dose 1  
Na=2008 
nb (%) Placebo  
Dose 1  
Na=1989 
nb (%) COMIRNATY  
Dose 2  
Na=1860 
nb (%) Placebo  
Dose 2  
Na=1833 
nb (%) 
Fatiguec 
Any 677 (33.7)  447 (22.5)  949 (51.0)  306 (16.7)  
Mild  415 (20.7)  281 (14.1)  391 (21.0)  183 (10.0)  
Moderate  259 (12.9)  163 (8.2)  497 (26.7)  121 (6.6)  
Severe  3 (0.1)  3 (0.2)  60 (3.2)  2 (0.1)  
Grade 4  0 0 1 (0.1)  0 
Headachec 
Any 503 (25.0)  363 (18.3)  733 (39.4)  259 (14.1)  
Mild  381 (19.0)  267 (13.4)  464 (24.9)  189 (10.3)  
Moderate  120 (6.0)  93 (4.7)  256 (13.8)  65 (3.5)  
Severe  2 (0.1)  3 (0.2)  13 (0.7)  5 (0.3)  
Chillsc 
Any 130 (6.5)  69 (3.5)  435 (23.4)  57 (3.1)  
Mild  102 (5.1)  49 (2.5)  229 (12.3)  45 (2.5)  
Moderate  28 (1.4)  19 (1.0)  185 (9.9)  12 (0.7)  
Severe  0 1 (0.1)  21 (1.1)  0 
Vomitingd 
Any 10 (0.5)  9 (0.5)  13 (0.7)  5 (0.3)  
Mild  9 (0.4)  9 (0.5)  10 (0.5)  5 (0.3)  
Moderate  1 (0.0)  0 1 (0.1)  0 
Severe  0 0 2 (0.1)  0 
Diarrheae 
Any 168 (8.4)  130 (6.5)  152 (8.2)  102 (5.6)  
Mild  137 (6.8)  109 (5.5)  125 (6.7)  76 (4.1)  
Moderate  27 (1.3)  20 (1.0)  25 (1.3)  22 (1.2)  
Severe  4 (0.2)  1 (0.1)  2 (0.1)  4 (0.2)  
New or worsened muscle painc 
Any 274 (13.6)  165 (8.3)  537 (28.9)  99 (5.4)  
Mild  183 (9.1)  111 (5.6)  229 (12.3)  65 (3.5)  
Moderate  90 (4.5)  51 (2.6)  288 (15.5)  33 (1.8)  
Severe  1 (0.0)  3 (0.2)  20 (1.1)  1 (0.1)  
New or worsened joint painc 
Any 175 (8.7)  124 (6.2)  353 (19.0)  72 (3.9)  
Mild  119 (5.9)  78 (3.9)  183 (9.8)  44 (2.4)  
Moderate  53 (2.6)  45 (2.3)  161 (8.7)  27 (1.5)  
Severe  3 (0.1)  1 (0.1)  9 (0.5)  1 (0.1)  
Use of antipyretic or 
pain medicationf 382 (19.0)  224 (11.3)  688 (37.0)  170 (9.3)  
Note s: Reactions  and use of antipyretic or pain medication were collected in the electronic diary (e -diary) from Day 1 to Day 7 after 
each dose.  
The only Grade 4 solicited systemic reaction reported in participants 56 years of age and older was fatigue.  
* Randomized participants in the safety analysis population who received at least 1 dose of the study intervention.  Participants 
with chronic, stable HIV infection  were excluded.  
a. N = Number of participants reporting at least 1 yes or no response for the specified reaction after the specified  dose.  N for each 
reaction or use of antipyretic or pain medication was the same, therefore was included in the column header.  
b. n = Number of participants with the specified reaction.  
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12  COMIRNATY  
Dose 1  
Na=2008 
nb (%) Placebo  
Dose 1  
Na=1989 
nb (%) COMIRNATY  
Dose 2  
Na=1860 
nb (%) Placebo  
Dose 2  
Na=1833 
nb (%) 
c. Mild: does not interfere  with activity; Moderate: some interference with activity; Severe: prevents daily activity ; Grade 4 
reactions were defined in the clinical study protocol as emergency room visit or hospitalization for severe fatigue, severe 
headache, severe chills, severe muscle pain, or severe joint pain.  
d. Mild: 1 to 2 times in 24 hours; M oderate: >2 times in 24 hours; S evere: requires intravenous hydration; Grade 4 emergency visit 
or hospitalization for severe vomiting. 
e. Mild: 2 to 3 loose stools in 24 hours; M oderat e: 4 to 5 loose stools in 24 hours; S evere: 6 or more loose stools in 24 hours ; 
Grade  4: emergency room or hospitalization for severe diarrhea.  
f. Severity was not collected for use of antipyretic or pain medication.  
 
In participants with chronic,  stable HIV infection  after receiving Dose 2,  local reactions and systemic events 
were similar to those observed for all participants 16  years of age and older by severity, onset day, and median 
duration. The frequency of pain at the injection site was similar after Dose 1 compared with Dose 2 of 
COMIRNATY (63.0% v ersus 53.3%). The frequency of redness and swelling was similar after Dose 1 
compared with Dose 2 of COMIRNATY (redness: 3.7% versu s 6.7%; swelling: 5.6% versu s 8.3%, 
respectively). There was 1 (1.7%) severe reaction (pain at the injection site) reported after Dose 2 of COMIRNATY and no Grade 4 local reactions were reported. Fever, headache, chills, and joint pain increased in frequency from Dose 1 to Dose 2 while fatigue, vomiting, diarrhea, and muscle pain were similar after each dose of COMIRNATY. There were no severe systemic events after Dose 1 of COMIRNATY but after Dose 2, there was 1 (1.7%) severe fever (>38.9°C to 40.0°C), 3 (5.0%) participants with severe fatigue, 2 (3.3%) participants with severe headache, 1 (1.7%) participant with severe chills, and 1 (1.7%) participant with severe diarrhea. There were no G rade 4 systemic events reported after  either dose. 
 
Unsolicited Adverse Events 
 
Upon issuance of the EUA for COMIRNATY, participants were unblinded to offer placebo participants 
COMIRNATY. Unblinded participants originally randomized to COM IRNATY and placebo recipients 
administered COMIRNATY continued to be followed for unsolicited adverse events  including serious adverse 
events , throughout the study [from Dose 1 of COMIRNATY through 1 month (all unsolicited adverse events) 
and 6 months (serious adverse events) after the last vaccination].  Adverse events are reported as incidence rates 
per 100 person-years to account for the variable exposure since unblinding began in a phased manner for 
participants in the study. Adverse events detailed below for participants 16 years of age and older are for the 
placebo -controlled blinded follow-up period up to the participants’ unblinding dates. 
 
Serious Adverse Events  
 
In Study 2, among participants 16 through 55 years of age who had received at least 1 dose of vaccine or 
placebo ( COMIRNATY =12,995; placebo = 13,026), serious adverse events from Dose 1 up to the participant 
unblinding date in ongoing follow-up were reported at an incidence rate of 2.1 per 100 person-years among 
COMIRNATY  recipients and 2.4 per 100 person-years among placebo recipients. In a similar analysis, in 
participants 56 years of age and older ( COMIRNATY =8931, placebo = 8895), serious adverse events were 
reported at an incidence rate of 4.9 per 100 person- years among COMIRNATY recipients and 4.6 per 
100 person-years among placebo recipients who received at least 1 dose of COMIRNATY or placebo, 
respectively. In these analyses, 58.2% of study participants had at least 4 months of follow-up after Dose 2. 
Among participants with confirmed stable HIV infection serious adverse events from Dose 1 up to the 
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13 participant unblinding date in ongoing follow-up were reported at an incidence rate of 6.6 per 100 person- years 
among COMIRNATY recipients and 6.9 per 100 person- years among placebo recipients.  
 
There were no notable patterns between treatment groups for specific categories of serious adverse events 
(including neurologic, neuro-inflammatory, and thrombotic events) that would suggest a causal relationship to 
COMIRNATY. 
 
Non- Serious Adverse Events  
 
Overall in Study 2 in which 12,995 participants 16 through 55 years of age received COMIRNATY and 
13,026 participants received placebo , all events, which include non-serious adverse events from Dose 1 up to 
the participant unblinding date in ongoing follow- up were reported at an incidence rate of 88.4 per 
100 person-years among participants who received COMIRNATY and 43.5 per 100 person-years among 
participants in the placebo group, for participants who received at least 1 dose. In a similar analysis, in 
participants 56 years of age and older ( COMIRNATY = 8931, placebo = 8895), all events, which include 
non-seriou s adverse events were reported at an incidence rate of 75.7 per 100 person-years among participants 
who received COMIRNATY and 43.3 per 100 person-years among participants in the placebo group, for 
participants who received at least 1  dose. Among participants with confirmed stable HIV infection, all events, 
which include non-serious adverse events from Dose 1 up to the participant unblinding date in ongoing 
follow-up were reported at an incidence rate of 95.8 per 100 person-years among participants who received 
COMIRNATY and 52.0 per 100 person-years among participants in the placebo group, for participants who 
received at least 1 dose.  
 
In these analyses, 58.2% of study participants had at least 4 months of follow-up after Dose 2. The higher 
frequency of reported unsolicited non- serious adverse events among COMIRNATY recipients (inclusive of 
stable HIV infection) compared to placebo recipients was primarily attributed to local and systemic adverse 
events reported during the first 7 days following each dose of vaccine that are consistent with adverse reactions 
solicited among participants in the reactogenicity subset and presented in Table  3 and Table 4.  
 
From Dose 1 up to the participant unblinding date, reports of lymphadenopathy were imbalanced with notably 
more cases in the COMIRNATY group (87) v ersus the placebo group (8).  
 
Throughout the placebo-controlled safety follow-up period to date, Bell’s palsy (facial paralysis) was reported 
by 4 participants in the COMIRNATY group and 2 participants in the placebo group. Onset of facial paralysis 
was Day 37 after Dose 1 (participant did not receive Dose 2) and Days 3, 9, and 48 after Dose 2. In the placebo 
group the onset of facial paralysis was Day 32 and Day 102. Currently available information is insufficient to 
determine a causal relationship with the vaccine. There were no other notable patterns or numerical imbalances 
between treatment groups for specific categories of non -serious adverse events (including other neurologic or 
neuro-inflammatory, and thrombotic events) that would suggest a causal relationship to COMIRNATY. 
 
6.2 Postmarketing Experience  
 
The following adverse reactions have been identified during postmarketing use of COMIRNATY, including 
under Emergency Use Authorization. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to rel iably estimate their frequency or establish a causal relationship to 
vaccine exposure.  
 
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14 Cardiac Disorders: myocarditis, pericarditis  
Gastrointestinal Disorders: diarrhea, vomiting  
Immune System Disorders: severe allergic reactions, including anaphylaxis, and other hypersensitivity reactions 
(e.g., rash, pruritus, urticaria, angioedema)  
Musculoskeletal and Connective Tissue Disorders: pain in extremity (arm) 
 
8 USE IN SPECIFIC POPULATIONS  
 
8.1 Pregnancy  
 
Risk Summary   
 All pregnancies have a risk of birth defect, loss, or other adverse outcomes. In the US general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Available data on COMIRNATY administered to pregnant women are insufficient to inform vaccine-associated risks in pregnancy.   A developmental toxicity stud y has been performed in female rats administered the equivalent of a single 
human dose of COMIRNATY on four occasions, twice prior to mating and twice during gestation. These studies revealed no evidence of harm to the fetus due to the vaccine ( see Animal Data ). 
 
Data  
 Animal Data  
 In a developmental toxicity study, 0.06 mL of a vaccine formulation containing the same quantity of 
nucleoside-modified messenger ribonucleic acid (mRNA) (30 mcg) and other ingredients included in a single human dose of COMIRNATY was administered to female rats by the intramuscular route on 4 occasions: 21 and 14 days prior to mating, and on gestation days 9 and 20. No vaccine- related adverse effects on female 
fertility, fetal development, or postnatal development were reported in the study.   
 
8.2 Lactation  
 
Risk Summary  
 It is not known whether COMIRNATY is excreted in human milk. Data are not available to assess the effects of 
COMIRNATY on the breastfed infant or on milk production/excretion. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for COMIRNATY and any potential adverse effects on the breastfed child from COMIRNATY or from the underlying maternal condition. For preventive vaccines, the underlying maternal condition is susceptibility to disease preve nted by the vaccine.  
 
8.4 Pediatric Use  
 Safety and effectiveness of COMIRNATY in individuals 16 through 17 years of age is based on safety and effectiveness data in this age group and in adults [see Adverse Reactions (6) and Clinical Studies (14.1)] . 
 The safety and effectiveness of COMIRNATY in individuals younger than 16 years of age have not been established.  
 
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15 8.5 Geriatric Use  
 
Of the total number of COMIRNATY recipients in Study 2 as of March 13, 2021 (N  = 22,026), 
20.7% (n  = 4552) were 65 years of age and older and 4.2% (n  = 925) were 75 years of age and older  [see 
Clinical Studies (14.1)] . No overall differences in safety or effectiveness were observed between these 
recipients  and younger recipients.  
 
11 DESCRIPTION  
 
COMIRNATY (COVID -19 Vaccine, mRNA) is a sterile suspension for injection for intramuscular use. 
COMIRNATY is supplied as a frozen suspension in multiple dose vials; each vial must be diluted with 1.8 mL 
of sterile 0.9% Sodium Chloride Injection, USP prior to use to form the vaccine. Each dose of COMIRNATY contains 30 mcg of a nucleoside- modified messenger RNA ( mRNA) encoding the viral spike (S) glycoprotein 
of SARS -CoV-2.  
 Each dose of the COMIRNATY also includes the following ingredients: lipids (0.43 mg ((4-hydroxybutyl)azanediyl)bis(hexane-6,1- diyl)bis(2 -hexyldecanoate), 0.05 mg 2-(polyethylene 
glycol2000)- N,N-ditetradecylacetamide, 0.09 mg 1,2-distearoyl- sn-glycero-3-phosphocholine, and 0.2 mg 
cholesterol), 0.01 mg potassium chloride, 0.01 mg monobasic potassium phosphate, 0.36 mg sodium chloride, 0.07 mg dibasic sodium phosphate dihydrate, and 6 mg sucrose. The diluent (0.9% Sodium Chloride Injection, USP) contributes an additional 2.16 mg sodium chloride per dose. 
 COMIRNATY does not contain preservative.   The vial stoppers are not made with natural rubber latex.  
 
12 CLINICAL PHARMACOLOGY 
 
12.1 Mechanism of Action  
 
The nucleoside-modified m RNA in COMIRNATY is formulated in lipid particles, which enable delivery of the 
mRNA into host cells to  allow expression of the SARS-CoV-2 S antigen. The vaccine elicits an immune 
response to the S antigen, which protects against COVID-19. 
 
13 NONCLINICAL TOXICOLOGY 
 
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility  
 
COMIRNATY has not been evaluated for the potential to cause carcinogenicity, genotoxicity, or impairment of 
male fertility. In a developmental toxicity study  in rats with COMIRNATY. T here were no vaccine- related 
effects on female fertility [see Use in Special Populations (8.1)] . 
 
14 CLINICAL STUDIES  
 
Efficacy in Participants 16 Years of Age and Older   
 Study 2 is a multicenter, multinational, randomized, placebo -controlled, observer-blind, dose-finding, vaccine 
candidate–selection, and efficacy study in participants 12 years of age and older. Randomization was stratified by age: 12 through 15 years of age, 16 through 55 years of age, or 56 years of age and older, with a minimum of 40% of participants in the ≥56-year stratum. The study excluded participants who were immunocompromised 
FDA-CBER-2021-5683-0651684
 
16 and those who had previous  clinical or microbiological diagnosis of COVID-19. Participants with preexisting 
stable disease, defined as disease not requiring significant change in therapy or hospitalization for worsening 
disease during the 6 weeks before enrollment, were included as were participants with known stable infection with HIV, hepatitis C virus (HCV), or hepatitis B virus (HBV).   In Study 2, based on data accrued through March 13, 2021, approximately 44,000 participants 16 years of age and older were randomized equally and received 2 doses of COMIRNATY or placebo. Participants are planned to be followed for up to 24 months, for assessments of safety and efficacy against COVID-19.   The population for the analysis of the primary efficacy endpoint included, 36,621 participants 12 years of age and older (18,242 in the COMIRNATY group and 18,379 in the placebo group) who did not have evidence of 
prior infection wit h SARS -CoV-2 through 7 days after the second dose. Overall , among the total participants 
who received COMIRNATY or placebo , 51.4% or 50.5% were male and 4 8.6% or 49.5% were female, 4.8% or 
4.6% were 12 through 15 years of age, 75.1% or 75.1% were 16 through 64 years of age, 20.1% or 20.3% were 65 years of age and older, 16.1% or 16.3% were 65  through 74 years of age, 4.0% or 4.0% 75 years of age and 
older, 82.9% or 83.1% were White, 8.5 % or 8.6% were Black or African American, 0.9% or 0.9% were 
American Indian or Alaska Native, 4.6% or 4.5% were Asian, 0.3% or 0.1 % Native Hawaiian or other Pacific 
Islander , 24.9% or 24.6% were Hispanic/Latino , 74.6% or 74.8% were non -Hispanic/Latino,  0.5% or 0.5% did 
not report ethnicity, 44.6% or 44.4% had comor bidities  [participants  who have 1 or more comorbidities that 
increase the risk of severe COVID -19 disease: defined as subjects who had at least one of the Charlson 
comorbidity index category or body mass index ( BMI ) ≥30 kg/m
2 (16 years of age and older ) or BMI ≥95th 
percentile (12 through 15 years of age) ], respectively.  The mean age at vaccination was 48.3 or 48.2 years and 
median age was 50.0 or 50.0 in participants who received COMIRNATY or placebo , respectively.   
 
Efficacy  Against COVID-19 
 The population in the protocol pre- specified primary efficacy analysis included all participants 12 years of age 
and older who had been enrolled from July 27, 2020, and followed for the development of COVID-19 through November 14, 2020. Participants 18 through 55 years of age and 56 years of age and older began enrollment from July 27, 2020, 16 through 17 years of age began enrollment from September 16, 2020, and 12 through 15 years of age began enrollment from October 15, 2020.   
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17 The vaccine efficacy information is presented in Table 5. 
 Table 5: Vaccine Efficacy – First COVID-19 Occurrence From 7 Days After Dose 2, by Age Subgroup – Participants  Without Evidence of Infection and Participants  With or Without 
Evidence of Infection Prior to 7 Days After Dose 2 – Evaluable Efficacy (7 Days) Population 
First COVID -19 occurrence from 7 days after Dose 2 in participants without evidence of prior 
SARS -CoV -2 infection * 
Subgroup  COMIRNATY  
Na=18,198 
Cases  
n1b 
Surveillance Timec (n2d) Placebo  
Na=18,325 
Cases  
n1b 
Surveillance Timec (n2d) Vaccine Efficacy %  
(95% CI)  
All participantse 8 
2.214 (17,411)  162 
2.222 (17,511)  95.0 
(90.3, 97.6)f 
16 to 64 years  7 
1.706 (13,549)  143 
1.710 (13,618)  95.1 
(89.6, 98.1)g 
65 years and older  1 
0.508 (3848)  19 
0.511 (3880)  94.7 
(66.7, 99.9)g 
65 to 74 years  1 
0.406 (3074)  14 
0.406 (3095)  92.9 
(53.1, 99.8)g 
75 years  and older  0 
0.102 (774)  5 
0.106 (785)  100.0  
(-13.1, 100.0)g 
First COVID -19 occurrence from  7 days after Dose 2 in participants  with or without * evidence of prior 
SARS -CoV -2 infection  
Subgroup  COMIRNATY  
Na=19,965 
Cases  
n1b 
Surveillance Timec (n2d) Placebo  
Na=20,172 
Cases  
n1b 
Surveillance Timec (n2d) Vaccine Efficacy %  
(95% CI)  
All participantse 9 
2.332 (18,559)  169 
2.345 (18,708)  94.6 
(89.9, 97.3)f 
16 to 64 years  8 
1.802 (14,501)  150 
1.814 (14,627)  94.6 
(89.1, 97.7)g 
65 years and older  1 
0.530 (4044)  19 
0.532 (4067)  94.7 
(66.8, 99.9)g 
65 to 74 years  1 
0.424 (3239)  14 
0.423 (3255)  92.9 
(53.2, 99.8)g 
75 years  and older  0 
0.106 (805)  5 
0.109 (812)  100.0  
(-12.1, 100.0)g 
Note: Confirmed cases were determined by Reverse Transcription -Polymerase Chain Reaction (RT -PCR) and at least 1 symptom 
consistent with COVID -19 (symptoms included: fever; new or increased cough; new or increased shortness of breath; chills; new or 
increased muscle pain; new loss of taste or smell; sore throat; diarrhea; vomiting).  
* Participants who had no evidence of past SARS -CoV-2 infection (i.e., N -binding antibody [serum] negative at Visit 1 and 
SARS -CoV -2 not detected by NAAT [n asal swab] at Visits 1 and 2), and had negative NAAT (nasal swab) at any unscheduled 
visit prior to 7 days after Dose 2 were included in the analysis.  
a. N = Number of participants in the specified group.  
b. n1 = Number of participants meeting the endpoint definition.  
c. Total surveillance time in 1000 person -years for the given endpoint across all participants within each group at risk for the 
endpoint. Time period for COVID -19 case accrual is from 7 days after Dose 2 to the end of the surveillance period . 
d. n2 = Number of participants at risk for the endpoint.  
e. No confirmed cases were identified in participants 12 to 15 years of age.  
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18 f. Two-sided credible interval for vaccine efficacy was calculated using a beta -binomial model with a beta (0.700102, 1)  prior for 
θ=r(1 -VE)/(1+r(1 -VE)), where r is the ratio of surveillance time in the active vaccine group over that in the placebo group.  
g. Two-sided confidence interval (CI) for vaccine efficacy is derived based on the Clopper and Pearson method adjusted t o the 
surveillance time.  
 
The population for the updated vaccine efficacy analysis included participants 16 years of age and older who had been enrolled from July 27, 2020, and followed for the development of COVID-19 during blinded placebo -controlled follow-up through March 13, 2021, representing up to 6 months of follow-up after Dose 2. 
Overall , 59.2% of participants in the COMIRNATY group and 57.3% of participants in the  placebo group had 
≥4 months of follow- up time after Dose 2 in the blinded placebo- controlled follow -up period.  
 The updated vaccine efficacy information is presented in Table 6.  Table 6: Vaccine Efficacy – First COVID-19 Occurrence From 7 Days After Dose 2, by Age Subgroup – Participants  16 Years of Age and Older Without Evidence of Infection and 
Participants  With or Without Evidence of Infection Prior to 7 Days After Dose 2 – Evaluable 
Efficacy (7  Days) Population Dur ing the Placebo -Controlled Follow- up Period  
First COVID -19 occurrence from 7 days after Dose 2 in particip ants without evidence of prior 
SARS -CoV -2 infection*  
Subgroup  COMIRNATY  
Na=19,993 
Cases  
n1b 
Surveillance Timec (n2d) Placebo  
Na=20,118 
Cases  
n1b 
Surveillance Timec (n2d) Vaccine Efficacy %  
(95% CIe) 
All participantsf 77 
6.092 ( 19,711) 833 
5.857 ( 19,741) 91.1 
(88.8, 93.1) 
16 through 64 years  70 
4.859 (15,519)  709 
4.654  (15,515) 90.5 
(87.9, 92.7) 
65 years and older  7 
1.233 (4192)  124 
1.202 (4226)  94.5 
(88.3, 97.8) 
First COVID -19 occurrence from 7 days after Dose 2 in participants with or without* evidence of prior 
SARS -CoV -2 infection  
Subgroup  COMIRNATY  
Na=21,047 
Cases  
n1b 
Surveillance Timec (n2d) Placebo  
Na=21,210 
Cases  
n1b 
Surveillance Timec (n2d) Vaccine Efficacy %  
(95% CIe) 
All participants  81 
6.340 ( 20,533) 854 
6.110 (20 ,595) 90.9 
(88.5, 92.8) 
16 through 64 years  74 
5.073 (16,218)  726 
4.879 ( 16,269) 90.2 
(87.5, 92.4) 
65 years and older  7 
1.267 (4315)  128 
1.232 (4326)  94.7 
(88.7, 97.9) 
Note: Confirmed cases were determined by Reverse Transcription -Polymerase Chain Reaction (RT -PCR) and at least 1 symptom 
consistent with COVID -19 (symptoms included: fever; new or increased cough; new or increased shortness of breath; chills; new or 
increased muscl e pain; new loss of taste or smell; sore throat; diarrhea; vomiting).  
* Participants who had no evidence  of past SARS -CoV-2 infection (i.e., N -binding antibody [serum] negative at Visit 1 and 
SARS -CoV -2 not detected by NAAT [nasal swab] at Visits 1 and 2), and had negativ e NAAT (nasal swab) at any unscheduled visit 
prior to 7 days after Dose 2 were included in the analysis.  
a. N = Number of participants in the specified group.  
b. n1 = Number of participants meeting the endpoint definition.  
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19 c. Total surveillance time in 1000 person -years for the given endpoint across all participants within each group at risk for the endpoint. 
Time period for COVID -19 case accrual is from 7 days after Dose 2 to the end of the surveillance period.  
d. n2 = Number of participants at risk for the endpoint.  
e. Two-sided confidence interval (CI) for vaccine efficacy is derived b ased on the Clopper and Pearson method adjusted to the 
surveillance time.  
 
Subgroup analyses of the primary efficacy endpoint showed similar efficacy point estimates across genders, 
ethnic groups, geographies , and participants with medical comorbidities and obesity associated with high risk of 
severe COVID -19. 
 
Efficacy Against S evere COVID -19 
 
Updated efficacy analyses of secondary efficacy endpoints supported benefit of COMIRNATY in preventing severe COVID -19. Vaccine efficacy against severe COVID -19 is presented only for participants with or without 
prior SARS -CoV-2 infection (Table 7) as the COVID -19 case counts in participants without prior SARS-CoV-2 
infection were the same as those in participants with or without prior SARS-CoV-2 infection in both the COMIRNATY and placebo groups.   Table 7: Vaccine Efficacy – First Severe COVID- 19 Occurrence in Participants 16 Years of Age and 
Older With or Without* Prior SARS- CoV-2 Infection Based on Protocol
† or Centers for 
Disease Control and Prevention (CDC)‡ Definition  From 7 Days After Dose 2 – Evaluable 
Efficacy (7  Days) Population During  the Placebo -Controlled Follow- up 
Vaccine Efficacy – First Severe COVID -19 Occurrence  
 COMIRNATY  
Cases  
n1a 
Surveillance Timeb (n2c) Placebo  
Cases  
n1a 
Surveillance Timeb (n2c) Vaccine Efficacy %  
(95% CId) 
7 days after Dose 2d 1 
6.353 (20 ,540) 21 
6.237 (20 ,629) 95.3 
(70.9, 99.9)  
Vaccine Efficacy – First Severe COVID -19 Occurrence Based on CDC  Definition  
 COMIRNATY  
Cases  
n1a 
Surveillance Timeb (n2c) Placebo  
Cases  
n1a 
Surveillance Timeb (n2c) Vaccine Efficacy %  
(95% CId) 
7 days after Dose 2d 0 
6.345 ( 20,513) 31 
6.225 ( 20,593) 100 
(87.6, 100.0) 
Note: Confirmed cases were determined by Reverse Transcription -Polymerase Chain Reaction (RT -PCR) and at least 1 symptom 
consistent with COVID -19 (symptoms included: fever; new or increased cough; new or increased shortness of breath; chills; new or 
increased mu scle pain; new loss of taste or smell; sore throat; diarrhea; vomiting).  
* Participants who had no evidence of past SARS -CoV-2 infection (i.e., N -binding antibody [serum] negative at Visit 1 and 
SARS -CoV -2 not detected by NAAT [nasal swab] at Visits 1 and  2), and had negative NAAT (nasal swab) at any unscheduled visit 
prior to 7  days after Dose 2 were included in the analysis.  
† Severe illness from COVID -19 is defined in the protocol as confirmed COVID -19 and presence of at least 1 of the following:  
• Clinical signs at rest indicative of severe systemic illness (respiratory rate ≥30 breaths per minute, heart rate ≥125 beats per 
minute, saturation of oxygen ≤93% on room air at sea level, or ratio of arteri al oxygen partial pressure to fractional inspired 
oxygen <300 mm Hg);  
• Respiratory failure [defined as needing high -flow oxygen, noninvasive ventilation, mechanical ventilation or extracorporeal 
membrane oxygenation (ECMO)];   
• Evidence of shock (systolic blood pressure <90 mm Hg, diastolic blood pressure <60 mm Hg, or requiring vasopressors);  
• Significant acute renal, hepatic, or neurologic dysfunction;   
• Admission to an Intensive Care Unit;   
• Death.   
FDA-CBER-2021-5683-0651688
 
20 ‡ Severe illness from COVID -19 as defined by CDC  is confirmed COVID -19 and presence of at least 1 of the following:  
• Hospitalization;  
• Admission to the Intensive Care Unit;  
• Intubation or mechanical ventilation;  
• Death.  
a. n1 = Number of participants  meeting the endpoint definition.  
b. Total surveillance time in 1000 person -years for the given endpoint across all p articipants  within each group at risk for the endpoint. 
Time period for COVID -19 case accrual is from 7 days after Dose 2 to the end of the surveillance period.  
c. n2 = Number of participants  at risk for the endpoint.  
d. Two-side c onfidence interval (CI) for vaccine efficacy is derived based on the Clopper and Pearson method adjusted to the 
surveillance time.  
 
16 HOW SUPPLIED/STORAGE AND HANDLING  
 
COMIRNATY Suspension for Intramuscular Injection, Multiple Dose Vials are supplied in a carton containing 
25 multiple dose vials (NDC 0069-1000-03) or 195 multiple dose vials (NDC 0069-1000-02). A 0.9% Sodium Chloride Injection, USP diluent is provided but shipped separately , and should be stored at controlled room 
temperature 20 °C to 25°C (68°F to 77°F) [see USP Controlled Room Temperature]. The provided 0.9% Sodium 
Chloride Injection, USP diluent will be  supplied either as a  10 mL single-use vial manufactured by Hospira, Inc 
(NDC  0409-4888-10), or a 2 mL single-use vial manufactured by Fresenius Kabi USA, LLC 
(NDC  63323-186-02). 
 After dilution, 1 vial contains 6 doses of 0.3 mL.  
 During storage, minimize exposure to room light, and avoid exposure to direct sunlight and ultraviolet light.  Do not refreeze thawed vials.  
 
Frozen Vials Prior to Use  
 Cartons of COMIRNATY Multiple Dose Vials arrive in thermal containers with dry ice. Once received, remove the vial cartons immediately from the thermal container and preferably store in an ultra- low temperature freezer 
between -80ºC to -60ºC (-112ºF to -76ºF) until the expiry date printed on the label. Alternatively, vials may be stored at -25°C to - 15°C ( -13°F to 5°F) for up to 2 weeks . Vials must be kept frozen and protected from light, in 
the original cartons, until ready to use. Vials stored at -25°C to -15 °C (-13°F to 5°F) for up to 2 weeks may be 
returned 1 time to  the recommended storage condition of -80ºC to -60ºC (-112ºF to -76ºF). Total cumulative 
time the vials are stored at -25°C to - 15°C ( -13°F to 5°F) should be tracked and should not exceed 2 weeks . 
 
If an ultra -low temperature freezer is not available, the thermal container in which COMIRNATY arrives may 
be used as temporary  storage when consistently re-filled to the top of the container with dry ice. Refer to the 
re-icing guidelines packed in the original thermal container for instructions regarding the use of the thermal 
container for temporary storage. The thermal container maintains a temperature range of -90ºC to -60ºC (-130ºF 
to -76ºF). Storage of the vials between -96°C to - 60°C ( -141°F to -76°F) is not considered an excursion from 
the recommended storage condition.  
 
Transportation of Frozen Vials  
 If local redistribution is needed and full cartons containing vials cannot be transported at -90°C to -60°C (-130°F to -76°F), vials may be transported at -25°C to - 15°C ( -13°F to 5°F). Any hours used for transport 
at -25°C to - 15°C ( -13°F to 5°F) count against the 2- week limit for storage at -25°C to - 15°C ( -13°F to 5°F). 
FDA-CBER-2021-5683-0651689
 
21 Frozen vials transported at -25°C to - 15°C ( -13°F to 5°F) may be returned 1 time to  the recommended storage 
condition of -80ºC to -60ºC (-112ºF to -76ºF). 
 
Thawed Vials Before Dilution  
 Thawed Under Refrigeration  
 Thaw and then store undiluted vials in the refrigerator [2ºC to 8ºC (35ºF to 46ºF)] for up to 1 month. A carton of 25 vials or 195 vials may take up to 2 or 3 hours , respectively,  to thaw in the refrigerator, whereas a fewer 
number of vials will thaw in less time.   Thawed at Room Temperature  For immediate use, thaw  undiluted vials at room temperature [up to 25ºC (77ºF)] for 30 minutes.  Thawed vials 
can be handled in room light conditions.   Vials must reach room temperature before dilution.  
 Undiluted vials may be stored at room temperature for no more than 2 hours.  
Transportation of Thawed  Vials  
 Available data support transportation of 1 or more thawed vials at 2°C to 8°C (35°F to 46°F) for up to 12 hours.   
Vials After Dilution  
 After dilution, store  vials between 2°C  to 25°C (35°F to 77°F) and use within 6 hours from the time of dilution. 
During storage, minimize exposure to room light, and avoid exposure to direct sunlight and ultraviolet light. Any vaccine remaining in vials must be discarded after 6  hours. Do not refreeze. 
 
17 PATIENT  COUNSELING INFORMATION  
 
Inform vaccine recipient of the potential benefits and risks of vaccination with COMIRNATY.  Inform vaccine recipient of the importance of completing the two dose vaccination series.  Advise vaccine recipient to report any adverse events to their healthcare provider or to the Vaccine Adverse Event Reporting System at 1-800-822-7967 and www.vaers.hhs.gov
. 
 
FDA-CBER-2021-5683-0651690
 
22 This product’s labeling may have been updated. For the most recent  prescribing information, please visit 
www.comi rnatyglobal.com . 
 
 
Manufactured for 
BioNTech Manufacturing GmbH  An der Goldgrube 12 55131 Mainz, Germany  
 
Manufactured by Pfizer Inc., New York, NY 10017  
  LAB -1448-0.3 
 US Govt. License No. x  CPT Code x 
FDA-CBER-2021-5683-0651691