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Safety and efficacy of intramuscular vaccination without aspiration before injection: a randomized clinical trial

Safety and immunogenicity in intramuscular injection of vaccine without aspiration prior to injection: a randomized clinical trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-8nkhhk
Enrollment
Unknown
Registered
2019-09-03
Start date
2019-09-23
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Drug-Related Side Effects and Adverse Reactions. Signals e Symptons.

Interventions

Experimental group: 71 subjects (men or women) will receive one dose of Hepatitis A vaccine (adult) at 1 mL intramuscularly in the ventrogluteal region, without aspiration (syringe plunger retraction)
Procedure/surgery

Sponsors

Universidade Federal de Alagoas - UFAL
Lead Sponsor
Hospital Universitário Professor Alberto Antunes - HUPAA
Collaborator

Eligibility

Age
18 Years to 59 Years

Inclusion criteria

Inclusion criteria: Healthy volunteers; both genders; age between 18 and 59 years.

Exclusion criteria

Exclusion criteria: Individuals with immunosuppressive disease or treatment; acute febrile illness; made use anti-inflammatory drug, analgesic or antipyretic 24 hours before vaccination; history of allergic reaction to any of the components of the Hepatitis A vaccine; pregnant women; history of hepatitis A disease; history of vaccination against Hepatitis A; previous titration of antibodies against the Hepatitis A virus (anti-HAV IgG); persons undergoing blood transfusion or use of blood products in the last 28 days; persons who are unable to respond on their own.

Design outcomes

Primary

MeasureTime frame
Expected outcome 1: occurrence of equal or lesser incidence of post-vaccination adverse events, evaluated through inspection, palpation of the injection site, temperature measurement by means of an infrared sensor thermometer and verbal report of symptoms by the participant, daily, for three consecutive days and on the thirtieth day after vaccination.;Expected outcome 2: seroconversion of antibodies against Hepatitis A virus, evaluated by venous blood collection, chemiluminescent laboratory testing, and anti-HAV (anti-hepatitis A virus) immunoglobulin (IgG) serum levels equal to or greater than 10 mlU / mL, analysis performed before the intervention and thirty days after.

Secondary

MeasureTime frame
Secondary outcome 1: decreased pain during vaccination, assessed by the numerical scale of pain intensity (NDT), which assigns points from 0 to 10 to the pain, with 0 being no pain and 10 being the worst possible pain.;Secondary outcome 2: Heartbeat within the normal range (60 to 100 beats per minute - ppm), assessed by a digital pulse oximeter device placed on the participant, recorded one minute before, immediately after administration of the vaccine and five minutes later .;Secondary outcome 3: peripheral oxygen saturation greater than or equal to 95%, assessed by digital pulse oximeter device placed on the participant and recorded one minute before, immediately after administration of the vaccine and five minutes later.

Countries

Brazil

Contacts

Public ContactAlanna Silva

Universidade Federal de Alagoas - UFAL

alanna-michella@hotmail.com+55(82)32141171

Outcome results

None listed

Source: REBEC (via WHO ICTRP)