A US panel will meet again next week to discuss whether the pause on the use of Johnson & Johnson's COVID-19 vaccine's should continue, after delaying a vote on the matter earlier this week.

The US Centers for Disease Control and Prevention (CDC) advisory panel will meet on April 23, according to a notice posted on the regulator's website.

US health regulators recommended earlier this week that use of the J&J vaccine be paused after reports of six cases of rare brain blood clots in women.

The advisory panel on Wednesday called for more data before making a decision on how and whether to resume use of the one-dose shot.