India, Jan. 13 -- Several biotechnology and pharmaceutical names posted notable gains in Tuesday's after-hours trading session, driven by corporate updates and investor enthusiasm around clinical and financial milestones.

China SXT Pharmaceuticals, Inc. (SXTC) surged 17.40% to $0.12 after announcing the closing of a registered direct offering valued at about $10 million. Under the terms of the agreement, the company will sell 66,666,666 Class A ordinary shares, or pre-funded warrants in lieu thereof, at $0.15 per share to a single investor. The transaction provides gross proceeds of about $10 million, strengthening the company's balance sheet and fueling investor optimism.

Rapid Micro Biosystems, Inc. (RPID) advanced 8.55% to $3.30 follow...