Saudi Press

Saudi Arabia and the world
Thursday, Dec 04, 2025

Moderna’s COVID-19 vaccine human safety trial results

Moderna’s COVID-19 vaccine human safety trial results

The Massachusetts biotech on Monday described the immune-system responses to the vaccine from this first, small study that was primarily focused on safety. The results don't yet show whether the vaccine would prevent people from being infected with the novel coronavirus.
Moderna, the Massachusetts biotechnology company behind a leading effort to create a coronavirus vaccine, announced promising early results from its first human safety tests Monday. The company plans to launch a large clinical trial in July aimed at showing whether the vaccine works.

Moderna has worked closely with the NIH since early January on its coronavirus vaccine, dubbed mRNA-1273. The biotech uses a technology platform called messenger RNA to create vaccine candidates using solely the genetic code of the virus. Traditional vaccines typically require live samples of the virus.

The company reported that in eight patients who had been followed for a month and a half, the vaccine at low and medium doses triggered blood levels of virus-fighting antibodies that were similar or greater than those found in patients who recovered. That would suggest, but doesn’t prove, that it triggers some level of immunity. The antibody-rich blood plasma donated by patients who have recovered is separately being tested to determine whether it is an effective therapy or preventive measure for covid-19.

Moderna’s announcement comes days after one of its directors, Moncef Slaoui, stepped down from the board to become chief scientist for Operation Warp Speed, a White House initiative to speed up vaccine development. Watchdogs called out Slaoui’s apparent conflict of interest. Filings with the Securities and Exchange Commission show Slaoui’s stock options in Moderna are worth more than $10 million with the company’s share price at $66.69. In pre-market trading Monday, Moderna’s stock soared as high as 30 percent to nearly $87.
Newsletter

Related Articles

Saudi Press
0:00
0:00
Close
As Trump Deepens Ties with Saudi Arabia, Push for Israel Normalization Takes a Back Seat
Thai Food Village Debuts at Saudi Feast Food Festival 2025 Under Thai Commerce Minister Suphajee’s Lead
Saudi Arabia Sharpens Its Strategic Vision as Economic Transformation Enters New Phase
Saudi Arabia Projects $44 Billion Budget Shortfall in 2026 as Economy Rebalances
OPEC+ Unveils New Capacity-Based System to Anchor Future Oil Output Levels
Will Saudi Arabia End Up Bankrolling Israel’s Post-Ceasefire Order in Lebanon?
Saudi Arabia’s SAMAI Initiative Surpasses One-Million-Citizen Milestone in National AI Upskilling Drive
Saudi Arabia’s Specialty Coffee Market Set to Surge as Demand Soars and New Exhibition Drops in December
Saudi Arabia Moves to Open Two New Alcohol Stores for Foreigners Under Vision 2030 Reform
Saudi Arabia’s AI Ambitions Gain Momentum — but Water, Talent and Infrastructure Pose Major Hurdles
Tensions Surface in Trump-MBS Talks as Saudi Pushes Back on Israel Normalisation
Saudi Arabia Signals Major Maritime Crack-Down on Houthi Routes in Red Sea
Italy and Saudi Arabia Seal Over 20 Strategic Deals at Business Forum in Riyadh
COP30 Ends Without Fossil Fuel Phase-Out as US, Saudi Arabia and Russia Align in Obstruction Role
Saudi-Portuguese Economic Horizons Expand Through Strategic Business Council
DHL Commits $150 Million for Landmark Logistics Hub in Saudi Arabia
Saudi Aramco Weighs Disposals Amid $10 Billion-Plus Asset Sales Discussion
Trump Hosts Saudi Crown Prince for Major Defence and Investment Agreements
Families Accuse OpenAI of Enabling ‘AI-Driven Delusions’ After Multiple Suicides
Riyadh Metro Records Over One Hundred Million Journeys as Saudi Capital Accelerates Transit Era
Trump’s Grand Saudi Welcome Highlights U.S.–Riyadh Pivot as Israel Watches Warily
U.S. Set to Sell F-35 Jets to Saudi Arabia in Major Strategic Shift
Saudi Arabia Doubles Down on U.S. Partnership in Strategic Move
Saudi Arabia Charts Tech and Nuclear Leap Under Crown Prince’s U.S. Visit
Trump Elevates Saudi Arabia to Major Non-NATO Ally Amid Defense Deal
Trump Elevates Saudi Arabia to Major Non-NATO Ally as MBS Visit Yields Deepened Ties
Iran Appeals to Saudi Arabia to Mediate Restart of U.S. Nuclear Talks
Musk, Barra and Ford Join Trump in Lavish White House Dinner for Saudi Crown Prince
Lawmaker Seeks Declassification of ‘Shocking’ 2019 Call Between Trump and Saudi Crown Prince
US and Saudi Arabia Forge Strategic Defence Pact Featuring F-35 Sale and $1 Trillion Investment Pledge
Saudi Sovereign Wealth Fund Emerges as Key Contender in Warner Bros. Discovery Sale
Trump Secures Sweeping U.S.–Saudi Agreements on Jets, Technology and Massive Investment
Detroit CEOs Join White House Dinner as U.S.–Saudi Auto Deal Accelerates
Netanyahu Secures U.S. Assurance That Israel’s Qualitative Military Edge Will Remain Despite Saudi F-35 Deal
Ronaldo Joins Trump and Saudi Crown Prince’s Gala Amid U.S.–Gulf Tech and Investment Surge
U.S.–Saudi Investment Forum Sees U.S. Corporate Titans and Saudi Royalty Forge Billion-Dollar Ties
Elon Musk’s xAI to Deploy 500-Megawatt Saudi Data Centre with State-backed Partner HUMAIN
U.S. Clears Export of Advanced AI Chips to Saudi Arabia and UAE Amid Strategic Tech Partnership
xAI Selects Saudi Data-Centre as First Customer of Nvidia-Backed Humain Project
A Decade of Innovation Stagnation at Apple: The Cook Era Critique
President Trump Hosts Saudi Crown Prince Mohammed bin Salman in Washington Amid Strategic Deal Talks
Saudi Crown Prince to Press Trump for Direct U.S. Role in Ending Sudan War
Trump Hosts Saudi Crown Prince: Five Key Takeaways from the White House Meeting
Trump Firmly Defends Saudi Crown Prince Over Khashoggi Murder Amid Washington Visit
Trump Backs Saudi Crown Prince Over Khashoggi Killing Amid White House Visit
Trump Publicly Defends Saudi Crown Prince Over Khashoggi Killing During Washington Visit
President Donald Trump Hosts Saudi Crown Prince Mohammed bin Salman at White House to Seal Major Defence and Investment Deals
Saudi Arabia’s Solar Surge Signals Unlikely Shift in Global Oil Powerhouse
Saudi Crown Prince Receives Letter from Iranian President Ahead of U.S. Visit
Saudi Arabia’s Crown Prince Begins Washington Visit to Cement Long-Term U.S. Alliance
×