Doctors discovered that DeltaRex-G was aggressively attacking Will’s cancer cells, but the boy’s body couldn’t handle it, and the emergency room was locked.

Just hours after receiving his third dose of DeltaRex-G, 15-year-old Will Roberts’ condition took a terrifying turn.

What started as a severe headache quickly escalated. Bright lights became unbearable. Heavy sweating followed.

Then came the nosebleed that wouldn’t stop. Within minutes, Will’s heart rate became dangerously unstable, and he began losing consciousness.

The medical team rushed into action, surrounding the brave boy who has already lost one leg to bone cancer. But everything changed the moment the head nurse examined the fresh blood sample.

Her face went pale.

For several long seconds, no one spoke. The entire emergency room fell into a heavy, fearful silence.

Then the doctor shouted:

“Lock down the room immediately!”

Doors were sealed. No one in. No one out. The atmosphere became tense and suffocating as every doctor and nurse focused solely on Will’s weakening breathing.

According to sources close to the family, doctors believe the DeltaRex-G is working aggressively — attacking and destroying cancer cells at a rapid rate never seen before in Will’s case.

But his young body is struggling severely with the intensity of the reaction.

This is the double-edged sword of a powerful experimental treatment: the very thing that might save him is also pushing him to the brink.

Brittney and Jason Roberts, who have been by their son’s side through every painful step of this journey, are once again facing the unimaginable.

Just days ago they were celebrating small signs of hope. Now they’re back in crisis mode, watching their son fight for stability in a locked-down emergency room.

Will has shown incredible courage throughout his battle — from enduring jet lag and sleepless nights, to napping at a Dodgers game despite exhaustion. But this latest reaction has everyone holding their breath.

The big question on everyone’s mind right now:

Is this dangerous reaction a sign that DeltaRex-G is finally working at full power… or is Will’s body paying too heavy a price?

Prayers are pouring in from around the world for this brave 15-year-old warrior. The Roberts family continues to walk this incredibly difficult road with faith, love, and unbreakable strength.

Will, keep fighting little brother. We’re all standing with you.