In June, two-year-old Harvey Telford visited a specialist clinic near Dusseldorf for stem cell treatment.
And now his parents Jaimelee, 24, and Jimmy, 27, of St Stephen's Road, North End, Portsmouth, want to raise the money so they can return to the clinic for more treatment after noticing improvements in their little boy.
Cerebral palsy causes physical disability and involves the cerebrum in the brain, causing movement difficulties.
Jamielee said: 'He is now standing up on his own using a walking frame, the treatment has been great for him.
'He really enjoyed Christmas and now we want to be able to send him back to Germany.'
The family are planning a fundraising evening at Enska martial arts centre in Kingston Road, Buckland, in February or March to try and raise some money towards the treatment in Germany.
Speaking about the impact the first round of treatment had on her son's life, Jamielee said: 'We're still seeing improvements in him now.
'It's little things like picking up stuff, which he couldn't do before and his sitting and standing positions have improved loads.
'His speech is still improving as he is able to move his tongue more.'
Earlier this year their family managed to raise £9,000 for the original treatment.
A big chunk of that money came from a similar event at Enska.
Jamielee said: 'We have had such great support before from people and we hope we will again this time.
'We just want to give Harvey the best possible chance in life and want to push him as far as possible.'
Harvey's treatment sees his cells taken out of his body before they are re-injected.
The re-injected cells have the potential to then regenerate damaged tissue in his body.
The family would like to hear from anybody who would be interested in donating to a prize auction on the night.
To get in touch with the family call 07588 669724 or write to them via email at
jleejimmy@yahoo.co.uk