MP Kim Leadbeater, who is behind the legislation, said the bill that legalizes the aid to rescue people will strengthen terminally ill people in England and Wales and pass the proposed changes more feasible.

As the House of Commons prepares to debate the amendment, Leadbeater said new protections have been introduced to allow further examination of auxiliary dying applications and to ensure that doctors and others have the option not to participate in the process.

The fact that more than 100 campaigners on both sides of the auxiliary dying argument gathered outside the parliament shows how they feel about the issue.

The bill passed the second reading with 55 votes, which will face another vote or no vote on Friday (committee stage). But the House of Commons Speaker Lindsay Hoyle provided more time for the debate, which means that the only vote will be conducted by a specific amendment.

Despite the lack of a full vote, the debate will be subject to any signs of mood change among members of Congress. Opponents of the bill have spoken about the idea that many supporters have changed their minds since then, but only a few members of Congress have said the sentence publicly.

Conservative MP George Freeman supported the second reading in November and has since said he would vote and there are a few others who are understood to be changing their minds.

TV host and campaigner Esther Rantzen urged all MPs to support Kim Leadbeater's "strong, safe, well-thought bill" to legalize assisted deaths in England and Wales.

In a passionate letter, the broadcaster with Stage 4 lung cancer said she and adults with other diseases asked members of Congress to allow “good, painless deaths for ourselves and those we love and care about.”

During Friday's debate, Labour MP Jess Asato stepped in to ask if Leadbeater would be as she said it was Esther Rantzen's "offensive and disrespectful" comments to opponents were inspired by unclaimed religious beliefs. Leadbeater said she hadn't seen these remarks.

During the debate, some MPs raised concerns that the bill could allow applicants to “shop for doctors” to agree to approve their request for assisting dying.

"I refuse to advocate that patients will be roaming around, remember that we are talking about dying people: they can't start shopping for services," Leadbeater said.

Othes, including Conservative MP Rebecca Paul, objected to the idea that in some cases, people with anorexia, mental health problems or learning difficulties could assist in death in a loophole in the bill and urged further safeguards.

A group of MPs from medical backgrounds also pleaded with colleagues to support the bill, saying most healthcare professionals “understand that the existing laws do not work.”

The letter from the MP was signed by three former doctors - Neil Shastri-Hurst (conservative), Simon Opher and Peter Prinsley (both Labor) and a former nurse Kevin McKenna (Labor).

They criticized what they called “misleading” notions that medical professionals tend to oppose assisted dying and said investigations showed the worst emotions.

They wrote: “In our experience, most healthcare professionals know that the current law does not work. It will be compassionate and force people to dying situations to commit crimes, and there is no civilized healthcare system to accept: unbearable pain, unrestricted pain or traumatic decisions to terminate life overseas.

"As doctors and clinicians, we will not tolerate such a system in any other field of care. As councillors, we cannot defend it now."

According to a timetable proposed by Hoyle, the two sets of amendments agreed on on June 13 will be voted on Friday.

Leadbeater insisted on Thursday that there was no large amount of support. "There may be some movement in both directions, but there are certainly no large amounts of movement," she told LBC Radio.