What really happens inside a clinical trial?

A conversation with Dr Stephanie Frade, exercise physiologist, researcher, and someone who knows what it is like to live with autoimmune disease.

Clinical trials are how we discover what works in medicine. But for most people, what actually happens inside one is a mystery. In a recent Scleroderma @ ResearchFriends webinar, Dr Stephanie Frade pulled back the curtain, and what she shared might change how you think about research.

So, what is a clinical trial?

 

A clinical trial is a structured way of testing whether a particular treatment is safe and effective. It involves recruiting a group of people, giving them a treatment, and comparing their outcomes with people who continue to receive their usual care. The goal is to show whether the treatment itself caused the difference, rather than chance or expectation.

Drug trials are one of the most common ways new treatments reach patients, and scleroderma research is no exception. Researchers and pharmaceutical companies are studying new treatment approaches for scleroderma that generally target one of a few areas: reducing fibrosis, the scarring and thickening of skin and organs; calming an overactive immune response; or improving blood vessel health. You can find current scleroderma drug trials happening in Australia through Scleroderma Australia’s TrialFinder. As Stephanie explained, trials can test many different kinds of treatments, including exercise, and they all follow the same core principles.

Why some people choose a pharmaceutical trial

  • Access to investigational treatments not yet available outside a trial
  • Close monitoring from a dedicated research team throughout
  • Contributing to research that could help develop treatments for the

     wider community

What does randomised mean?

Randomisation means the decision about who receives which treatment is made completely at random. Researchers use random generators so that neither they nor the participant can influence the assignment. This matters because it removes bias. If researchers put the people most likely to do well in the treatment group, the results would not tell us anything useful.

What does blinded mean?

Stephanie says “People ask me, did I get randomised into this group because of my test results? And I say: no. It is completely random. Like rolling a dice.” 

In a blinded trial, participants do not know which group they have been assigned to. In a drug trial, someone might receive a placebo that looks identical to the real treatment. In an exercise trial, blinding participants is impossible, because you know whether you are exercising. So researchers blind the assessors instead: the person measuring outcomes does not know which group each participant is in.

Stephanie described how this works in her own research. She spends up to three hours with a participant running ‘exercise’ tests and body composition scans, then has to say goodbye and “step away” for three months, with no contact and no knowledge of which group they were assigned to. Stephanie says “It is a little bit of an interesting scenario where I get to test people and spend these three hours with them, and then I have to say goodbye and not hear from them for three months.” 

Designing trials for real life

 

One of the things that stood out most in Stephanie’s conversation was how deeply she thinks about what it is actually like to be a participant. Scleroderma brings its own challenges to exercise: fatigue, skin tightening, hand ulcers, shortness of breath, sensitivity to cold. These are not edge cases to work around. They are the reality of the people the research is designed to help.

Early in designing one of her trials, Stephanie proposed three supervised gym sessions per week. The response from the community was immediate and honest: that is going to be really hard for us. She listened, and redesigned the protocol to be flexible, offering participants the choice to attend in person or exercise via telehealth from home, “up to three days per week”. “Having that flexibility makes it so much easier to adhere to exercise. Knowing that you can choose to do it at home via telehealth just takes away that pressure.” say Stephanie.

This is what it looks like when lived experience shapes research design. Not making exceptions. Making better science.

What people with scleroderma told her about exercise

A significant part of Stephanie’s research has been qualitative: sitting with groups of six to eight people who have scleroderma and asking them directly about their experience of exercise. What she heard was nuanced, honest, and important. And, like all of her research, even this type of qualitative study goes through thorough ethical review.

Benefits people described

  • Improved mobility and ability to do more in everyday life
  • Better circulation and feeling warmer after moving
  • Less stiffness and reduced pain
  • Better mood and a general sense of wellbeing
  • Improved energy and better sleep
  • The social connection of exercising alongside others, especially those with similar experiences

 

Barriers people described

  • Fatigue — one of the most common and significant challenges
  • Skin tightening, hand ulcers, difficulty gripping equipment
  • Shortness of breath from lung involvement
  • Sensitivity to cold — gyms, outdoor environments
  • Cost of supervised exercise
  • Reduced motivation during flares or difficult periods
  • During COVID: fear of infection in shared gym environments

 

What people said they preferred

People were clear about what would actually help them exercise. They preferred supervised, guided exercise over doing it alone. They described using modified equipment, like weighted straps instead of dumbbells, exercising seated rather than on the floor, and asking trainers to warm the room before they arrived.

Stephanie is working toward a longer-term goal: a free, publicly accessible supervised exercise program delivered through hospital settings, so that people with scleroderma can access expert-guided exercise without the financial barrier. Research, she noted, is how you make that kind of change happen: evidence is hard to ignore when it is written down and communicated to policy makers.

Questions from the community

 

We are all so different. How can research measure outcomes across a group of people with scleroderma?

This was one of the best questions of the session, and it is also a great reason to understand why randomised controlled trials are considered the gold standard of research. The honest answer is that no trial can perfectly account for how differently scleroderma shows up in each person. What researchers can do is try to balance that out. When you randomise people into groups, you statistically improve the chances of an even spread across the group: different sexes, different manifestations of scleroderma, those who already exercise and those who do not. Researchers also work with statisticians to actively build in that balance through a process called stratification, where factors like lung involvement or how long someone has had the condition are distributed as evenly as possible across groups. The larger the study, the better this works, because more people means a better overall picture. Research will not always give a one-size-fits-all answer, but a rigorous methodology gets us as close to a fair result as possible.

Is it safe? What if the treatment makes my condition worse?

Before you consent to participate in any trial, there will be detailed conversations about what is involved, including the risks and the benefits. You have the opportunity to ask questions, talk it through with family, and speak to your doctor. Nothing is included in a trial without going through the ethics committee, which scrutinises every detail of what participants will be asked to do. Researchers have protocols in place for everything: emergency contacts, first aid, equipment on site. And for telehealth exercise sessions, Stephanie collects every participant’s address so that if something happens on screen, she can direct help to them immediately. Stephanie says “Things would not be included in a trial if they were not safe. I can assure you that there are safety procedures in place. But I also want to be honest: there are risks with anything, and we do have procedures in place to mitigate them.”

I want to join, but every day is different. Can I say no partway through?

Yes. You can withdraw from a trial at any time, without judgement, and without it affecting your relationship with the research team or your regular care. Researchers factor dropouts into their planning from the beginning. As Stephanie put it: people often tell her they do not want to disappoint her, and she always says the same thing: please, that is absolutely not the case.

And if you do not want to withdraw but need some flexibility, that is built in too. In Stephanie’s trials, participants can miss sessions, switch between in-person and telehealth, or change days when they need to. That is not a compromise. It is research designed for real life. Stephanie says “I design these trials flexible for that reason, because I know how every day can be different.” 

One thing she wants researchers to understand

We closed by asking Stephanie what she wishes researchers understood more about people living with autoimmune disease. Her answer was simple and important. “Every day is different. Having that flexibility in how exercise is delivered, being able to change appointments, just having that fluidity, that is my advice. Permission to show up where you are at.”

She also encouraged people with scleroderma to learn as much as they can about their own condition, to advocate for themselves, and to share that knowledge with the health professionals they work with. Some of the most meaningful moments in her career have been hearing that a physiotherapist or exercise professional went home and researched scleroderma after a conversation with one of their patients.

The community teaches the researchers too. That is how it should work.