Prilenia shares HD trial data with CHDI to help future research

One of the biggest challenges in clinical research is making the most of the information that trials generate. A solution to this is to share data between stakeholders so that everyone can learn from these datasets, derived from the selfless participants of clinical trials. Recently, the Huntington’s disease-focused pharmaceutical company Prilenia announced that it has donated data from the placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. arms of two of its Huntington’s Disease (HD) clinical trials to CHDI Foundation, allowing researchers to learn from hundreds of participants whose contributions might otherwise remain largely untapped.

The agreement isn’t about testing a new drug or announcing new trial results. Instead, it’s about something that could quietly improve HD research for years to come: sharing high-quality clinical data so that scientists can ask new questions long after a trial has ended.

Why does sharing clinical trialclinical trial Very carefully planned experiments designed to answer specific questions about how a drug affects human beings data matter?

Clinical trials collect an enormous amount of information. Beyond contributing to our understanding of whether a treatment works, participants undergo regular clinical assessments, safety monitoring and many other measurements over months or even years.

Typically, researchers analyse these data to answer the specific questions the trial was designed to address – namely, whether the drug is safe and whether it offers benefit. But the same datasets often have the potential to answer many additional questions that were never part of the original study.

Making these data available to other researchers allows them to be reused in new ways, helping maximise the scientific value of every person’s participation. For example, trial data could be used to define the most informative ways to measure success or estimate how quickly participants change over time.

This is particularly important in HD, where every clinical trialclinical trial Very carefully planned experiments designed to answer specific questions about how a drug affects human beings represents a tremendous commitment from participants, families, clinicians and researchers.

Which data are being shared by Prilenia?

The agreement covers the placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. arms of Prilenia’s PRIDE and PROOF-HD clinical trials which tested a drug called pridopidine. Together, these include data from 331 participants!! This comprises 82 people from the 52-week PRIDE study and 249 people from the 78-week PROOF-HD study. The datasets include clinical assessments and safety information collected from participants who received placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. rather than the experimental drug. 

Importantly, CHDI clarified to HDBuzz that it is only receiving placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. participant data, not data from people who received pridopidine. A big scientific interest in the field is understanding placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. responses in HD clinical trials (changes that can occur even in the absence of a drug) and how these might influence trial outcomes. These data will be very useful in addressing that question. 

Why study the placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. group?

At first glance, placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. data might not sound particularly exciting. But these datasets can be incredibly valuable. People receiving placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. still attend clinic visits, complete motor and cognitive assessments, undergo safety monitoring and contribute detailed information about how HD changes over time. This allows researchers to better understand the natural variability of the disease and how participants might change simply through being involved in a clinical trialclinical trial Very carefully planned experiments designed to answer specific questions about how a drug affects human beings.

Making these data available to other researchers allows them to be reused in new ways, helping maximise the scientific value of every person’s participation.

It is hoped that a better understanding of placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work.-related effects could improve how future HD trials are designed and interpreted. It may also help researchers figure out when data from observationalobservational A study in which measurements are made in human volunteers but no experimental drug or treatment is given studies can be used as a comparison against participants receiving an experimental treatment. For example, data from Enroll-HD were used as an external comparison group in the uniQure trial. 

Better models of disease progression and placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. effects could ultimately make future trials more efficient and improve researchers’ ability to detect whether an experimental treatment is genuinely providing benefit.

Will other researchers be able to use the data?

Yes, but not immediately. The data will be shared through the same mechanisms CHDI already uses for other HD datasets, such as PREDICT-HD, TRACK-HD and TrackOn HD. Qualified researchers from recognised research institutions will be able to apply for access through the existing Enroll-HD data access process. 

The agreement also allows researchers to combine these data with other HD datasets if appropriate, opening the door to larger analyses that would not be possible using individual studies alone. 

As with other shared clinical datasets, participant identities remain protected through secure coding and anonymisation. Prilenia retains ownership of the original data, while CHDI receives rights to use the information for research and to enable access by qualified third-party researchers. 

A growing culture of openness

Although data sharing has become increasingly common across biomedical research, it has not always been routine, so this is an important step forward for the field. 

The HD community has increasingly embraced collaborative resources such as Enroll-HD, where data sharing has accelerated research related to disease progression, biomarkers and trial design. This latest agreement continues that trend by ensuring that information generated during expensive and time-consuming clinical trials can power HD research long after the original studies have finished.

Prilenia has also indicated that placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work.-arm data from its ongoing Phase 3 PRECISE-HD study may eventually be shared in a similar way, further expanding the resources available to the research community. 

Looking beyond individual trials

Negative or inconclusive clinical trials can sometimes feel like the end of the story for a potential treatment. But the data collected during those studies often remain enormously valuable. Every participant contributes information that helps researchers better understand HD, even when an experimental drug doesn’t ultimately become a treatment.

By making these placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. datasets available to the wider research community, Prilenia and CHDI are helping ensure that the contributions of hundreds of trial participants continue to advance HD research. The immediate goal is to better understand placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. effects, but the longer-term impact may extend much further, informing smarter clinical trialclinical trial Very carefully planned experiments designed to answer specific questions about how a drug affects human beings design, improving statistical analyses and helping future studies ask better questions.

In a disease where every participant and every dataset is precious, that represents an important investment in the future of HD research.

Summary: 

• Prilenia has donated placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work.-arm data from its PRIDE and PROOF-HD HD clinical trials to CHDI Foundation.
• The dataset includes information from 331 participants, providing a valuable resource for future HD research.
• Researchers will use the data to better understand placeboplacebo A placebo is a dummy medicine containing no active ingredients. The placebo effect is a psychological effect that causes people to feel better even if they’re taking a pill that doesn’t work. effects, disease progression and how to improve the design and interpretation of future clinical trials.
• Qualified researchers will be able to apply for access through CHDI’s established data-sharing process, allowing the data to be combined with other HD datasets where appropriate.
• Sharing clinical trialclinical trial Very carefully planned experiments designed to answer specific questions about how a drug affects human beings data maximises the impact of every participant’s contribution, ensuring valuable information continues to benefit the HD community long after individual trials have finished.