Overcoming activation and enrollment delays

Case study

In global multiple sclerosis trials through partnership and collaboration.

ICON partnered with a drug development sponsor to conduct a global programme for Multiple sclerosis (MS) studies in over 2,200 patients. The studies faced many regulatory and patient recruitment challenges which presented a risk of activation and enrollment delays. ICON’s prompt evaluation and proactive solutions, in conjunction with the strong, collaborative partnership with the sponsor helped mitigate delays and reinforce the client’s reputation in the MS research field.

Study description

Study 1:

A randomised, multicenter, double-blind, placebo-controlled, dose-comparison study to determine the efficacy and safety of study drug in subjects with relapsing- remitting multiple sclerosis

Study 2:

A randomised, multicenter, placebo-controlled and active reference comparison study to evaluate the efficacy and safety of study drug in subjects with relapsing- remitting multiple sclerosis


ICON Services:
Full service

Study phase:
Phase 3

Drug class:
Small molecule

Study duration:
72 months

No. of subjects:
2,271 adults with relapsing-remitting MS

No. of clinical sites:
375

Regions:
Asia-Pacific (including India)
Central and Eastern Europe
Latin America
MENA
North America
South Africa
Western Europe

Challenge

The two main studies required the regulatory approval of 30+ countries as well as the ethics approvals for 375+ sites. During the regulatory approval process, the Ministry of Health and Clinical Events Committees had many questions about the initial submissions, resulting in multiple protocol amendments, changes in the client strategy, and significant delays in site activations. When some countries disagreed with the study design, submissions had to be withdrawn. In addition to regulatory delays, the competitive landscape in Europe and the United States worsened and recruitment rates dropped. Most of the high-performing sites were involved in at least three other competing studies. These challenges combined with inherent hurdles in negotiating contracts across multiple sites in multiple regions all threatened to affect enrollment timelines.

Solution

Since delays in activation threatened overall enrollment timelines, ICON and the client initiated a series of regional meetings to foster the public’s enthusiasm and to reinforce the drug’s importance, hoping to increase recruitment rates. ICON and the client held a recruitment strategy meeting for the team when the project was still under 50% of its goal of recruiting 1,100 patients.

ICON’s global Regulatory Affairs group oversaw the entire regulatory submission process to ensure consistency and coordination in filings across all countries. To manage the regulatory agencies’ numerous questions and to ensure we provided consistent answers, ICON and the client developed a database of questions and responses. Once the agencies accepted the responses, the team began submitting them with initial submissions to prevent further delays. For each country, ICON also developed a comprehensive risk management plan that featured clear mitigation and contingency plans by site to minimise further activation delays.

The ICON team reviewed the plans weekly throughout the start-up period. The risk management plan also provided guidance to quickly identifying alternate countries to replace the ones experiencing significant regulatory delays.

Furthermore, as mitigation against delays involved with global contract negotiation, ICON and the client developed contract negotiation guidelines that outlined the contracting/negotiation process, accountability, sign off, and buy-in from each party. The involved legal teams also agreed to amend the signature requirements to speed the process considerably.

ICON also assigned CRAs from validation through close-out to provide sites with primary contacts and create client-dedicated project teams. To enhance recruitment results and overall communication with investigators, we assigned CRAs who had already established relationships with the studies’ sites.

Outcome

The client’s reputation in the MS research field combined with ICON’s proactive approach to developing solutions helped mitigate delays. Just over three months after the project team meeting, the team reached its recruitment goal. Although the original timelines were not met, the implementation of the risk management plan prevented additional activation delays.

Lessons learned

Study considerationICON recommendations
Exclusionary medications – Treatment with immunosuppressive agents or lymphocyte trafficking blockers within 6 months prior to randomisationOffer re-screening to subjects who do not meet the required washout period. For subjects where this is the only exclusionary criteria met and subject is motivated to enter the trial, offer re consent and re-screening at a later date.
EDSS – Key strategies to ensure quality
data
Mandate same rater to perform EDSS at site throughout all subjects’ study visits, ensuring inter-rater variability is eliminated. The most robust EDSS measurement of progression is first after 3 months of suspected progression and second three months after suspected progression and this should be required in protocol.
Patient Information Sheet and
Informed Consent – Subjects may have significant impairment in signing an ICF due to disability
Include an optional witness section in ICF due to patient’s writing difficulties. This will allow subjects with significant writing impairment to have witness confirm valid informed consent of subject
Placebo – ECs/CAs may object to placebo armInclude a well written placebo justification with the initial EC/CA submission, ensuring committee members have concerns addressed pro-actively to reduce queries and/or rejections.
Retention – Subjects and sites may lose motivation after prolonged treatment periodsCreate a retention plan to retain subjects, ensuring subjects remain in study to assess for endpoint assessment. Successful retention strategies such as patient focused newsletters, sponsor letter to subject to emphasise importance of trial, providing lunch and refreshments to subjects and caregivers at visits, and phone call reminders for subject visits.
Patient Travel – Subjects require support for patient travelProvide significant travel support to both bolster recruitment and enhance retention, due to this subject populations’ mobility impairment. Concierge travel services and/or real-time travel reimbursement is a key strategy.
Primary Endpoint – EDSS

Utlise an EDSS tracking tool, allowing sites to enter all the EDSS scores across visits over time to readily visualise and identify progression in real time.

  • Provide clear instructions on criteria for EDSS progression listed on tool for ease of reference.
  • Implement EDC alerts to flag initial and fixed control on EDSS progression scores.
  • Use pop up flag to alert site staff to increase from baseline visit programmed EDC edit checks to create queries for a defined number of month’s confirmation.

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