Interim Leadership Solutions

LIFE SCIENCES & HEALTHCARE EXECUTIVE TALENT

Leadership that moves at the speed of need

Alder Books places seasoned executives into life sciences and healthcare organizations at the precise moment leadership matters most – interim, fractional or permanent placements.

Interim Leadership

A seasoned executive who steps in full-time to maintain momentum during a leadership gap, whether navigating a critical regulatory milestone, a pipeline transition, or the search for a permanent hire.

Generally full time (4+days per week) and engaged for up to one year or more.

Fractional Leadership

An experienced executive embedded part-time into your organization, bringing proven expertise without the full-time cost. Ideal for pre-commercial startups building toward launch, fundraising, or their first regulatory submission.

Generally part-time (2-3 days per week) and engaged for 3 months+.

Why Alder Brooks

Precision talent for inflection moments.

From FDA submission sprints to post-merger integration, the right interim leader changes everything. Our network of battle tested executives steps in fast, leads with authority, and exits with the organization stronger.

Functional Expertise

From the boardroom to the function, our fractional and interim executives step in at every level of the organization to deliver results from day one.

Commercial

Commercial executives to translate innovation into revenue - building go-to-market strategy, market access, pricing, and launch execution across clinical and post-approval stages.

Strategic Leadership

Steady the ship, reignite strategy, and lead the organization through build, turnaround or transition.

Finance

Financial executives for fundraising, restructure, and institutional confidence at critical moments.

Human Resources

People leadership through restructuring, culture change, and periods of rapid workforce scaling.

Legal

Legal experts to navigate regulatory complexity, protect enterprise value, and enable growth - from clinical development and compliance to transactions, IP, and governance.

Marketing

Marketing executives for businesses that need strategic horsepower without full-time cost.

Medical Expertise

Experienced medical experts for companies navigating clinical development, regulatory strategy, and commercialization decisions, with a focus on patient safety, data integrity, and cross‑functional alignment.

Operations

Operational leaders who build process, structure, and performance infrastructure at pace.

Scientific Leadership

Scientific experts for companies advancing discovery through development, with expertise in translational science and pipeline strategy. Able to align research, clinical, and commercial priorities while accelerating innovation, ensuring scientific rigor, and maximizing asset value.

Colleen Cremen

Managing Director
Interim Leadership Solutions

Colleen leads Alder Brooks’ interim and fractional leadership practice, partnering with life sciences and healthcare organizations to deliver experienced executives at critical inflection points. She connects companies with proven leaders on a flexible, on-demand basis—supporting growth, transformation, and leadership continuity when timing is essential. A seasoned executive search and talent strategy leader, Colleen brings deep experience across life sciences and healthcare organizations, with a track record of aligning leadership with business outcomes through interim, fractional, and permanent solutions.

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