Overall compliance

92.0%

+5.2% vs goal

Diary completion (90 days)

95.0%

2–3× vs baseline

Deviation prevention rate

87%

Via proactive concierge outreach

Compliance & retention for modern trials

Where Compliance Actually Happens.

Delve Health combines eCOA, human concierge, and digital measures so your trials hit compliance and retention targets without adding burden for sites.

92–98% diary completion · 2–3× retention uplift.

Delve Concierge

📞 Phone 💬 Chat 👤 Human support

Online · 65+ languages

I missed today’s diary and I’m not sure what to do.
No problem — I can walk you through it now. It only takes about 2 minutes.
I’ve also checked your device for you — everything is syncing correctly.
Delve concierge coordinator
Coordinator online Watching tasks in real time
78

Studies Supported

60+

Countries Served

800K+

Participants Supported

20+

Integrated Wearables

Outcomes that matter

Retention & compliance at scale.

  • Reduce dropouts with proactive, human-led follow-up and real-time alerts.
  • Increase compliance with multilingual support and personalized patient journeys.
  • Run hybrid and decentralized trials without adding vendors or complexity.
  • Access real-time data and analytics to make faster, better-informed decisions.

Patient Retention Over Time

Delve Health vs. industry average

Month 198% · 95%
Month 394% · 85%
Month 690% · 75%
Month 1287% · 65%
Delve Health
Industry Avg

90–98%

eDiary / ePRO Completion

2–3×

Improvement in Retention

60%

Fewer Missed Tasks & Syncs

30%

Less Site Burden

How it works

How Delve protects your endpoint — between every visit.

Technology sees the drift. A real person fixes it. Your endpoint stays intact — every visit, for the life of the study.

The Between-Visit Recovery Loop: Delve's Concierge-as-a-Service model — monitor patient drift, intervene with a human coordinator, resolve closed-loop — repeating between every visit.

Human-driven clinical trial

Concierge-as-a-Service™

Technology can remind. Humans get results. Delve’s concierges watch study activity in real time and step in the moment a participant drifts—protecting compliance before it becomes a deviation or a dropout.

They also pre-screen referrals, guide patients through structured questions, confirm interest, and deliver only qualified candidates to sites.

The result: higher completion, fewer dropouts, and calmer, more predictable studies.

Learn More
Delve Health concierge team supporting clinical trials

The Compliance & Retention Operating System.

Delve wraps compliance and retention around an integrated digital platform—combining eCOA, digital measures, consent, and analytics with a human layer that keeps everything moving.

Who We Serve

Whether you're developing a drug, launching a device, or leading a site network, Delve Health surrounds your study with the compliance and retention support it needs to finish strong.

The Difference Sites Feel Immediately

Before Delve

  • Too many patient calls and reminders consuming coordinator time
  • Manual prescreening lists draining staff capacity
  • Device setup and troubleshooting taking hours
  • Missed visits and last-minute rescheduling chaos
  • Keeping multiple systems in sync by hand
  • High turnover risk from coordinator burnout

With Delve

  • Concierge team owns reminders, follow-ups, and rescheduling
  • Prescreening assistance with escalation only when needed
  • Clear device workflows + rapid troubleshooting for participants
  • Visit confirmations and real-time coordination to prevent misses
  • Cleaner handoffs across systems with fewer manual touches
  • Reduced admin burden so coordinators focus on patient care

Sites reclaim hours every week — and patients stay supported between visits.

Where concierge delivers

Compliance, actively managed — not passively measured.

2–3×

Completion uplift vs. reminder-only programs

92%

ePRO completion with human follow-up

95%

Device compliance across wearable studies

87%

Patient retention at month 6

60%

Faster median issue resolution

Representative benchmarks · study-level reporting available.

Proven in real studies

What it looks like when someone owns the gap.

Phase III Oncology · Hybrid

Wearable compliance, 60% → 85% in six weeks

A global biopharma sponsor was seeing 60% wearable compliance across enrolled patients. Delve deployed concierge device retraining, proactive monitoring, and enhanced site support.

85%

Final compliance

+25%

Compliance boost

6 wks

Time to goal

Source: Delve Health Oncology Case Study

Phase III COPD · Hybrid · 300 participants

Protecting submission-quality data in a respiratory program

A U.S. biopharma faced high missingness in daily PROs threatening the primary endpoint. Delve added protocol-trained human support inside the digital workflow across US + EU sites.

94%

eDiary completion (vs 68% baseline)

88%

Retention at month 6

Source: Delve Health Sponsor Concierge Case Study 2025

View Case Studies

Latest from our Knowledge Hub

Operational, practical guidance on clinical trial compliance, eCOA quality, wearable data continuity, and patient retention — written by the team running these trials every day.

eCOA

What is eCOA in Clinical Trials?

A working definition of electronic clinical outcome assessment and how it fits modern trial designs.

eCOA

How to Choose an eCOA Vendor

Evaluation criteria that go beyond software — execution, support, compliance, and site impact.

Endpoints

eCOA vs ePRO vs DHT

How these three categories differ — and why modern trials need all of them working together.

Wearables

Wearable Compliance in Clinical Trials

Wear-time, drift, and what to monitor when wearables drive your endpoints.

Retention

Patient Retention in Clinical Trials

Operational playbook for keeping patients enrolled and engaged through every visit.

Operations

Why eCOA Data Fails in the Real World

The hidden failure modes — missed diaries, patient drift, fragmented systems — and what fixes them.

Explore the full Knowledge Hub →

Ready to Make Compliance Your Advantage?

Bring Delve into your next protocol as the compliance and retention layer — so your team can focus on the science, not the chasing.

Talk About Your Study