Genzyme, a Sanofi Company

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Genzyme, a Sanofi Company sits in the top decile of US sponsors by registered trial count (#154 of 15,742 sponsors by registered trial count).

196 total trials 4 currently recruiting 159 completed early-phase tilt top decile by trial count

Genzyme, a Sanofi Company: 196 sponsored US clinical trials, 4 recruiting.

Genzyme, a Sanofi Company sponsors 196 registered US clinical trials on ClinicalTrials.gov, 4 of them currently recruiting, and 159 completed. 65 of these trials are in Phase 3-4 (later-stage) and 114 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Glycogen Storage Disease Type II (GSD-II), with 5 trials.

Top-decile sponsor footprint

Genzyme, a Sanofi Company ranks in the top decile of sponsors by registered trial count (#154 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

D 51/100

159 of 188 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (84.6%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

196 total, page 2 of 4

TERMINATED Phase 4

A Study to Evaluate the Efficacy and Safety of Alglucosidase Alfa Produced at the 4000 L Scale for Pompe Disease

NCT01526785

COMPLETED Phase 1

A Phase I Study of the Pharmacokinetic Variability and Relative Bioavailability of the Phase 3 and Common Blend Formulations of Eliglustat in Healthy Adult Subjects

NCT01452542

COMPLETED Phase 1

A Phase I Dose Escalation Study of Plerixafor in Healthy Subjects of Japanese Descent

NCT01579149

COMPLETED Phase 1

A Phase 1 Study Evaluating Eliglustat's Effects on Pharmacokinetics, Safety & Tolerability of Digoxin in Healthy Adults

NCT01357811

COMPLETED Phase 4

Exploratory Muscle Biopsy Assessment Study in Patients With Late-Onset Pompe Disease Treated With Alglucosidase Alfa

NCT01288027

COMPLETED Phase 4

Evaluation of Approved Weight-Based Dose Compared to Fixed Dose of Plerixafor in Patients With Non-Hodgkin's Lymphoma (NHL) Weighing Less Than 70 Kilograms

NCT01164475

COMPLETED Phase 3

A Study of Eliglustat Tartrate (Genz-112638) in Patients With Gaucher Disease to Evaluate Once Daily Versus Twice Daily Dosing (EDGE)

NCT01074944

COMPLETED Phase 1

Safety and Tolerability Study of AAV2-sFLT01 in Patients With Neovascular Age-Related Macular Degeneration (AMD)

NCT01024998

COMPLETED Phase 1

Study of Plerixafor Combined With Cytarabine and Daunorubicin in Patients With Newly Diagnosed Acute Myeloid Leukemia

NCT00990054

COMPLETED Phase 3

A Study of Eliglustat Tartrate (Genz-112638) in Patients With Gaucher Disease (ENGAGE)

NCT00891202

COMPLETED Phase 1

A Safety and Tolerability Study of Clofarabine, Etoposide, Cyclophosphamide, PEG-asparaginase, and Vincristine in Pediatric Acute Lymphoblastic Leukemia (ALL)

NCT00991133

COMPLETED Phase 4

An Exploratory Study of the Safety and Efficacy of Prophylactic Immunomodulatory Treatment in Myozyme-naive Cross-Reacting Immunologic Material (CRIM[-]) Patients With Infantile-Onset Pompe Disease

NCT00701129

COMPLETED Phase 3

A Study of Eliglustat Tartrate (Genz-112638) in Patients With Gaucher Disease Who Have Reached Therapeutic Goals With Enzyme Replacement Therapy (ENCORE)

NCT00943111

COMPLETED Phase 3

An Extension Protocol for Multiple Sclerosis Patients Who Participated in Genzyme-Sponsored Studies of Alemtuzumab

NCT00930553

COMPLETED Phase 1

Dose Escalation Study to Assess the Safety and Tolerability of Genz-644282 in Patients With Solid Tumors

NCT00942799

COMPLETED Phase 2

Randomized Study Comparing Genz-644470, Placebo, and Sevelamer Carbonate in Chronic Kidney Disease Patients on Hemodialysis

NCT00853242

TERMINATED Phase 4

Immune Tolerance Induction Study

NCT00701701

COMPLETED Phase 3

A Study of Two Fabrazyme (Agalsidase Beta) Dosing Regimens in Treatment-naïve, Male Pediatric Patients Without Severe Symptoms

NCT00701415

TERMINATED Phase 1

A Study of Oral Clofarabine in Adult Patients With Myelodysplastic Syndromes (MDS)

NCT00750334

COMPLETED Phase 4

Growth and Development Study of Alglucosidase Alfa

NCT00486889

COMPLETED Phase 1

Study of AMD3100 (Plerixafor) and Rituximab in Patients With Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

NCT00694590

COMPLETED Phase 2

A Study to Evaluate the Safety and Effectiveness of Doxercalciferol Capsules in Participants With Moderate to Severe Psoriasis

NCT00601107

COMPLETED NA

Sepraspray™ Laparoscopic Myomectomy Study

NCT00624390

COMPLETED Phase 3

Comparison of Alemtuzumab and Rebif® Efficacy in Multiple Sclerosis, Study Two

NCT00548405

COMPLETED Phase 3

Comparison of Alemtuzumab and Rebif® Efficacy in Multiple Sclerosis, Study One

NCT00530348

COMPLETED Phase 2

Study to Determine the Dose, the Safety and Effectiveness of a New Drug, Modified Release rhTSH, in Patients With Multinodular Goiter

NCT00454220

COMPLETED Phase 2

A Dose Confirmation Study of Oral Clofarabine for Adult Patients Previously Treated for Myelodysplastic Syndromes (MDS)

NCT00531232

COMPLETED Phase 3

A Study to Compare the Safety and Effectiveness of a Non-FDA Approved Device Dermal Gel Extra (DGE) and an FDA Approved Device for the Correction of Nasolabial Folds (NLFs)

NCT00444626

COMPLETED Phase 1

Safety Study of GC1008 in Patients With Focal Segmental Glomerulosclerosis (FSGS) of Single Doses of GC1008 in Patients With Treatment Resistant Idiopathic FSGS

NCT00464321

COMPLETED Phase 4

High Dose or High Dose Frequency Study of Alglucosidase Alfa

NCT00483379

COMPLETED Phase 4

A Phase 4 Study to Determine Dosing of Hectorol® Capsules When Converting From Zemplar® Injection

NCT00463021

TERMINATED Phase 3

A Study to Assess the Safety, Tolerability, Effectiveness and Absorption of Exodif™ Tablets in Clostridium Difficile-associated Diarrhea

NCT00466635

COMPLETED Phase 4

Late-Onset Treatment Study Extension Protocol

NCT00455195

COMPLETED Phase 2

A Phase II, Double Blind Study of 2 Doses of ZACTIMA™(ZD6474) in Combination With FOLFIRI vs FOLFIRI Alone for the Treatment of Colorectal Cancer in Patients

NCT00454116

COMPLETED Phase 4

A Phase 4 Pharmacokinetic Study of Hectorol Injection and Zemplar Injection in CKD Subjects on Hemodialysis

NCT00454350

COMPLETED Phase 3

A Study to Compare Subject Comfort During and After Injections With the Study Products and the Safety of the Non-FDA Approved Product for the Correction of Nasolabial Folds (NLFs)

NCT00417469

COMPLETED Phase 3

Efficacy Study Comparing ZD6474 in Combination With Pemetrexed and Pemetrexed Alone in 2nd Line NSCLC Patients

NCT00418886

TERMINATED Phase 1

Safety Study of rhASM Enzyme Replacement Therapy in Adults With Acid Sphingomyelinase Deficiency (Niemann-Pick Disease)

NCT00410566

COMPLETED Phase 3

An Efficacy Study Comparing ZD6474 to Placebo in Medullary Thyroid Cancer

NCT00410761

COMPLETED Phase 4

A Phase 4, Conversion Study of Hectorol® Injection to Hectorol® Capsules in Stage 5 CKD Patients on Dialysis

NCT00418600

COMPLETED Phase 3

ZD6474 (ZACTIMA™) Phase III Study in EGFR Failures

NCT00404924

COMPLETED Phase 2

A Study of Clofarabine for Older Patients With Newly Diagnosed Acute Myelogenous Leukemia (AML) (CLASSIC II)

NCT00373529

COMPLETED Phase 1

Safety and Efficacy Study of GC1008 to Treat Renal Cell Carcinoma or Malignant Melanoma

NCT00356460

COMPLETED Phase 3

A Study of Clofarabine and Cytarabine for Older Patients With Relapsed or Refractory Acute Myelogenous Leukemia (AML)(CLASSIC I)

NCT00317642

COMPLETED Phase 3

Efficacy Trial Comparing ZD6474 With Erlotinib in NSCLC After Failure of at Least One Prior Chemotherapy

NCT00364351

COMPLETED Phase 2

A Study To Assess ZD6474 (ZACTIMA™) Monotherapy In Locally Advanced or Metastatic Hereditary Medullary Thyroid Cancer

NCT00358956

COMPLETED Phase 2

A Study of the Efficacy and Safety of Eliglustat Tartrate (Genz-112638) in Type 1 Gaucher Patients

NCT00358150

TERMINATED Phase 4

Study of the Effects of Fabrazyme Treatment on Lactation and Infants

NCT00230607

COMPLETED Phase 3

ZACTIMA (an Anti-EGFR / Anti-VEGF Agent) Combined With Docetaxel Compared to Docetaxel in Non-small Cell Lung Cancer

NCT00312377

COMPLETED Phase 2

Subcutaneous Alemtuzumab (CAMPATH®, MabCampath®) in Relapsed/Refractory B-Cell Chronic Lymphocytic Leukemia

NCT00328198

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What is open in the Genzyme, a Sanofi Company pipeline

4 recruiting of 196 indexed (2% open); 159 completed (81%).

Phase mix: 65 late (III/IV) vs 114 early (I/II) (early-phase heavy).

Top condition: Glycogen Storage Disease Type II (GSD-II) (5 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Genzyme, a Sanofi Company: open-pipeline peers nationwide

Peers matched on 196 registered trials and 2% open enrollment, not the therapeutic-area sidebar.

Genzyme, a Sanofi Company sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 050100150200250 0%5%10%15%20% Total trials Recruiting share Genzyme, a Sanofi CompanyHospital for Special Surgery, New YorkVertex Pharmaceuticals IncorporatedNational Center for Complementary and Integrative Health (NCCIH)The University of Texas Medical Branch, GalvestonCynosureCarelon ResearchSun Pharmaceutical IndustriesSanofi Pasteur, a Sanofi Company
Genzyme, a Sanofi Company sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Genzyme, a Sanofi Company sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 196 trials (± recruiting share)

Sponsors near 2% open enrollment (± trial volume)

What to do with this Genzyme, a Sanofi Company page

196 registered trials is a research-attention snapshot, not an endorsement of Genzyme, a Sanofi Company or any single study.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. Genzyme, a Sanofi Company pipeline card: 196 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.