ClinicalTrials.gg
Active, not recruitingNCT03432520Updated Nov 29, 2024

Long-Term Safety and Efficacy of Spark-Sponsored Gene Therapies in Males With Hemophilia A

An observational study in Hemophilia A, sponsored by Spark Therapeutics, Inc.. Active, not recruiting at 12 sites in 3 countries. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-11-29.

Sponsored by Spark Therapeutics, Inc. (part of Hoffmann-La Roche) · Observational

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Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
29
Ages
18 Years and older
Sex
Male
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 25 studies in Hemophilia A by Hoffmann-La Roche — 5 open to participants now, 8 under way, 4 of them phase 3. Hemophilia A · Hoffmann-La Roche.

Started
2018
with 3 others
Observational
4 of 25
none open now
Registered
13th of 25
by date

Among the 25 studies in Hemophilia A by Hoffmann-La Roche, this one is one of 4 that started in 2018, is one of 4 observational ones, and was the 13th registered.

Hemophilia A

844 studies on the registry are indexed under Hemophilia A; 136 are open to participants now.

Browse Hemophilia A studies →

Open to participants now

5 of the 25 studies in Hemophilia A by Hoffmann-La Roche are open now, in 12 countries. Recruiting first, the newest first:

By country, each count listing its studies:

All 5 open studies →

Who these studies take

Of the 87 Hemophilia A studies recruiting now, 51 (59%) set no upper age limit and 31 (36%) stop at 75 or younger; 55 take children under 18; 10 take healthy volunteers.

This study: 18 Years and older · male · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 25 studies in Hemophilia A by Hoffmann-La Roche, or all of them as a file.
02

Study summary

This long-term follow-up study will continue to evaluate the long-term safety and efficacy of SPK-8011 and SPK-8016 in males with hemophilia A, who have received a single intravenous administration of SPK-8011 or SPK-8016 in any Spark-sponsored SPK-8011 or SPK-8016 study.

Read the detailed description

This study will follow patients with hemophilia A, who have received a single intravenous administration of SPK-8011 or SPK-8016 in any prior Spark-sponsored SPK-8011 or SPK-8016 study. Participants will be followed for up to a total of 10 years post infusion (including the time on the dosing study).

03

Conditions studied

  • Hemophilia A

Browse trials for

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Males with hemophilia A, who received a single intravenous administration of SPK-8011 or SPK-8016 in any Spark-sponsored study.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Participants are eligible to be included in the study only if all of the following criteria apply:

  1. Have received a single intravenous administration of SPK-8011 or SPK-8016 in either Study SPK-8011-101 or SPK-8016-101, respectively.
  2. Understand the purpose and risks of the study and provide signed and dated before undergoing any study-specific procedures.

Exclusion criteria

Exclusion Criteria

Participants are excluded from the study if any of the following criteria apply:

1.Unable or unwilling to comply with the schedule of visits and study assessments as described in this study protocol.

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
29 participants (actual)
Patient registry
No

Interventions

  • GeneticSPK-8011

    Observational long-term safety follow-up study of participants previously treated with SPK-8011 in any Spark-sponsored SPK-8011 study

  • GeneticSPK-8016

    Observational long-term safety follow-up study of participants previously treated with SPK-8016 in any Spark-sponsored SPK-8016 study

06

What researchers measure

Primary outcomes

  1. Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)

    Time frame: Up to 9 years

  2. Number of Participants with Adverse Events of Special Interest (AESIs)

    Time frame: Up to 9 years

  3. Incidence of Coagulation Factor VIII (FVIII) Inhibitor Development

    Time frame: Up to 9 years

  4. Number of Participants with Clinical Laboratory Abnormalities

    Time frame: Up to 9 years

  5. Number of Participants with Vital Sign Abnormalities

    Time frame: Up to 9 years

  6. Number of Participants with Physical Exam Abnormalities

    Time frame: Up to 9 years

07

Study locations

12 sites
08

References and documents

Publications

  • George LA, Monahan PE, Eyster ME, Sullivan SK, Ragni MV, Croteau SE, Rasko JEJ, Recht M, Samelson-Jones BJ, MacDougall A, Jaworski K, Noble R, Curran M, Kuranda K, Mingozzi F, Chang T, Reape KZ, Anguela XM, High KA. Multiyear Factor VIII Expression after AAV Gene Transfer for Hemophilia A. N Engl J Med. 2021 Nov 18;385(21):1961-1973. doi: 10.1056/NEJMoa2104205. PubMed 34788507 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2018 (actual). Primary completion is estimated for Dec 2032, 172 months after the start.

Of 53 industry-sponsored observational studies under Hemophilia A, half reached primary completion within 58 months of starting (the median), counting those still running; a quarter within 34 and three quarters within 79. This study's planned 172 months is above that.

Counting every sponsor, half of 131 studies reached it within 45 months; a quarter within 25 and three quarters within 79.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 24, 2018
First posted
Feb 14, 2018
StartActual
Aug 14, 2018
Primary completionEst.
Dec 2032
CompletionEst.
Dec 2032
Last update
Nov 29, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 29, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03432520
Responsible party
Sponsor
First posted
Feb 14, 2018
Start date
Aug 14, 2018
Primary completion
Dec 2032 (estimated)
Completion
Dec 2032 (estimated)
Last update
Nov 29, 2024

Study contacts

Clinical Trial Director
study director · Spark Therapeutics, Inc.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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