CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 59 enrolled / 59 target
Drug / intervention
TransCon PTH +1 morecombination
Likely dose
TransCon PTH 0.3 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04009291
NCT04009291Phase 2CompletedMonitor (0.7/mo)Completion was 75mo ago

PaTH Forward: A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel Group Trial With an Open-Label Extension, Investigating the Safety, Tolerability and Efficacy of TransCon PTH Administered Subcutaneously Daily in Adults With Hypoparathyroidism

Ascendis Pharma A/S·interventional·Posted Jul 5, 2019·Updated Jun 18, 2026

In Brief

A Phase 2 clinical trial evaluating TransCon PTH and Placebo for TransCon PTH for Hypoparathyroidism and 2 related conditions. Completed, enrolled 59 participants across 15 sites in 6 countries.

Signals

Enrolling slower than its timeline implies

Detailed Summary

During the first four weeks of the trial, participants were randomly assigned to one of four groups: three groups received fixed doses of TransCon PTH and one group received placebo. TransCon PTH or placebo were administered as a subcutaneous injection using a pre-filled injection pen. Neither trial participants nor their doctors know who has been assigned to each group. After the four weeks, participants continued in the trial as part of a long-term extension period. During the extension, all participants received TransCon PTH, with the dose adjusted to their individual needs. This was a global trial that was conducted in the United States, Canada, Germany, Denmark, Italy and Norway.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada, Denmark, Germany, Italy, Norway, United States
Collaborators--

Timeline

Phase 2CompletedFinished
2020202120222023202420252026
First PostedJul 5, 2019
Enrollment StartAug 27, 2019
Primary CompletionMar 6, 2020
Study CompletionApr 17, 2025
TodayJul 2, 2026
Enrollment to primary: 6 monthsPosted 7.0 years ago

Arms & Interventions

Double Blind: TransCon PTH 15 mcgexperimental

TransCon PTH 15 mcg delivered once daily by subcutaneous injection

Combination Product: TransCon PTH
Double Blind: TransCon PTH 18 mcgexperimental

TransCon PTH 18 mcg delivered once daily by subcutaneous injection

Combination Product: TransCon PTH
Double Blind: TransCon PTH 21 mcgexperimental

TransCon PTH 21 mcg delivered once daily by subcutaneous injection

Combination Product: TransCon PTH
Placeboplacebo_comparator

Placebo mimicking 15, 18, or 21 mcg of TransCon PTH delivered once daily by subcutaneous injection

Combination Product: Placebo for TransCon PTH
Open-Label Extension Period: TransCon PTHexperimental

Participants who completed the 4-week double-blind period, continued into the open-label extension period and received treatment with TransCon PTH up to Week 266, with up to an initial 14 weeks of TransCon PTH titration and standard of care optimization, followed by approximately 248 weeks of individualized doses of TransCon PTH (allowable dose range: 6 to 60 mcg/day).

Combination Product: TransCon PTH

Interventions

TransCon PTHcombination

TransCon PTH drug product is supplied as a clear solution containing TransCon PTH with a nominal PTH(1-34) content of 0.3 mg/mL in a pre-filled pen intended for subcutaneous injection.

Placebo for TransCon PTHcombination

Placebo is supplied as a clear solution containing the formulation buffer for TransCon PTH in a pre-filled pen intended for subcutaneous injection.